[Pkg-javascript-commits] [node-acorn-jsx] 267/484: Split ES6 Template logic from main functionality.
Bastien Roucariès
rouca at moszumanska.debian.org
Sat Aug 19 14:20:42 UTC 2017
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rouca pushed a commit to branch master
in repository node-acorn-jsx.
commit 372e1d42f398ceaffe27151348af67084f121d27
Author: Ingvar Stepanyan <me at rreverser.com>
Date: Mon Aug 4 13:47:28 2014 +0300
Split ES6 Template logic from main functionality.
---
acorn.js | 153 ++++++++++++++++++-------------
index.html | 297 +++++++++++++++++++++++++++++++++----------------------------
2 files changed, 250 insertions(+), 200 deletions(-)
diff --git a/acorn.js b/acorn.js
index 5c09efb..3d5b645 100644
--- a/acorn.js
+++ b/acorn.js
@@ -535,11 +535,11 @@
// `tokRegexpAllowed`, and skips the space after the token, so that
// the next one's `tokStart` will point at the right position.
- function finishToken(type, val) {
+ function finishToken(type, val, shouldSkipSpace) {
tokEnd = tokPos;
if (options.locations) tokEndLoc = new Position;
tokType = type;
- if (type !== _bquote || inTemplate) skipSpace();
+ if (shouldSkipSpace !== false) skipSpace();
tokVal = val;
tokRegexpAllowed = type.beforeExpr;
if (options.onToken) {
@@ -720,24 +720,32 @@
return finishOp(code === 61 ? _eq : _prefix, 1);
}
- function getTokenFromCode(code) {
- // Special rules work inside ES6 template strings.
- if (inTemplate) {
- // '`' and '${' have special meanings, but they should follow string (can be empty)
- if (tokType === _string) {
- if (code === 96) { // '`'
- ++tokPos;
- return finishToken(_bquote);
- }
- if (code === 36 && input.charCodeAt(tokPos + 1) === 123) { // '${'
- tokPos += 2;
- return finishToken(_dollarBraceL);
- }
+ // Get token inside ES6 template (special rules work there).
+
+ function getTemplateToken(code) {
+ // '`' and '${' have special meanings, but they should follow
+ // string (can be empty)
+ if (tokType === _string) {
+ if (code === 96) { // '`'
+ ++tokPos;
+ return finishToken(_bquote);
+ } else
+ if (code === 36 && input.charCodeAt(tokPos + 1) === 123) { // '${'
+ tokPos += 2;
+ return finishToken(_dollarBraceL);
}
- // anything else is considered string literal
- return readString();
}
+ if (code === 125) { // '}'
+ ++tokPos;
+ return finishToken(_braceR, undefined, false);
+ }
+
+ // anything else is considered string literal
+ return readTmplString();
+ }
+
+ function getTokenFromCode(code) {
switch (code) {
// The interpretation of a dot depends on whether it is followed
// by a digit or another two dots.
@@ -759,7 +767,7 @@
case 96: // '`'
if (options.ecmaVersion >= 6) {
++tokPos;
- return finishToken(_bquote);
+ return finishToken(_bquote, undefined, false);
}
case 48: // '0'
@@ -819,9 +827,12 @@
if (tokPos >= inputLen) return finishToken(_eof);
var code = input.charCodeAt(tokPos);
+
+ if (inTemplate) return getTemplateToken(code);
+
// Identifier or keyword. '\uXXXX' sequences are allowed in
// identifiers, so '\' also dispatches to that.
- if (!inTemplate && (isIdentifierStart(code) || code === 92 /* '\' */)) return readWord();
+ if (isIdentifierStart(code) || code === 92 /* '\' */) return readWord();
var tok = getTokenFromCode(code);
@@ -954,62 +965,46 @@
}
function readString(quote) {
- if (!inTemplate) tokPos++;
+ ++tokPos;
var out = "";
for (;;) {
if (tokPos >= inputLen) raise(tokStart, "Unterminated string constant");
var ch = input.charCodeAt(tokPos);
- if (inTemplate) {
- if (ch === 96 || ch === 36 && input.charCodeAt(tokPos + 1) === 123) // '`', '${'
- return finishToken(_string, out);
- } else if (ch === quote) {
+ if (ch === quote) {
++tokPos;
return finishToken(_string, out);
}
if (ch === 92) { // '\'
- ch = input.charCodeAt(++tokPos);
- var octal = /^[0-7]+/.exec(input.slice(tokPos, tokPos + 3));
- if (octal) octal = octal[0];
- while (octal && parseInt(octal, 8) > 255) octal = octal.slice(0, -1);
- if (octal === "0") octal = null;
+ out += readEscapedChar();
+ } else {
++tokPos;
- if (octal) {
- if (strict) raise(tokPos - 2, "Octal literal in strict mode");
- out += String.fromCharCode(parseInt(octal, 8));
- tokPos += octal.length - 1;
- } else {
- switch (ch) {
- case 110: out += "\n"; break; // 'n' -> '\n'
- case 114: out += "\r"; break; // 'r' -> '\r'
- case 120: out += String.fromCharCode(readHexChar(2)); break; // 'x'
- case 117: out += readCodePoint(); break; // 'u'
- case 85: out += String.fromCharCode(readHexChar(8)); break; // 'U'
- case 116: out += "\t"; break; // 't' -> '\t'
- case 98: out += "\b"; break; // 'b' -> '\b'
- case 118: out += "\u000b"; break; // 'v' -> '\u000b'
- case 102: out += "\f"; break; // 'f' -> '\f'
- case 48: out += "\0"; break; // 0 -> '\0'
- case 13: if (input.charCodeAt(tokPos) === 10) ++tokPos; // '\r\n'
- case 10: // ' \n'
- if (options.locations) { tokLineStart = tokPos; ++tokCurLine; }
- break;
- default: out += String.fromCharCode(ch); break;
- }
+ if (newline.test(String.fromCharCode(ch))) {
+ raise(tokStart, "Unterminated string constant");
}
+ out += String.fromCharCode(ch); // '\'
+ }
+ }
+ }
+
+ function readTmplString() {
+ var out = "";
+ for (;;) {
+ if (tokPos >= inputLen) raise(tokStart, "Unterminated string constant");
+ var ch = input.charCodeAt(tokPos);
+ if (ch === 96 || ch === 36 && input.charCodeAt(tokPos + 1) === 123) // '`', '${'
+ return finishToken(_string, out);
+ if (ch === 92) { // '\'
+ out += readEscapedChar();
} else {
++tokPos;
if (newline.test(String.fromCharCode(ch))) {
- if (inTemplate) {
- if (ch === 13 && input.charCodeAt(tokPos) === 10) {
- ++tokPos;
- ch = 10;
- }
- if (options.locations) {
- ++tokCurLine;
- tokLineStart = tokPos;
- }
- } else {
- raise(tokStart, "Unterminated string constant");
+ if (ch === 13 && input.charCodeAt(tokPos) === 10) {
+ ++tokPos;
+ ch = 10;
+ }
+ if (options.locations) {
+ ++tokCurLine;
+ tokLineStart = tokPos;
}
}
out += String.fromCharCode(ch); // '\'
@@ -1017,6 +1012,40 @@
}
}
+ // Used to read escaped characters
+
+ function readEscapedChar() {
+ var ch = input.charCodeAt(++tokPos);
+ var octal = /^[0-7]+/.exec(input.slice(tokPos, tokPos + 3));
+ if (octal) octal = octal[0];
+ while (octal && parseInt(octal, 8) > 255) octal = octal.slice(0, -1);
+ if (octal === "0") octal = null;
+ ++tokPos;
+ if (octal) {
+ if (strict) raise(tokPos - 2, "Octal literal in strict mode");
+ tokPos += octal.length - 1;
+ return String.fromCharCode(parseInt(octal, 8));
+ } else {
+ switch (ch) {
+ case 110: return "\n"; // 'n' -> '\n'
+ case 114: return "\r"; // 'r' -> '\r'
+ case 120: return String.fromCharCode(readHexChar(2)); // 'x'
+ case 117: return readCodePoint(); // 'u'
+ case 85: return String.fromCharCode(readHexChar(8)); // 'U'
+ case 116: return "\t"; // 't' -> '\t'
+ case 98: return "\b"; // 'b' -> '\b'
+ case 118: return "\u000b"; // 'v' -> '\u000b'
+ case 102: return "\f"; // 'f' -> '\f'
+ case 48: return "\0"; // 0 -> '\0'
+ case 13: if (input.charCodeAt(tokPos) === 10) ++tokPos; // '\r\n'
+ case 10: // ' \n'
+ if (options.locations) { tokLineStart = tokPos; ++tokCurLine; }
+ return "";
+ default: return String.fromCharCode(ch);
+ }
+ }
+ }
+
// Used to read character escape sequences ('\x', '\u', '\U').
function readHexChar(len) {
diff --git a/index.html b/index.html
index df9cba4..797684e 100644
--- a/index.html
+++ b/index.html
@@ -326,11 +326,11 @@ line break). Used to count lines.</p> </td> <td class="c
<span class="nx">skipSpace</span><span class="p">();</span>
<span class="p">}</span></pre></div> </td> </tr> <tr id="section-60"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-60">¶</a> </div> <p>Called at the end of every token. Sets <code>tokEnd</code>, <code>tokVal</code>, and
<code>tokRegexpAllowed</code>, and skips the space after the token, so that
-the next one's <code>tokStart</code> will point at the right position.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">finishToken</span><span class="p">(</span><span class="nx">type</span><span class="p">,</span> <span class="nx">val</span><span class="p">)</span> <span class="p">{</span>
+the next one's <code>tokStart</code> will point at the right position.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">finishToken</span><span class="p">(</span><span class="nx">type</span><span class="p">,</span> <span class="nx">val</span><span class="p">,</span> <span class="nx">shouldSkipSpace</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">tokEnd</span> <span class="o">=</span> <span class="nx">tokPos</span><span class="p">;</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">options</span><span class="p">.</span><span class="nx">locations</span><span class="p">)</span> <span class="nx">tokEndLoc</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">Position</span><span class="p">;</span>
<span class="nx">tokType</span> <span class="o">=</span> <span class="nx">type</span><span class="p">;</span>
- <span class="k">if</span> <span class="p">(</span><span class="nx">type</span> <span class="o">!==</span> <span class="nx">_bquote</span> <span class="o">||</span> <span class="nx">inTemplate</span><span class="p">)</span> <span class="nx">skipSpace</span><span class="p">();</span>
+ <span class="k">if</span> <span class="p">(</span><span class="nx">shouldSkipSpace</span> <span class="o">!==</span> <span class="kc">false</span><span class="p">)</span> <span class="nx">skipSpace</span><span class="p">();</span>
<span class="nx">tokVal</span> <span class="o">=</span> <span class="nx">val</span><span class="p">;</span>
<span class="nx">tokRegexpAllowed</span> <span class="o">=</span> <span class="nx">type</span><span class="p">.</span><span class="nx">beforeExpr</span><span class="p">;</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">options</span><span class="p">.</span><span class="nx">onToken</span><span class="p">)</span> <span class="p">{</span>
@@ -495,20 +495,25 @@ into it.</p>
<span class="k">return</span> <span class="nx">finishToken</span><span class="p">(</span><span class="nx">_arrow</span><span class="p">);</span>
<span class="p">}</span>
<span class="k">return</span> <span class="nx">finishOp</span><span class="p">(</span><span class="nx">code</span> <span class="o">===</span> <span class="mi">61</span> <span class="o">?</span> <span class="nx">_eq</span> <span class="o">:</span> <span class="nx">_prefix</span><span class="p">,</span> <span class="mi">1</span><span class="p">);</span>
- <span class="p">}</span>
-
- <span class="kd">function</span> <span class="nx">getTokenFromCode</span><span class="p">(</span><span class="nx">code</span><span class="p">)</span> <span class="p">{</span></pre></div> </td> </tr> <tr id="section-66"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-66">¶</a> </div> <p>Special rules work inside ES6 template strings.</ [...]
- <span class="k">if</span> <span class="p">(</span><span class="nx">code</span> <span class="o">===</span> <span class="mi">96</span><span class="p">)</span> <span class="p">{</span> <span class="c1">// '`'</span>
- <span class="o">++</span><span class="nx">tokPos</span><span class="p">;</span>
- <span class="k">return</span> <span class="nx">finishToken</span><span class="p">(</span><span class="nx">_bquote</span><span class="p">);</span>
- <span class="p">}</span>
- <span class="k">if</span> <span class="p">(</span><span class="nx">code</span> <span class="o">===</span> <span class="mi">36</span> <span class="o">&&</span> <span class="nx">input</span><span class="p">.</span><span class="nx">charCodeAt</span><span class="p">(</span><span class="nx">tokPos</span> <span class="o">+</span> <span class="mi">1</span><span class="p">)</span> <span class="o">===</span> <span class="mi">123</span><span class="p">)</span> <span class="p">{</sp [...]
- <span class="nx">tokPos</span> <span class="o">+=</span> <span class="mi">2</span><span class="p">;</span>
- <span class="k">return</span> <span class="nx">finishToken</span><span class="p">(</span><span class="nx">_dollarBraceL</span><span class="p">);</span>
- <span class="p">}</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-68"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-68">¶</a> </div> <p>anything else is considered string literal</p> </td> <td class="code"> <div class="highlight"><pre> <span class="k">return</span> <span class="nx">readS [...]
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-66"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-66">¶</a> </div> <p>Get token inside ES6 template (special rules work there).</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class= [...]
+string (can be empty)</p> </td> <td class="code"> <div class="highlight"><pre> <span class="k">if</span> <span class="p">(</span><span class="nx">tokType</span> <span class="o">===</span> <span class="nx">_string</span><span class="p">)</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="nx">code</span> <span class="o">===</span> <span class="mi">96</span><span class="p">)</span> <span class="p">{</span> <span class="c1">// '`'</span>
+ <span class="o">++</span><span class="nx">tokPos</span><span class="p">;</span>
+ <span class="k">return</span> <span class="nx">finishToken</span><span class="p">(</span><span class="nx">_bquote</span><span class="p">);</span>
+ <span class="p">}</span> <span class="k">else</span>
+ <span class="k">if</span> <span class="p">(</span><span class="nx">code</span> <span class="o">===</span> <span class="mi">36</span> <span class="o">&&</span> <span class="nx">input</span><span class="p">.</span><span class="nx">charCodeAt</span><span class="p">(</span><span class="nx">tokPos</span> <span class="o">+</span> <span class="mi">1</span><span class="p">)</span> <span class="o">===</span> <span class="mi">123</span><span class="p">)</span> <span class="p">{</span [...]
+ <span class="nx">tokPos</span> <span class="o">+=</span> <span class="mi">2</span><span class="p">;</span>
+ <span class="k">return</span> <span class="nx">finishToken</span><span class="p">(</span><span class="nx">_dollarBraceL</span><span class="p">);</span>
+ <span class="p">}</span>
<span class="p">}</span>
+ <span class="k">if</span> <span class="p">(</span><span class="nx">code</span> <span class="o">===</span> <span class="mi">125</span><span class="p">)</span> <span class="p">{</span> <span class="c1">// '}'</span>
+ <span class="o">++</span><span class="nx">tokPos</span><span class="p">;</span>
+ <span class="k">return</span> <span class="nx">finishToken</span><span class="p">(</span><span class="nx">_braceR</span><span class="p">,</span> <span class="kc">undefined</span><span class="p">,</span> <span class="kc">false</span><span class="p">);</span>
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-68"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-68">¶</a> </div> <p>anything else is considered string literal</p> </td> <td class="code"> <div class="highlight"><pre> <span class="k">return</span> <span class="nx">readTmplS [...]
