JoBoEVD/UglifyJS
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option to exclude certain names from mangling

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This commit is contained in:
Mihai Bazon
2012-10-02 14:02:33 +03:00
parent dde5b22b5e
commit 36be211e99
2 changed files with 14 additions and 4 deletions
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6
bin/uglifyjs2
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@@ -19,6 +19,7 @@ For example -p 3 will drop 3 directories from file names and ensure they are rel
.describe("o", "Output file (default STDOUT).") .describe("o", "Output file (default STDOUT).")
.describe("b", "Beautify output/specify output options.") .describe("b", "Beautify output/specify output options.")
.describe("m", "Mangle names/pass mangler options.") .describe("m", "Mangle names/pass mangler options.")
.describe("r", "Reserved names to exclude from mangling.")
.describe("c", "Enable compressor/pass compressor options. \ .describe("c", "Enable compressor/pass compressor options. \
Pass options like -c hoist_vars=false,if_return=false. \ Pass options like -c hoist_vars=false,if_return=false. \
Use -c with no argument if you want to disable the squeezer entirely.") Use -c with no argument if you want to disable the squeezer entirely.")
@@ -34,6 +35,7 @@ Use -c with no argument if you want to disable the squeezer entirely.")
.alias("m", "mangle") .alias("m", "mangle")
.alias("c", "compress") .alias("c", "compress")
.alias("d", "define") .alias("d", "define")
.alias("r", "reserved-names")
.string("b") .string("b")
.string("m") .string("m")
@@ -83,6 +85,10 @@ if (COMPRESS && ARGS.d) {
COMPRESS.global_defs = getOptions("d"); COMPRESS.global_defs = getOptions("d");
} }
if (MANGLE && ARGS.r) {
MANGLE.except = ARGS.r.replace(/^\s+|\s+$/g).split(/\s*,+\s*/);
}
var OUTPUT_OPTIONS = { var OUTPUT_OPTIONS = {
beautify: BEAUTIFY ? true : false beautify: BEAUTIFY ? true : false
}; };

10
lib/scope.js
View File

@@ -354,7 +354,8 @@ AST_LoopControl.DEFMETHOD("target", function(){
AST_Toplevel.DEFMETHOD("mangle_names", function(options){ AST_Toplevel.DEFMETHOD("mangle_names", function(options){
options = defaults(options, { options = defaults(options, {
sort: false sort : false,
except : []
}); });
// We only need to mangle declaration nodes. Special logic wired // We only need to mangle declaration nodes. Special logic wired
// into the code generator will display the mangled name if it's // into the code generator will display the mangled name if it's
@@ -376,16 +377,19 @@ AST_Toplevel.DEFMETHOD("mangle_names", function(options){
var a = node.variables; var a = node.variables;
for (var i in a) if (HOP(a, i)) { for (var i in a) if (HOP(a, i)) {
var symbol = a[i]; var symbol = a[i];
if (!(is_setget && symbol instanceof AST_SymbolLambda)) if (!(is_setget && symbol instanceof AST_SymbolLambda)) {
if (options.except.indexOf(symbol.name) < 0) {
to_mangle.push(symbol); to_mangle.push(symbol);
} }
}
}
return; return;
} }
if (node instanceof AST_Label) { if (node instanceof AST_Label) {
var name; var name;
do name = base54(++lname); while (!is_identifier(name)); do name = base54(++lname); while (!is_identifier(name));
node.mangled_name = name; node.mangled_name = name;
return; return true;
} }
}); });
this.walk(tw); this.walk(tw);