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adding existence soaks for indexed-lookup property accesses: obj?['property']

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This commit is contained in:
Jeremy Ashkenas
2010-02-24 00:06:01 -05:00
parent 4eeb8c4bd2
commit 10d335ccb1
10 changed files with 111 additions and 83 deletions
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9
src/nodes.coffee
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@@ -283,7 +283,7 @@ ValueNode: exports.ValueNode: inherit Node, {
for prop in props
@source: baseline
if prop instanceof AccessorNode and prop.soak
if prop.soak_node
soaked: true
if @base instanceof CallNode and prop is props[0]
temp: o.scope.free_variable()
@@ -405,7 +405,7 @@ AccessorNode: exports.AccessorNode: inherit Node, {
constructor: (name, tag) ->
@children: [@name: name]
@prototype: tag is 'prototype'
@soak: tag is 'soak'
@soak_node: tag is 'soak'
this
compile_node: (o) ->
@@ -417,8 +417,9 @@ AccessorNode: exports.AccessorNode: inherit Node, {
IndexNode: exports.IndexNode: inherit Node, {
type: 'Index'
constructor: (index) ->
@children: [@index: index]
constructor: (index, tag) ->
@children: [@index: index]
@soak_node: tag is 'soak'
this
compile_node: (o) ->