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added mangler and other stuff

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This commit is contained in:
Mihai Bazon
2012-08-20 17:19:30 +03:00
parent 1fe0ff9fff
commit 458e251d7e
5 changed files with 208 additions and 63 deletions
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34
lib/ast.js
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@@ -44,6 +44,11 @@ var AST_Node = DEFNODE("Node", "start end", {
}
}, null);
AST_Node.warn_function = noop;
AST_Node.warn = function(txt, props) {
AST_Node.warn_function(string_template(txt, props));
};
var AST_Debugger = DEFNODE("Debugger", null, {
$documentation: "Represents a debugger statement"
});
@@ -121,6 +126,7 @@ var AST_For = DEFNODE("For", "init condition step", {
if (this.init) this.init._walk(visitor);
if (this.condition) this.condition._walk(visitor);
if (this.step) this.step._walk(visitor);
this.body._walk(visitor);
});
}
}, AST_Statement);
@@ -132,6 +138,7 @@ var AST_ForIn = DEFNODE("ForIn", "init name object", {
if (this.init) this.init._walk(visitor);
if (this.name) this.name._walk(visitor);
if (this.object) this.object._walk(visitor);
this.body._walk(visitor);
});
}
}, AST_Statement);
@@ -151,12 +158,15 @@ 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 = {};
this.variables = {};
this.functions = {};
this.uses_with = false;
this.uses_eval = false;
this.parent_scope = null;
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.cname = -1; // the current index for mangling functions/variables
this.lname = -1; // the current index for mangling labels
}
}, AST_BlockStatement);
@@ -496,17 +506,7 @@ var AST_Label = DEFNODE("Label", null, {
}, AST_SymbolDeclaration);
var AST_SymbolRef = DEFNODE("SymbolRef", "symbol", {
$documentation: "Reference to some symbol (not definition/declaration)",
reference: function(symbol) {
if (symbol) {
this.symbol = symbol;
symbol.references.push(this);
this.global = symbol.scope.parent_scope == null;
} else {
this.undeclared = true;
this.global = true;
}
}
$documentation: "Reference to some symbol (not definition/declaration)"
}, AST_Symbol);
var AST_LabelRef = DEFNODE("LabelRef", null, {