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handle labels properly

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(they can't be handled the same way as variables in a scope)
This commit is contained in:
Mihai Bazon
2012-08-21 12:37:05 +03:00
parent 159333f4c5
commit 92bd53b513
2 changed files with 43 additions and 41 deletions
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8
lib/ast.js
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@@ -158,15 +158,13 @@ var AST_With = DEFNODE("With", "expression", {
var AST_Scope = DEFNODE("Scope", null, {
$documentation: "Base class for all statements introducing a lexical scope",
initialize: function() {
this.labels = {}; // map name to AST_Label (labels defined in this scope)
this.variables = {}; // map name to AST_SymbolVar (variables defined in this scope; includes functions)
this.functions = {}; // map name to AST_SymbolDefun (functions defined in this scope)
this.uses_with = false; // will be set to true if this or some nested scope uses the `with` statement
this.uses_eval = false; // will be set to true if this or nested scope uses the global `eval`
this.parent_scope = null; // the parent scope
this.enclosed = []; // a list of variables this or from outer scope(s) that are accessed from this or inner scopes
this.enclosed = []; // a list of variables from this or outer scope(s) that are referenced from this or inner scopes
this.cname = -1; // the current index for mangling functions/variables
this.lname = -1; // the current index for mangling labels
}
}, AST_BlockStatement);
@@ -568,7 +566,9 @@ function TreeWalker(callback) {
TreeWalker.prototype = {
_visit: function(node, descend) {
this.stack.push(node);
var ret = this.visit(node, descend);
var ret = this.visit(node, function(){
descend.call(node);
});
if (!ret && descend) {
descend.call(node);
}