+ <span class="p">}</span>
+
+ <span class="kd">function</span> <span class="nx">getTokenFromCode</span><span class="p">(</span><span class="nx">code</span><span class="p">)</span> <span class="p">{</span>
<span class="k">switch</span> <span class="p">(</span><span class="nx">code</span><span class="p">)</span> <span class="p">{</span></pre></div> </td> </tr> <tr id="section-69"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-69">¶</a> </div> <p>The interpretation of a dot depends on whether it is followed
by a digit or another two dots.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="k">case</span> <span class="mi">46</span><span class="o">:</span> <span class="c1">// '.'</span>
<span class="k">return</span> <span class="nx">readToken_dot</span><span class="p">();</span></pre></div> </td> </tr> <tr id="section-70"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-70">¶</a> </div> <p>Punctuation tokens.</p> </td> <td class="code"> <div class="highlight"><pre> <span cl [...]
@@ -525,7 +530,7 @@ by a digit or another two dots.</p> </td> <td class="cod
<span class="k">case</span> <span class="mi">96</span><span class="o">:</span> <span class="c1">// '`'</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">options</span><span class="p">.</span><span class="nx">ecmaVersion</span> <span class="o">>=</span> <span class="mi">6</span><span class="p">)</span> <span class="p">{</span>
<span class="o">++</span><span class="nx">tokPos</span><span class="p">;</span>
- <span class="k">return</span> <span class="nx">finishToken</span><span class="p">(</span><span class="nx">_bquote</span><span class="p">);</span>
+ <span class="k">return</span> <span class="nx">finishToken</span><span class="p">(</span><span class="nx">_bquote</span><span class="p">,</span> <span class="kc">undefined</span><span class="p">,</span> <span class="kc">false</span><span class="p">);</span>
<span class="p">}</span>
<span class="k">case</span> <span class="mi">48</span><span class="o">:</span> <span class="c1">// '0'</span>
@@ -575,8 +580,10 @@ of the type given by its first argument.</p> </td> <td c
<span class="k">if</span> <span class="p">(</span><span class="nx">forceRegexp</span><span class="p">)</span> <span class="k">return</span> <span class="nx">readRegexp</span><span class="p">();</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">tokPos</span> <span class="o">>=</span> <span class="nx">inputLen</span><span class="p">)</span> <span class="k">return</span> <span class="nx">finishToken</span><span class="p">(</span><span class="nx">_eof</span><span class="p">);</span>
- <span class="kd">var</span> <span class="nx">code</span> <span class="o">=</span> <span class="nx">input</span><span class="p">.</span><span class="nx">charCodeAt</span><span class="p">(</span><span class="nx">tokPos</span><span class="p">);</span></pre></div> </td> </tr> <tr id="section-74"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-74">¶</a> [...]
-identifiers, so '\' also dispatches to that.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">inTemplate</span> <span class="o">&&</span> <span class="p">(</span><span class="nx">isIdentifierStart</span><span class="p">(</span><span class="nx">code</span><span class="p">)</span> <span class="o">||</span> <span class="nx">code</span> <span cla [...]
+ <span class="kd">var</span> <span class="nx">code</span> <span class="o">=</span> <span class="nx">input</span><span class="p">.</span><span class="nx">charCodeAt</span><span class="p">(</span><span class="nx">tokPos</span><span class="p">);</span>
+
+ <span class="k">if</span> <span class="p">(</span><span class="nx">inTemplate</span><span class="p">)</span> <span class="k">return</span> <span class="nx">getTemplateToken</span><span class="p">(</span><span class="nx">code</span><span class="p">);</span></pre></div> </td> </tr> <tr id="section-74"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-74">¶</a> [...]
+identifiers, so '\' also dispatches to that.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="k">if</span> <span class="p">(</span><span class="nx">isIdentifierStart</span><span class="p">(</span><span class="nx">code</span><span class="p">)</span> <span class="o">||</span> <span class="nx">code</span> <span class="o">===</span> <span class="mi">92</span> <span class="cm">/* '\' */</span><span class="p">)</span> <span [...]
<span class="kd">var</span> <span class="nx">tok</span> <span class="o">=</span> <span class="nx">getTokenFromCode</span><span class="p">(</span><span class="nx">code</span><span class="p">);</span>
@@ -686,74 +693,88 @@ will return <code>null</code> unless the integer has exactly <code>len</code> di
<span class="p">}</span>
<span class="kd">function</span> <span class="nx">readString</span><span class="p">(</span><span class="nx">quote</span><span class="p">)</span> <span class="p">{</span>
- <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">inTemplate</span><span class="p">)</span> <span class="nx">tokPos</span><span class="o">++</span><span class="p">;</span>
+ <span class="o">++</span><span class="nx">tokPos</span><span class="p">;</span>
<span class="kd">var</span> <span class="nx">out</span> <span class="o">=</span> <span class="s2">""</span><span class="p">;</span>
<span class="k">for</span> <span class="p">(;;)</span> <span class="p">{</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">tokPos</span> <span class="o">>=</span> <span class="nx">inputLen</span><span class="p">)</span> <span class="nx">raise</span><span class="p">(</span><span class="nx">tokStart</span><span class="p">,</span> <span class="s2">"Unterminated string constant"</span><span class="p">);</span>
<span class="kd">var</span> <span class="nx">ch</span> <span class="o">=</span> <span class="nx">input</span><span class="p">.</span><span class="nx">charCodeAt</span><span class="p">(</span><span class="nx">tokPos</span><span class="p">);</span>
- <span class="k">if</span> <span class="p">(</span><span class="nx">inTemplate</span><span class="p">)</span> <span class="p">{</span>
- <span class="k">if</span> <span class="p">(</span><span class="nx">ch</span> <span class="o">===</span> <span class="mi">96</span> <span class="o">||</span> <span class="nx">ch</span> <span class="o">===</span> <span class="mi">36</span> <span class="o">&&</span> <span class="nx">input</span><span class="p">.</span><span class="nx">charCodeAt</span><span class="p">(</span><span class="nx">tokPos</span> <span class="o">+</span> <span class="mi">1</span><span class="p">)</s [...]
- <span class="k">return</span> <span class="nx">finishToken</span><span class="p">(</span><span class="nx">_string</span><span class="p">,</span> <span class="nx">out</span><span class="p">);</span>
- <span class="p">}</span> <span class="k">else</span> <span class="k">if</span> <span class="p">(</span><span class="nx">ch</span> <span class="o">===</span> <span class="nx">quote</span><span class="p">)</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="nx">ch</span> <span class="o">===</span> <span class="nx">quote</span><span class="p">)</span> <span class="p">{</span>
<span class="o">++</span><span class="nx">tokPos</span><span class="p">;</span>
<span class="k">return</span> <span class="nx">finishToken</span><span class="p">(</span><span class="nx">_string</span><span class="p">,</span> <span class="nx">out</span><span class="p">);</span>
<span class="p">}</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">ch</span> <span class="o">===</span> <span class="mi">92</span><span class="p">)</span> <span class="p">{</span> <span class="c1">// '\'</span>
- <span class="nx">ch</span> <span class="o">=</span> <span class="nx">input</span><span class="p">.</span><span class="nx">charCodeAt</span><span class="p">(</span><span class="o">++</span><span class="nx">tokPos</span><span class="p">);</span>
- <span class="kd">var</span> <span class="nx">octal</span> <span class="o">=</span> <span class="sr">/^[0-7]+/</span><span class="p">.</span><span class="nx">exec</span><span class="p">(</span><span class="nx">input</span><span class="p">.</span><span class="nx">slice</span><span class="p">(</span><span class="nx">tokPos</span><span class="p">,</span> <span class="nx">tokPos</span> <span class="o">+</span> <span class="mi">3</span><span class="p">));</span>
- <span class="k">if</span> <span class="p">(</span><span class="nx">octal</span><span class="p">)</span> <span class="nx">octal</span> <span class="o">=</span> <span class="nx">octal</span><span class="p">[</span><span class="mi">0</span><span class="p">];</span>
- <span class="k">while</span> <span class="p">(</span><span class="nx">octal</span> <span class="o">&&</span> <span class="nb">parseInt</span><span class="p">(</span><span class="nx">octal</span><span class="p">,</span> <span class="mi">8</span><span class="p">)</span> <span class="o">></span> <span class="mi">255</span><span class="p">)</span> <span class="nx">octal</span> <span class="o">=</span> <span class="nx">octal</span><span class="p">.</span><span class="nx">sl [...]
- <span class="k">if</span> <span class="p">(</span><span class="nx">octal</span> <span class="o">===</span> <span class="s2">"0"</span><span class="p">)</span> <span class="nx">octal</span> <span class="o">=</span> <span class="kc">null</span><span class="p">;</span>
+ <span class="nx">out</span> <span class="o">+=</span> <span class="nx">readEscapedChar</span><span class="p">();</span>
+ <span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
<span class="o">++</span><span class="nx">tokPos</span><span class="p">;</span>
- <span class="k">if</span> <span class="p">(</span><span class="nx">octal</span><span class="p">)</span> <span class="p">{</span>
- <span class="k">if</span> <span class="p">(</span><span class="nx">strict</span><span class="p">)</span> <span class="nx">raise</span><span class="p">(</span><span class="nx">tokPos</span> <span class="o">-</span> <span class="mi">2</span><span class="p">,</span> <span class="s2">"Octal literal in strict mode"</span><span class="p">);</span>
- <span class="nx">out</span> <span class="o">+=</span> <span class="nb">String</span><span class="p">.</span><span class="nx">fromCharCode</span><span class="p">(</span><span class="nb">parseInt</span><span class="p">(</span><span class="nx">octal</span><span class="p">,</span> <span class="mi">8</span><span class="p">));</span>
- <span class="nx">tokPos</span> <span class="o">+=</span> <span class="nx">octal</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="mi">1</span><span class="p">;</span>
- <span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
- <span class="k">switch</span> <span class="p">(</span><span class="nx">ch</span><span class="p">)</span> <span class="p">{</span>
- <span class="k">case</span> <span class="mi">110</span><span class="o">:</span> <span class="nx">out</span> <span class="o">+=</span> <span class="s2">"\n"</span><span class="p">;</span> <span class="k">break</span><span class="p">;</span> <span class="c1">// 'n' -> '\n'</span>
- <span class="k">case</span> <span class="mi">114</span><span class="o">:</span> <span class="nx">out</span> <span class="o">+=</span> <span class="s2">"\r"</span><span class="p">;</span> <span class="k">break</span><span class="p">;</span> <span class="c1">// 'r' -> '\r'</span>
- <span class="k">case</span> <span class="mi">120</span><span class="o">:</span> <span class="nx">out</span> <span class="o">+=</span> <span class="nb">String</span><span class="p">.</span><span class="nx">fromCharCode</span><span class="p">(</span><span class="nx">readHexChar</span><span class="p">(</span><span class="mi">2</span><span class="p">));</span> <span class="k">break</span><span class="p">;</span> <span class="c1">// 'x'</span>
- <span class="k">case</span> <span class="mi">117</span><span class="o">:</span> <span class="nx">out</span> <span class="o">+=</span> <span class="nx">readCodePoint</span><span class="p">();</span> <span class="k">break</span><span class="p">;</span> <span class="c1">// 'u'</span>
- <span class="k">case</span> <span class="mi">85</span><span class="o">:</span> <span class="nx">out</span> <span class="o">+=</span> <span class="nb">String</span><span class="p">.</span><span class="nx">fromCharCode</span><span class="p">(</span><span class="nx">readHexChar</span><span class="p">(</span><span class="mi">8</span><span class="p">));</span> <span class="k">break</span><span class="p">;</span> <span class="c1">// 'U'</span>
- <span class="k">case</span> <span class="mi">116</span><span class="o">:</span> <span class="nx">out</span> <span class="o">+=</span> <span class="s2">"\t"</span><span class="p">;</span> <span class="k">break</span><span class="p">;</span> <span class="c1">// 't' -> '\t'</span>
- <span class="k">case</span> <span class="mi">98</span><span class="o">:</span> <span class="nx">out</span> <span class="o">+=</span> <span class="s2">"\b"</span><span class="p">;</span> <span class="k">break</span><span class="p">;</span> <span class="c1">// 'b' -> '\b'</span>
- <span class="k">case</span> <span class="mi">118</span><span class="o">:</span> <span class="nx">out</span> <span class="o">+=</span> <span class="s2">"\u000b"</span><span class="p">;</span> <span class="k">break</span><span class="p">;</span> <span class="c1">// 'v' -> '\u000b'</span>
- <span class="k">case</span> <span class="mi">102</span><span class="o">:</span> <span class="nx">out</span> <span class="o">+=</span> <span class="s2">"\f"</span><span class="p">;</span> <span class="k">break</span><span class="p">;</span> <span class="c1">// 'f' -> '\f'</span>
- <span class="k">case</span> <span class="mi">48</span><span class="o">:</span> <span class="nx">out</span> <span class="o">+=</span> <span class="s2">"\0"</span><span class="p">;</span> <span class="k">break</span><span class="p">;</span> <span class="c1">// 0 -> '\0'</span>
- <span class="k">case</span> <span class="mi">13</span><span class="o">:</span> <span class="k">if</span> <span class="p">(</span><span class="nx">input</span><span class="p">.</span><span class="nx">charCodeAt</span><span class="p">(</span><span class="nx">tokPos</span><span class="p">)</span> <span class="o">===</span> <span class="mi">10</span><span class="p">)</span> <span class="o">++</span><span class="nx">tokPos</span><span class="p">;</span> <span class="c1">// '\r\n [...]
