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using underscore's clone() for code generation

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Jeremy Ashkenas
2010-02-13 02:32:17 -05:00
parent 2c4c4cc93e
commit 8c077f0f65
2 changed files with 7 additions and 38 deletions
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30
lib/coffee_script/nodes.js
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@@ -1,5 +1,5 @@
(function(){
var AccessorNode, ArrayNode, AssignNode, CallNode, ClosureNode, CodeNode, CommentNode, ExistenceNode, Expressions, ExtendsNode, ForNode, IDENTIFIER, IfNode, IndexNode, LiteralNode, Node, ObjectNode, OpNode, ParentheticalNode, PushNode, RangeNode, ReturnNode, SliceNode, SplatNode, TAB, TRAILING_WHITESPACE, ThisNode, ThrowNode, TryNode, ValueNode, WhileNode, _, del, dup, flatten, inherit, merge, statement;
var AccessorNode, ArrayNode, AssignNode, CallNode, ClosureNode, CodeNode, CommentNode, ExistenceNode, Expressions, ExtendsNode, ForNode, IDENTIFIER, IfNode, IndexNode, LiteralNode, Node, ObjectNode, OpNode, ParentheticalNode, PushNode, RangeNode, ReturnNode, SliceNode, SplatNode, TAB, TRAILING_WHITESPACE, ThisNode, ThrowNode, TryNode, ValueNode, WhileNode, _, del, flatten, inherit, merge, statement;
var __hasProp = Object.prototype.hasOwnProperty;
process.mixin(require('./scope'));
_ = require('./underscore')._;
@@ -24,28 +24,6 @@
}
return memo;
};
// Dup an array or object.
dup = function dup(input) {
var __a, __b, __c, __d, key, output, val;
if (input instanceof Array) {
__a = []; __b = input;
for (__c = 0; __c < __b.length; __c++) {
val = __b[__c];
__a.push(val);
}
return __a;
} else {
output = {};
__d = input;
for (key in __d) {
val = __d[key];
if (__hasProp.call(__d, key)) {
((output[key] = val));
}
}
return output;
}
};
// Merge objects.
merge = function merge(src, dest) {
var __a, __b, fresh, key, val;
@@ -116,7 +94,7 @@
// already been asked to return the result.
Node.prototype.compile = function compile(o) {
var closure, top;
this.options = dup(o || {});
this.options = _.clone(o || {});
this.indent = o.indent;
top = this.top_sensitive() ? this.options.top : del(this.options, 'top');
closure = this.is_statement() && !this.is_statement_only() && !top && !this.options.returns && !(this instanceof CommentNode) && !this.contains(function(node) {
@@ -226,7 +204,7 @@
__a = []; __b = this.expressions;
for (__c = 0; __c < __b.length; __c++) {
node = __b[__c];
__a.push(this.compile_expression(node, dup(o)));
__a.push(this.compile_expression(node, _.clone(o)));
}
return __a;
}).call(this)).join("\n");
@@ -1257,7 +1235,7 @@
compile_statement: function compile_statement(o) {
var body, child, com_dent, cond_o, else_part, if_dent, if_part, prefix;
child = del(o, 'chain_child');
cond_o = dup(o);
cond_o = _.clone(o);
del(cond_o, 'returns');
o.indent = this.idt(1);
o.top = true;