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Give the ternary a fixed precedence, parse '?' and ':' into SequenceExprs, and fold them into IfExprs as part of sequence folding. This allows assignment operators like '+=' to have precedence below the ternary as in C. Fixes <rdar://problem/13756211>. Swift SVN r4983
9 lines
450 B
Swift
9 lines
450 B
Swift
// RUN: %swift -parse -verify %s
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func unbalanced_question(a:Bool, b:Bool, c:Bool, d:Bool) {
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(a ? b) // expected-error{{expected ':' after '? ...' in ternary}}
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(a ? b : c ? d) // expected-error{{expected ':' after '? ...' in ternary}}
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(a ? b ? c : d) // expected-error{{expected ':' after '? ...' in ternary}}
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(a ? b ? c) // expected-error{{expected ':' after '? ...' in ternary}} // expected-error{{expected ':' after '? ...' in ternary}}
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}
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