Check loading from module and interface

Author: ApolloZhu

test/Macros/macro_default_argument_library.swift

@@ -0,0 +1,20 @@
+// REQUIRES: swift_swift_parser
+
+// RUN: %empty-directory(%t)
+
+// RUN: %host-build-swift -swift-version 5 -emit-library -o %t/%target-library-name(MacroDefinition) -module-name=MacroDefinition %S/Inputs/syntax_macro_definitions.swift -g -no-toolchain-stdlib-rpath
+
+// RUN: %target-swift-emit-module-interface(%t.swiftinterface) %s -module-name CheckInterface -load-plugin-library %t/%target-library-name(MacroDefinition) -enable-experimental-feature ExpressionMacroDefaultArguments -I %t
+// RUN: %target-swift-typecheck-module-from-interface(%t.swiftinterface) -module-name CheckInterface -load-plugin-library %t/%target-library-name(MacroDefinition) -I %t
+
+// RUN: %FileCheck %s < %t.swiftinterface
+
+@freestanding(expression)
+public macro stringify<T>(_ value: T) -> (T, String) = #externalMacro(
+    module: "MacroDefinition", type: "StringifyMacro"
+)
+
+// CHECK: public func foo(param: (Swift.String, Swift.String) = #stringify(#fileID))
+public func foo(param: (String, String) = #stringify(#fileID)) {
+    print(param)
+}

test/Macros/macro_default_argument_serialized.swift

@@ -0,0 +1,17 @@
+// REQUIRES: swift_swift_parser
+// REQUIRES: 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/syntax_macro_definitions.swift -g -no-toolchain-stdlib-rpath
+
+// RUN: %target-build-swift-dylib(%t/%target-library-name(Serialized)) %S/macro_default_argument_library.swift -module-name Serialized -emit-module -emit-module-path %t/Serialized.swiftmodule -load-plugin-library %t/%target-library-name(MacroDefinition) -enable-experimental-feature ExpressionMacroDefaultArguments -I %t -swift-version 5
+
+// RUN: %target-build-swift -enable-experimental-feature ExpressionMacroDefaultArguments -swift-version 5 -load-plugin-library %t/%target-library-name(MacroDefinition) %s -o %t/main -module-name MacroUser -emit-tbd -emit-tbd-path %t/MacroUser.tbd -I %t -L %t %target-rpath(%t) -lSerialized
+// RUN: %target-codesign %t/main
+// RUN: %target-run %t/main | %FileCheck %s
+
+import Serialized
+
+// CHECK: ("MacroUser/macro_default_argument_serialized.swift", "#fileID")
+print(foo())

test/Macros/macro_default_argument_swiftinterface.swift

@@ -0,0 +1,17 @@
+// REQUIRES: swift_swift_parser
+// REQUIRES: 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/syntax_macro_definitions.swift -g -no-toolchain-stdlib-rpath
+
+// RUN: %target-build-swift-dylib(%t/%target-library-name(Interface)) %S/macro_default_argument_library.swift -module-name Interface -enable-library-evolution -emit-module-interface-path %t/Interface.swiftinterface -load-plugin-library %t/%target-library-name(MacroDefinition) -enable-experimental-feature ExpressionMacroDefaultArguments -I %t -swift-version 5
+
+// RUN: %target-build-swift -enable-experimental-feature ExpressionMacroDefaultArguments -swift-version 5 -load-plugin-library %t/%target-library-name(MacroDefinition) %s -o %t/main -module-name MacroUser -emit-tbd -emit-tbd-path %t/MacroUser.tbd -I %t -L %t %target-rpath(%t) -lInterface
+// RUN: %target-codesign %t/main
+// RUN: %target-run %t/main | %FileCheck %s
+
+import Interface
+
+// CHECK: ("MacroUser/macro_default_argument_swiftinterface.swift", "#fileID")
+print(foo())