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#1643: Tag subpatterns in Assign#compilePatternMatch to prevent appending reference to RHS

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This commit is contained in:
Gerald Lewis 2011-09-09 18:58:59 -04:00
parent 6d0ba4b3bd
commit 03372c9b29
1 changed files with 3 additions and 2 deletions
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5
src/nodes.coffee
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@ -918,6 +918,7 @@ exports.Class = class Class extends Base
exports.Assign = class Assign extends Base exports.Assign = class Assign extends Base
constructor: (@variable, @value, @context, options) -> constructor: (@variable, @value, @context, options) ->
@param = options and options.param @param = options and options.param
@subpattern = options and options.subpattern
children: ['variable', 'value'] children: ['variable', 'value']
@ -1032,8 +1033,8 @@ exports.Assign = class Assign extends Base
val = new Value new Literal(vvar), [new (if acc then Access else Index) idx] val = new Value new Literal(vvar), [new (if acc then Access else Index) idx]
if name? and name in ['arguments','eval'].concat RESERVED if name? and name in ['arguments','eval'].concat RESERVED
throw new SyntaxError "assignment to a reserved word: #{obj.compile o} = #{val.compile o}" throw new SyntaxError "assignment to a reserved word: #{obj.compile o} = #{val.compile o}"
assigns.push new Assign(obj, val, null, param: @param).compile o, LEVEL_LIST assigns.push new Assign(obj, val, null, param: @param, subpattern: yes).compile o, LEVEL_LIST
assigns.push vvar unless top assigns.push vvar unless top or @subpattern
code = assigns.join ', ' code = assigns.join ', '
if o.level < LEVEL_LIST then code else "(#{code})" if o.level < LEVEL_LIST then code else "(#{code})"