Files
swift-mirror/test/embedded/array-to-pointer.swift
Max Desiatov a636a12aa1 test/embedded: Enable more tests for Wasm
Before:

```
Total Discovered Tests: 255
  Unsupported      : 100 (39.22%)
  Passed           : 154 (60.39%)
  Expectedly Failed:   1 (0.39%)
```

After:

```
Total Discovered Tests: 255
  Unsupported      :  41 (16.08%)
  Passed           : 210 (82.35%)
  Expectedly Failed:   4 (1.57%)
```

Work in progress on https://github.com/swiftlang/swift/issues/83482.

rdar://157304207
2026-01-19 17:24:54 +00:00

78 lines
2.0 KiB
Swift

// RUN: %empty-directory(%t)
// RUN: %target-swift-frontend %s -enable-experimental-feature Extern -enable-experimental-feature Embedded -c -o %t/main.o
// RUN: %target-clang -x c -c %S/Inputs/print.c -o %t/print.o
// RUN: %target-clang %target-clang-resource-dir-opt %t/main.o %t/print.o -o %t/a.out -dead_strip
// RUN: %target-run %t/a.out | %FileCheck %s
// REQUIRES: swift_in_compiler
// REQUIRES: executable_test
// REQUIRES: optimized_stdlib
// REQUIRES: OS=macosx || OS=linux-gnu || OS=wasip1
// REQUIRES: swift_feature_Embedded
// REQUIRES: swift_feature_Extern
@_extern(c, "putchar")
@discardableResult
func putchar(_: CInt) -> CInt
public func print(_ s: StaticString, terminator: StaticString = "\n") {
var p = s.utf8Start
while p.pointee != 0 {
putchar(CInt(p.pointee))
p += 1
}
p = terminator.utf8Start
while p.pointee != 0 {
putchar(CInt(p.pointee))
p += 1
}
}
@_extern(c, "print_long")
func print_long(_: Int)
public func print(_ n: Int, terminator: StaticString = "\n") {
print_long(n)
print("", terminator: terminator)
}
func print(_ array: [Int]) {
print("[", terminator: "")
for i in 0 ..< array.count {
print_long(array[i])
if i != array.count - 1 { print(", ", terminator: "") }
}
print("]")
}
@_extern(c, "memcmp")
func memcmp(_: UnsafeRawPointer, _: UnsafeRawPointer, _: Int) -> CInt
@_extern(c, "memcpy")
func memcpy(_: UnsafeMutableRawPointer, _: UnsafeRawPointer, _: Int) -> UnsafeRawPointer
func test() {
print("Calling memcmp")
// CHECK: Calling memcmp
// const arrays
print(Int(memcmp([1, 2, 3], [1, 2, 3], MemoryLayout<Int>.size * 3)))
print(Int(memcmp([1, 2, 3], [1, 2, 4], MemoryLayout<Int>.size * 3)))
// CHECK-NEXT: 0
// CHECK-NEXT: 1
let a1 = [1, 2, 3]
let a2 = [1, 2, 4]
print(Int(memcmp(a1, a2, MemoryLayout<Int>.size * 3)))
// CHECK-NEXT: 1
// mutable array
var arr = [1, 2, 3, 4, 5]
var int42 = 42
memcpy(&arr, &int42, MemoryLayout<Int>.size)
print(arr)
// CHECK-NEXT: [42, 2, 3, 4, 5]
}
test()