JS_ExecuteScriptPart 编辑

Obsolete since JavaScript 1.9.3
This feature is obsolete. Although it may still work in some browsers, its use is discouraged since it could be removed at any time. Try to avoid using it.

Executes a part of a compiled script.

Syntax

typedef enum JSExecPart {
  JSEXEC_PROLOG, JSEXEC_MAIN
} JSExecPart;

JSBool
JS_ExecuteScriptPart(
    JSContext *cx, JSObject *obj, JSScript *script,
    JSExecPart part, jsval *rval);

Description

JS_ExecuteScriptPart executes part of a previously compiled script, script. The part parameter must be either JSEXEC_PROLOG to execute the script prolog or JSEXEC_MAIN to execute the main section of the script.

If the script executes successfully, JS_ExecuteScriptPart stores the value of the last-executed expression statement in the script in *rval and returns JS_TRUE. Otherwise it returns JS_FALSE, and the value left in *rval is undefined.

To execute both parts of a script, use JS_ExecuteScript instead.

See Also

• MXR ID Search for JS_ExecuteScriptPart
• JS_ExecuteScript
• bug 555104