Files
swift-mirror/test/Interop/SwiftToCxx/generics/generic-function-execution.cpp
Becca Royal-Gordon da07ff577c [PrintAsClang] Warn about unstable decl order
PrintAsClang is supposed to emit declarations in the same order regardless of the compiler’s internal state, but we have repeatedly found that our current criteria are inadequate, resulting in non-functionality-affecting changes to generated header content. Add a diagnostic that’s emitted when this happens soliciting a bug report.

Since there *should* be no cases where the compiler fails to order declarations, this diagnostic is never actually emitted. Instead, we test this change by enabling `-verify` on nearly all PrintAsClang tests to make sure they are unaffected.

This did demonstrate a missing criterion that only mattered in C++ mode: extensions that varied only in their generic signature were not sorted stably. Add a sort criterion for this.
2025-02-14 21:41:36 -08:00

229 lines
6.3 KiB
C++

// RUN: %empty-directory(%t)
// RUN: %target-swift-frontend %S/generic-function-in-cxx.swift -module-name Functions -clang-header-expose-decls=all-public -typecheck -verify -emit-clang-header-path %t/functions.h
// RUN: %target-interop-build-clangxx -std=gnu++20 -c %s -I %t -o %t/swift-functions-execution.o
// RUN: %target-interop-build-swift %S/generic-function-in-cxx.swift -o %t/swift-functions-execution -Xlinker %t/swift-functions-execution.o -module-name Functions -Xfrontend -entry-point-function-name -Xfrontend swiftMain
// RUN: %target-codesign %t/swift-functions-execution
// RUN: %target-run %t/swift-functions-execution | %FileCheck %s
// REQUIRES: executable_test
#include <cassert>
#include "functions.h"
int main() {
using namespace Functions;
static_assert(noexcept(genericPrintFunctionTwoArg<int>(0, 0)), "noexcept function");
{
int i = 2;
genericPrintFunctionTwoArg(i, 3);
// CHECK: X: 2
// CHECK-NEXT: Y: 3
}
{
int8_t x = -1;
genericPrintFunction(x);
// CHECK-NEXT: Int8 value=-1
}
{
uint8_t x = 0xff;
genericPrintFunction(x);
// CHECK-NEXT: UInt8 value=255
}
{
int16_t x = -9856;
genericPrintFunction(x);
// CHECK-NEXT: Int16 value=-9856
}
{
uint16_t x = 3248;
genericPrintFunction(x);
// CHECK-NEXT: UInt16 value=3248
}
{
int32_t x = -0x12343;
genericPrintFunction(x);
// CHECK-NEXT: Int32 value=-74563
}
{
uint32_t x = 0xC0011334;
genericPrintFunction(x);
// CHECK-NEXT: UInt32 value=3221295924
}
{
int64_t x = -123456789123;
genericPrintFunction(x);
// CHECK-NEXT: Int64 value=-123456789123
}
{
uint64_t x = 0x12345678abcd1234;
genericPrintFunction(x);
// CHECK-NEXT: UInt64 value=1311768467750064692
}
{
float x = -54.0f;
genericPrintFunction(x);
// CHECK-NEXT: Float value=-54.0
}
{
double x = 1.25;
genericPrintFunction(x);
// CHECK-NEXT: Double value=1.25
}
{
bool x = true;
genericPrintFunction(x);
// CHECK-NEXT: Bool value=true
}
{
int i = 0;
void *x = &i;
genericPrintFunction(x);
// CHECK-NEXT: OpaquePointer value
}
{
int i = 55;
int j = 66;
bool x = false;
genericPrintFunctionMultiGeneric<int, bool>(-78, i, j, 45, x);
// CHECK-NEXT: Int32 value 1=55
// CHECK-NEXT: Int32 value 2=66
// CHECK-NEXT: Bool value 1=false
// CHECK-NEXT: other values=-78,45
}
{
int x = 42;
int y = -13;
genericSwap(x, y);
assert(x == -13);
assert(y == 42);
}
{
int x = 4;
assert(genericRet(x) == 4);
}
{
double x = -19.75;
assert(genericRet(x) == -19.75);
}
{
auto tc = createTestClass();
genericPrintFunction(tc);
}
// CHECK-NEXT: TestClass value=Functions.TestClass
