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annotate clang/test/SemaObjC/method-warn-unused-attribute.m @ 207:2e18cbf3894f

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LLVM12
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Tue, 08 Jun 2021 06:07:14 +0900
parents 1d019706d866
children
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1 // RUN: %clang_cc1 -fsyntax-only -Wunused-value -verify %s
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2
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3 @interface INTF
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4 - (id) foo __attribute__((warn_unused_result));
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5 - (void) garf __attribute__((warn_unused_result)); // expected-warning {{attribute 'warn_unused_result' cannot be applied to Objective-C method without return value}}
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6 - (int) fee __attribute__((warn_unused_result));
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7 + (int) c __attribute__((warn_unused_result));
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8 @end
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9
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10 void foo(INTF *a) {
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11 [a garf];
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12 [a fee]; // expected-warning {{ignoring return value of function declared with 'warn_unused_result' attribute}}
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13 [INTF c]; // expected-warning {{ignoring return value of function declared with 'warn_unused_result' attribute}}
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14 }
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