Files
swift-mirror/test/Macros/macro_plugin_basic.swift
Doug Gregor 3082b04b75 [Macros] Feed the static build configuration into macro expansions
Thread the static build configuration (formed from language options) in
to the macro plugin handler, which will serialize it for use in the
macro implementation. test this with a simple macro that checks
whether a particular custom configuration (set via `-D`) is enabled or
not.

This required some re-layering, sinking the logic for building a
StaticBuildConfiguration from language options down into a new
swiftBasicSwift library, which sits on top of the C++ swiftBasic and
provides Swift functionality for it. That can be used by the C++
swiftAST to cache the StaticBuildConfiguration on the ASTContext,
making it available for other parts of ASTGen.
2025-09-29 18:42:15 -07:00

79 lines
4.1 KiB
Swift

// REQUIRES: swift_swift_parser
// RUN: %empty-directory(%t)
// RUN: split-file %s %t
// RUN: %swift-build-c-plugin -o %t/mock-plugin %t/plugin.c
// RUN: env SWIFT_DUMP_PLUGIN_MESSAGING=1 %target-swift-frontend \
// RUN: -typecheck -verify \
// RUN: -swift-version 5 \
// RUN: -load-plugin-executable %t/mock-plugin#TestPlugin \
// RUN: -module-name MyApp \
// RUN: %t/test.swift \
// RUN: > %t/macro-expansions.txt 2>&1
// RUN: %FileCheck -strict-whitespace %s < %t/macro-expansions.txt
// RUN: not %target-swift-frontend \
// RUN: -typecheck \
// RUN: -swift-version 5 \
// RUN: -load-plugin-executable %t/mock-plugin#TestPlugin \
// RUN: -Rmacro-loading \
// RUN: -module-name MyApp \
// RUN: %t/test.swift \
// RUN: > %t/macro-loading.txt 2>&1
// RUN: %FileCheck -check-prefix=DIAGS %s < %t/macro-loading.txt
// DIAGS: loaded macro implementation module 'TestPlugin' from executable
// CHECK: ->(plugin:[[#PID:]]) {"getCapability":{"capability":{"protocolVersion":[[#PROTOCOL_VERSION:]]}}}
// CHECK: <-(plugin:[[#PID]]) {"getCapabilityResult":{"capability":{"protocolVersion":1}}}
// CHECK: ->(plugin:[[#PID]]) {"expandFreestandingMacro":{"discriminator":"$s{{.+}}","lexicalContext":[{{.*}}func test{{.*}}],"macro":{"moduleName":"TestPlugin","name":"testString","typeName":"TestStringMacro"},"macroRole":"expression","staticBuildConfiguration"{{.*}},"syntax":{"kind":"expression","location":{"column":19,"fileID":"MyApp/test.swift","fileName":"{{.+}}test.swift","line":5,"offset":301},"source":"#testString(123)"}}}
// CHECK: <-(plugin:[[#PID]]) {"expandFreestandingMacroResult":{"diagnostics":[],"expandedSource":"\"123\"\n + \"foo \""}}
// CHECK: ->(plugin:[[#PID]]) {"expandFreestandingMacro":{"discriminator":"$s{{.+}}","lexicalContext":[{{.*}}],"macro":{"moduleName":"TestPlugin","name":"testStringWithError","typeName":"TestStringWithErrorMacro"},"macroRole":"expression","staticBuildConfiguration"{{.*}},"syntax":{"kind":"expression","location":{"column":19,"fileID":"MyApp/test.swift","fileName":"{{.+}}test.swift","line":6,"offset":336},"source":"#testStringWithError(321)"}}}
// CHECK: <-(plugin:[[#PID]]) {"expandFreestandingMacroResult":{"diagnostics":[{"fixIts":[],"highlights":[],"message":"message from plugin","notes":[],"position":{"fileName":"{{.*}}test.swift","offset":336},"severity":"error"}],"expandedSource":"\"bar\""}}
//--- test.swift
@freestanding(expression) macro testString(_: Any) -> String = #externalMacro(module: "TestPlugin", type: "TestStringMacro")
@freestanding(expression) macro testStringWithError(_: Any) -> String = #externalMacro(module: "TestPlugin", type: "TestStringWithErrorMacro")
func test() {
let _: String = #testString(123)
let _: String = #testStringWithError(321)
// expected-error @-1 {{message from plugin}}
}
//--- plugin.c
#include "swift-c/MockPlugin/MockPlugin.h"
MOCK_PLUGIN([
{
"expect": {"getCapability": {}},
"response": {"getCapabilityResult": {"capability": {"protocolVersion": 1}}}
},
{
"expect": {"expandFreestandingMacro": {
"macro": {"moduleName": "TestPlugin", "typeName": "TestStringMacro"},
"syntax": {"kind": "expression", "source": "#testString(123)"}}},
"response": {"expandFreestandingMacroResult": {"expandedSource": "\"123\"\n + \"foo \"", "diagnostics": []}}
},
{
"expect": {"expandFreestandingMacro": {
"macro": {"moduleName": "TestPlugin", "typeName": "TestStringWithErrorMacro"},
"syntax": {"kind": "expression", "source": "#testStringWithError(321)"}}},
"response": {"expandFreestandingMacroResult": {
"expandedSource": "\"bar\"",
"diagnostics": [
{"severity": "error",
"position": {"offset": "=req.expandFreestandingMacro.syntax.location.offset",
"fileName": "=req.expandFreestandingMacro.syntax.location.fileName"},
"message":"message from plugin",
"highlights": [],
"notes": [],
"fixIts": []}
]}}
}
])