// CHECK-NEXT: deinit TestClass
{
auto tc = createTestClass();
auto tc2 = genericRet(tc);
assert(swift::_impl::_impl_RefCountedClass::getOpaquePointer(tc) ==
swift::_impl::_impl_RefCountedClass::getOpaquePointer(tc2));
genericPrintFunction(tc2);
}
// CHECK-NEXT: TestClass value=Functions.TestClass
// CHECK-NEXT: deinit TestClass
{
auto tc = createTestClass();
auto tc2 = createTestClass();
const auto p1 = swift::_impl::_impl_RefCountedClass::getOpaquePointer(tc);
const auto p2 = swift::_impl::_impl_RefCountedClass::getOpaquePointer(tc2);
assert(p1 != p2);
genericSwap(tc, tc2);
assert(p2 == swift::_impl::_impl_RefCountedClass::getOpaquePointer(tc));
assert(p1 == swift::_impl::_impl_RefCountedClass::getOpaquePointer(tc2));
}
// CHECK-NEXT: deinit TestClass
// CHECK-NEXT: deinit TestClass
{
auto x = createTestLargeStruct(0);
genericPrintFunction(x);
}
// CHECK-NEXT: TestLargeStruct value=TestLargeStruct(x1: 0, x2: 1, x3: -1, x4: 0, x5: 2, x6: -2)
{
auto x = createTestLargeStruct(11);
auto y = createTestLargeStruct(-9);
genericPrintFunction(x);
genericPrintFunction(y);
genericSwap(x, y);
genericPrintFunction(x);
genericPrintFunction(y);
auto xy = genericRet(x);
genericPrintFunction(xy);
xy.mut();
genericPrintFunction(xy);
genericPrintFunction(x);
}
// CHECK-NEXT: TestLargeStruct value=TestLargeStruct(x1: 11, x2: 12, x3: 10, x4: 11, x5: 13, x6: 9)
// CHECK-NEXT: TestLargeStruct value=TestLargeStruct(x1: -9, x2: -8, x3: -10, x4: -9, x5: -7, x6: -11)
// CHECK-NEXT: TestLargeStruct value=TestLargeStruct(x1: -9, x2: -8, x3: -10, x4: -9, x5: -7, x6: -11)
// CHECK-NEXT: TestLargeStruct value=TestLargeStruct(x1: 11, x2: 12, x3: 10, x4: 11, x5: 13, x6: 9)
// CHECK-NEXT: TestLargeStruct value=TestLargeStruct(x1: -9, x2: -8, x3: -10, x4: -9, x5: -7, x6: -11)
// CHECK-NEXT: TestLargeStruct value=TestLargeStruct(x1: 9, x2: -8, x3: -10, x4: -9, x5: -7, x6: -7)
// CHECK-NEXT: TestLargeStruct value=TestLargeStruct(x1: -9, x2: -8, x3: -10, x4: -9, x5: -7, x6: -11)
{
auto x = createTestSmallStruct(45);
auto y = createTestSmallStruct(0xFed1);
genericPrintFunction(x);
genericPrintFunction(y);
genericSwap(y, x);
genericPrintFunction(x);
genericPrintFunction(y);
auto xy = genericRet(x);
genericPrintFunction(xy);
xy.mut();
genericPrintFunction(xy);
genericPrintFunction(x);
}
// CHECK-NEXT: TestSmallStruct value=TestSmallStruct(x1: 45)
// CHECK-NEXT: TestSmallStruct value=TestSmallStruct(x1: 65233)
// CHECK-NEXT: TestSmallStruct value=TestSmallStruct(x1: 65233)
// CHECK-NEXT: TestSmallStruct value=TestSmallStruct(x1: 45)
// CHECK-NEXT: TestSmallStruct value=TestSmallStruct(x1: 65233)
// CHECK-NEXT: TestSmallStruct value=TestSmallStruct(x1: 4294902062)
// CHECK-NEXT: TestSmallStruct value=TestSmallStruct(x1: 65233)
{
auto x = createTestSmallStruct(42);
int passThru = x.genericMethodPassThrough((int)555);
assert(passThru == 555);
auto xprime = x.genericMethodPassThrough(x);
genericPrintFunction(xprime);
x.genericMethodMutTake((uint32_t)16);
genericPrintFunction(xprime);
genericPrintFunction(x);
x.genericMethodMutTake(xprime);
genericPrintFunction(xprime);
genericPrintFunction(x);
}
// CHECK-NEXT: TestSmallStruct value=TestSmallStruct(x1: 42)
// CHECK-NEXT: TestSmallStruct value=TestSmallStruct(x1: 42)
// CHECK-NEXT: TestSmallStruct value=TestSmallStruct(x1: 58)
// CHECK-NEXT: TestSmallStruct value=TestSmallStruct(x1: 42)
// CHECK-NEXT: TestSmallStruct value=TestSmallStruct(x1: 57)
return 0;
}