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clean up lib/scope.js (#2003)

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fixes #2004
This commit is contained in:
Alex Lam S.L
2017-05-26 03:58:35 +08:00
committed by GitHub
parent 793d61499b
commit c70fb60384
1 changed files with 4 additions and 18 deletions
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22
lib/scope.js
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@@ -183,16 +183,8 @@ AST_Toplevel.DEFMETHOD("figure_out_scope", function(options){
self.walk(tw);
// pass 2: find back references and eval
var func = null;
var globals = self.globals = new Dictionary();
self.globals = new Dictionary();
var tw = new TreeWalker(function(node, descend){
if (node instanceof AST_Lambda) {
var prev_func = func;
func = node;
descend();
func = prev_func;
return true;
}
if (node instanceof AST_LoopControl && node.label) {
node.label.thedef.references.push(node);
return true;
@@ -361,9 +353,7 @@ AST_Symbol.DEFMETHOD("unmangleable", function(options){
});
// labels are always mangleable
AST_Label.DEFMETHOD("unmangleable", function(){
return false;
});
AST_Label.DEFMETHOD("unmangleable", return_false);
AST_Symbol.DEFMETHOD("unreferenced", function(){
return this.definition().references.length == 0
@@ -374,13 +364,9 @@ AST_Symbol.DEFMETHOD("undeclared", function(){
return this.definition().undeclared;
});
AST_LabelRef.DEFMETHOD("undeclared", function(){
return false;
});
AST_LabelRef.DEFMETHOD("undeclared", return_false);
AST_Label.DEFMETHOD("undeclared", function(){
return false;
});
AST_Label.DEFMETHOD("undeclared", return_false);
AST_Symbol.DEFMETHOD("definition", function(){
return this.thedef;