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added collision check for '_this' - #155
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'CaptureThis' is correct for all nodes
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Looks good |
Vladimir Matveev (vladima)
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Jul 21, 2014
added collision check for '_this'
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Deciding if
_thisin user code collides with_thisthat will be introduced in generated code required knowledge about arrow function that potentially reside in parts of the AST that are not yet examined. To avoid multiple tree traversals if node named_thisis found - we put it in the list of candidates and process items from this list after checking of all elements in file is finished - at this moment value ofNodeCheckFlags.CaptureThisis already set for all places that capture lexical this so collision check is relatively cheap.This fixes #64