cb424d7448
verify-patch-sanity.py validates every active recipe .patch has internally- consistent hunk line counts — catching the 'malformed patch at line N' failure at commit/CI/preflight time instead of hours into a cook. This cycle hit that class three times (qtwaylandscanner, sddm, xwayland), each only discovered when cookbook tried to apply the patch. Running it across the repo found 29 latent malformed patches (validated against GNU patch: e.g. relibc/P3-sysv-ipc reproduces 'malformed patch at line 22'). They were harmless only because they sit in vendored recipes (baked, not re- applied) — but would fail on any version-bump re-derivation. --fix recounts the hunk headers (body untouched) and repaired all 29. Wired into build-preflight.sh (Phase 1.0D) and redbear-ci.yml, with a unit test (test-patch-sanity.sh). Skips archived/legacy trees and unvalidatable formats (empty placeholders, bare-@@ git hunks).
148 lines
3.2 KiB
C++
148 lines
3.2 KiB
C++
// RUN: %clang_cc1 -fsyntax-only -verify -std=c++26 %s
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namespace t1 {
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template<int N> struct A {
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template<class C> friend auto cica(const A<N-1>&, C) {
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return N;
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}
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};
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template<> struct A<0> {
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template<class C> friend auto cica(const A<0>&, C);
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// expected-note@-1 {{declared here}}
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};
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void test() {
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cica(A<0>{}, 0);
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// expected-error@-1 {{function 'cica<int>' with deduced return type cannot be used before it is defined}}
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(void)A<1>{};
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cica(A<0>{}, 0);
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}
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} // namespace t1
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namespace t2 {
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template<int N> struct A {
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template<class C> friend auto cica(const A<N-1>&, C) {
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return N;
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}
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};
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template<> struct A<0> {
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template<class C> friend auto cica(const A<0>&, C);
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};
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template <int N, class = decltype(cica(A<N>{}, nullptr))>
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void MakeCica();
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// expected-note@-1 {{candidate function}}
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template <int N> void MakeCica(A<N+1> = {});
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// expected-note@-1 {{candidate function}}
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void test() {
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MakeCica<0>();
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MakeCica<0>();
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// expected-error@-1 {{call to 'MakeCica' is ambiguous}}
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}
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} // namespace t2
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namespace t3 {
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template<int N> struct A {
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template<class C> friend auto cica(const A<N-1>&, C) {
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return N-1;
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}
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};
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template<> struct A<0> {
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template<class C> friend auto cica(const A<0>&, C);
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};
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template <int N, class AT, class = decltype(cica(AT{}, nullptr))>
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static constexpr bool MakeCica(int);
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template <int N, class AT>
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static constexpr bool MakeCica(short, A<N+1> = {});
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template <int N, class AT = A<N>, class Val = decltype(MakeCica<N, AT>(0))>
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static constexpr bool has_cica = Val{};
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constexpr bool cica2 = has_cica<0> || has_cica<0>;
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} // namespace t3
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namespace t4 {
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template<int N> struct A {
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template<class C> friend auto cica(const A<N-1>&, C);
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};
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template<> struct A<0> {
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template<class C> friend auto cica(const A<0>&, C) {
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C a;
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}
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};
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template struct A<1>;
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void test() {
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cica(A<0>{}, 0);
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}
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} // namespace t4
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namespace regression1 {
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template <class> class A;
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template <class T> [[gnu::abi_tag("TAG")]] void foo(A<T>);
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template <class> struct A {
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friend void foo <>(A);
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};
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template struct A<int>;
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template <class T> [[gnu::abi_tag("TAG")]] void foo(A<T>) {}
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template void foo<int>(A<int>);
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} // namespace regression1
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namespace regression2 {
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template <class> struct A {
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template <class T> static void f() {
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A<int>::f<T>();
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}
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};
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template <> template <class T> void A<int>::f() {
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static_assert(__is_same(T, long));
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}
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template void A<void>::f<long>();
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} // namespace regression2
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namespace GH139226 {
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struct FakeStream {};
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template <typename T>
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class BinaryTree;
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template <typename T>
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FakeStream& operator<<(FakeStream& os, BinaryTree<T>& b);
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template <typename T>
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FakeStream& operator>>(FakeStream& os, BinaryTree<T>& b) {
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return os;
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}
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template <typename T>
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struct BinaryTree {
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T* root{};
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friend FakeStream& operator<< <T>(FakeStream& os, BinaryTree&) {
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// expected-error@-1 {{friend function specialization cannot be defined}}
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return os;
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}
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friend FakeStream& operator>> <T>(FakeStream& os, BinaryTree&);
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};
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void foo() {
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FakeStream fakeout;
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BinaryTree<int> a{};
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fakeout << a;
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fakeout >> a;
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}
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}
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