- <span class="k">case</span> <span class="mi">10</span><span class="o">:</span> <span class="c1">// ' \n'</span>
- <span class="k">if</span> <span class="p">(</span><span class="nx">options</span><span class="p">.</span><span class="nx">locations</span><span class="p">)</span> <span class="p">{</span> <span class="nx">tokLineStart</span> <span class="o">=</span> <span class="nx">tokPos</span><span class="p">;</span> <span class="o">++</span><span class="nx">tokCurLine</span><span class="p">;</span> <span class="p">}</span>
- <span class="k">break</span><span class="p">;</span>
- <span class="k">default</span><span class="o">:</span> <span class="nx">out</span> <span class="o">+=</span> <span class="nb">String</span><span class="p">.</span><span class="nx">fromCharCode</span><span class="p">(</span><span class="nx">ch</span><span class="p">);</span> <span class="k">break</span><span class="p">;</span>
- <span class="p">}</span>
+ <span class="k">if</span> <span class="p">(</span><span class="nx">newline</span><span class="p">.</span><span class="nx">test</span><span class="p">(</span><span class="nb">String</span><span class="p">.</span><span class="nx">fromCharCode</span><span class="p">(</span><span class="nx">ch</span><span class="p">)))</span> <span class="p">{</span>
+ <span class="nx">raise</span><span class="p">(</span><span class="nx">tokStart</span><span class="p">,</span> <span class="s2">"Unterminated string constant"</span><span class="p">);</span>
<span class="p">}</span>
+ <span class="nx">out</span> <span class="o">+=</span> <span class="nb">String</span><span class="p">.</span><span class="nx">fromCharCode</span><span class="p">(</span><span class="nx">ch</span><span class="p">);</span> <span class="c1">// '\'</span>
+ <span class="p">}</span>
+ <span class="p">}</span>
+ <span class="p">}</span>
+
+ <span class="kd">function</span> <span class="nx">readTmplString</span><span class="p">()</span> <span class="p">{</span>
+ <span class="kd">var</span> <span class="nx">out</span> <span class="o">=</span> <span class="s2">""</span><span class="p">;</span>
+ <span class="k">for</span> <span class="p">(;;)</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="nx">tokPos</span> <span class="o">>=</span> <span class="nx">inputLen</span><span class="p">)</span> <span class="nx">raise</span><span class="p">(</span><span class="nx">tokStart</span><span class="p">,</span> <span class="s2">"Unterminated string constant"</span><span class="p">);</span>
+ <span class="kd">var</span> <span class="nx">ch</span> <span class="o">=</span> <span class="nx">input</span><span class="p">.</span><span class="nx">charCodeAt</span><span class="p">(</span><span class="nx">tokPos</span><span class="p">);</span>
+ <span class="k">if</span> <span class="p">(</span><span class="nx">ch</span> <span class="o">===</span> <span class="mi">96</span> <span class="o">||</span> <span class="nx">ch</span> <span class="o">===</span> <span class="mi">36</span> <span class="o">&&</span> <span class="nx">input</span><span class="p">.</span><span class="nx">charCodeAt</span><span class="p">(</span><span class="nx">tokPos</span> <span class="o">+</span> <span class="mi">1</span><span class="p">)</spa [...]
+ <span class="k">return</span> <span class="nx">finishToken</span><span class="p">(</span><span class="nx">_string</span><span class="p">,</span> <span class="nx">out</span><span class="p">);</span>
+ <span class="k">if</span> <span class="p">(</span><span class="nx">ch</span> <span class="o">===</span> <span class="mi">92</span><span class="p">)</span> <span class="p">{</span> <span class="c1">// '\'</span>
+ <span class="nx">out</span> <span class="o">+=</span> <span class="nx">readEscapedChar</span><span class="p">();</span>
<span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
<span class="o">++</span><span class="nx">tokPos</span><span class="p">;</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">newline</span><span class="p">.</span><span class="nx">test</span><span class="p">(</span><span class="nb">String</span><span class="p">.</span><span class="nx">fromCharCode</span><span class="p">(</span><span class="nx">ch</span><span class="p">)))</span> <span class="p">{</span>
- <span class="k">if</span> <span class="p">(</span><span class="nx">inTemplate</span><span class="p">)</span> <span class="p">{</span>
- <span class="k">if</span> <span class="p">(</span><span class="nx">ch</span> <span class="o">===</span> <span class="mi">13</span> <span class="o">&&</span> <span class="nx">input</span><span class="p">.</span><span class="nx">charCodeAt</span><span class="p">(</span><span class="nx">tokPos</span><span class="p">)</span> <span class="o">===</span> <span class="mi">10</span><span class="p">)</span> <span class="p">{</span>
- <span class="o">++</span><span class="nx">tokPos</span><span class="p">;</span>
- <span class="nx">ch</span> <span class="o">=</span> <span class="mi">10</span><span class="p">;</span>
- <span class="p">}</span>
- <span class="k">if</span> <span class="p">(</span><span class="nx">options</span><span class="p">.</span><span class="nx">locations</span><span class="p">)</span> <span class="p">{</span>
- <span class="o">++</span><span class="nx">tokCurLine</span><span class="p">;</span>
- <span class="nx">tokLineStart</span> <span class="o">=</span> <span class="nx">tokPos</span><span class="p">;</span>
- <span class="p">}</span>
- <span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
- <span class="nx">raise</span><span class="p">(</span><span class="nx">tokStart</span><span class="p">,</span> <span class="s2">"Unterminated string constant"</span><span class="p">);</span>
+ <span class="k">if</span> <span class="p">(</span><span class="nx">ch</span> <span class="o">===</span> <span class="mi">13</span> <span class="o">&&</span> <span class="nx">input</span><span class="p">.</span><span class="nx">charCodeAt</span><span class="p">(</span><span class="nx">tokPos</span><span class="p">)</span> <span class="o">===</span> <span class="mi">10</span><span class="p">)</span> <span class="p">{</span>
+ <span class="o">++</span><span class="nx">tokPos</span><span class="p">;</span>
+ <span class="nx">ch</span> <span class="o">=</span> <span class="mi">10</span><span class="p">;</span>
+ <span class="p">}</span>
+ <span class="k">if</span> <span class="p">(</span><span class="nx">options</span><span class="p">.</span><span class="nx">locations</span><span class="p">)</span> <span class="p">{</span>
+ <span class="o">++</span><span class="nx">tokCurLine</span><span class="p">;</span>
+ <span class="nx">tokLineStart</span> <span class="o">=</span> <span class="nx">tokPos</span><span class="p">;</span>
<span class="p">}</span>
<span class="p">}</span>
<span class="nx">out</span> <span class="o">+=</span> <span class="nb">String</span><span class="p">.</span><span class="nx">fromCharCode</span><span class="p">(</span><span class="nx">ch</span><span class="p">);</span> <span class="c1">// '\'</span>
<span class="p">}</span>
<span class="p">}</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-82"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-82">¶</a> </div> <p>Used to read character escape sequences ('\x', '\u', '\U').</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span clas [...]
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-82"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-82">¶</a> </div> <p>Used to read escaped characters</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">readEscapedChar</span [...]
+ <span class="kd">var</span> <span class="nx">ch</span> <span class="o">=</span> <span class="nx">input</span><span class="p">.</span><span class="nx">charCodeAt</span><span class="p">(</span><span class="o">++</span><span class="nx">tokPos</span><span class="p">);</span>
+ <span class="kd">var</span> <span class="nx">octal</span> <span class="o">=</span> <span class="sr">/^[0-7]+/</span><span class="p">.</span><span class="nx">exec</span><span class="p">(</span><span class="nx">input</span><span class="p">.</span><span class="nx">slice</span><span class="p">(</span><span class="nx">tokPos</span><span class="p">,</span> <span class="nx">tokPos</span> <span class="o">+</span> <span class="mi">3</span><span class="p">));</span>
+ <span class="k">if</span> <span class="p">(</span><span class="nx">octal</span><span class="p">)</span> <span class="nx">octal</span> <span class="o">=</span> <span class="nx">octal</span><span class="p">[</span><span class="mi">0</span><span class="p">];</span>
+ <span class="k">while</span> <span class="p">(</span><span class="nx">octal</span> <span class="o">&&</span> <span class="nb">parseInt</span><span class="p">(</span><span class="nx">octal</span><span class="p">,</span> <span class="mi">8</span><span class="p">)</span> <span class="o">></span> <span class="mi">255</span><span class="p">)</span> <span class="nx">octal</span> <span class="o">=</span> <span class="nx">octal</span><span class="p">.</span><span class="nx">slice< [...]
+ <span class="k">if</span> <span class="p">(</span><span class="nx">octal</span> <span class="o">===</span> <span class="s2">"0"</span><span class="p">)</span> <span class="nx">octal</span> <span class="o">=</span> <span class="kc">null</span><span class="p">;</span>
+ <span class="o">++</span><span class="nx">tokPos</span><span class="p">;</span>
+ <span class="k">if</span> <span class="p">(</span><span class="nx">octal</span><span class="p">)</span> <span class="p">{</span>
+ <span class="k">if</span> <span class="p">(</span><span class="nx">strict</span><span class="p">)</span> <span class="nx">raise</span><span class="p">(</span><span class="nx">tokPos</span> <span class="o">-</span> <span class="mi">2</span><span class="p">,</span> <span class="s2">"Octal literal in strict mode"</span><span class="p">);</span>
+ <span class="nx">tokPos</span> <span class="o">+=</span> <span class="nx">octal</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="mi">1</span><span class="p">;</span>
+ <span class="k">return</span> <span class="nb">String</span><span class="p">.</span><span class="nx">fromCharCode</span><span class="p">(</span><span class="nb">parseInt</span><span class="p">(</span><span class="nx">octal</span><span class="p">,</span> <span class="mi">8</span><span class="p">));</span>
+ <span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
+ <span class="k">switch</span> <span class="p">(</span><span class="nx">ch</span><span class="p">)</span> <span class="p">{</span>
+ <span class="k">case</span> <span class="mi">110</span><span class="o">:</span> <span class="k">return</span> <span class="s2">"\n"</span><span class="p">;</span> <span class="c1">// 'n' -> '\n'</span>
+ <span class="k">case</span> <span class="mi">114</span><span class="o">:</span> <span class="k">return</span> <span class="s2">"\r"</span><span class="p">;</span> <span class="c1">// 'r' -> '\r'</span>
+ <span class="k">case</span> <span class="mi">120</span><span class="o">:</span> <span class="k">return</span> <span class="nb">String</span><span class="p">.</span><span class="nx">fromCharCode</span><span class="p">(</span><span class="nx">readHexChar</span><span class="p">(</span><span class="mi">2</span><span class="p">));</span> <span class="c1">// 'x'</span>
+ <span class="k">case</span> <span class="mi">117</span><span class="o">:</span> <span class="k">return</span> <span class="nx">readCodePoint</span><span class="p">();</span> <span class="c1">// 'u'</span>
+ <span class="k">case</span> <span class="mi">85</span><span class="o">:</span> <span class="k">return</span> <span class="nb">String</span><span class="p">.</span><span class="nx">fromCharCode</span><span class="p">(</span><span class="nx">readHexChar</span><span class="p">(</span><span class="mi">8</span><span class="p">));</span> <span class="c1">// 'U'</span>
+ <span class="k">case</span> <span class="mi">116</span><span class="o">:</span> <span class="k">return</span> <span class="s2">"\t"</span><span class="p">;</span> <span class="c1">// 't' -> '\t'</span>
+ <span class="k">case</span> <span class="mi">98</span><span class="o">:</span> <span class="k">return</span> <span class="s2">"\b"</span><span class="p">;</span> <span class="c1">// 'b' -> '\b'</span>
+ <span class="k">case</span> <span class="mi">118</span><span class="o">:</span> <span class="k">return</span> <span class="s2">"\u000b"</span><span class="p">;</span> <span class="c1">// 'v' -> '\u000b'</span>
+ <span class="k">case</span> <span class="mi">102</span><span class="o">:</span> <span class="k">return</span> <span class="s2">"\f"</span><span class="p">;</span> <span class="c1">// 'f' -> '\f'</span>
+ <span class="k">case</span> <span class="mi">48</span><span class="o">:</span> <span class="k">return</span> <span class="s2">"\0"</span><span class="p">;</span> <span class="c1">// 0 -> '\0'</span>
+ <span class="k">case</span> <span class="mi">13</span><span class="o">:</span> <span class="k">if</span> <span class="p">(</span><span class="nx">input</span><span class="p">.</span><span class="nx">charCodeAt</span><span class="p">(</span><span class="nx">tokPos</span><span class="p">)</span> <span class="o">===</span> <span class="mi">10</span><span class="p">)</span> <span class="o">++</span><span class="nx">tokPos</span><span class="p">;</span> <span class="c1">// '\r\n&# [...]
+ <span class="k">case</span> <span class="mi">10</span><span class="o">:</span> <span class="c1">// ' \n'</span>
+ <span class="k">if</span> <span class="p">(</span><span class="nx">options</span><span class="p">.</span><span class="nx">locations</span><span class="p">)</span> <span class="p">{</span> <span class="nx">tokLineStart</span> <span class="o">=</span> <span class="nx">tokPos</span><span class="p">;</span> <span class="o">++</span><span class="nx">tokCurLine</span><span class="p">;</span> <span class="p">}</span>
+ <span class="k">return</span> <span class="s2">""</span><span class="p">;</span>
+ <span class="k">default</span><span class="o">:</span> <span class="k">return</span> <span class="nb">String</span><span class="p">.</span><span class="nx">fromCharCode</span><span class="p">(</span><span class="nx">ch</span><span class="p">);</span>
+ <span class="p">}</span>
+ <span class="p">}</span>
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-83"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-83">¶</a> </div> <p>Used to read character escape sequences ('\x', '\u', '\U').</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span clas [...]
<span class="kd">var</span> <span class="nx">n</span> <span class="o">=</span> <span class="nx">readInt</span><span class="p">(</span><span class="mi">16</span><span class="p">,</span> <span class="nx">len</span><span class="p">);</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">n</span> <span class="o">===</span> <span class="kc">null</span><span class="p">)</span> <span class="nx">raise</span><span class="p">(</span><span class="nx">tokStart</span><span class="p">,</span> <span class="s2">"Bad character escape sequence"</span><span class="p">);</span>
<span class="k">return</span> <span class="nx">n</span><span class="p">;</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-83"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-83">¶</a> </div> <p>Used to signal to callers of <code>readWord1</code> whether the word
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-84"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-84">¶</a> </div> <p>Used to signal to callers of <code>readWord1</code> whether the word
contained any escape sequences. This is needed because words with
-escape sequences must not be interpreted as keywords.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">var</span> <span class="nx">containsEsc</span><span class="p">;</span></pre></div> </td> </tr> <tr id="section-84"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-84">¶</a> </div> [...]
+escape sequences must not be interpreted as keywords.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">var</span> <span class="nx">containsEsc</span><span class="p">;</span></pre></div> </td> </tr> <tr id="section-85"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-85">¶</a> </div> [...]
to whether the word contained a '\u' escape.</p>
<p>Only builds up the word character-by-character when it actually
@@ -783,14 +804,14 @@ containeds an escape, as a micro-optimization.</p> </td>
<span class="nx">first</span> <span class="o">=</span> <span class="kc">false</span><span class="p">;</span>
<span class="p">}</span>
<span class="k">return</span> <span class="nx">containsEsc</span> <span class="o">?</span> <span class="nx">word</span> <span class="o">:</span> <span class="nx">input</span><span class="p">.</span><span class="nx">slice</span><span class="p">(</span><span class="nx">start</span><span class="p">,</span> <span class="nx">tokPos</span><span class="p">);</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-85"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-85">¶</a> </div> <p>Read an identifier or keyword token. Will check for reserved
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-86"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-86">¶</a> </div> <p>Read an identifier or keyword token. Will check for reserved
words when necessary.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">readWord</span><span class="p">()</span> <span class="p">{</span>
<span class="kd">var</span> <span class="nx">word</span> <span class="o">=</span> <span class="nx">readWord1</span><span class="p">();</span>
<span class="kd">var</span> <span class="nx">type</span> <span class="o">=</span> <span class="nx">_name</span><span class="p">;</span>
<span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">containsEsc</span> <span class="o">&&</span> <span class="nx">isKeyword</span><span class="p">(</span><span class="nx">word</span><span class="p">))</span>
<span class="nx">type</span> <span class="o">=</span> <span class="nx">keywordTypes</span><span class="p">[</span><span class="nx">word</span><span class="p">];</span>
<span class="k">return</span> <span class="nx">finishToken</span><span class="p">(</span><span class="nx">type</span><span class="p">,</span> <span class="nx">word</span><span class="p">);</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-86"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-86">¶</a> </div> <h2>Parser</h2> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-87" [...]
