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Simplify Value::unfoldSoak momoization code (only a bit...)

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This commit is contained in:
Demian Ferreiro 2013-02-23 08:26:10 -03:00
parent 03cfe23493
commit 9ed804d9b1
2 changed files with 11 additions and 17 deletions
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20
lib/coffee-script/nodes.js
View file

@ -711,20 +711,17 @@
};
Value.prototype.unfoldSoak = function(o) {
var result,
var _ref2,
_this = this;
if (this.unfoldedSoak != null) {
return this.unfoldedSoak;
}
result = (function() {
var fst, i, ifn, prop, ref, snd, _i, _len, _ref2;
return (_ref2 = this.unfoldedSoak) != null ? _ref2 : this.unfoldedSoak = (function() {
var fst, i, ifn, prop, ref, snd, _i, _len, _ref3, _ref4;
if (ifn = _this.base.unfoldSoak(o)) {
Array.prototype.push.apply(ifn.body.properties, _this.properties);
(_ref3 = ifn.body.properties).push.apply(_ref3, _this.properties);
return ifn;
}
_ref2 = _this.properties;
for (i = _i = 0, _len = _ref2.length; _i < _len; i = ++_i) {
prop = _ref2[i];
_ref4 = _this.properties;
for (i = _i = 0, _len = _ref4.length; _i < _len; i = ++_i) {
prop = _ref4[i];
if (!prop.soak) {
continue;
}
@ -740,9 +737,8 @@
soak: true
});
}
return null;
return false;
})();
return this.unfoldedSoak = result || false;
};
return Value;

8
src/nodes.coffee
View file

@ -457,10 +457,9 @@ exports.Value = class Value extends Base
# Unfold a soak into an `If`: `a?.b` -> `a.b if a?`
unfoldSoak: (o) ->
return @unfoldedSoak if @unfoldedSoak?
result = do =>
@unfoldedSoak ?= do =>
if ifn = @base.unfoldSoak o
Array::push.apply ifn.body.properties, @properties
ifn.body.properties.push @properties...
return ifn
for prop, i in @properties when prop.soak
prop.soak = off
@ -471,8 +470,7 @@ exports.Value = class Value extends Base
fst = new Parens new Assign ref, fst
snd.base = ref
return new If new Existence(fst), snd, soak: on
null
@unfoldedSoak = result or no
no
#### Comment