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use transform insted treewalker

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This commit is contained in:
Onoshko Dan 2014-04-15 21:48:09 +07:00
parent a2f7a07c11
commit 363019dc5a
1 changed files with 46 additions and 73 deletions
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119
lib/translate.js
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@ -37,9 +37,8 @@
"use strict";
function translate(tree){
var queue = [];
tree.walk(new TreeWalker(function(node){
var tt = new TreeTransformer(null, function(node){
var newNode, props;
if(node instanceof AST_Binary && node.operator == '**'){
@ -55,10 +54,7 @@ function translate(tree){
expression : new AST_SymbolRef({ name : 'Math', start : props.start, end : props.start })
});
newNode = new AST_Call(props);
queue.push(function(){
ReplaceObject(node, newNode);
});
node = new AST_Call(props);
} else
if(node instanceof AST_Binary && node.operator == '%%'){
@ -73,64 +69,52 @@ function translate(tree){
end : props.start
});
newNode = new AST_Call(props);
queue.push(function(){
ReplaceObject(node, newNode);
node = new AST_Call(props);
} else
if(node instanceof AST_SimpleStatement && node.body instanceof AST_Assign && node.body.operator == '?='){
node.body.operator = '=';
props = {
args : [node.body.left],
start : new AST_Token({ nlb : false, type : 'name', value : '$_cola_isntset' }),
end : new AST_Token({ nlb : false, type : 'punc', value : ')' })
};
props.expression = new AST_SymbolRef({
name : '$_cola_isntset',
start : props.start,
end : props.start
});
node = new AST_If({
body : node.clone(),
start : new AST_Token({ nlb : false, type : 'keyword', value : 'if' }),
end : new AST_Token({ nlb : false, type : 'punc', value : ';' }),
condition : new AST_Call(props)
});
} else
if(node instanceof AST_Assign && node.operator == '?='){
var parent = this.parent();
node.operator = '=';
if(parent instanceof AST_SimpleStatement){
node.operator = '=';
props = {
args : [node.left],
start : new AST_Token({ nlb : false, type : 'name', value : '$_cola_isntset' }),
end : new AST_Token({ nlb : false, type : 'punc', value : ')' })
};
props.expression = new AST_SymbolRef({
name : '$_cola_isntset',
start : props.start,
end : props.start
props = {
args : [node.left],
start : new AST_Token({ nlb : false, type : 'name', value : '$_cola_isntset' }),
end : new AST_Token({ nlb : false, type : 'punc', value : ')' })
};
props.expression = new AST_SymbolRef({
name : '$_cola_isntset',
start : props.start,
end : props.start
});
newNode = new AST_If({
body : CopyObject(parent),
start : new AST_Token({ nlb : false, type : 'keyword', value : 'if' }),
end : new AST_Token({ nlb : false, type : 'punc', value : ';' }),
condition : new AST_Call(props)
});
queue.push(function(){
ReplaceObject(parent, newNode);
});
} else {
node.operator = '=';
props = {
args : [node.left],
start : new AST_Token({ nlb : false, type : 'name', value : '$_cola_isntset' }),
end : new AST_Token({ nlb : false, type : 'punc', value : ')' })
};
props.expression = new AST_SymbolRef({
name : '$_cola_isntset',
start : props.start,
end : props.start
});
newNode = new AST_Conditional({
start : new AST_Token({ nlb : false, type : 'punc', value : '(' }),
end : new AST_Token({ nlb : false, type : 'punc', value : ')' }),
condition : new AST_Call(props),
consequent : CopyObject(node),
alternative : node.left
});
queue.push(function(){
ReplaceObject(node, newNode);
});
}
node = new AST_Conditional({
start : new AST_Token({ nlb : false, type : 'punc', value : '(' }),
end : new AST_Token({ nlb : false, type : 'punc', value : ')' }),
condition : new AST_Call(props),
consequent : node.clone(),
alternative : node.left
});
} else
if(node instanceof AST_Binary && node.operator == 'is'){
@ -145,10 +129,7 @@ function translate(tree){
end : props.start
});
newNode = new AST_Call(props);
queue.push(function(){
ReplaceObject(node, newNode);
});
node = new AST_Call(props);
} else
if(node instanceof AST_Binary && node.operator == 'isnt'){
@ -163,10 +144,7 @@ function translate(tree){
end : props.start
});
newNode = new AST_Call(props);
queue.push(function(){
ReplaceObject(node, newNode);
});
node = new AST_Call(props);
} else
if(node instanceof AST_StringTemplate){
@ -186,20 +164,15 @@ function translate(tree){
end : node.body[i].end
});
queue.push(function(){
ReplaceObject(node, newNode);
});
node = newNode;
} else
if(node instanceof AST_RegExp && (node.value.indexOf('\n') != -1 || /\/[\w]*x[\w]*$/.test(node.value))){
node.value = node.value.replace(/[\r\n\s]/g,'').replace(/(\/[\w]*)x([\w]*$)/, '$1$2');
}
}));
queue.forEach(function(f){
f();
return node;
});
return tree;
return tree.transform(tt);
}