[Pkg-javascript-commits] [uglifyjs] 98/190: Added a mangle properties option

[Antonio Terceiro]

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terceiro pushed a commit to annotated tag upstream/2.7.0
in repository uglifyjs.

commit 799509e145e56a9a6ccbaad6d32e1c404e0469eb
Author: Jeremy Marzka <jeremy.marzka at techthrive.com>
Date:   Sun Jan 17 21:54:09 2016 -0500

    Added a mangle properties option
---
 README.md     |  3 +++
 tools/node.js | 31 ++++++++++++++++++++-----------
 2 files changed, 23 insertions(+), 11 deletions(-)

diff --git a/README.md b/README.md
index 6dea439..9cde9ee 100644
--- a/README.md
+++ b/README.md
@@ -626,6 +626,9 @@ Other options:
 
 - `mangle` — pass `false` to skip mangling names.
 
+- `mangleProperties` (default `false`) — pass an object to specify custom
+  mangle property options.
+
 - `output` (default `null`) — pass an object if you wish to specify
   additional [output options][codegen].  The defaults are optimized
   for best compression.
diff --git a/tools/node.js b/tools/node.js
index f604866..5764286 100644
--- a/tools/node.js
+++ b/tools/node.js
@@ -32,15 +32,17 @@ UglifyJS.AST_Node.warn_function = function(txt) {
 
 exports.minify = function(files, options) {
     options = UglifyJS.defaults(options, {
-        spidermonkey : false,
-        outSourceMap : null,
-        sourceRoot   : null,
-        inSourceMap  : null,
-        fromString   : false,
-        warnings     : false,
-        mangle       : {},
-        output       : null,
-        compress     : {}
+        spidermonkey     : false,
+        outSourceMap     : null,
+        sourceRoot       : null,
+        inSourceMap      : null,
+        fromString       : false,
+        warnings         : false,
+        mangle           : {},
+        mangleProperties : false,
+        nameCache        : null,
+        output           : null,
+        compress         : {}
     });
     UglifyJS.base54.reset();
 
@@ -77,14 +79,21 @@ exports.minify = function(files, options) {
         toplevel = toplevel.transform(sq);
     }
 
-    // 3. mangle
+    // 3. mangle properties
+    if (options.mangleProperties || options.nameCache) {
+        options.mangleProperties.cache = UglifyJS.readNameCache(options.nameCache, "props");
+        toplevel = UglifyJS.mangle_properties(toplevel, options.mangleProperties);
+        UglifyJS.writeNameCache(options.nameCache, "props", options.mangleProperties.cache);
+    }
+
+    // 4. mangle
     if (options.mangle) {
         toplevel.figure_out_scope(options.mangle);
         toplevel.compute_char_frequency(options.mangle);
         toplevel.mangle_names(options.mangle);
     }
 
-    // 4. output
+    // 5. output
     var inMap = options.inSourceMap;
     var output = {};
     if (typeof options.inSourceMap == "string") {

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