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-87"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-87">¶</a> </div> <h2>Parser</h2> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-88" [...]
syntactic elements, and recursively calling those, each function
advancing the input stream and returning an AST node. Precedence
of constructs (for example, the fact that <code>!x[1]</code> means <code>!(x[1])</code>
@@ -804,12 +825,12 @@ way, it'll receive the node for <code>x[1]</code> already parsed, and wraps
operator precedence, because it is much more compact than using
the technique outlined above, which uses different, nesting
functions to specify precedence, for all of the ten binary
-precedence levels that JavaScript defines.</p> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-88"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-88">¶</a> </div> <h3>Parser utilities</h3> </td> <td class="code"> <di [...]
+precedence levels that JavaScript defines.</p> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-89"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-89">¶</a> </div> <h3>Parser utilities</h3> </td> <td class="code"> <di [...]
<span class="nx">lastStart</span> <span class="o">=</span> <span class="nx">tokStart</span><span class="p">;</span>
<span class="nx">lastEnd</span> <span class="o">=</span> <span class="nx">tokEnd</span><span class="p">;</span>
<span class="nx">lastEndLoc</span> <span class="o">=</span> <span class="nx">tokEndLoc</span><span class="p">;</span>
<span class="nx">readToken</span><span class="p">();</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-90"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-90">¶</a> </div> <p>Enter strict mode. Re-reads the next token to please pedantic
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-91"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-91">¶</a> </div> <p>Enter strict mode. Re-reads the next token to please pedantic
tests ("use strict"; 010; -- should fail).</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">setStrict</span><span class="p">(</span><span class="nx">strct</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">strict</span> <span class="o">=</span> <span class="nx">strct</span><span class="p">;</span>
<span class="nx">tokPos</span> <span class="o">=</span> <span class="nx">tokStart</span><span class="p">;</span>
@@ -821,7 +842,7 @@ tests ("use strict"; 010; -- should fail).</p> </td> <td
<span class="p">}</span>
<span class="nx">skipSpace</span><span class="p">();</span>
<span class="nx">readToken</span><span class="p">();</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-91"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-91">¶</a> </div> <p>Start an AST node, attaching a start offset.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">Node</sp [...]
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-92"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-92">¶</a> </div> <p>Start an AST node, attaching a start offset.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">Node</sp [...]
<span class="k">this</span><span class="p">.</span><span class="nx">type</span> <span class="o">=</span> <span class="kc">null</span><span class="p">;</span>
<span class="k">this</span><span class="p">.</span><span class="nx">start</span> <span class="o">=</span> <span class="nx">tokStart</span><span class="p">;</span>
<span class="k">this</span><span class="p">.</span><span class="nx">end</span> <span class="o">=</span> <span class="kc">null</span><span class="p">;</span>
@@ -844,7 +865,7 @@ tests ("use strict"; 010; -- should fail).</p> </td> <td
<span class="k">if</span> <span class="p">(</span><span class="nx">options</span><span class="p">.</span><span class="nx">ranges</span><span class="p">)</span>
<span class="nx">node</span><span class="p">.</span><span class="nx">range</span> <span class="o">=</span> <span class="p">[</span><span class="nx">tokStart</span><span class="p">,</span> <span class="mi">0</span><span class="p">];</span>
<span class="k">return</span> <span class="nx">node</span><span class="p">;</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-92"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-92">¶</a> </div> <p>Start a node whose start offset information should be based on
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-93"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-93">¶</a> </div> <p>Start a node whose start offset information should be based on
the start of another node. For example, a binary operator node is
only started after its left-hand side has already been parsed.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">startNodeFrom</span><span class="p">(</span><span class="nx">other</span><span class="p">)</span> <span class="p">{</span>
<span class="kd">var</span> <span class="nx">node</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">Node</span><span class="p">();</span>
@@ -857,7 +878,7 @@ only started after its left-hand side has already been parsed.</p> <
<span class="nx">node</span><span class="p">.</span><span class="nx">range</span> <span class="o">=</span> <span class="p">[</span><span class="nx">other</span><span class="p">.</span><span class="nx">range</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="mi">0</span><span class="p">];</span>
<span class="k">return</span> <span class="nx">node</span><span class="p">;</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-93"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-93">¶</a> </div> <p>Finish an AST node, adding <code>type</code> and <code>end</code> properties.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function [...]
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-94"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-94">¶</a> </div> <p>Finish an AST node, adding <code>type</code> and <code>end</code> properties.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function [...]
<span class="nx">node</span><span class="p">.</span><span class="nx">type</span> <span class="o">=</span> <span class="nx">type</span><span class="p">;</span>
<span class="nx">node</span><span class="p">.</span><span class="nx">end</span> <span class="o">=</span> <span class="nx">lastEnd</span><span class="p">;</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">options</span><span class="p">.</span><span class="nx">locations</span><span class="p">)</span>
@@ -865,10 +886,10 @@ only started after its left-hand side has already been parsed.</p> <
<span class="k">if</span> <span class="p">(</span><span class="nx">options</span><span class="p">.</span><span class="nx">ranges</span><span class="p">)</span>
<span class="nx">node</span><span class="p">.</span><span class="nx">range</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">=</span> <span class="nx">lastEnd</span><span class="p">;</span>
<span class="k">return</span> <span class="nx">node</span><span class="p">;</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-94"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-94">¶</a> </div> <p>Test whether a statement node is the string literal <code>"use strict"</code>.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">functio [...]
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-95"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-95">¶</a> </div> <p>Test whether a statement node is the string literal <code>"use strict"</code>.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">functio [...]
<span class="k">return</span> <span class="nx">options</span><span class="p">.</span><span class="nx">ecmaVersion</span> <span class="o">>=</span> <span class="mi">5</span> <span class="o">&&</span> <span class="nx">stmt</span><span class="p">.</span><span class="nx">type</span> <span class="o">===</span> <span class="s2">"ExpressionStatement"</span> <span class="o">&&</span>
<span class="nx">stmt</span><span class="p">.</span><span class="nx">expression</span><span class="p">.</span><span class="nx">type</span> <span class="o">===</span> <span class="s2">"Literal"</span> <span class="o">&&</span> <span class="nx">stmt</span><span class="p">.</span><span class="nx">expression</span><span class="p">.</span><span class="nx">value</span> <span class="o">===</span> <span class="s2">"use strict"</span><span class="p">;</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-95"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-95">¶</a> </div> <p>Predicate that tests whether the next token is of the given
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-96"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-96">¶</a> </div> <p>Predicate that tests whether the next token is of the given
type, and if yes, consumes it as a side effect.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">eat</span><span class="p">(</span><span class="nx">type</span><span class="p">)</span> <span class="p">{</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">tokType</span> <span class="o">===</span> <span class="nx">type</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">next</span><span class="p">();</span>
@@ -876,20 +897,20 @@ type, and if yes, consumes it as a side effect.</p> </td>
<span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
<span class="k">return</span> <span class="kc">false</span><span class="p">;</span>
<span class="p">}</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-96"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-96">¶</a> </div> <p>Test whether a semicolon can be inserted at the current position.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <spa [...]
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-97"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-97">¶</a> </div> <p>Test whether a semicolon can be inserted at the current position.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <spa [...]
<span class="k">return</span> <span class="o">!</span><span class="nx">options</span><span class="p">.</span><span class="nx">strictSemicolons</span> <span class="o">&&</span>
<span class="p">(</span><span class="nx">tokType</span> <span class="o">===</span> <span class="nx">_eof</span> <span class="o">||</span> <span class="nx">tokType</span> <span class="o">===</span> <span class="nx">_braceR</span> <span class="o">||</span> <span class="nx">newline</span><span class="p">.</span><span class="nx">test</span><span class="p">(</span><span class="nx">input</span><span class="p">.</span><span class="nx">slice</span><span class="p">(</span><span class="nx">l [...]
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-97"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-97">¶</a> </div> <p>Consume a semicolon, or, failing that, see if we are allowed to
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-98"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-98">¶</a> </div> <p>Consume a semicolon, or, failing that, see if we are allowed to
pretend that there is a semicolon at this position.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">semicolon</span><span class="p">()</span> <span class="p">{</span>
<span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">eat</span><span class="p">(</span><span class="nx">_semi</span><span class="p">)</span> <span class="o">&&</span> <span class="o">!</span><span class="nx">canInsertSemicolon</span><span class="p">())</span> <span class="nx">unexpected</span><span class="p">();</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-98"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-98">¶</a> </div> <p>Expect a token of a given type. If found, consume it, otherwise,
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-99"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-99">¶</a> </div> <p>Expect a token of a given type. If found, consume it, otherwise,
raise an unexpected token error.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">expect</span><span class="p">(</span><span class="nx">type</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">eat</span><span class="p">(</span><span class="nx">type</span><span class="p">)</span> <span class="o">||</span> <span class="nx">unexpected</span><span class="p">();</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-99"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-99">¶</a> </div> <p>Raise an unexpected token error.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">unexpected</span><sp [...]
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-100"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-100">¶</a> </div> <p>Raise an unexpected token error.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">unexpected</span>< [...]
<span class="nx">raise</span><span class="p">(</span><span class="nx">pos</span> <span class="o">!=</span> <span class="kc">null</span> <span class="o">?</span> <span class="nx">pos</span> <span class="o">:</span> <span class="nx">tokStart</span><span class="p">,</span> <span class="s2">"Unexpected token"</span><span class="p">);</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-100"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-100">¶</a> </div> <p>Checks if hash object has a property.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">has</span><sp [...]
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-101"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-101">¶</a> </div> <p>Checks if hash object has a property.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">has</span><sp [...]
<span class="k">return</span> <span class="nb">Object</span><span class="p">.</span><span class="nx">prototype</span><span class="p">.</span><span class="nx">hasOwnProperty</span><span class="p">.</span><span class="nx">call</span><span class="p">(</span><span class="nx">obj</span><span class="p">,</span> <span class="nx">propName</span><span class="p">);</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-101"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-101">¶</a> </div> <p>Convert existing expression atom to assignable pattern
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-102"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-102">¶</a> </div> <p>Convert existing expression atom to assignable pattern
if possible.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">toAssignable</span><span class="p">(</span><span class="nx">node</span><span class="p">,</span> <span class="nx">allowSpread</span><span class="p">,</span> <span class="nx">checkType</span><span class="p">)</span> <span class="p">{</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">options</span><span class="p">.</span><span class="nx">ecmaVersion</span> <span class="o">>=</span> <span class="mi">6</span> <span class="o">&&</span> <span class="nx">node</span><span class="p">)</span> <span class="p">{</span>
<span class="k">switch</span> <span class="p">(</span><span class="nx">node</span><span class="p">.</span><span class="nx">type</span><span class="p">)</span> <span class="p">{</span>
@@ -927,10 +948,10 @@ if possible.</p> </td> <td class="code"> <
<span class="p">}</span>
<span class="p">}</span>
<span class="k">return</span> <span class="nx">node</span><span class="p">;</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-102"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-102">¶</a> </div> <p>Checks if node can be assignable spread argument.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">c [...]
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-103"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-103">¶</a> </div> <p>Checks if node can be assignable spread argument.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">c [...]
<span class="k">if</span> <span class="p">(</span><span class="nx">node</span><span class="p">.</span><span class="nx">type</span> <span class="o">!==</span> <span class="s2">"Identifier"</span> <span class="o">&&</span> <span class="nx">node</span><span class="p">.</span><span class="nx">type</span> <span class="o">!==</span> <span class="s2">"ArrayPattern"</span><span class="p">)</span>
<span class="nx">unexpected</span><span class="p">(</span><span class="nx">node</span><span class="p">.</span><span class="nx">start</span><span class="p">);</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-103"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-103">¶</a> </div> <p>Verify that argument names are not repeated, and it does not
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-104"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-104">¶</a> </div> <p>Verify that argument names are not repeated, and it does not
try to bind the words <code>eval</code> or <code>arguments</code>.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">checkFunctionParam</span><span class="p">(</span><span class="nx">param</span><span class="p">,</span> <span class="nx">nameHash</span><span class="p">)</span> <span class="p">{</span>
<span class="k">switch</span> <span class="p">(</span><span class="nx">param</span><span class="p">.</span><span class="nx">type</span><span class="p">)</span> <span class="p">{</span>
<span class="k">case</span> <span class="s2">"Identifier"</span><span class="o">:</span>
@@ -951,7 +972,7 @@ try to bind the words <code>eval</code> or <code>arguments</code>.</p>
<span class="nx">checkFunctionParam</span><span class="p">(</span><span class="nx">param</span><span class="p">.</span><span class="nx">elements</span><span class="p">[</span><span class="nx">i</span><span class="p">],</span> <span class="nx">nameHash</span><span class="p">);</span>
<span class="k">break</span><span class="p">;</span>
<span class="p">}</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-104"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-104">¶</a> </div> <p>Check if property name clashes with already added.
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-105"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-105">¶</a> </div> <p>Check if property name clashes with already added.
Object/class getters and setters are not allowed to clash —
either with each other or with an init property — and in
strict mode, init properties are also not allowed to be repeated.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">checkPropClash</span><span class="p">(</span><span class="nx">prop</span><span class="p">,</span> <span class="nx">propHash</span><span class="p">)</span> <span class="p">{</span>
@@ -976,7 +997,7 @@ strict mode, init properties are also not allowed to be repeated.</p>
<span class="p">};</span>
<span class="p">}</span>
<span class="nx">other</span><span class="p">[</span><span class="nx">kind</span><span class="p">]</span> <span class="o">=</span> <span class="kc">true</span><span class="p">;</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-105"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-105">¶</a> </div> <p>Verify that a node is an lval — something that can be assigned
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-106"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-106">¶</a> </div> <p>Verify that a node is an lval — something that can be assigned
to.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">checkLVal</span><span class="p">(</span><span class="nx">expr</span><span class="p">,</span> <span class="nx">isBinding</span><span class="p">)</span> <span class="p">{</span>
<span class="k">switch</span> <span class="p">(</span><span class="nx">expr</span><span class="p">.</span><span class="nx">type</span><span class="p">)</span> <span class="p">{</span>
<span class="k">case</span> <span class="s2">"Identifier"</span><span class="o">:</span>
@@ -1008,7 +1029,7 @@ to.</p> </td> <td class="code"> <div class
<span class="k">default</span><span class="o">:</span>
<span class="nx">raise</span><span class="p">(</span><span class="nx">expr</span><span class="p">.</span><span class="nx">start</span><span class="p">,</span> <span class="s2">"Assigning to rvalue"</span><span class="p">);</span>
<span class="p">}</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-106"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-106">¶</a> </div> <h3>Statement parsing</h3> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id [...]
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-107"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-107">¶</a> </div> <h3>Statement parsing</h3> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id [...]
statements, and wraps them in a Program node. Optionally takes a
<code>program</code> argument. If present, the statements will be appended
to its body instead of creating a new node.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">parseTopLevel</span><span class="p">(</span><span class="nx">program</span><span class="p">)</span> <span class="p">{</span>
@@ -1029,7 +1050,7 @@ to its body instead of creating a new node.</p> </td> <t
<span class="k">return</span> <span class="nx">finishNode</span><span class="p">(</span><span class="nx">node</span><span class="p">,</span> <span class="s2">"Program"</span><span class="p">);</span>
<span class="p">}</span>
- <span class="kd">var</span> <span class="nx">loopLabel</span> <span class="o">=</span> <span class="p">{</span><span class="nx">kind</span><span class="o">:</span> <span class="s2">"loop"</span><span class="p">},</span> <span class="nx">switchLabel</span> <span class="o">=</span> <span class="p">{</span><span class="nx">kind</span><span class="o">:</span> <span class="s2">"switch"</span><span class="p">};</span></pre></div> </td> </tr> [...]
