1 : /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /* ***** BEGIN LICENSE BLOCK *****
3 : * Version: MPL 1.1/GPL 2.0/LGPL 2.1
4 : *
5 : * The contents of this file are subject to the Mozilla Public License Version
6 : * 1.1 (the "License"); you may not use this file except in compliance with
7 : * the License. You may obtain a copy of the License at
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10 : * Software distributed under the License is distributed on an "AS IS" basis,
11 : * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
12 : * for the specific language governing rights and limitations under the
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15 : * The Original Code is mozilla.org code.
16 : *
17 : * The Initial Developer of the Original Code is
18 : * Netscape Communications Corporation.
19 : * Portions created by the Initial Developer are Copyright (C) 1999
20 : * the Initial Developer. All Rights Reserved.
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22 : * Contributor(s):
23 : *
24 : * Alternatively, the contents of this file may be used under the terms of
25 : * either of the GNU General Public License Version 2 or later (the "GPL"),
26 : * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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36 : * ***** END LICENSE BLOCK ***** */
37 :
38 : /* XPTI_PUBLIC_API and XPTI_GetInterfaceInfoManager declarations. */
39 :
40 : #ifndef xptiinfo_h___
41 : #define xptiinfo_h___
42 :
43 : #include "prtypes.h"
44 : #include "nscore.h"
45 : #include "xpt_struct.h"
46 :
47 : class nsIInterfaceInfoManager;
48 :
49 : // Flyweight wrapper classes for xpt_struct.h structs.
50 : // Everything here is dependent upon - and sensitive to changes in -
51 : // xpcom/typelib/xpt/public/xpt_struct.h!
52 :
53 : class nsXPTType : public XPTTypeDescriptorPrefix
54 : {
55 : // NO DATA - this a flyweight wrapper
56 : public:
57 18250057 : nsXPTType()
58 18250057 : {} // random contents
59 52465615 : nsXPTType(const XPTTypeDescriptorPrefix& prefix)
60 52465615 : {*(XPTTypeDescriptorPrefix*)this = prefix;}
61 :
62 82669 : nsXPTType(const PRUint8& prefix)
63 82669 : {*(PRUint8*)this = prefix;}
64 :
65 476394 : nsXPTType& operator=(PRUint8 val)
66 476394 : {flags = val; return *this;}
67 :
68 17684841 : nsXPTType& operator=(const nsXPTType& other)
69 17684841 : {flags = other.flags; return *this;}
70 :
71 7103237 : operator PRUint8() const
72 7103237 : {return flags;}
73 :
74 : // 'Arithmetic' here roughly means that the value is self-contained and
75 : // doesn't depend on anything else in memory (ie: not a pointer, not an
76 : // XPCOM object, not a jsval, etc).
77 : //
78 : // Supposedly this terminology comes from Harbison/Steele, but it's still
79 : // a rather crappy name. We'd change it if it wasn't used all over the
80 : // place in xptcall. :-(
81 31976996 : bool IsArithmetic() const
82 31976996 : {return flags <= T_WCHAR;}
83 :
84 : // We used to abuse 'pointer' flag bit in typelib format quite extensively.
85 : // We've gotten rid of most of the cases, but there's still a fair amount
86 : // of refactoring to be done in XPCWrappedJSClass before we can safely stop
87 : // asking about this. In the mean time, we've got a temporary version of
88 : // IsPointer() that should be equivalent to what's in the typelib.
89 315022 : bool deprecated_IsPointer() const
90 315022 : {return !IsArithmetic() && TagPart() != T_JSVAL;}
91 :
92 6814991 : bool IsInterfacePointer() const
93 6814991 : { switch (TagPart()) {
94 : default:
95 5341141 : return false;
96 : case T_INTERFACE:
97 : case T_INTERFACE_IS:
98 1473850 : return true;
99 : }
100 : }
101 :
102 17654970 : bool IsArray() const
103 17654970 : {return TagPart() == T_ARRAY;}
104 :
105 : // 'Dependent' means that params of this type are dependent upon other
106 : // params. e.g. an T_INTERFACE_IS is dependent upon some other param at
107 : // runtime to say what the interface type of this param really is.
