Interpreter: Add @cdecl @implementation test variant

Author: xymus

test/Interpreter/cdecl_implementation_run.swift

@@ -0,0 +1,94 @@
+// RUN: %empty-directory(%t)
+// RUN: split-file %s %t --leading-lines
+
+/// Build Swift dylib and compatibility header.
+// RUN: %target-build-swift-dylib(%t/%target-library-name(Lib)) %t/Lib.swift \
+// RUN:   -emit-module-path %t/Lib.swiftmodule \
+// RUN:   -emit-clang-header-path %t/cdecl.h \
+// RUN:   -import-objc-header %t/BridgingHeader.h \
+// RUN:   -enable-experimental-feature CDecl \
+// RUN:   -enable-experimental-feature CImplementation
+// RUN: %target-codesign %t/%target-library-name(Lib)
+
+/// Build a C client against cdecl.h.
+// RUN: %clang-no-modules %t/Client.c -o %t/a.out \
+// RUN:   -I %clang-include-dir -Werror -isysroot %sdk \
+// RUN:   -I %t -l Lib -L %t %target-rpath(%t)
+// RUN: %target-codesign %t/a.out
+// RUN: %target-run %t/a.out > %t/run.log
+// RUN: %FileCheck %t/Client.c --check-prefix=PRINTS --input-file %t/run.log
+
+/// Build a Swift client against cdecl.h.
+// RUN: %target-build-swift %t/Client.swift -o %t/a.out \
+// RUN:   -I %t -l Lib -L %t %target-rpath(%t)
+// RUN: %target-codesign %t/a.out
+// RUN: %target-run %t/a.out > %t/run.log
+// RUN: %FileCheck %t/Client.swift --check-prefix=PRINTS --input-file %t/run.log
+
+// REQUIRES: swift_feature_CDecl
+// REQUIRES: swift_feature_CImplementation
+// REQUIRES: executable_test
+
+//--- BridgingHeader.h
+#include <stddef.h>
+#include <stdbool.h>
+
+extern int simple(int x, int y);
+
+extern void primitiveTypes(ptrdiff_t i, int ci, long l, char c, float f, double d, bool b);
+
+extern void sameName();
+
+__attribute__((swift_name("renamed_swiftSide(_:)")))
+extern void renamed_clangSide(ptrdiff_t arg);
+
+//--- Lib.swift
+
+@cdecl @implementation
+public func simple(_ x: Int32, _ y: Int32) -> Int32 {
+    print(x, y)
+    return x
+}
+
+@implementation @cdecl
+public func primitiveTypes(_ i: Int, _ ci: CInt, _ l: CLong, _ c: CChar, _ f: Float, _ d: Double, _ b: Bool) {
+    print(i, ci, l, c, f, d, b)
+}
+
+@cdecl(sameName) @implementation
+public func sameName() {
+    print("sameName")
+}
+
+@cdecl(renamed_clangSide) @implementation
+public func renamed_swiftSide(_ arg: Int) {
+    print(arg)
+}
+
+//--- Client.c
+
+#include "cdecl.h"
+#include "BridgingHeader.h"
+
+int main() {
+    ptrdiff_t x = simple(42, 43);
+    // PRINTS: 42 43
+    primitiveTypes(1, 2, 3, 'a', 1.0f, 2.0, true);
+    // PRINTS: 1 2 3 97 1.0 2.0 true
+    sameName();
+    // PRINTS: sameName
+    renamed_clangSide(11);
+    // PRINTS: 11
+}
+
+//--- Client.swift
+import Lib
+
+let _ = simple(42, 43)
+// PRINTS: 42 43
+primitiveTypes(1, 2, 3, 97, 1.0, 2.0, true)
+// PRINTS: 1 2 3 97 1.0 2.0 true
+sameName();
+// PRINTS: sameName
+renamed_swiftSide(11)
+// PRINTS: 11