JoBoEVD/UglifyJS
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

fix corner case in ie8 & mangle (#3479)

Browse Source 
fixes #3478
This commit is contained in:
Alex Lam S.L
2019-10-15 17:14:48 +08:00
committed by GitHub
parent 009dcdae01
commit 86a8016323
2 changed files with 259 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

32
lib/scope.js
View File

@@ -419,7 +419,9 @@ AST_Toplevel.DEFMETHOD("mangle_names", function(options) {
if (options.cache && node instanceof AST_Toplevel) {
node.globals.each(mangle);
}
node.variables.each(mangle);
node.variables.each(function(def) {
if (!defer_redef(def)) mangle(def);
});
return true;
}
if (node instanceof AST_Label) {
@@ -432,22 +434,11 @@ AST_Toplevel.DEFMETHOD("mangle_names", function(options) {
}
if (!options.ie8 && node instanceof AST_Catch) {
var def = node.argname.definition();
var redef = def.redefined();
if (redef) {
redefined.push(def);
reference(node.argname);
def.references.forEach(reference);
}
var redef = defer_redef(def, node.argname);
descend();
if (!redef) mangle(def);
return true;
}
function reference(sym) {
sym.thedef = redef;
sym.reference(options);
sym.thedef = def;
}
});
this.walk(tw);
redefined.forEach(mangle);
@@ -456,6 +447,21 @@ AST_Toplevel.DEFMETHOD("mangle_names", function(options) {
if (options.reserved.has[def.name]) return;
def.mangle(options);
}
function defer_redef(def, node) {
var redef = def.redefined();
if (!redef) return false;
redefined.push(def);
def.references.forEach(reference);
if (node) reference(node);
return true;
function reference(sym) {
sym.thedef = redef;
sym.reference(options);
sym.thedef = def;
}
}
});
AST_Toplevel.DEFMETHOD("find_colliding_names", function(options) {