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// RUN: %empty-directory(%t)
// RUN: split-file %s %t
// RUN: %target-swift-frontend -typecheck %t/use-array.swift -typecheck -module-name UseArray -enable-experimental-cxx-interop -emit-clang-header-path %t/UseArray.h
// RUN: %target-interop-build-clangxx -fno-exceptions -std=gnu++20 -c %t/array-execution.cpp -I %t -o %t/swift-stdlib-execution.o
// RUN: %target-build-swift %t/use-array.swift -o %t/swift-stdlib-execution -Xlinker %t/swift-stdlib-execution.o -module-name UseArray -Xfrontend -entry-point-function-name -Xfrontend swiftMain
// RUN: %target-codesign %t/swift-stdlib-execution
// RUN: %target-run %t/swift-stdlib-execution | %FileCheck %s
// REQUIRES: executable_test
//--- use-array.swift
@_expose(Cxx)
public func createArray(_ val: CInt) -> [CInt] {
return [val, val]
}
@_expose(Cxx)
public func passthroughArray(_ val: [CInt]) -> Array<CInt> {
return val
}
@_expose(Cxx)
public func printArray(_ val: Array<CInt>) {
print(val)
}
public func printStrings(_ strings: [String]) {
for s in strings {
print("GOT STRING '\(s)'")
}
print("DONE PRINTING.")
}
//--- array-execution.cpp
#include <cassert>
#include "UseArray.h"
int main() {
using namespace swift;
{
Array<int> val = UseArray::createArray(2);
UseArray::printArray(UseArray::passthroughArray(val));
int count = 2;
for (int x: val) {
assert(x == 2);
--count;
}
assert(count == 0);
}
// CHECK: [2, 2]
{
auto val = Array<int>::init();
val.append(-11);
UseArray::printArray(val);
assert(val.getCount() == 1);
assert(val.getCapacity() >= 1);
auto zeroInt = val[0];
assert(zeroInt == -11);
auto firstInt = val.removeAt(0);
assert(firstInt == -11);
assert(val.getCount() == 0);
UseArray::printArray(val);
}
// CHECK-NEXT: [-11]
// CHECK-NEXT: []
{
auto array = swift::Array<swift::String>::init();
array.append("123456789ABCDEFG");
UseArray::printStrings(array);
}
// CHECK-NEXT: GOT STRING '123456789ABCDEFG'
// CHECK-NEXT: DONE PRINTING
return 0;
}
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