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// 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 -enable-experimental-feature Macros \
// 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
// CHECK: ->(plugin:[[#PID1:]]) {"getCapability":{"capability":{"protocolVersion":[[#PROTOCOL_VERSION:]]}}}
// CHECK-NEXT: <-(plugin:[[#PID1]]) {"getCapabilityResult":{"capability":{"protocolVersion":1}}}
// CHECK-NEXT: ->(plugin:[[#PID1]]) {"expandFreestandingMacro":{"discriminator":"$s{{.+}}","lexicalContext":[{{.*}}],"macro":{"moduleName":"TestPlugin","name":"fooMacro","typeName":"FooMacro"},"macroRole":"expression","syntax":{"kind":"expression","location":{"column":19,"fileID":"MyApp/test.swift","fileName":"{{.+}}test.swift","line":7,"offset":[[#]]},"source":"#fooMacro(1)"}}}
// CHECK-NEXT: <-(plugin:[[#PID1]]) {"invalidResponse":{}}
// CHECK-NEXT: ->(plugin:[[#PID1]]) {"expandFreestandingMacro":{"discriminator":"$s{{.+}}","lexicalContext":[{{.*}}],"macro":{"moduleName":"TestPlugin","name":"fooMacro","typeName":"FooMacro"},"macroRole":"expression","syntax":{"kind":"expression","location":{"column":19,"fileID":"MyApp/test.swift","fileName":"{{.+}}test.swift","line":9,"offset":[[#]]},"source":"#fooMacro(2)"}}}
// ^ This messages causes the mock plugin exit because there's no matching expected message.
// CHECK: ->(plugin:[[#PID2:]]) {"getCapability":{"capability":{"protocolVersion":[[#PROTOCOL_VERSION]]}}}
// CHECK-NEXT: <-(plugin:[[#PID2]]) {"getCapabilityResult":{"capability":{"protocolVersion":1}}}
// CHECK-NEXT: ->(plugin:[[#PID2]]) {"expandFreestandingMacro":{"discriminator":"$s{{.+}}","lexicalContext":[{{.*}}],"macro":{"moduleName":"TestPlugin","name":"fooMacro","typeName":"FooMacro"},"macroRole":"expression","syntax":{"kind":"expression","location":{"column":19,"fileID":"MyApp/test.swift","fileName":"{{.+}}test.swift","line":11,"offset":[[#]]},"source":"#fooMacro(3)"}}}
// CHECK-NEXT: <-(plugin:[[#PID2:]]) {"expandFreestandingMacroResult":{"diagnostics":[],"expandedSource":"3.description"}}
//--- test.swift
@freestanding(expression) macro fooMacro(_: Any) -> String = #externalMacro(module: "TestPlugin", type: "FooMacro")
func test() {
// FIXME: Should be more user friendly message.
// FIXME: -module-abi-name ABI name is leaking.
let _: String = #fooMacro(1)
// expected-error @-1 {{typeMismatch(CompilerSwiftCompilerPluginMessageHandling.PluginToHostMessage}}
let _: String = #fooMacro(2)
// expected-error @-1 {{failed to receive result from plugin (from macro 'fooMacro')}}
let _: String = #fooMacro(3)
// ^ This should succeed.
}
//--- plugin.c
#include "swift-c/MockPlugin/MockPlugin.h"
MOCK_PLUGIN([
{
"expect": {"getCapability": {}},
"response": {"getCapabilityResult": {"capability": {"protocolVersion": 1}}}
},
{
"expect": {"expandFreestandingMacro": {
"macro": {"moduleName": "TestPlugin", "typeName": "FooMacro"},
"syntax": {"kind": "expression", "source": "#fooMacro(1)"}}},
"response": {"invalidResponse": {}}
},
{
"expect": {"getCapability": {}},
"response": {"getCapabilityResult": {"capability": {"protocolVersion": 1}}}
},
{
"expect": {"expandFreestandingMacro": {
"macro": {"moduleName": "TestPlugin", "typeName": "FooMacro"},
"syntax": {"kind": "expression", "source": "#fooMacro(3)"}}},
"response": {"expandFreestandingMacroResult": {"expandedSource": "3.description", "diagnostics": []}}
}
])
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