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cleaned up some mess and started the actual compressor

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This commit is contained in:
Mihai Bazon
2012-08-21 15:45:05 +03:00
parent 7ae1c600a2
commit ffe58a9961
7 changed files with 315 additions and 52 deletions
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35
lib/ast.js
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@@ -35,6 +35,9 @@ var AST_Token = DEFNODE("Token", "type value line col pos endpos nlb comments_be
}, null);
var AST_Node = DEFNODE("Node", "start end", {
clone: function() {
return new this.CTOR(this);
},
$documentation: "Base class of all AST nodes",
_walk: function(visitor) {
return visitor._visit(this);
@@ -44,9 +47,10 @@ var AST_Node = DEFNODE("Node", "start end", {
}
}, null);
AST_Node.warn_function = noop;
AST_Node.warn_function = null;
AST_Node.warn = function(txt, props) {
AST_Node.warn_function(string_template(txt, props));
if (AST_Node.warn_function)
AST_Node.warn_function(string_template(txt, props));
};
var AST_Debugger = DEFNODE("Debugger", null, {
@@ -86,10 +90,9 @@ var AST_BlockStatement = DEFNODE("BlockStatement", null, {
$documentation: "A block statement.",
_walk: function(visitor) {
return visitor._visit(this, function(){
var a = this.body, i = 0, n = a.length;
while (i < n) {
a[i++]._walk(visitor);
}
this.body.forEach(function(stat){
stat._walk(visitor);
});
});
}
}, AST_Statement);
@@ -135,9 +138,8 @@ var AST_ForIn = DEFNODE("ForIn", "init name object", {
$documentation: "A `for ... in` statement",
_walk: function(visitor) {
return visitor._visit(this, function(){
if (this.init) this.init._walk(visitor);
else if (this.name) this.name._walk(visitor);
if (this.object) this.object._walk(visitor);
this.init._walk(visitor);
this.object._walk(visitor);
this.body._walk(visitor);
});
}
@@ -295,7 +297,7 @@ var AST_Try = DEFNODE("Try", "btry bcatch bfinally", {
// IE which simply introduces the name in the surrounding scope. If
// we ever want to fix this then AST_Catch should inherit from
// AST_Scope.
var AST_Catch = DEFNODE("Catch", "argname", {
var AST_Catch = DEFNODE("Catch", "argname body", {
$documentation: "A `catch` node; only makes sense as part of a `try` statement",
_walk: function(visitor) {
return visitor._visit(this, function(){
@@ -303,11 +305,16 @@ var AST_Catch = DEFNODE("Catch", "argname", {
this.body._walk(visitor);
});
}
}, AST_BlockStatement);
});
var AST_Finally = DEFNODE("Finally", null, {
$documentation: "A `finally` node; only makes sense as part of a `try` statement"
}, AST_BlockStatement);
var AST_Finally = DEFNODE("Finally", "body", {
$documentation: "A `finally` node; only makes sense as part of a `try` statement",
_walk: function(visitor) {
return visitor._visit(this, function(){
this.body._walk(visitor);
});
}
});
/* -----[ VAR/CONST ]----- */