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

workaround v8 bug with labels (#4467)

Browse Source 
closes #4466
This commit is contained in:
Alex Lam S.L
2020-12-27 05:32:18 +00:00
committed by GitHub
parent dd6d7b3d88
commit a8785fb694
5 changed files with 145 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
lib/scope.js
View File

@@ -512,6 +512,7 @@ function _default_mangler_options(options) {
keep_fnames : false,
reserved : [],
toplevel : false,
v8 : false,
webkit : false,
});
if (!Array.isArray(options.reserved)) options.reserved = [];
@@ -543,7 +544,7 @@ AST_Toplevel.DEFMETHOD("mangle_names", function(options) {
// lname is incremented when we get to the AST_Label
var save_nesting = lname;
descend();
lname = save_nesting;
if (!options.v8 || !in_label(tw)) lname = save_nesting;
return true;
}
if (node instanceof AST_BlockScope) {
@@ -616,6 +617,14 @@ AST_Toplevel.DEFMETHOD("mangle_names", function(options) {
sym.thedef = def;
}
}
function in_label(tw) {
var level = 0, parent;
while (parent = tw.parent(level++)) {
if (parent instanceof AST_Block) return parent instanceof AST_Toplevel && !options.toplevel;
if (parent instanceof AST_LabeledStatement) return true;
}
}
});
AST_Toplevel.DEFMETHOD("find_colliding_names", function(options) {