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fb6deeb984
Rather than sprinkle calls to DiagnoseUnusedExprResult() around in places where we want diagnostics, we now diagnose unused expression statements and full expressions in a more generic way when acting on the final expression statement. This results in more appropriate diagnostics for [[nodiscard]] where we were previously lacking them, such as when the body of a for loop is not a compound statement. This patch fixes PR39837. llvm-svn: 350404
19 lines
559 B
C
19 lines
559 B
C
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#define Outer(action) action
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void completeParam(int param) {
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;
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Outer(__extension__({ _Pragma("clang diagnostic push") }));
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param;
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}
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// RUN: %clang_cc1 -fsyntax-only -code-completion-at=%s:7:1 %s | FileCheck %s
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// CHECK: param : [#int#]param
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void completeParamPragmaError(int param) {
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Outer(__extension__({ _Pragma(2) })); // expected-error {{_Pragma takes a parenthesized string literal}}
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param; // expected-warning {{expression result unused}}
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}
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// RUN: %clang_cc1 -fsyntax-only -verify -code-completion-at=%s:16:1 %s | FileCheck %s
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