+ <span class="kd">var</span> <span class="nx">loopLabel</span> <span class="o">=</span> <span class="p">{</span><span class="nx">kind</span><span class="o">:</span> <span class="s2">"loop"</span><span class="p">},</span> <span class="nx">switchLabel</span> <span class="o">=</span> <span class="p">{</span><span class="nx">kind</span><span class="o">:</span> <span class="s2">"switch"</span><span class="p">};</span></pre></div> </td> </tr> [...]
<p>If expecting a statement and finding a slash operator, parse a
regular expression literal. This is to handle cases like
@@ -1038,7 +1059,7 @@ does not help.</p> </td> <td class="code">
<span class="k">if</span> <span class="p">(</span><span class="nx">tokType</span> <span class="o">===</span> <span class="nx">_slash</span> <span class="o">||</span> <span class="nx">tokType</span> <span class="o">===</span> <span class="nx">_assign</span> <span class="o">&&</span> <span class="nx">tokVal</span> <span class="o">==</span> <span class="s2">"/="</span><span class="p">)</span>
<span class="nx">readToken</span><span class="p">(</span><span class="kc">true</span><span class="p">);</span>
- <span class="kd">var</span> <span class="nx">starttype</span> <span class="o">=</span> <span class="nx">tokType</span><span class="p">,</span> <span class="nx">node</span> <span class="o">=</span> <span class="nx">startNode</span><span class="p">();</span></pre></div> </td> </tr> <tr id="section-109"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-109">¶</a> [...]
+ <span class="kd">var</span> <span class="nx">starttype</span> <span class="o">=</span> <span class="nx">tokType</span><span class="p">,</span> <span class="nx">node</span> <span class="o">=</span> <span class="nx">startNode</span><span class="p">();</span></pre></div> </td> </tr> <tr id="section-110"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-110">¶</a> [...]
start with. Many are trivial to parse, some require a bit of
complexity.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="k">switch</span> <span class="p">(</span><span class="nx">starttype</span><span class="p">)</span> <span class="p">{</span>
<span class="k">case</span> <span class="nx">_break</span><span class="o">:</span> <span class="k">case</span> <span class="nx">_continue</span><span class="o">:</span> <span class="k">return</span> <span class="nx">parseBreakContinueStatement</span><span class="p">(</span><span class="nx">node</span><span class="p">,</span> <span class="nx">starttype</span><span class="p">.</span><span class="nx">keyword</span><span class="p">);</span>
@@ -1058,7 +1079,7 @@ complexity.</p> </td> <td class="code"> <d
<span class="k">case</span> <span class="nx">_braceL</span><span class="o">:</span> <span class="k">return</span> <span class="nx">parseBlock</span><span class="p">();</span> <span class="c1">// no point creating a function for this</span>
<span class="k">case</span> <span class="nx">_semi</span><span class="o">:</span> <span class="k">return</span> <span class="nx">parseEmptyStatement</span><span class="p">(</span><span class="nx">node</span><span class="p">);</span>
<span class="k">case</span> <span class="nx">_export</span><span class="o">:</span> <span class="k">return</span> <span class="nx">parseExport</span><span class="p">(</span><span class="nx">node</span><span class="p">);</span>
- <span class="k">case</span> <span class="nx">_import</span><span class="o">:</span> <span class="k">return</span> <span class="nx">parseImport</span><span class="p">(</span><span class="nx">node</span><span class="p">);</span></pre></div> </td> </tr> <tr id="section-110"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-110">¶</a> </div> [...]
+ <span class="k">case</span> <span class="nx">_import</span><span class="o">:</span> <span class="k">return</span> <span class="nx">parseImport</span><span class="p">(</span><span class="nx">node</span><span class="p">);</span></pre></div> </td> </tr> <tr id="section-111"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-111">¶</a> </div> [...]
brace, it's an ExpressionStatement or LabeledStatement. We
simply start parsing an expression, and afterwards, if the
next token is a colon and the expression was a simple
@@ -1078,7 +1099,7 @@ Identifier node, we switch to interpreting it as a label.</p> </td>
<span class="k">else</span> <span class="p">{</span>
<span class="nx">node</span><span class="p">.</span><span class="nx">label</span> <span class="o">=</span> <span class="nx">parseIdent</span><span class="p">();</span>
<span class="nx">semicolon</span><span class="p">();</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-111"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-111">¶</a> </div> <p>Verify that there is an actual destination to break or
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-112"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-112">¶</a> </div> <p>Verify that there is an actual destination to break or
continue to.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="k">for</span> <span class="p">(</span><span class="kd">var</span> <span class="nx">i</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span> <span class="nx">i</span> <span class="o"><</span> <span class="nx">labels</span><span class="p">.</span><span class="nx">length</span><span class="p">;</span> <span class="o">++</span><span class=" [...]
<span class="kd">var</span> <span class="nx">lab</span> <span class="o">=</span> <span class="nx">labels</span><span class="p">[</span><span class="nx">i</span><span class="p">];</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">node</span><span class="p">.</span><span class="nx">label</span> <span class="o">==</span> <span class="kc">null</span> <span class="o">||</span> <span class="nx">lab</span><span class="p">.</span><span class="nx">name</span> <span class="o">===</span> <span class="nx">node</span><span class="p">.</span><span class="nx">label</span><span class="p">.</span><span class="nx">name</span><span class="p">)</span> <span cl [...]
@@ -1106,7 +1127,7 @@ continue to.</p> </td> <td class="code"> <
<span class="nx">semicolon</span><span class="p">();</span>
<span class="k">return</span> <span class="nx">finishNode</span><span class="p">(</span><span class="nx">node</span><span class="p">,</span> <span class="s2">"DoWhileStatement"</span><span class="p">);</span>
<span class="p">}</span>
- </pre></div> </td> </tr> <tr id="section-112"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-112">¶</a> </div> <p>Disambiguating between a <code>for</code> and a <code>for</code>/<code>in</code> or <code>for</code>/<code>of</code>
+ </pre></div> </td> </tr> <tr id="section-113"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-113">¶</a> </div> <p>Disambiguating between a <code>for</code> and a <code>for</code>/<code>in</code> or <code>for</code>/<code>of</code>
loop is non-trivial. Basically, we have to parse the init <code>var</code>
statement or expression, disallowing the <code>in</code> operator (see
the second parameter to <code>parseExpression</code>), and then check
@@ -1152,7 +1173,7 @@ is a regular <code>for</code> loop.</p> </td> <td class=
<span class="kd">function</span> <span class="nx">parseReturnStatement</span><span class="p">(</span><span class="nx">node</span><span class="p">)</span> <span class="p">{</span>
<span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">inFunction</span> <span class="o">&&</span> <span class="o">!</span><span class="nx">options</span><span class="p">.</span><span class="nx">allowReturnOutsideFunction</span><span class="p">)</span>
<span class="nx">raise</span><span class="p">(</span><span class="nx">tokStart</span><span class="p">,</span> <span class="s2">"'return' outside of function"</span><span class="p">);</span>
- <span class="nx">next</span><span class="p">();</span></pre></div> </td> </tr> <tr id="section-113"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-113">¶</a> </div> <p>In <code>return</code> (and <code>break</code>/<code>continue</code>), the keywords with
+ <span class="nx">next</span><span class="p">();</span></pre></div> </td> </tr> <tr id="section-114"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-114">¶</a> </div> <p>In <code>return</code> (and <code>break</code>/<code>continue</code>), the keywords with
optional arguments, we eagerly look for a semicolon or the
possibility to insert one.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="k">if</span> <span class="p">(</span><span class="nx">eat</span><span class="p">(</span><span class="nx">_semi</span><span class="p">)</span> <span class="o">||</span> <span class="nx">canInsertSemicolon</span><span class="p">())</span> <span class="nx">node</span><span class="p">.</span><span class="nx">argument</span> <span class="o">=</span> <span c [...]
<span class="k">else</span> <span class="p">{</span> <span class="nx">node</span><span class="p">.</span><span class="nx">argument</span> <span class="o">=</span> <span class="nx">parseExpression</span><span class="p">();</span> <span class="nx">semicolon</span><span class="p">();</span> <span class="p">}</span>
@@ -1164,7 +1185,7 @@ possibility to insert one.</p> </td> <td class="code">
<span class="nx">node</span><span class="p">.</span><span class="nx">discriminant</span> <span class="o">=</span> <span class="nx">parseParenExpression</span><span class="p">();</span>
<span class="nx">node</span><span class="p">.</span><span class="nx">cases</span> <span class="o">=</span> <span class="p">[];</span>
<span class="nx">expect</span><span class="p">(</span><span class="nx">_braceL</span><span class="p">);</span>
- <span class="nx">labels</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="nx">switchLabel</span><span class="p">);</span></pre></div> </td> </tr> <tr id="section-114"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-114">¶</a> </div> <p>Statements under must be grouped (by label) in SwitchCase
+ <span class="nx">labels</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="nx">switchLabel</span><span class="p">);</span></pre></div> </td> </tr> <tr id="section-115"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-115">¶</a> </div> <p>Statements under must be grouped (by label) in SwitchCase
nodes. <code>cur</code> is used to keep the node that we are currently
adding statements to.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="k">for</span> <span class="p">(</span><span class="kd">var</span> <span class="nx">cur</span><span class="p">,</span> <span class="nx">sawDefault</span><span class="p">;</span> <span class="nx">tokType</span> <span class="o">!=</span> <span class="nx">_braceR</span><span class="p">;)</span> <span class="p">{</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">tokType</span> <span class="o">===</span> <span class="nx">_case</span> <span class="o">||</span> <span class="nx">tokType</span> <span class="o">===</span> <span class="nx">_default</span><span class="p">)</span> <span class="p">{</span>
@@ -1266,13 +1287,13 @@ adding statements to.</p> </td> <td class="code">
<span class="nx">node</span><span class="p">.</span><span class="nx">expression</span> <span class="o">=</span> <span class="nx">expr</span><span class="p">;</span>
<span class="nx">semicolon</span><span class="p">();</span>
<span class="k">return</span> <span class="nx">finishNode</span><span class="p">(</span><span class="nx">node</span><span class="p">,</span> <span class="s2">"ExpressionStatement"</span><span class="p">);</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-115"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-115">¶</a> </div> <p>Used for constructs like <code>switch</code> and <code>if</code> that insist on
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-116"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-116">¶</a> </div> <p>Used for constructs like <code>switch</code> and <code>if</code> that insist on
parentheses around their expression.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">parseParenExpression</span><span class="p">()</span> <span class="p">{</span>
<span class="nx">expect</span><span class="p">(</span><span class="nx">_parenL</span><span class="p">);</span>
<span class="kd">var</span> <span class="nx">val</span> <span class="o">=</span> <span class="nx">parseExpression</span><span class="p">();</span>
<span class="nx">expect</span><span class="p">(</span><span class="nx">_parenR</span><span class="p">);</span>
<span class="k">return</span> <span class="nx">val</span><span class="p">;</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-116"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-116">¶</a> </div> <p>Parse a semicolon-enclosed block of statements, handling <code>"use
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-117"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-117">¶</a> </div> <p>Parse a semicolon-enclosed block of statements, handling <code>"use
strict"</code> declarations when <code>allowStrict</code> is true (used for
function bodies).</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">parseBlock</span><span class="p">(</span><span class="nx">allowStrict</span><span class="p">)</span> <span class="p">{</span>
<span class="kd">var</span> <span class="nx">node</span> <span class="o">=</span> <span class="nx">startNode</span><span class="p">(),</span> <span class="nx">first</span> <span class="o">=</span> <span class="kc">true</span><span class="p">,</span> <span class="nx">strict</span> <span class="o">=</span> <span class="kc">false</span><span class="p">,</span> <span class="nx">oldStrict</span><span class="p">;</span>
@@ -1289,7 +1310,7 @@ function bodies).</p> </td> <td class="code">
<span class="p">}</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">strict</span> <span class="o">&&</span> <span class="o">!</span><span class="nx">oldStrict</span><span class="p">)</span> <span class="nx">setStrict</span><span class="p">(</span><span class="kc">false</span><span class="p">);</span>
<span class="k">return</span> <span class="nx">finishNode</span><span class="p">(</span><span class="nx">node</span><span class="p">,</span> <span class="s2">"BlockStatement"</span><span class="p">);</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-117"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-117">¶</a> </div> <p>Parse a regular <code>for</code> loop. The disambiguation code in
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-118"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-118">¶</a> </div> <p>Parse a regular <code>for</code> loop. The disambiguation code in
<code>parseStatement</code> will already have parsed the init statement or
expression.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">parseFor</span><span class="p">(</span><span class="nx">node</span><span class="p">,</span> <span class="nx">init</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">node</span><span class="p">.</span><span class="nx">init</span> <span class="o">=</span> <span class="nx">init</span><span class="p">;</span>
@@ -1301,7 +1322,7 @@ expression.</p> </td> <td class="code"> <d
<span class="nx">node</span><span class="p">.</span><span class="nx">body</span> <span class="o">=</span> <span class="nx">parseStatement</span><span class="p">();</span>
<span class="nx">labels</span><span class="p">.</span><span class="nx">pop</span><span class="p">();</span>
<span class="k">return</span> <span class="nx">finishNode</span><span class="p">(</span><span class="nx">node</span><span class="p">,</span> <span class="s2">"ForStatement"</span><span class="p">);</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-118"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-118">¶</a> </div> <p>Parse a <code>for</code>/<code>in</code> and <code>for</code>/<code>of</code> loop, which are almost
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-119"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-119">¶</a> </div> <p>Parse a <code>for</code>/<code>in</code> and <code>for</code>/<code>of</code> loop, which are almost
same from parser's perspective.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">parseForIn</span><span class="p">(</span><span class="nx">node</span><span class="p">,</span> <span class="nx">init</span><span class="p">)</span> <span class="p">{</span>
<span class="kd">var</span> <span class="nx">type</span> <span class="o">=</span> <span class="nx">tokType</span> <span class="o">===</span> <span class="nx">_in</span> <span class="o">?</span> <span class="s2">"ForInStatement"</span> <span class="o">:</span> <span class="s2">"ForOfStatement"</span><span class="p">;</span>
<span class="nx">next</span><span class="p">();</span>
@@ -1311,7 +1332,7 @@ same from parser's perspective.</p> </td> <td class="cod
<span class="nx">node</span><span class="p">.</span><span class="nx">body</span> <span class="o">=</span> <span class="nx">parseStatement</span><span class="p">();</span>
<span class="nx">labels</span><span class="p">.</span><span class="nx">pop</span><span class="p">();</span>
<span class="k">return</span> <span class="nx">finishNode</span><span class="p">(</span><span class="nx">node</span><span class="p">,</span> <span class="nx">type</span><span class="p">);</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-119"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-119">¶</a> </div> <p>Parse a list of variable declarations.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">parseVar</sp [...]
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-120"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-120">¶</a> </div> <p>Parse a list of variable declarations.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">parseVar</sp [...]
