src/ecmascript/spidermonkey-shared.h

   1 #ifndef EL__ECMASCRIPT_SPIDERMONKEY_SHARED_H
   2 #define EL__ECMASCRIPT_SPIDERMONKEY_SHARED_H
   3
   4 /* For wild SpiderMonkey installations. */
   5 #ifdef CONFIG_OS_BEOS
   6 #define XP_BEOS
   7 #elif CONFIG_OS_OS2
   8 #define XP_OS2
   9 #elif CONFIG_OS_RISCOS
  10 #error Out of luck, buddy!
  11 #elif CONFIG_OS_UNIX
  12 #define XP_UNIX
  13 #elif CONFIG_OS_WIN32
  14 #define XP_WIN
  15 #endif
  16
  17 #include <jsapi.h>
  18
  19 #include "util/string.h"
  20
  21 extern JSRuntime *spidermonkey_runtime;
  22 extern JSContext *spidermonkey_empty_context;
  23 int spidermonkey_runtime_addref(void);
  24 void spidermonkey_runtime_release(void);
  25
  26 /** An ELinks-specific replacement for JSFunctionSpec.
  27  *
  28  * Bug 1016: In SpiderMonkey 1.7 bundled with XULRunner 1.8, jsapi.h
  29  * defines JSFunctionSpec in different ways depending on whether
  30  * MOZILLA_1_8_BRANCH is defined, and there is no obvious way for
  31  * ELinks to check whether MOZILLA_1_8_BRANCH was defined when the
  32  * library was built.  Avoid the unstable JSFunctionSpec definitions
  33  * and use this ELinks-specific structure instead.  */
  34 typedef struct spidermonkeyFunctionSpec {
  35         const char *name;
  36         JSNative call;
  37         uint8 nargs;
  38         /* ELinks does not use "flags" and "extra" so omit them here.  */
  39 } spidermonkeyFunctionSpec;
  40
  41 JSBool spidermonkey_DefineFunctions(JSContext *cx, JSObject *obj,
  42                                     const spidermonkeyFunctionSpec *fs);
  43 JSObject *spidermonkey_InitClass(JSContext *cx, JSObject *obj,
  44                                  JSObject *parent_proto, JSClass *clasp,
  45                                  JSNative constructor, uintN nargs,
  46                                  JSPropertySpec *ps,
  47                                  const spidermonkeyFunctionSpec *fs,
  48                                  JSPropertySpec *static_ps,
  49                                  const spidermonkeyFunctionSpec *static_fs);
  50
  51 static void undef_to_jsval(JSContext *ctx, jsval *vp);
  52 static unsigned char *jsval_to_string(JSContext *ctx, jsval *vp);
  53
  54 /* Inline functions */
  55
  56 static inline void
  57 undef_to_jsval(JSContext *ctx, jsval *vp)
  58 {
  59         *vp = JSVAL_NULL;
  60 }
  61
  62 static inline unsigned char *
  63 jsval_to_string(JSContext *ctx, jsval *vp)
  64 {
  65         jsval val;
  66
  67         if (JS_ConvertValue(ctx, *vp, JSTYPE_STRING, &val) == JS_FALSE) {
  68                 return "";
  69         }
  70
  71         return empty_string_or_(JS_GetStringBytes(JS_ValueToString(ctx, val)));
  72 }
  73
  74 #endif