File: macro_expand_variadic.swift

package info (click to toggle)
swiftlang 6.0.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 2,519,992 kB
  • sloc: cpp: 9,107,863; ansic: 2,040,022; asm: 1,135,751; python: 296,500; objc: 82,456; f90: 60,502; lisp: 34,951; pascal: 19,946; sh: 18,133; perl: 7,482; ml: 4,937; javascript: 4,117; makefile: 3,840; awk: 3,535; xml: 914; fortran: 619; cs: 573; ruby: 573
file content (35 lines) | stat: -rw-r--r-- 1,380 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
// REQUIRES: swift_swift_parser, executable_test

// RUN: %empty-directory(%t)
// RUN: %host-build-swift -swift-version 5 -emit-library -o %t/%target-library-name(MacroDefinition) -module-name=MacroDefinition %S/Inputs/variadic_macros.swift -g -no-toolchain-stdlib-rpath
// RUN: %target-typecheck-verify-swift -disable-availability-checking -swift-version 5 -load-plugin-library %t/%target-library-name(MacroDefinition) -module-name MacroUser -DTEST_DIAGNOSTICS -swift-version 5
// RUN: %target-build-swift -Xfrontend -disable-availability-checking -swift-version 5 -load-plugin-library %t/%target-library-name(MacroDefinition) %s -o %t/main -module-name MacroUser -swift-version 5
// RUN: %target-codesign %t/main
// RUN: %target-run %t/main | %FileCheck %s

@freestanding(expression) macro print<each Value>(_ value: repeat each Value) = #externalMacro(module: "MacroDefinition", type: "PrintMacro")

@freestanding(expression) macro Print<each Value>(_ value: repeat each Value) = #externalMacro(module: "MacroDefinition", type: "PrintMacro")

struct Print<each Value> {
  init() {}
}

func testAmbiguity() {
  let _ = Print<Int>()
}

func testIt() {
  // CHECK: hello
  // CHECK: [1, 2, 3, 4, 5]
  #print("hello", [1, 2, 3, 4, 5])

  // CHECK: hello
  // CHECK: [1, 2, 3, 4, 5]
  #print<String, [Int]>("hello", [1, 2, 3, 4, 5])

  // CHECK: world
  #print("world")
}

testIt()