<span class="nx">node</span><span class="p">.</span><span class="nx">declarations</span> <span class="o">=</span> <span class="p">[];</span>
<span class="nx">node</span><span class="p">.</span><span class="nx">kind</span> <span class="o">=</span> <span class="nx">kind</span><span class="p">;</span>
<span class="k">for</span> <span class="p">(;;)</span> <span class="p">{</span>
@@ -1323,11 +1344,11 @@ same from parser's perspective.</p> </td> <td class="cod
<span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">eat</span><span class="p">(</span><span class="nx">_comma</span><span class="p">))</span> <span class="k">break</span><span class="p">;</span>
<span class="p">}</span>
<span class="k">return</span> <span class="nx">node</span><span class="p">;</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-120"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-120">¶</a> </div> <h3>Expression parsing</h3> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr i [...]
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-121"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-121">¶</a> </div> <h3>Expression parsing</h3> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr i [...]
'atomic', nondivisible expression types at the bottom. Most of
the functions will simply let the function(s) below them parse,
and, <em>if</em> the syntactic construct they handle is present, wrap
-the AST node that the inner parser gave them in another node.</p> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-122"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-122">¶</a> </div> <p>Parse a full expression. The arguments are used to forbid comma
+the AST node that the inner parser gave them in another node.</p> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-123"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-123">¶</a> </div> <p>Parse a full expression. The arguments are used to forbid comma
sequences (in argument lists, array literals, or object literals)
or the <code>in</code> operator (in for loops initalization expressions).</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">parseExpression</span><span class="p">(</span><span class="nx">noComma</span><span class="p">,</span> <span class="nx">noIn</span><span class="p">)</span> <span class="p">{</span>
<span class="kd">var</span> <span class="nx">expr</span> <span class="o">=</span> <span class="nx">parseMaybeAssign</span><span class="p">(</span><span class="nx">noIn</span><span class="p">);</span>
@@ -1338,7 +1359,7 @@ or the <code>in</code> operator (in for loops initalization expressions).</p>
<span class="k">return</span> <span class="nx">finishNode</span><span class="p">(</span><span class="nx">node</span><span class="p">,</span> <span class="s2">"SequenceExpression"</span><span class="p">);</span>
<span class="p">}</span>
<span class="k">return</span> <span class="nx">expr</span><span class="p">;</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-123"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-123">¶</a> </div> <p>Parse an assignment expression. This includes applications of
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-124"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-124">¶</a> </div> <p>Parse an assignment expression. This includes applications of
operators like <code>+=</code>.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">parseMaybeAssign</span><span class="p">(</span><span class="nx">noIn</span><span class="p">)</span> <span class="p">{</span>
<span class="kd">var</span> <span class="nx">left</span> <span class="o">=</span> <span class="nx">parseMaybeConditional</span><span class="p">(</span><span class="nx">noIn</span><span class="p">);</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">tokType</span><span class="p">.</span><span class="nx">isAssign</span><span class="p">)</span> <span class="p">{</span>
@@ -1351,7 +1372,7 @@ operators like <code>+=</code>.</p> </td> <td class="cod
<span class="k">return</span> <span class="nx">finishNode</span><span class="p">(</span><span class="nx">node</span><span class="p">,</span> <span class="s2">"AssignmentExpression"</span><span class="p">);</span>
<span class="p">}</span>
<span class="k">return</span> <span class="nx">left</span><span class="p">;</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-124"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-124">¶</a> </div> <p>Parse a ternary conditional (<code>?:</code>) operator.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class= [...]
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-125"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-125">¶</a> </div> <p>Parse a ternary conditional (<code>?:</code>) operator.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class= [...]
<span class="kd">var</span> <span class="nx">expr</span> <span class="o">=</span> <span class="nx">parseExprOps</span><span class="p">(</span><span class="nx">noIn</span><span class="p">);</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">eat</span><span class="p">(</span><span class="nx">_question</span><span class="p">))</span> <span class="p">{</span>
<span class="kd">var</span> <span class="nx">node</span> <span class="o">=</span> <span class="nx">startNodeFrom</span><span class="p">(</span><span class="nx">expr</span><span class="p">);</span>
@@ -1362,9 +1383,9 @@ operators like <code>+=</code>.</p> </td> <td class="cod
<span class="k">return</span> <span class="nx">finishNode</span><span class="p">(</span><span class="nx">node</span><span class="p">,</span> <span class="s2">"ConditionalExpression"</span><span class="p">);</span>
<span class="p">}</span>
<span class="k">return</span> <span class="nx">expr</span><span class="p">;</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-125"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-125">¶</a> </div> <p>Start the precedence parser.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">parseExprOps</span><sp [...]
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-126"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-126">¶</a> </div> <p>Start the precedence parser.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">parseExprOps</span><sp [...]
<span class="k">return</span> <span class="nx">parseExprOp</span><span class="p">(</span><span class="nx">parseMaybeUnary</span><span class="p">(),</span> <span class="o">-</span><span class="mi">1</span><span class="p">,</span> <span class="nx">noIn</span><span class="p">);</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-126"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-126">¶</a> </div> <p>Parse binary operators with the operator precedence parsing
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-127"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-127">¶</a> </div> <p>Parse binary operators with the operator precedence parsing
algorithm. <code>left</code> is the left-hand side of the operator.
<code>minPrec</code> provides context that allows the function to stop and
defer further parser to one of its callers when it encounters an
@@ -1383,7 +1404,7 @@ operator that has a lower precedence than the set it is parsing.</p>
<span class="p">}</span>
<span class="p">}</span>
<span class="k">return</span> <span class="nx">left</span><span class="p">;</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-127"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-127">¶</a> </div> <p>Parse unary operators, both prefix and postfix.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">par [...]
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-128"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-128">¶</a> </div> <p>Parse unary operators, both prefix and postfix.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">par [...]
<span class="k">if</span> <span class="p">(</span><span class="nx">tokType</span><span class="p">.</span><span class="nx">prefix</span><span class="p">)</span> <span class="p">{</span>
<span class="kd">var</span> <span class="nx">node</span> <span class="o">=</span> <span class="nx">startNode</span><span class="p">(),</span> <span class="nx">update</span> <span class="o">=</span> <span class="nx">tokType</span><span class="p">.</span><span class="nx">isUpdate</span><span class="p">;</span>
<span class="nx">node</span><span class="p">.</span><span class="nx">operator</span> <span class="o">=</span> <span class="nx">tokVal</span><span class="p">;</span>
@@ -1408,7 +1429,7 @@ operator that has a lower precedence than the set it is parsing.</p>
<span class="nx">expr</span> <span class="o">=</span> <span class="nx">finishNode</span><span class="p">(</span><span class="nx">node</span><span class="p">,</span> <span class="s2">"UpdateExpression"</span><span class="p">);</span>
<span class="p">}</span>
<span class="k">return</span> <span class="nx">expr</span><span class="p">;</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-128"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-128">¶</a> </div> <p>Parse call, dot, and <code>[]</code>-subscript expressions.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span cl [...]
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-129"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-129">¶</a> </div> <p>Parse call, dot, and <code>[]</code>-subscript expressions.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span cl [...]
<span class="k">return</span> <span class="nx">parseSubscripts</span><span class="p">(</span><span class="nx">parseExprAtom</span><span class="p">());</span>
<span class="p">}</span>
@@ -1437,7 +1458,7 @@ operator that has a lower precedence than the set it is parsing.</p>
<span class="nx">node</span><span class="p">.</span><span class="nx">quasi</span> <span class="o">=</span> <span class="nx">parseTemplate</span><span class="p">();</span>
<span class="k">return</span> <span class="nx">parseSubscripts</span><span class="p">(</span><span class="nx">finishNode</span><span class="p">(</span><span class="nx">node</span><span class="p">,</span> <span class="s2">"TaggedTemplateExpression"</span><span class="p">),</span> <span class="nx">noCalls</span><span class="p">);</span>
<span class="p">}</span> <span class="k">return</span> <span class="nx">base</span><span class="p">;</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-129"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-129">¶</a> </div> <p>Parse an atomic expression — either a single token that is an
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-130"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-130">¶</a> </div> <p>Parse an atomic expression — either a single token that is an
expression, an expression started by a keyword like <code>function</code> or
<code>new</code>, or an expression wrapped in punctuation like <code>()</code>, <code>[]</code>,
or <code>{}</code>.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">parseExprAtom</span><span class="p">()</span> <span class="p">{</span>
@@ -1473,7 +1494,7 @@ or <code>{}</code>.</p> </td> <td class="code">
<span class="k">case</span> <span class="nx">_parenL</span><span class="o">:</span>
<span class="kd">var</span> <span class="nx">tokStartLoc1</span> <span class="o">=</span> <span class="nx">tokStartLoc</span><span class="p">,</span> <span class="nx">tokStart1</span> <span class="o">=</span> <span class="nx">tokStart</span><span class="p">,</span> <span class="nx">val</span><span class="p">,</span> <span class="nx">exprList</span><span class="p">;</span>
- <span class="nx">next</span><span class="p">();</span></pre></div> </td> </tr> <tr id="section-130"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-130">¶</a> </div> <p>check whether this is generator comprehension or regular expression</p> </td> <td class="code"> <div class="highlight"><pre> [...]
+ <span class="nx">next</span><span class="p">();</span></pre></div> </td> </tr> <tr id="section-131"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-131">¶</a> </div> <p>check whether this is generator comprehension or regular expression</p> </td> <td class="code"> <div class="highlight"><pre> [...]
<span class="nx">val</span> <span class="o">=</span> <span class="nx">parseComprehension</span><span class="p">(</span><span class="nx">startNode</span><span class="p">(),</span> <span class="kc">true</span><span class="p">);</span>
<span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
<span class="kd">var</span> <span class="nx">oldParenL</span> <span class="o">=</span> <span class="o">++</span><span class="nx">metParenL</span><span class="p">;</span>
@@ -1483,9 +1504,9 @@ or <code>{}</code>.</p> </td> <td class="code">
<span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
<span class="nx">exprList</span> <span class="o">=</span> <span class="p">[];</span>
<span class="p">}</span>
- <span class="nx">expect</span><span class="p">(</span><span class="nx">_parenR</span><span class="p">);</span></pre></div> </td> </tr> <tr id="section-131"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-131">¶</a> </div> <p>if '=>' follows '(...)', convert contents to arguments</p> </td> <td class="code" [...]
+ <span class="nx">expect</span><span class="p">(</span><span class="nx">_parenR</span><span class="p">);</span></pre></div> </td> </tr> <tr id="section-132"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-132">¶</a> </div> <p>if '=>' follows '(...)', convert contents to arguments</p> </td> <td class="code" [...]
<span class="nx">val</span> <span class="o">=</span> <span class="nx">parseArrowExpression</span><span class="p">(</span><span class="nx">startNode</span><span class="p">(),</span> <span class="nx">exprList</span><span class="p">);</span>
- <span class="p">}</span> <span class="k">else</span> <span class="p">{</span></pre></div> </td> </tr> <tr id="section-132"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-132">¶</a> </div> <p>forbid '()' before everything but '=>'</p> </td> <td class="code"> <div class="highlight"><pre> [...]
+ <span class="p">}</span> <span class="k">else</span> <span class="p">{</span></pre></div> </td> </tr> <tr id="section-133"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-133">¶</a> </div> <p>forbid '()' before everything but '=>'</p> </td> <td class="code"> <div class="highlight"><pre> [...]
<span class="k">for</span> <span class="p">(</span><span class="kd">var</span> <span class="nx">i</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span> <span class="nx">i</span> <span class="o"><</span> <span class="nx">exprList</span><span class="p">.</span><span class="nx">length</span><span class="p">;</span> <span class="nx">i</span><span class="o">++</span><span class="p">)</span> <span class="p">{</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">exprList</span><span class="p">[</span><span class="nx">i</span><span class="p">].</span><span class="nx">type</span> <span class="o">===</span> <span class="s2">"SpreadElement"</span><span class="p">)</span> <span class="nx">unexpected</span><span class="p">();</span>
<span class="p">}</span>
@@ -1505,7 +1526,7 @@ or <code>{}</code>.</p> </td> <td class="code">
<span class="k">case</span> <span class="nx">_bracketL</span><span class="o">:</span>
<span class="kd">var</span> <span class="nx">node</span> <span class="o">=</span> <span class="nx">startNode</span><span class="p">();</span>
- <span class="nx">next</span><span class="p">();</span></pre></div> </td> </tr> <tr id="section-134"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-134">¶</a> </div> <p>check whether this is array comprehension or regular array</p> </td> <td class="code"> <div class="highlight"><pre> <spa [...]
+ <span class="nx">next</span><span class="p">();</span></pre></div> </td> </tr> <tr id="section-135"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-135">¶</a> </div> <p>check whether this is array comprehension or regular array</p> </td> <td class="code"> <div class="highlight"><pre> <spa [...]
<span class="k">return</span> <span class="nx">parseComprehension</span><span class="p">(</span><span class="nx">node</span><span class="p">,</span> <span class="kc">false</span><span class="p">);</span>
<span class="p">}</span>
<span class="nx">node</span><span class="p">.</span><span class="nx">elements</span> <span class="o">=</span> <span class="nx">parseExprList</span><span class="p">(</span><span class="nx">_bracketR</span><span class="p">,</span> <span class="kc">true</span><span class="p">,</span> <span class="kc">true</span><span class="p">);</span>
@@ -1534,7 +1555,7 @@ or <code>{}</code>.</p> </td> <td class="code">
<span class="k">default</span><span class="o">:</span>
<span class="nx">unexpected</span><span class="p">();</span>
<span class="p">}</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-135"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-135">¶</a> </div> <p>New's precedence is slightly tricky. It must allow its argument
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-136"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-136">¶</a> </div> <p>New's precedence is slightly tricky. It must allow its argument
to be a <code>[]</code> or dot subscript expression, but not a call — at
least, not without wrapping it in parentheses. Thus, it uses the</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">parseNew</span><span class="p">()</span> <span class="p">{</span>
<span class="kd">var</span> <span class="nx">node</span> <span class="o">=</span> <span class="nx">startNode</span><span class="p">();</span>
@@ -1543,12 +1564,12 @@ least, not without wrapping it in parentheses. Thus, it uses the</p>
<span class="k">if</span> <span class="p">(</span><span class="nx">eat</span><span class="p">(</span><span class="nx">_parenL</span><span class="p">))</span> <span class="nx">node</span><span class="p">.</span><span class="nx">arguments</span> <span class="o">=</span> <span class="nx">parseExprList</span><span class="p">(</span><span class="nx">_parenR</span><span class="p">,</span> <span class="kc">false</span><span class="p">);</span>
<span class="k">else</span> <span class="nx">node</span><span class="p">.</span><span class="nx">arguments</span> <span class="o">=</span> <span class="nx">empty</span><span class="p">;</span>
<span class="k">return</span> <span class="nx">finishNode</span><span class="p">(</span><span class="nx">node</span><span class="p">,</span> <span class="s2">"NewExpression"</span><span class="p">);</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-136"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-136">¶</a> </div> <p>Parse spread element '...expr'</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">parseSpread</span><s [...]
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-137"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-137">¶</a> </div> <p>Parse spread element '...expr'</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">parseSpread</span><s [...]
