mirror of
https://github.com/apple/swift.git
synced 2026-06-20 15:42:51 +02:00
Doug Gregor
ae1e3d0865
The new library, swiftEmbeddedPlatformPOSIX, implements all of the _swift_XYZ functions needed to support Embedded Swift as shims on top of a POSIX system that provides posix_memalign, free, putchar, and so on. This offers an easier way to bridge between the prior ad hoc requirements of Embedded Swift and the newer platform abstraction layer. Part of rdar://164057124
53 lines
1.5 KiB
Swift
53 lines
1.5 KiB
Swift
// RUN: %empty-directory(%t)
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// RUN: %{python} %utils/split_file.py -o %t %s
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// RUN: %target-swift-frontend -enable-experimental-feature Extern -emit-module -o %t/MyModule.swiftmodule %t/MyModule.swift -enable-experimental-feature Embedded -parse-as-library
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// RUN: %target-swift-frontend -enable-experimental-feature Extern -c -I %t %t/Main.swift -enable-experimental-feature Embedded -o %t/a.o
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// RUN: %target-clang -x c -c %S/Inputs/print.c -o %t/print.o
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// RUN: %target-clang %target-clang-resource-dir-opt %t/a.o %t/print.o %target-embedded-posix-shim -o %t/a.out
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// RUN: %target-run %t/a.out | %FileCheck %s
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// REQUIRES: swift_in_compiler
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// REQUIRES: executable_test
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// REQUIRES: OS=macosx || OS=linux-gnu || OS=wasip1
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// REQUIRES: swift_feature_Embedded
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// REQUIRES: swift_feature_Extern
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// BEGIN MyModule.swift
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@_extern(c, "putchar")
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@discardableResult
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func putchar(_: CInt) -> CInt
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public func print(_ s: StaticString, terminator: StaticString = "\n") {
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var p = s.utf8Start
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while p.pointee != 0 {
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putchar(CInt(p.pointee))
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p += 1
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}
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p = terminator.utf8Start
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while p.pointee != 0 {
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putchar(CInt(p.pointee))
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p += 1
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}
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}
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@_extern(c, "print_long")
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func print_long(_: Int)
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public func print(_ n: Int, terminator: StaticString) {
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print_long(n)
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print("", terminator: terminator)
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}
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// BEGIN Main.swift
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import MyModule
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func test() {
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print("Hello world", terminator: "\n") // CHECK: Hello world
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print(42, terminator: "\n") // CHECK-NEXT: 42
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}
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test()
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