108 12078365 : bool IsDependent() const
109 12078365 : { switch (TagPart()) {
110 : default:
111 11860909 : return false;
112 : case T_INTERFACE_IS:
113 : case TD_ARRAY:
114 : case T_PSTRING_SIZE_IS:
115 : case T_PWSTRING_SIZE_IS:
116 217456 : return true;
117 : }
118 : }
119 :
120 134583068 : PRUint8 TagPart() const
121 134583068 : {return (PRUint8) (flags & XPT_TDP_TAGMASK);}
122 :
123 : enum
124 : {
125 : T_I8 = TD_INT8 ,
126 : T_I16 = TD_INT16 ,
127 : T_I32 = TD_INT32 ,
128 : T_I64 = TD_INT64 ,
129 : T_U8 = TD_UINT8 ,
130 : T_U16 = TD_UINT16 ,
131 : T_U32 = TD_UINT32 ,
132 : T_U64 = TD_UINT64 ,
133 : T_FLOAT = TD_FLOAT ,
134 : T_DOUBLE = TD_DOUBLE ,
135 : T_BOOL = TD_BOOL ,
136 : T_CHAR = TD_CHAR ,
137 : T_WCHAR = TD_WCHAR ,
138 : T_VOID = TD_VOID ,
139 : T_IID = TD_PNSIID ,
140 : T_DOMSTRING = TD_DOMSTRING ,
141 : T_CHAR_STR = TD_PSTRING ,
142 : T_WCHAR_STR = TD_PWSTRING ,
143 : T_INTERFACE = TD_INTERFACE_TYPE ,
144 : T_INTERFACE_IS = TD_INTERFACE_IS_TYPE,
145 : T_ARRAY = TD_ARRAY ,
146 : T_PSTRING_SIZE_IS = TD_PSTRING_SIZE_IS ,
147 : T_PWSTRING_SIZE_IS = TD_PWSTRING_SIZE_IS ,
148 : T_UTF8STRING = TD_UTF8STRING ,
149 : T_CSTRING = TD_CSTRING ,
150 : T_ASTRING = TD_ASTRING ,
151 : T_JSVAL = TD_JSVAL
152 : };
153 : // NO DATA - this a flyweight wrapper
154 : };
155 :
156 : class nsXPTParamInfo : public XPTParamDescriptor
157 : {
158 : // NO DATA - this a flyweight wrapper
159 : public:
160 68929373 : nsXPTParamInfo(const XPTParamDescriptor& desc)
161 68929373 : {*(XPTParamDescriptor*)this = desc;}
162 :
163 :
164 9381492 : bool IsIn() const {return 0 != (XPT_PD_IS_IN(flags));}
165 42087367 : bool IsOut() const {return 0 != (XPT_PD_IS_OUT(flags));}
166 18335191 : bool IsRetval() const {return 0 != (XPT_PD_IS_RETVAL(flags));}
167 12399401 : bool IsShared() const {return 0 != (XPT_PD_IS_SHARED(flags));}
168 26253499 : bool IsDipper() const {return 0 != (XPT_PD_IS_DIPPER(flags));}
169 417542 : bool IsOptional() const {return 0 != (XPT_PD_IS_OPTIONAL(flags));}
170 52329155 : const nsXPTType GetType() const {return type.prefix;}
171 :
172 : // Whether this parameter is passed indirectly on the stack. This mainly
173 : // applies to out/inout params, but we use it unconditionally for certain
174 : // types.
175 9338031 : bool IsIndirect() const {return IsOut() ||
176 9338031 : GetType().TagPart() == nsXPTType::T_JSVAL;}
177 :
178 : // NOTE: other activities on types are done via methods on nsIInterfaceInfo
179 :
180 : private:
181 : nsXPTParamInfo(); // no implementation
182 : // NO DATA - this a flyweight wrapper
183 : };
184 :
185 : class nsXPTMethodInfo : public XPTMethodDescriptor
186 : {
187 : // NO DATA - this a flyweight wrapper
188 : public:
189 : nsXPTMethodInfo(const XPTMethodDescriptor& desc)
190 : {*(XPTMethodDescriptor*)this = desc;}
191 :
192 1320867 : bool IsGetter() const {return 0 != (XPT_MD_IS_GETTER(flags) );}
193 1493592 : bool IsSetter() const {return 0 != (XPT_MD_IS_SETTER(flags) );}
194 0 : bool IsNotXPCOM() const {return 0 != (XPT_MD_IS_NOTXPCOM(flags));}
195 : bool IsConstructor() const {return 0 != (XPT_MD_IS_CTOR(flags) );}
196 0 : bool IsHidden() const {return 0 != (XPT_MD_IS_HIDDEN(flags) );}
197 6669641 : bool WantsOptArgc() const {return 0 != (XPT_MD_WANTS_OPT_ARGC(flags));}
198 6669641 : bool WantsContext() const {return 0 != (XPT_MD_WANTS_CONTEXT(flags));}
199 1486422 : const char* GetName() const {return name;}
200 91080354 : PRUint8 GetParamCount() const {return num_args;}
201 : /* idx was index before I got _sick_ of the warnings on Unix, sorry jband */
202 62343666 : const nsXPTParamInfo GetParam(PRUint8 idx) const
203 : {
204 62343666 : NS_PRECONDITION(idx < GetParamCount(),"bad arg");
205 62343666 : return params[idx];
206 : }
207 : const nsXPTParamInfo GetResult() const
208 : {return *result;}
209 : private:
210 : nsXPTMethodInfo(); // no implementation
211 : // NO DATA - this a flyweight wrapper
212 : };
213 :
214 :
215 : // forward declaration
216 : struct nsXPTCMiniVariant;
217 :
218 : class nsXPTConstant : public XPTConstDescriptor
219 : {
220 : // NO DATA - this a flyweight wrapper
221 : public:
222 : nsXPTConstant(const XPTConstDescriptor& desc)
223 : {*(XPTConstDescriptor*)this = desc;}
224 :
225 388193 : const char* GetName() const
226 388193 : {return name;}
227 :
228 20080 : const nsXPTType GetType() const
229 20080 : {return type.prefix;}
230 :
231 : // XXX this is ugly. But sometimes you gotta do what you gotta do.
232 : // A reinterpret_cast won't do the trick here. And this plain C cast
233 : // works correctly and is safe enough.
234 : // See http://bugzilla.mozilla.org/show_bug.cgi?id=49641
235 20080 : const nsXPTCMiniVariant* GetValue() const
236 20080 : {return (nsXPTCMiniVariant*) &value;}
237 : private:
238 : nsXPTConstant(); // no implementation
239 : // NO DATA - this a flyweight wrapper
240 : };
241 :
242 : #endif /* xptiinfo_h___ */
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