<span class="kd">var</span> <span class="nx">node</span> <span class="o">=</span> <span class="nx">startNode</span><span class="p">();</span>
<span class="nx">next</span><span class="p">();</span>
<span class="nx">node</span><span class="p">.</span><span class="nx">argument</span> <span class="o">=</span> <span class="nx">parseExpression</span><span class="p">(</span><span class="kc">true</span><span class="p">);</span>
<span class="k">return</span> <span class="nx">finishNode</span><span class="p">(</span><span class="nx">node</span><span class="p">,</span> <span class="s2">"SpreadElement"</span><span class="p">);</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-137"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-137">¶</a> </div> <p>Parse template expression.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">parseTemplate</span><spa [...]
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-138"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-138">¶</a> </div> <p>Parse template expression.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">parseTemplate</span><spa [...]
<span class="kd">var</span> <span class="nx">node</span> <span class="o">=</span> <span class="nx">startNode</span><span class="p">();</span>
<span class="nx">node</span><span class="p">.</span><span class="nx">expressions</span> <span class="o">=</span> <span class="p">[];</span>
<span class="nx">node</span><span class="p">.</span><span class="nx">quasis</span> <span class="o">=</span> <span class="p">[];</span>
@@ -1572,7 +1593,7 @@ least, not without wrapping it in parentheses. Thus, it uses the</p>
<span class="p">}</span>
<span class="nx">inTemplate</span> <span class="o">=</span> <span class="kc">false</span><span class="p">;</span>
<span class="k">return</span> <span class="nx">finishNode</span><span class="p">(</span><span class="nx">node</span><span class="p">,</span> <span class="s2">"TemplateLiteral"</span><span class="p">);</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-138"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-138">¶</a> </div> <p>Parse an object literal.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">parseObj</span><span class [...]
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-139"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-139">¶</a> </div> <p>Parse an object literal.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">parseObj</span><span class [...]
<span class="kd">var</span> <span class="nx">node</span> <span class="o">=</span> <span class="nx">startNode</span><span class="p">(),</span> <span class="nx">first</span> <span class="o">=</span> <span class="kc">true</span><span class="p">,</span> <span class="nx">propHash</span> <span class="o">=</span> <span class="p">{};</span>
<span class="nx">node</span><span class="p">.</span><span class="nx">properties</span> <span class="o">=</span> <span class="p">[];</span>
<span class="nx">next</span><span class="p">();</span>
@@ -1626,7 +1647,7 @@ least, not without wrapping it in parentheses. Thus, it uses the</p>
<span class="p">}</span>
<span class="p">}</span>
<span class="nx">prop</span><span class="p">.</span><span class="nx">key</span> <span class="o">=</span> <span class="p">(</span><span class="nx">tokType</span> <span class="o">===</span> <span class="nx">_num</span> <span class="o">||</span> <span class="nx">tokType</span> <span class="o">===</span> <span class="nx">_string</span><span class="p">)</span> <span class="o">?</span> <span class="nx">parseExprAtom</span><span class="p">()</span> <span class="o">:</span> <span class="nx"> [...]
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-139"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-139">¶</a> </div> <p>Initialize empty function node.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">initFunction</span> [...]
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-140"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-140">¶</a> </div> <p>Initialize empty function node.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">initFunction</span> [...]
<span class="nx">node</span><span class="p">.</span><span class="nx">id</span> <span class="o">=</span> <span class="kc">null</span><span class="p">;</span>
<span class="nx">node</span><span class="p">.</span><span class="nx">params</span> <span class="o">=</span> <span class="p">[];</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">options</span><span class="p">.</span><span class="nx">ecmaVersion</span> <span class="o">>=</span> <span class="mi">6</span><span class="p">)</span> <span class="p">{</span>
@@ -1634,7 +1655,7 @@ least, not without wrapping it in parentheses. Thus, it uses the</p>
<span class="nx">node</span><span class="p">.</span><span class="nx">rest</span> <span class="o">=</span> <span class="kc">null</span><span class="p">;</span>
<span class="nx">node</span><span class="p">.</span><span class="nx">generator</span> <span class="o">=</span> <span class="kc">false</span><span class="p">;</span>
<span class="p">}</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-140"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-140">¶</a> </div> <p>Parse a function declaration or literal (depending on the
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-141"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-141">¶</a> </div> <p>Parse a function declaration or literal (depending on the
<code>isStatement</code> parameter).</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">parseFunction</span><span class="p">(</span><span class="nx">node</span><span class="p">,</span> <span class="nx">isStatement</span><span class="p">,</span> <span class="nx">allowExpressionBody</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">initFunction</span><span class="p">(</span><span class="nx">node</span><span class="p">);</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">options</span><span class="p">.</span><span class="nx">ecmaVersion</span> <span class="o">>=</span> <span class="mi">6</span><span class="p">)</span> <span class="p">{</span>
@@ -1646,7 +1667,7 @@ least, not without wrapping it in parentheses. Thus, it uses the</p>
<span class="nx">parseFunctionParams</span><span class="p">(</span><span class="nx">node</span><span class="p">);</span>
<span class="nx">parseFunctionBody</span><span class="p">(</span><span class="nx">node</span><span class="p">,</span> <span class="nx">allowExpressionBody</span><span class="p">);</span>
<span class="k">return</span> <span class="nx">finishNode</span><span class="p">(</span><span class="nx">node</span><span class="p">,</span> <span class="nx">isStatement</span> <span class="o">?</span> <span class="s2">"FunctionDeclaration"</span> <span class="o">:</span> <span class="s2">"FunctionExpression"</span><span class="p">);</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-141"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-141">¶</a> </div> <p>Parse object or class method.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">parseMethod</span><sp [...]
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-142"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-142">¶</a> </div> <p>Parse object or class method.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">parseMethod</span><sp [...]
<span class="kd">var</span> <span class="nx">node</span> <span class="o">=</span> <span class="nx">startNode</span><span class="p">();</span>
<span class="nx">initFunction</span><span class="p">(</span><span class="nx">node</span><span class="p">);</span>
<span class="nx">parseFunctionParams</span><span class="p">(</span><span class="nx">node</span><span class="p">);</span>
@@ -1659,7 +1680,7 @@ least, not without wrapping it in parentheses. Thus, it uses the</p>
<span class="p">}</span>
<span class="nx">parseFunctionBody</span><span class="p">(</span><span class="nx">node</span><span class="p">,</span> <span class="nx">allowExpressionBody</span><span class="p">);</span>
<span class="k">return</span> <span class="nx">finishNode</span><span class="p">(</span><span class="nx">node</span><span class="p">,</span> <span class="s2">"FunctionExpression"</span><span class="p">);</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-142"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-142">¶</a> </div> <p>Parse arrow function expression with given parameters.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class=" [...]
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-143"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-143">¶</a> </div> <p>Parse arrow function expression with given parameters.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class=" [...]
<span class="nx">initFunction</span><span class="p">(</span><span class="nx">node</span><span class="p">);</span>
<span class="kd">var</span> <span class="nx">defaults</span> <span class="o">=</span> <span class="nx">node</span><span class="p">.</span><span class="nx">defaults</span><span class="p">,</span> <span class="nx">hasDefaults</span> <span class="o">=</span> <span class="kc">false</span><span class="p">;</span>
@@ -1687,7 +1708,7 @@ least, not without wrapping it in parentheses. Thus, it uses the</p>
<span class="nx">parseFunctionBody</span><span class="p">(</span><span class="nx">node</span><span class="p">,</span> <span class="kc">true</span><span class="p">);</span>
<span class="k">return</span> <span class="nx">finishNode</span><span class="p">(</span><span class="nx">node</span><span class="p">,</span> <span class="s2">"ArrowFunctionExpression"</span><span class="p">);</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-143"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-143">¶</a> </div> <p>Parse function parameters.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">parseFunctionParams</spa [...]
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-144"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-144">¶</a> </div> <p>Parse function parameters.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">parseFunctionParams</spa [...]
<span class="kd">var</span> <span class="nx">defaults</span> <span class="o">=</span> <span class="p">[],</span> <span class="nx">hasDefaults</span> <span class="o">=</span> <span class="kc">false</span><span class="p">;</span>
<span class="nx">expect</span><span class="p">(</span><span class="nx">_parenL</span><span class="p">);</span>
@@ -1714,19 +1735,19 @@ least, not without wrapping it in parentheses. Thus, it uses the</p>
<span class="p">}</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">hasDefaults</span><span class="p">)</span> <span class="nx">node</span><span class="p">.</span><span class="nx">defaults</span> <span class="o">=</span> <span class="nx">defaults</span><span class="p">;</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-144"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-144">¶</a> </div> <p>Parse function body and check parameters.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">parseFunc [...]
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-145"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-145">¶</a> </div> <p>Parse function body and check parameters.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">parseFunc [...]
<span class="kd">var</span> <span class="nx">isExpression</span> <span class="o">=</span> <span class="nx">allowExpression</span> <span class="o">&&</span> <span class="nx">tokType</span> <span class="o">!==</span> <span class="nx">_braceL</span><span class="p">;</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">isExpression</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">node</span><span class="p">.</span><span class="nx">body</span> <span class="o">=</span> <span class="nx">parseExpression</span><span class="p">(</span><span class="kc">true</span><span class="p">);</span>
<span class="nx">node</span><span class="p">.</span><span class="nx">expression</span> <span class="o">=</span> <span class="kc">true</span><span class="p">;</span>
- <span class="p">}</span> <span class="k">else</span> <span class="p">{</span></pre></div> </td> </tr> <tr id="section-145"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-145">¶</a> </div> <p>Start a new scope with regard to labels and the <code>inFunction</code>
+ <span class="p">}</span> <span class="k">else</span> <span class="p">{</span></pre></div> </td> </tr> <tr id="section-146"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-146">¶</a> </div> <p>Start a new scope with regard to labels and the <code>inFunction</code>
flag (restore them to their old value afterwards).</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">var</span> <span class="nx">oldInFunc</span> <span class="o">=</span> <span class="nx">inFunction</span><span class="p">,</span> <span class="nx">oldInGen</span> <span class="o">=</span> <span class="nx">inGenerator</span><span class="p">,</span> <span class="nx">oldLabels</span> <span class="o">=</span> <span class="nx">l [...]
<span class="nx">inFunction</span> <span class="o">=</span> <span class="kc">true</span><span class="p">;</span> <span class="nx">inGenerator</span> <span class="o">=</span> <span class="nx">node</span><span class="p">.</span><span class="nx">generator</span><span class="p">;</span> <span class="nx">labels</span> <span class="o">=</span> <span class="p">[];</span>
<span class="nx">node</span><span class="p">.</span><span class="nx">body</span> <span class="o">=</span> <span class="nx">parseBlock</span><span class="p">(</span><span class="kc">true</span><span class="p">);</span>
<span class="nx">node</span><span class="p">.</span><span class="nx">expression</span> <span class="o">=</span> <span class="kc">false</span><span class="p">;</span>
<span class="nx">inFunction</span> <span class="o">=</span> <span class="nx">oldInFunc</span><span class="p">;</span> <span class="nx">inGenerator</span> <span class="o">=</span> <span class="nx">oldInGen</span><span class="p">;</span> <span class="nx">labels</span> <span class="o">=</span> <span class="nx">oldLabels</span><span class="p">;</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-146"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-146">¶</a> </div> <p>If this is a strict mode function, verify that argument names
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-147"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-147">¶</a> </div> <p>If this is a strict mode function, verify that argument names
are not repeated, and it does not try to bind the words <code>eval</code>
or <code>arguments</code>.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="k">if</span> <span class="p">(</span><span class="nx">strict</span> <span class="o">||</span> <span class="o">!</span><span class="nx">isExpression</span> <span class="o">&&</span> <span class="nx">node</span><span class="p">.</span><span class="nx">body</span><span class="p">.</span><span class="nx">body</span><span class="p">.</span><span cla [...]
<span class="kd">var</span> <span class="nx">nameHash</span> <span class="o">=</span> <span class="p">{};</span>
@@ -1737,7 +1758,7 @@ or <code>arguments</code>.</p> </td> <td class="code">
<span class="k">if</span> <span class="p">(</span><span class="nx">node</span><span class="p">.</span><span class="nx">rest</span><span class="p">)</span>
<span class="nx">checkFunctionParam</span><span class="p">(</span><span class="nx">node</span><span class="p">.</span><span class="nx">rest</span><span class="p">,</span> <span class="nx">nameHash</span><span class="p">);</span>
<span class="p">}</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-147"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-147">¶</a> </div> <p>Parse a class declaration or literal (depending on the
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-148"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-148">¶</a> </div> <p>Parse a class declaration or literal (depending on the
<code>isStatement</code> parameter).</p> </td> <td class="code"> <div class="highlight"><pre>
<span class="kd">function</span> <span class="nx">parseClass</span><span class="p">(</span><span class="nx">node</span><span class="p">,</span> <span class="nx">isStatement</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">next</span><span class="p">();</span>
@@ -1771,7 +1792,7 @@ or <code>arguments</code>.</p> </td> <td class="code">
<span class="p">}</span>
<span class="nx">node</span><span class="p">.</span><span class="nx">body</span> <span class="o">=</span> <span class="nx">finishNode</span><span class="p">(</span><span class="nx">classBody</span><span class="p">,</span> <span class="s2">"ClassBody"</span><span class="p">);</span>
<span class="k">return</span> <span class="nx">finishNode</span><span class="p">(</span><span class="nx">node</span><span class="p">,</span> <span class="nx">isStatement</span> <span class="o">?</span> <span class="s2">"ClassDeclaration"</span> <span class="o">:</span> <span class="s2">"ClassExpression"</span><span class="p">);</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-148"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-148">¶</a> </div> <p>Parses a comma-separated list of expressions, and returns them as
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-149"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-149">¶</a> </div> <p>Parses a comma-separated list of expressions, and returns them as
an array. <code>close</code> is the token type that ends the list, and
<code>allowEmpty</code> can be turned on to allow subsequent commas with
nothing in between them to be parsed as <code>null</code> (which is needed
@@ -1787,7 +1808,7 @@ for array literals).</p> </td> <td class="code">
<span class="k">else</span> <span class="nx">elts</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="nx">parseExpression</span><span class="p">(</span><span class="kc">true</span><span class="p">));</span>
<span class="p">}</span>
<span class="k">return</span> <span class="nx">elts</span><span class="p">;</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-149"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-149">¶</a> </div> <p>Parse the next token as an identifier. If <code>liberal</code> is true (used
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-150"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-150">¶</a> </div> <p>Parse the next token as an identifier. If <code>liberal</code> is true (used
when parsing properties), it will also convert keywords into
identifiers.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">parseIdent</span><span class="p">(</span><span class="nx">liberal</span><span class="p">)</span> <span class="p">{</span>
<span class="kd">var</span> <span class="nx">node</span> <span class="o">=</span> <span class="nx">startNode</span><span class="p">();</span>
@@ -1808,19 +1829,19 @@ identifiers.</p> </td> <td class="code"> <
<span class="nx">tokRegexpAllowed</span> <span class="o">=</span> <span class="kc">false</span><span class="p">;</span>
<span class="nx">next</span><span class="p">();</span>
<span class="k">return</span> <span class="nx">finishNode</span><span class="p">(</span><span class="nx">node</span><span class="p">,</span> <span class="s2">"Identifier"</span><span class="p">);</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-150"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-150">¶</a> </div> <p>Parses module export declaration.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">parseExport</span [...]
- <span class="nx">next</span><span class="p">();</span></pre></div> </td> </tr> <tr id="section-151"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-151">¶</a> </div> <p>export var|const|let|function|class ...;</p> </td> <td class="code"> <div class="highlight"><pre> <span class="k">if</span> [...]
