Changeset 225063 in webkit for trunk/Source/JavaScriptCore/API/JSBase.h

Timestamp:

Nov 20, 2017, 6:48:14 PM (8 years ago)

Author:

[email protected]

Message:

Detect declspec within JSBase.h
​https://bugs.webkit.org/show_bug.cgi?id=179892

Reviewed by Darin Adler.

• API/JSBase.h:

File:

• trunk/Source/JavaScriptCore/API/JSBase.h (modified) (3 diffs)

trunk/Source/JavaScriptCore/API/JSBase.h

@@ -69 +69 @@
 typedef struct OpaqueJSValue* JSObjectRef;
 
+/* Clang's __has_declspec_attribute emulation */
+/* https://clang.llvm.org/docs/LanguageExtensions.html#has-declspec-attribute */
+
+#ifndef __has_declspec_attribute
+#define __has_declspec_attribute(x) 0
+#endif
+
 /* JavaScript symbol exports */
 /* These rules should stay the same as in WebKit2/Shared/API/c/WKBase.h */
@@ -75 +82 @@
 #if defined(JS_NO_EXPORT)
 #define JS_EXPORT
-#elif defined(__GNUC__) && !defined(__CC_ARM) && !defined(__ARMCC__)
-#define JS_EXPORT __attribute__((visibility("default")))
-#elif defined(WIN32) || defined(_WIN32) || defined(_WIN32_WCE) || defined(__CC_ARM) || defined(__ARMCC__)
+#elif defined(WIN32) || defined(_WIN32) || defined(__CC_ARM) || defined(__ARMCC__) || (__has_declspec_attribute(dllimport) && __has_declspec_attribute(dllexport))
 #if defined(BUILDING_JavaScriptCore) || defined(STATICALLY_LINKED_WITH_JavaScriptCore)
 #define JS_EXPORT __declspec(dllexport)
@@ -83 +88 @@
 #define JS_EXPORT __declspec(dllimport)
 #endif
+#elif defined(__GNUC__)
+#define JS_EXPORT __attribute__((visibility("default")))
 #else /* !defined(JS_NO_EXPORT) */
 #define JS_EXPORT