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1.1 root 1: /* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
2: *
3: * ***** BEGIN LICENSE BLOCK *****
4: * Version: MPL 1.1/GPL 2.0/LGPL 2.1
5: *
6: * The contents of this file are subject to the Mozilla Public License Version
7: * 1.1 (the "License"); you may not use this file except in compliance with
8: * the License. You may obtain a copy of the License at
9: * http://www.mozilla.org/MPL/
10: *
11: * Software distributed under the License is distributed on an "AS IS" basis,
12: * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
13: * for the specific language governing rights and limitations under the
14: * License.
15: *
16: * The Original Code is Mozilla Communicator client code, released
17: * March 31, 1998.
18: *
19: * The Initial Developer of the Original Code is
20: * Netscape Communications Corporation.
21: * Portions created by the Initial Developer are Copyright (C) 1998
22: * the Initial Developer. All Rights Reserved.
23: *
24: * Contributor(s):
25: *
26: * Alternatively, the contents of this file may be used under the terms of
27: * either of the GNU General Public License Version 2 or later (the "GPL"),
28: * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
29: * in which case the provisions of the GPL or the LGPL are applicable instead
30: * of those above. If you wish to allow use of your version of this file only
31: * under the terms of either the GPL or the LGPL, and not to allow others to
32: * use your version of this file under the terms of the MPL, indicate your
33: * decision by deleting the provisions above and replace them with the notice
34: * and other provisions required by the GPL or the LGPL. If you do not delete
35: * the provisions above, a recipient may use your version of this file under
36: * the terms of any one of the MPL, the GPL or the LGPL.
37: *
38: * ***** END LICENSE BLOCK ***** */
39:
40: #ifndef jsfun_h___
41: #define jsfun_h___
42: /*
43: * JS function definitions.
44: */
45: #include "jsprvtd.h"
46: #include "jspubtd.h"
47:
48: JS_BEGIN_EXTERN_C
49:
50: struct JSFunction {
51: jsrefcount nrefs; /* number of referencing objects */
52: JSObject *object; /* back-pointer to GC'ed object header */
53: union {
54: JSNative native; /* native method pointer or null */
55: JSScript *script; /* interpreted bytecode descriptor or null */
56: } u;
57: uint16 nargs; /* minimum number of actual arguments */
58: uint16 extra; /* number of arg slots for local GC roots */
59: uint16 nvars; /* number of local variables */
60: uint8 flags; /* bound method and other flags, see jsapi.h */
61: JSPackedBool interpreted; /* use u.script if true, u.native if false */
62: uint16 nregexps; /* number of regular expressions literals */
63: uint16 spare; /* reserved for future use */
64: JSAtom *atom; /* name for diagnostics and decompiling */
65: JSClass *clasp; /* if non-null, constructor for this class */
66: };
67:
68: #define FUN_NATIVE(fun) ((fun)->interpreted ? NULL : (fun)->u.native)
69: #define FUN_SCRIPT(fun) ((fun)->interpreted ? (fun)->u.script : NULL)
70:
71: extern JSClass js_ArgumentsClass;
72: extern JSClass js_CallClass;
73:
74: /* JS_FRIEND_DATA so that JSVAL_IS_FUNCTION is callable from outside */
75: extern JS_FRIEND_DATA(JSClass) js_FunctionClass;
76:
77: /*
78: * NB: jsapi.h and jsobj.h must be included before any call to this macro.
79: */
80: #define JSVAL_IS_FUNCTION(cx, v) \
81: (JSVAL_IS_OBJECT(v) && JSVAL_TO_OBJECT(v) && \
82: OBJ_GET_CLASS(cx, JSVAL_TO_OBJECT(v)) == &js_FunctionClass)
83:
84: extern JSBool
85: js_fun_toString(JSContext *cx, JSObject *obj, uint32 indent,
86: uintN argc, jsval *argv, jsval *rval);
87:
88: extern JSBool
89: js_IsIdentifier(JSString *str);
90:
91: extern JSObject *
92: js_InitFunctionClass(JSContext *cx, JSObject *obj);
93:
94: extern JSObject *
95: js_InitArgumentsClass(JSContext *cx, JSObject *obj);
96:
97: extern JSObject *
98: js_InitCallClass(JSContext *cx, JSObject *obj);
99:
100: extern JSFunction *
101: js_NewFunction(JSContext *cx, JSObject *funobj, JSNative native, uintN nargs,
102: uintN flags, JSObject *parent, JSAtom *atom);
103:
104: extern JSObject *
105: js_CloneFunctionObject(JSContext *cx, JSObject *funobj, JSObject *parent);
106:
107: extern JSBool
108: js_LinkFunctionObject(JSContext *cx, JSFunction *fun, JSObject *object);
109:
110: extern JSFunction *
111: js_DefineFunction(JSContext *cx, JSObject *obj, JSAtom *atom, JSNative native,
112: uintN nargs, uintN flags);
113:
114: /*
115: * Flags for js_ValueToFunction and js_ReportIsNotFunction. We depend on the
116: * fact that JSINVOKE_CONSTRUCT (aka JSFRAME_CONSTRUCTING) is 1, and test that
117: * with #if/#error in jsfun.c.
118: */
119: #define JSV2F_CONSTRUCT JSINVOKE_CONSTRUCT
120: #define JSV2F_SEARCH_STACK 2
121:
122: extern JSFunction *
123: js_ValueToFunction(JSContext *cx, jsval *vp, uintN flags);
124:
125: extern void
126: js_ReportIsNotFunction(JSContext *cx, jsval *vp, uintN flags);
127:
128: extern JSObject *
129: js_GetCallObject(JSContext *cx, JSStackFrame *fp, JSObject *parent);
130:
131: extern JSBool
132: js_PutCallObject(JSContext *cx, JSStackFrame *fp);
133:
134: extern JSBool
135: js_GetCallVariable(JSContext *cx, JSObject *obj, jsval id, jsval *vp);
136:
137: extern JSBool
138: js_SetCallVariable(JSContext *cx, JSObject *obj, jsval id, jsval *vp);
139:
140: extern JSBool
141: js_GetArgsValue(JSContext *cx, JSStackFrame *fp, jsval *vp);
142:
143: extern JSBool
144: js_GetArgsProperty(JSContext *cx, JSStackFrame *fp, jsid id,
145: JSObject **objp, jsval *vp);
146:
147: extern JSObject *
148: js_GetArgsObject(JSContext *cx, JSStackFrame *fp);
149:
150: extern JSBool
151: js_PutArgsObject(JSContext *cx, JSStackFrame *fp);
152:
153: extern JSBool
154: js_XDRFunction(JSXDRState *xdr, JSObject **objp);
155:
156: JS_END_EXTERN_C
157:
158: #endif /* jsfun_h___ */
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