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harttle
2016-06-15 00:58:14 +08:00
parent d502860ca9
commit d29558035c
15 changed files with 439 additions and 62 deletions
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context.js
+20 -13
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@@ -1,26 +1,33 @@
const _ = require('lodash');
const identifier = require('./identifier.js');
const lexical = require('./lexical.js');
var context = {
get: function(str){
if(identifier.isLiteral(str)){
return identifier.parseLiteral(str);
}
if(identifier.isVariable(str)){
return _.get(this.context, str);
get: function(str) {
str = str && str.trim();
if(!str) return '';
if (lexical.isLiteral(str)) {
var a = lexical.parseLiteral(str);
return lexical.parseLiteral(str);
}
if (lexical.isVariable(str)) {
for (var i = this.context.length - 1; i >= 0; i--) {
var v = _.get(this.context[i], str);
if (v !== undefined) return v;
}
}
return '';
},
init: function(ctx){
this.context = ctx;
push: function(ctx) {
return this.context.push(ctx);
},
merge: function(ctx){
_.merge(this.context, ctx);
pop: function() {
return this.context.pop();
}
};
exports.factory = function(_ctx){
exports.factory = function(_ctx) {
var ctx = Object.create(context);
ctx.init(_ctx);
ctx.context = [_ctx];
return ctx;
};