Rintaro Ishizaki fedc36e4fb [IDE] Don't walk to ExplicitCast expr twice in ModelASTWalker ...

Explict cast expressions (i.e. 'as', 'as!`, 'as?', and 'is') appear twice in
'SequenceExpr'. For instance, 'a as B' is parsed as:
  (sequence_expr
    (unresolved_declref_expr name='a')
    (coerce_expr writtenType='B')
    (coerce_expr writtenType='B'))
This patch prevents ModelASTWalker from walking into them twice.

rdar://problem/43135727

2018-08-14 08:19:48 +09:00

52 KiB

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