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| #include "js.h"
enum tagMY_PEOPLE {MY_NAME,MY_ADDRESS};
static JSBool GetPeopleProperty (JSContext *cx, JSObject *obj, jsval id, jsval *vp);
static JSBool SetPeopleProperty (JSContext *cx, JSObject *obj, jsval id, jsval *vp);
static JSBool PeoplePrint(JSContext *cx, JSObject *obj, uintN argc,
jsval *argv, jsval *rval);
typedef struct{
char name[16];
char addr[64];}PeopleInfo;
static PeopleInfo m_ainfo={"myName","myAddress"};
/*定义属性的 GETTER*/
static JSBool GetPeopleProperty (JSContext *cx, JSObject *obj, jsval id, jsval *vp)
{
if (JSVAL_IS_INT(id)) {
switch (JSVAL_TO_INT(id)) {
case MY_NAME:
*vp=STRING_TO_JSVAL (JS_NewStringCopyZ (cx,m_ainfo.name));
break;
case MY_ADDRESS:
*vp=STRING_TO_JSVAL (JS_NewStringCopyZ (cx,m_ainfo.addr));
break;
}
}
return JS_TRUE;
}
/*定义属性的SETTER*/
static JSBool SetPeopleProperty (JSContext *cx, JSObject *obj, jsval id, jsval *vp)
{
if (JSVAL_IS_INT(id)) {
switch (JSVAL_TO_INT(id)) {
case MY_NAME:
strncpy (m_ainfo.name, JS_GetStringBytes (jss), 15);
break;
case MY_ADDRESS:
strncpy (m_ainfo.addr, JS_GetStringBytes (jss), 63);
break;
}
}
return JS_TRUE;
}
/*定义print方法*/
static JSBool PeoplePrint(JSContext *cx, JSObject *obj, uintN argc, jsval *argv,
jsval *rval)
{
fprintf(stdout,"My Name is %s.\nMy Addr is %s.\n",m_ainfo.name,m_ainfo.addr);
return JS_TRUE;
}
void main()
{
JSString* jss;
char buf[5120];
int len;
jsval rval;
JSRuntime *rt;
JSContext *cx;
JSObject *globalObj,*PeopleObj;
JSClass global_class = {
"global",0,
JS_PropertyStub, JS_PropertyStub,JS_PropertyStub, JS_PropertyStub,
JS_EnumerateStub, JS_ResolveStub,JS_ConvertStub, JS_FinalizeStub };
/*定义People类的属性数组*/
static JSPropertySpec PeopleProperties[] =
{
{"name", MY_NAME, JSPROP_ENUMERATE },
{"address", MY_ADDRESS, JSPROP_ENUMERATE },
{0}
} ;
/*定义People类的方法数组*/
static JSFunctionSpec PeopleMethods[] =
{
{"print", PeoplePrint, 0},
{0}
};
/*定义People类*/
static JSClass PeopleClass = {
"people",0,
JS_PropertyStub,JS_PropertyStub, GetPeopleProperty, SetPeopleProperty,
JS_EnumerateStub, JS_ResolveStub, JS_ConvertStub, JS_FinalizeStub
};
typedef struct{}
/* 初始化JS RunTime，返回结果给rt */
rt = JS_Init(1000000L);
if (!rt)return;
/* 创建一个上下文，并将其与JS RunTime关联起来 */
cx = JS_NewContext(rt, 5120);
if (!cx)return;
/* 创建全局对象 */
if (!(globalObj = JS_NewObject (cx, &global_class, NULL, NULL)))return;
/* 实例化内置对象和全局对象*/
JS_InitStandardClasses (cx, globalObj);
/*实例化People对象*/
PeopleObj = JS_DefineObject (cx, globalObj, "People", &PeopleClass, 0,JSPROP_ENUMERATE);
/*创建对象的属性*/
JS_DefineProperties (cx,PeopleObj, PeopleProperties);
/*创建对象的方法*/
JS_DefineFunctions (cx,PeopleObj, PeopleMethods);
FILE* fp;
/*打开文件，读入脚本*/
if (!(fp = fopen ("test.js", "r")))return;
len = fread (buf, 1, 5120, fp);
fclose (fp);
if (len <= 0)return;
/*执行一段脚本*/
JS_EvaluateScript (cx, globalObj, buf, len, "", 1, &rval);
jss = JS_ValueToString (cx, rval);
fprintf(stdout，"The result is: %s"，JS_GetStringBytes (jss));
/*释放上下文*/
JS_DestroyContext(cx);
/*释放RunTime*/
JS_DestroyRuntime(rt);
return;
}
|