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-151"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-151">¶</a> </div> <p>Parses module export declaration.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">parseExport</span [...]
+ <span class="nx">next</span><span class="p">();</span></pre></div> </td> </tr> <tr id="section-152"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-152">¶</a> </div> <p>export var|const|let|function|class ...;</p> </td> <td class="code"> <div class="highlight"><pre> <span class="k">if</span> [...]
<span class="nx">node</span><span class="p">.</span><span class="nx">declaration</span> <span class="o">=</span> <span class="nx">parseStatement</span><span class="p">();</span>
<span class="nx">node</span><span class="p">[</span><span class="s1">'default'</span><span class="p">]</span> <span class="o">=</span> <span class="kc">false</span><span class="p">;</span>
<span class="nx">node</span><span class="p">.</span><span class="nx">specifiers</span> <span class="o">=</span> <span class="kc">null</span><span class="p">;</span>
<span class="nx">node</span><span class="p">.</span><span class="nx">source</span> <span class="o">=</span> <span class="kc">null</span><span class="p">;</span>
- <span class="p">}</span> <span class="k">else</span></pre></div> </td> </tr> <tr id="section-152"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-152">¶</a> </div> <p>export default ...;</p> </td> <td class="code"> <div class="highlight"><pre> <span class="k">if</span> <span class="p">(</span [...]
+ <span class="p">}</span> <span class="k">else</span></pre></div> </td> </tr> <tr id="section-153"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-153">¶</a> </div> <p>export default ...;</p> </td> <td class="code"> <div class="highlight"><pre> <span class="k">if</span> <span class="p">(</span [...]
<span class="nx">node</span><span class="p">.</span><span class="nx">declaration</span> <span class="o">=</span> <span class="nx">parseExpression</span><span class="p">(</span><span class="kc">true</span><span class="p">);</span>
<span class="nx">node</span><span class="p">[</span><span class="s1">'default'</span><span class="p">]</span> <span class="o">=</span> <span class="kc">true</span><span class="p">;</span>
<span class="nx">node</span><span class="p">.</span><span class="nx">specifiers</span> <span class="o">=</span> <span class="kc">null</span><span class="p">;</span>
<span class="nx">node</span><span class="p">.</span><span class="nx">source</span> <span class="o">=</span> <span class="kc">null</span><span class="p">;</span>
<span class="nx">semicolon</span><span class="p">();</span>
- <span class="p">}</span> <span class="k">else</span> <span class="p">{</span></pre></div> </td> </tr> <tr id="section-153"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-153">¶</a> </div> <p>export * from '...'
+ <span class="p">}</span> <span class="k">else</span> <span class="p">{</span></pre></div> </td> </tr> <tr id="section-154"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-154">¶</a> </div> <p>export * from '...'
export { x, y as z } [from '...']</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">var</span> <span class="nx">isBatch</span> <span class="o">=</span> <span class="nx">tokType</span> <span class="o">===</span> <span class="nx">_star</span><span class="p">;</span>
<span class="nx">node</span><span class="p">.</span><span class="nx">declaration</span> <span class="o">=</span> <span class="kc">null</span><span class="p">;</span>
<span class="nx">node</span><span class="p">[</span><span class="s1">'default'</span><span class="p">]</span> <span class="o">=</span> <span class="kc">false</span><span class="p">;</span>
@@ -1834,12 +1855,12 @@ export { x, y as z } [from '...']</p> </td> <td class="c
<span class="p">}</span>
<span class="p">}</span>
<span class="k">return</span> <span class="nx">finishNode</span><span class="p">(</span><span class="nx">node</span><span class="p">,</span> <span class="s2">"ExportDeclaration"</span><span class="p">);</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-154"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-154">¶</a> </div> <p>Parses a comma-separated list of module exports.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">pa [...]
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-155"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-155">¶</a> </div> <p>Parses a comma-separated list of module exports.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">pa [...]
<span class="kd">var</span> <span class="nx">nodes</span> <span class="o">=</span> <span class="p">[],</span> <span class="nx">first</span> <span class="o">=</span> <span class="kc">true</span><span class="p">;</span>
- <span class="k">if</span> <span class="p">(</span><span class="nx">tokType</span> <span class="o">===</span> <span class="nx">_star</span><span class="p">)</span> <span class="p">{</span></pre></div> </td> </tr> <tr id="section-155"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-155">¶</a> </div> <p>export * from '...'</p> [...]
+ <span class="k">if</span> <span class="p">(</span><span class="nx">tokType</span> <span class="o">===</span> <span class="nx">_star</span><span class="p">)</span> <span class="p">{</span></pre></div> </td> </tr> <tr id="section-156"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-156">¶</a> </div> <p>export * from '...'</p> [...]
<span class="nx">next</span><span class="p">();</span>
<span class="nx">nodes</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="nx">finishNode</span><span class="p">(</span><span class="nx">node</span><span class="p">,</span> <span class="s2">"ExportBatchSpecifier"</span><span class="p">));</span>
- <span class="p">}</span> <span class="k">else</span> <span class="p">{</span></pre></div> </td> </tr> <tr id="section-156"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-156">¶</a> </div> <p>export { x, y as z } [from '...']</p> </td> <td class="code"> <div class="highlight"><pre> <span cl [...]
+ <span class="p">}</span> <span class="k">else</span> <span class="p">{</span></pre></div> </td> </tr> <tr id="section-157"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-157">¶</a> </div> <p>export { x, y as z } [from '...']</p> </td> <td class="code"> <div class="highlight"><pre> <span cl [...]
<span class="k">while</span> <span class="p">(</span><span class="o">!</span><span class="nx">eat</span><span class="p">(</span><span class="nx">_braceR</span><span class="p">))</span> <span class="p">{</span>
<span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">first</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">expect</span><span class="p">(</span><span class="nx">_comma</span><span class="p">);</span>
@@ -1858,8 +1879,8 @@ export { x, y as z } [from '...']</p> </td> <td class="c
<span class="p">}</span>
<span class="p">}</span>
<span class="k">return</span> <span class="nx">nodes</span><span class="p">;</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-157"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-157">¶</a> </div> <p>Parses import declaration.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">parseImport</span><span [...]
- <span class="nx">next</span><span class="p">();</span></pre></div> </td> </tr> <tr id="section-158"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-158">¶</a> </div> <p>import '...';</p> </td> <td class="code"> <div class="highlight"><pre> <span class="k">if</span> <span class="p">(</span><sp [...]
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-158"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-158">¶</a> </div> <p>Parses import declaration.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">parseImport</span><span [...]
+ <span class="nx">next</span><span class="p">();</span></pre></div> </td> </tr> <tr id="section-159"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-159">¶</a> </div> <p>import '...';</p> </td> <td class="code"> <div class="highlight"><pre> <span class="k">if</span> <span class="p">(</span><sp [...]
<span class="nx">node</span><span class="p">.</span><span class="nx">specifiers</span> <span class="o">=</span> <span class="p">[];</span>
<span class="nx">node</span><span class="p">.</span><span class="nx">source</span> <span class="o">=</span> <span class="nx">parseExprAtom</span><span class="p">();</span>
<span class="nx">node</span><span class="p">.</span><span class="nx">kind</span> <span class="o">=</span> <span class="s2">""</span><span class="p">;</span>
@@ -1867,11 +1888,11 @@ export { x, y as z } [from '...']</p> </td> <td class="c
<span class="nx">node</span><span class="p">.</span><span class="nx">specifiers</span> <span class="o">=</span> <span class="nx">parseImportSpecifiers</span><span class="p">();</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">tokType</span> <span class="o">!==</span> <span class="nx">_name</span> <span class="o">||</span> <span class="nx">tokVal</span> <span class="o">!==</span> <span class="s2">"from"</span><span class="p">)</span> <span class="nx">unexpected</span><span class="p">();</span>
<span class="nx">next</span><span class="p">();</span>
- <span class="nx">node</span><span class="p">.</span><span class="nx">source</span> <span class="o">=</span> <span class="nx">tokType</span> <span class="o">===</span> <span class="nx">_string</span> <span class="o">?</span> <span class="nx">parseExprAtom</span><span class="p">()</span> <span class="o">:</span> <span class="nx">unexpected</span><span class="p">();</span></pre></div> </td> </tr> <tr id="section-159"> <td [...]
+ <span class="nx">node</span><span class="p">.</span><span class="nx">source</span> <span class="o">=</span> <span class="nx">tokType</span> <span class="o">===</span> <span class="nx">_string</span> <span class="o">?</span> <span class="nx">parseExprAtom</span><span class="p">()</span> <span class="o">:</span> <span class="nx">unexpected</span><span class="p">();</span></pre></div> </td> </tr> <tr id="section-160"> <td [...]
(it doesn't support mixed default + named yet)</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">node</span><span class="p">.</span><span class="nx">kind</span> <span class="o">=</span> <span class="nx">node</span><span class="p">.</span><span class="nx">specifiers</span><span class="p">[</span><span class="mi">0</span><span class="p">][</span><span class="s1">'default'</span><span class="p">]</span> <span class=" [...]
<span class="p">}</span>
<span class="k">return</span> <span class="nx">finishNode</span><span class="p">(</span><span class="nx">node</span><span class="p">,</span> <span class="s2">"ImportDeclaration"</span><span class="p">);</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-160"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-160">¶</a> </div> <p>Parses a comma-separated list of module imports.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">pa [...]
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-161"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-161">¶</a> </div> <p>Parses a comma-separated list of module imports.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">pa [...]
<span class="kd">var</span> <span class="nx">nodes</span> <span class="o">=</span> <span class="p">[],</span> <span class="nx">first</span> <span class="o">=</span> <span class="kc">true</span><span class="p">;</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">tokType</span> <span class="o">===</span> <span class="nx">_star</span><span class="p">)</span> <span class="p">{</span>
<span class="kd">var</span> <span class="nx">node</span> <span class="o">=</span> <span class="nx">startNode</span><span class="p">();</span>
@@ -1883,7 +1904,7 @@ export { x, y as z } [from '...']</p> </td> <td class="c
<span class="nx">nodes</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="nx">finishNode</span><span class="p">(</span><span class="nx">node</span><span class="p">,</span> <span class="s2">"ImportBatchSpecifier"</span><span class="p">));</span>
<span class="k">return</span> <span class="nx">nodes</span><span class="p">;</span>
<span class="p">}</span>
- <span class="k">if</span> <span class="p">(</span><span class="nx">tokType</span> <span class="o">===</span> <span class="nx">_name</span><span class="p">)</span> <span class="p">{</span></pre></div> </td> </tr> <tr id="section-161"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-161">¶</a> </div> <p>import defaultObj, { x, y as z } [...]
+ <span class="k">if</span> <span class="p">(</span><span class="nx">tokType</span> <span class="o">===</span> <span class="nx">_name</span><span class="p">)</span> <span class="p">{</span></pre></div> </td> </tr> <tr id="section-162"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-162">¶</a> </div> <p>import defaultObj, { x, y as z } [...]
<span class="nx">node</span><span class="p">.</span><span class="nx">id</span> <span class="o">=</span> <span class="nx">parseIdent</span><span class="p">();</span>
<span class="nx">checkLVal</span><span class="p">(</span><span class="nx">node</span><span class="p">.</span><span class="nx">id</span><span class="p">,</span> <span class="kc">true</span><span class="p">);</span>
<span class="nx">node</span><span class="p">.</span><span class="nx">name</span> <span class="o">=</span> <span class="kc">null</span><span class="p">;</span>
@@ -1911,7 +1932,7 @@ export { x, y as z } [from '...']</p> </td> <td class="c
<span class="nx">nodes</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="nx">finishNode</span><span class="p">(</span><span class="nx">node</span><span class="p">,</span> <span class="s2">"ImportSpecifier"</span><span class="p">));</span>
<span class="p">}</span>
<span class="k">return</span> <span class="nx">nodes</span><span class="p">;</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-162"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-162">¶</a> </div> <p>Parses yield expression inside generator.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">parseYiel [...]
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-163"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-163">¶</a> </div> <p>Parses yield expression inside generator.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">parseYiel [...]
<span class="kd">var</span> <span class="nx">node</span> <span class="o">=</span> <span class="nx">startNode</span><span class="p">();</span>
<span class="nx">next</span><span class="p">();</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">eat</span><span class="p">(</span><span class="nx">_semi</span><span class="p">)</span> <span class="o">||</span> <span class="nx">canInsertSemicolon</span><span class="p">())</span> <span class="p">{</span>
@@ -1922,7 +1943,7 @@ export { x, y as z } [from '...']</p> </td> <td class="c
<span class="nx">node</span><span class="p">.</span><span class="nx">argument</span> <span class="o">=</span> <span class="nx">parseExpression</span><span class="p">(</span><span class="kc">true</span><span class="p">);</span>
<span class="p">}</span>
<span class="k">return</span> <span class="nx">finishNode</span><span class="p">(</span><span class="nx">node</span><span class="p">,</span> <span class="s2">"YieldExpression"</span><span class="p">);</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-163"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-163">¶</a> </div> <p>Parses array and generator comprehensions.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">parseCom [...]
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-164"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-164">¶</a> </div> <p>Parses array and generator comprehensions.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">function</span> <span class="nx">parseCom [...]
<span class="nx">node</span><span class="p">.</span><span class="nx">blocks</span> <span class="o">=</span> <span class="p">[];</span>
<span class="k">while</span> <span class="p">(</span><span class="nx">tokType</span> <span class="o">===</span> <span class="nx">_for</span><span class="p">)</span> <span class="p">{</span>
<span class="kd">var</span> <span class="nx">block</span> <span class="o">=</span> <span class="nx">startNode</span><span class="p">();</span>
@@ -1931,7 +1952,7 @@ export { x, y as z } [from '...']</p> </td> <td class="c
<span class="nx">block</span><span class="p">.</span><span class="nx">left</span> <span class="o">=</span> <span class="nx">toAssignable</span><span class="p">(</span><span class="nx">parseExprAtom</span><span class="p">());</span>
<span class="nx">checkLVal</span><span class="p">(</span><span class="nx">block</span><span class="p">.</span><span class="nx">left</span><span class="p">,</span> <span class="kc">true</span><span class="p">);</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">tokType</span> <span class="o">!==</span> <span class="nx">_name</span> <span class="o">||</span> <span class="nx">tokVal</span> <span class="o">!==</span> <span class="s2">"of"</span><span class="p">)</span> <span class="nx">unexpected</span><span class="p">();</span>
- <span class="nx">next</span><span class="p">();</span></pre></div> </td> </tr> <tr id="section-164"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-164">¶</a> </div> <p><code>of</code> property is here for compatibility with Esprima's AST
+ <span class="nx">next</span><span class="p">();</span></pre></div> </td> </tr> <tr id="section-165"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-165">¶</a> </div> <p><code>of</code> property is here for compatibility with Esprima's AST
which also supports deprecated [for (... in ...) expr]</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">block</span><span class="p">.</span><span class="nx">of</span> <span class="o">=</span> <span class="kc">true</span><span class="p">;</span>
<span class="nx">block</span><span class="p">.</span><span class="nx">right</span> <span class="o">=</span> <span class="nx">parseExpression</span><span class="p">();</span>
<span class="nx">expect</span><span class="p">(</span><span class="nx">_parenR</span><span class="p">);</span>
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