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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: JSObject *object; /* back-pointer to GC'ed object header */
1.1.1.2 ! root 52: uint16 nargs; /* minimum number of actual arguments */
! 53: uint16 flags; /* bound method and other flags, see jsapi.h */
1.1 root 54: union {
1.1.1.2 ! root 55: struct {
! 56: uint16 extra; /* number of arg slots for local GC roots */
! 57: uint16 spare; /* reserved for future use */
! 58: JSNative native; /* native method pointer or null */
! 59: } n;
! 60: struct {
! 61: uint16 nvars; /* number of local variables */
! 62: uint16 nregexps; /* number of regular expressions literals */
! 63: JSScript *script; /* interpreted bytecode descriptor or null */
! 64: } i;
1.1 root 65: } u;
66: JSAtom *atom; /* name for diagnostics and decompiling */
67: JSClass *clasp; /* if non-null, constructor for this class */
68: };
69:
1.1.1.2 ! root 70: #define JSFUN_INTERPRETED 0x8000 /* use u.i if set, u.n if unset */
! 71:
! 72: #define FUN_INTERPRETED(fun) ((fun)->flags & JSFUN_INTERPRETED)
! 73: #define FUN_NATIVE(fun) (FUN_INTERPRETED(fun) ? NULL : (fun)->u.n.native)
! 74: #define FUN_SCRIPT(fun) (FUN_INTERPRETED(fun) ? (fun)->u.i.script : NULL)
1.1 root 75:
76: extern JSClass js_ArgumentsClass;
77: extern JSClass js_CallClass;
78:
1.1.1.2 ! root 79: /* JS_FRIEND_DATA so that VALUE_IS_FUNCTION is callable from the shell. */
1.1 root 80: extern JS_FRIEND_DATA(JSClass) js_FunctionClass;
81:
82: /*
83: * NB: jsapi.h and jsobj.h must be included before any call to this macro.
84: */
1.1.1.2 ! root 85: #define VALUE_IS_FUNCTION(cx, v) \
! 86: (!JSVAL_IS_PRIMITIVE(v) && \
1.1 root 87: OBJ_GET_CLASS(cx, JSVAL_TO_OBJECT(v)) == &js_FunctionClass)
88:
89: extern JSBool
90: js_fun_toString(JSContext *cx, JSObject *obj, uint32 indent,
91: uintN argc, jsval *argv, jsval *rval);
92:
93: extern JSBool
94: js_IsIdentifier(JSString *str);
95:
96: extern JSObject *
97: js_InitFunctionClass(JSContext *cx, JSObject *obj);
98:
99: extern JSObject *
100: js_InitArgumentsClass(JSContext *cx, JSObject *obj);
101:
102: extern JSObject *
103: js_InitCallClass(JSContext *cx, JSObject *obj);
104:
105: extern JSFunction *
106: js_NewFunction(JSContext *cx, JSObject *funobj, JSNative native, uintN nargs,
1.1.1.2 ! root 107: uintN flags, JSObject *parent, JSAtom *atom);
1.1 root 108:
109: extern JSObject *
110: js_CloneFunctionObject(JSContext *cx, JSObject *funobj, JSObject *parent);
111:
112: extern JSBool
113: js_LinkFunctionObject(JSContext *cx, JSFunction *fun, JSObject *object);
114:
115: extern JSFunction *
116: js_DefineFunction(JSContext *cx, JSObject *obj, JSAtom *atom, JSNative native,
1.1.1.2 ! root 117: uintN nargs, uintN flags);
1.1 root 118:
119: /*
120: * Flags for js_ValueToFunction and js_ReportIsNotFunction. We depend on the
121: * fact that JSINVOKE_CONSTRUCT (aka JSFRAME_CONSTRUCTING) is 1, and test that
122: * with #if/#error in jsfun.c.
123: */
124: #define JSV2F_CONSTRUCT JSINVOKE_CONSTRUCT
1.1.1.2 ! root 125: #define JSV2F_ITERATOR JSINVOKE_ITERATOR
! 126: #define JSV2F_SEARCH_STACK 0x10000
1.1 root 127:
128: extern JSFunction *
129: js_ValueToFunction(JSContext *cx, jsval *vp, uintN flags);
130:
1.1.1.2 ! root 131: extern JSObject *
! 132: js_ValueToFunctionObject(JSContext *cx, jsval *vp, uintN flags);
! 133:
! 134: extern JSObject *
! 135: js_ValueToCallableObject(JSContext *cx, jsval *vp, uintN flags);
! 136:
1.1 root 137: extern void
138: js_ReportIsNotFunction(JSContext *cx, jsval *vp, uintN flags);
139:
140: extern JSObject *
141: js_GetCallObject(JSContext *cx, JSStackFrame *fp, JSObject *parent);
142:
143: extern JSBool
144: js_PutCallObject(JSContext *cx, JSStackFrame *fp);
145:
146: extern JSBool
147: js_GetCallVariable(JSContext *cx, JSObject *obj, jsval id, jsval *vp);
148:
149: extern JSBool
150: js_SetCallVariable(JSContext *cx, JSObject *obj, jsval id, jsval *vp);
151:
152: extern JSBool
153: js_GetArgsValue(JSContext *cx, JSStackFrame *fp, jsval *vp);
154:
155: extern JSBool
156: js_GetArgsProperty(JSContext *cx, JSStackFrame *fp, jsid id,
157: JSObject **objp, jsval *vp);
158:
159: extern JSObject *
160: js_GetArgsObject(JSContext *cx, JSStackFrame *fp);
161:
162: extern JSBool
163: js_PutArgsObject(JSContext *cx, JSStackFrame *fp);
164:
165: extern JSBool
166: js_XDRFunction(JSXDRState *xdr, JSObject **objp);
167:
168: JS_END_EXTERN_C
169:
170: #endif /* jsfun_h___ */
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