03a4aa3d00
-Wfor-loop-analysis warnings for a for-loop with a condition variable. In such a case, the loop condition variable is modified on each iteration of the loop by definition. Original commit message: Rearrange condition handling so that semantic checks on a condition variable are performed before the other substatements of the construct are parsed, rather than deferring them until the end. This allows better error recovery from semantic errors in the condition, improves diagnostic order, and is a prerequisite for C++17 constexpr if. llvm-svn: 273600
109 lines
4.1 KiB
C++
109 lines
4.1 KiB
C++
// RUN: %clang_cc1 -verify -x c++ -std=c++98 %s
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// RUN: not %clang_cc1 -fdiagnostics-parseable-fixits -x c++ -std=c++98 %s 2>&1 | FileCheck %s
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struct S {
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int n;
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};
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struct T {
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T();
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T(S, S);
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int n;
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};
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struct U {
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~U();
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int n;
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};
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struct V {
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~V();
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};
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struct W : V {
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};
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struct X : U {
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};
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int F1();
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S F2();
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namespace N {
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void test() {
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// CHECK: fix-it:"{{.*}}":{35:9-35:11}:" = {}"
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S s1(); // expected-warning {{function declaration}} expected-note {{replace parentheses with an initializer}}
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// CHECK: fix-it:"{{.*}}":{39:9-39:10}:";"
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// CHECK: fix-it:"{{.*}}":{40:7-40:9}:" = {}"
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S s2, // expected-note {{change this ',' to a ';' to call 'F2'}}
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F2(); // expected-warning {{function declaration}} expected-note {{replace parentheses with an initializer}}
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// CHECK: fix-it:"{{.*}}":{44:9-44:11}:""
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// CHECK: fix-it:"{{.*}}":{45:9-45:11}:""
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T t1(), // expected-warning {{function declaration}} expected-note {{remove parentheses}}
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t2(); // expected-warning {{function declaration}} expected-note {{remove parentheses}}
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// Suggest parentheses only around the first argument.
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// CHECK: fix-it:"{{.*}}":{50:10-50:10}:"("
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// CHECK: fix-it:"{{.*}}":{50:13-50:13}:")"
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T t3(S(), S()); // expected-warning {{disambiguated as a function declaration}} expected-note {{add a pair of parentheses}}
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// Check fixit position for pathological case
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// CHECK: fix-it:"{{.*}}":{56:11-56:11}:"("
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// CHECK: fix-it:"{{.*}}":{56:20-56:20}:")"
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float k[1];
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int l(int(k[0])); // expected-warning {{disambiguated as a function declaration}} expected-note {{add a pair of parentheses}}
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// Don't emit warning and fixit because this must be a function declaration due to void return type.
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typedef void VO;
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VO m(int (*p)[4]);
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// Don't emit warning and fixit because direct initializer is not permitted here.
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if (int n(int())){} // expected-error {{function type is not allowed here}}
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// CHECK: fix-it:"{{.*}}":{66:8-66:10}:" = {}"
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U u(); // expected-warning {{function declaration}} expected-note {{replace parentheses with an initializer}}
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// CHECK: fix-it:"{{.*}}":{69:8-69:10}:""
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V v(); // expected-warning {{function declaration}} expected-note {{remove parentheses}}
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// CHECK: fix-it:"{{.*}}":{72:8-72:10}:""
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W w(); // expected-warning {{function declaration}} expected-note {{remove parentheses}}
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// TODO: Removing the parens here would not initialize U::n.
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// Maybe suggest an " = X()" initializer for this case?
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// Maybe suggest removing the parens anyway?
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X x(); // expected-warning {{function declaration}}
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// CHECK: fix-it:"{{.*}}":{80:11-80:13}:" = 0"
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int n1(); // expected-warning {{function declaration}} expected-note {{replace parentheses with an initializer}}
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// CHECK: fix-it:"{{.*}}":{84:11-84:12}:";"
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// CHECK: fix-it:"{{.*}}":{85:7-85:9}:" = 0"
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int n2, // expected-note {{change this ',' to a ';' to call 'F1'}}
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F1(); // expected-warning {{function declaration}} expected-note {{replace parentheses with an initializer}}
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// CHECK: fix-it:"{{.*}}":{88:13-88:15}:" = 0.0"
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double d(); // expected-warning {{function declaration}} expected-note {{replace parentheses with an initializer}}
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typedef void *Ptr;
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// CHECK: fix-it:"{{.*}}":{93:10-93:12}:" = 0"
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Ptr p(); // expected-warning {{function declaration}} expected-note {{replace parentheses with an initializer}}
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#define NULL 0
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// CHECK: fix-it:"{{.*}}":{97:10-97:12}:" = NULL"
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Ptr p(); // expected-warning {{function declaration}} expected-note {{replace parentheses with an initializer}}
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// CHECK: fix-it:"{{.*}}":{100:11-100:13}:" = false"
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bool b(); // expected-warning {{function declaration}} expected-note {{replace parentheses with an initializer}}
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// CHECK: fix-it:"{{.*}}":{103:11-103:13}:" = '\\0'"
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char c(); // expected-warning {{function declaration}} expected-note {{replace parentheses with an initializer}}
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// CHECK: fix-it:"{{.*}}":{106:15-106:17}:" = L'\\0'"
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wchar_t wc(); // expected-warning {{function declaration}} expected-note {{replace parentheses with an initializer}}
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}
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}
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