derek.holloway
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77 lines
3.1 KiB
C++
77 lines
3.1 KiB
C++
// RUN: %clang_cc1 -fsyntax-only -verify %s
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struct A { // #A
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};
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struct B {
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struct C{}; // #B_C
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enum E{};
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};
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namespace NS {
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struct D{};
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}
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enum E {}; // #E
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typedef int T;
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using U = int;
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// Basic sanity check on the original fuzzing generated syntax
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template <class T = U struct B::C> void test_template();
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// expected-error@-1{{cannot combine with previous 'type-name' declaration specifier}}
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// The bug we're looking at is the result of parsing repeated named type
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// specifiers. All the record types actually go through a single path, so
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// we don't repeat all of them. The first few are a basic sanity check of
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// each one anyway
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A struct B::C test01;
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// expected-error@-1 {{cannot combine with previous 'type-name' declaration specifier}}
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A union B::C test02;
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// expected-error@-1 {{cannot combine with previous 'type-name' declaration specifier}}
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// expected-error@-2 {{use of 'C' with tag type that does not match previous declaration}}
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// expected-note@#B_C {{previous use is here}}
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A class B::C test03;
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// expected-error@-1 {{cannot combine with previous 'type-name' declaration specifier}}
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A struct NS::D test04;
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// expected-error@-1 {{cannot combine with previous 'type-name' declaration specifier}}
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A struct ::A test05;
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// expected-error@-1 {{cannot combine with previous 'type-name' declaration specifier}}
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T struct B::C test06;
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// expected-error@-1 {{cannot combine with previous 'type-name' declaration specifier}}
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U struct B::C test07;
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// expected-error@-1 {{cannot combine with previous 'type-name' declaration specifier}}
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// enums _do_ need separate testing as they have a different syntax, and so
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// take a different path through the parser
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E struct B::C test08;
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// expected-error@-1 {{cannot combine with previous 'type-name' declaration specifier}}
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A enum ::A test09;
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// expected-error@-1 {{use of 'A' with tag type that does not match previous declaration}}
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// expected-note@#A {{previous use is here}}
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A enum ::E test10;
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// expected-error@-1 {{cannot combine with previous 'type-name' declaration specifier}}
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E enum B::E test11;
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// expected-error@-1 {{cannot combine with previous 'type-name' declaration specifier}}
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E enum ::E test12;
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// expected-error@-1 {{cannot combine with previous 'type-name' declaration specifier}}
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T enum ::E test13;
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// expected-error@-1 {{cannot combine with previous 'type-name' declaration specifier}}
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E struct ::E test14;
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// expected-error@-1 {{use of 'E' with tag type that does not match previous declaration}}
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// expected-note@#E {{previous use is here}}
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// These cases also _technically_ go wrong, but when the initial type specifier
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// is namespaced, we get the required info from the parser directly, which avoids
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// the reading from the corrupted scope
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B::C struct ::B test15;
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// expected-error@-1 {{cannot combine with previous 'type-name' declaration specifier}}
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B::C struct B::C test16;
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// expected-error@-1 {{cannot combine with previous 'type-name' declaration specifier}}
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B::C struct NS::D test17;
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// expected-error@-1 {{cannot combine with previous 'type-name' declaration specifier}}
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using Test18 = A struct ::A;
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// expected-error@-1 {{cannot combine with previous 'type-name' declaration specifier}}
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