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
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
|
// REQUIRES: swift_swift_parser
// RUN: %empty-directory(%t/src)
// RUN: %empty-directory(%t/plugins)
// RUN: %empty-directory(%t/plugins_local)
// RUN: split-file %s %t/src
//#-- Prepare the macro dylib plugin.
// RUN: %host-build-swift \
// RUN: -swift-version 5 \
// RUN: -emit-library -o %t/plugins/%target-library-name(MacroDefinition) \
// RUN: -module-name MacroDefinition \
// RUN: %t/src/MacroDefinition.float.swift \
// RUN: -g -no-toolchain-stdlib-rpath
//#-- Prepare the macro dylib plugin.
// RUN: %host-build-swift \
// RUN: -swift-version 5 \
// RUN: -emit-library -o %t/plugins_local/%target-library-name(MacroDefinition) \
// RUN: -module-name MacroDefinition \
// RUN: %t/src/MacroDefinition.int.swift \
// RUN: -g -no-toolchain-stdlib-rpath
//#-- Check '-load-plugin-library' takes precedence over '-plugin-path'.
// RUN: %target-swift-frontend -typecheck -verify -swift-version 5 \
// RUN: -load-plugin-library %t/plugins_local/%target-library-name(MacroDefinition) \
// RUN: -plugin-path %t/plugins \
// RUN: %t/src/test.swift
//#-- Different argument order changes the search order, hence fail.
// RUN: not %target-swift-frontend -typecheck -verify -swift-version 5 \
// RUN: -plugin-path %t/plugins \
// RUN: -load-plugin-library %t/plugins_local/%target-library-name(MacroDefinition) \
// RUN: %t/src/test.swift
//--- test.swift
@freestanding(expression) macro constInt() -> Int = #externalMacro(module: "MacroDefinition", type: "ConstMacro")
func foo() {
let _: Int = #constInt
// If 'MacroDefinition.float.swift' (in '-pluing-path') is loaded, type checking this fails because it expands to '4.2' which is a float literal.
}
//--- MacroDefinition.float.swift
import SwiftSyntax
import SwiftSyntaxBuilder
import SwiftSyntaxMacros
public struct ConstMacro: ExpressionMacro {
public static func expansion(
of macro: some FreestandingMacroExpansionSyntax,
in context: some MacroExpansionContext
) -> ExprSyntax {
return "4.2"
}
}
//--- MacroDefinition.int.swift
import SwiftSyntax
import SwiftSyntaxBuilder
import SwiftSyntaxMacros
public struct ConstMacro: ExpressionMacro {
public static func expansion(
of macro: some FreestandingMacroExpansionSyntax,
in context: some MacroExpansionContext
) -> ExprSyntax {
return "42"
}
}
|
