gecko/xpcom/reflect/xptinfo/public/xptinfo.h

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1999
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
/* XPTI_PUBLIC_API and XPTI_GetInterfaceInfoManager declarations. */
#ifndef xptiinfo_h___
#define xptiinfo_h___
#include "prtypes.h"
#include "nscore.h"
#include "xpt_struct.h"
class nsIInterfaceInfoManager;
// Flyweight wrapper classes for xpt_struct.h structs.
// Everything here is dependent upon - and sensitive to changes in -
// xpcom/typelib/xpt/public/xpt_struct.h!
class nsXPTType : public XPTTypeDescriptorPrefix
{
// NO DATA - this a flyweight wrapper
public:
nsXPTType()
{} // random contents
nsXPTType(const XPTTypeDescriptorPrefix& prefix)
{*(XPTTypeDescriptorPrefix*)this = prefix;}
nsXPTType(const PRUint8& prefix)
{*(PRUint8*)this = prefix;}
nsXPTType& operator=(PRUint8 val)
{flags = val; return *this;}
nsXPTType& operator=(const nsXPTType& other)
{flags = other.flags; return *this;}
operator PRUint8() const
{return flags;}
PRBool IsPointer() const
{return 0 != (XPT_TDP_IS_POINTER(flags));}
PRBool IsUniquePointer() const
{return 0 != (XPT_TDP_IS_UNIQUE_POINTER(flags));}
PRBool IsReference() const
{return 0 != (XPT_TDP_IS_REFERENCE(flags));}
PRBool IsArithmetic() const // terminology from Harbison/Steele
{return flags <= T_WCHAR;}
PRBool IsInterfacePointer() const
{ switch (TagPart()) {
default:
return PR_FALSE;
case T_INTERFACE:
case T_INTERFACE_IS:
return PR_TRUE;
}
}
PRBool IsArray() const
{return TagPart() == T_ARRAY;}
// 'Dependent' means that params of this type are dependent upon other
// params. e.g. an T_INTERFACE_IS is dependent upon some other param at
// runtime to say what the interface type of this param really is.
PRBool IsDependent() const
{ switch (TagPart()) {
default:
return PR_FALSE;
case T_INTERFACE_IS:
case TD_ARRAY:
case T_PSTRING_SIZE_IS:
case T_PWSTRING_SIZE_IS:
return PR_TRUE;
}
}
PRUint8 TagPart() const
{return (PRUint8) (flags & XPT_TDP_TAGMASK);}
enum
{
T_I8 = TD_INT8 ,
T_I16 = TD_INT16 ,
T_I32 = TD_INT32 ,
T_I64 = TD_INT64 ,
T_U8 = TD_UINT8 ,
T_U16 = TD_UINT16 ,
T_U32 = TD_UINT32 ,
T_U64 = TD_UINT64 ,
T_FLOAT = TD_FLOAT ,
T_DOUBLE = TD_DOUBLE ,
T_BOOL = TD_BOOL ,
T_CHAR = TD_CHAR ,
T_WCHAR = TD_WCHAR ,
T_VOID = TD_VOID ,
T_IID = TD_PNSIID ,
T_DOMSTRING = TD_DOMSTRING ,
T_CHAR_STR = TD_PSTRING ,
T_WCHAR_STR = TD_PWSTRING ,
T_INTERFACE = TD_INTERFACE_TYPE ,
T_INTERFACE_IS = TD_INTERFACE_IS_TYPE,
T_ARRAY = TD_ARRAY ,
T_PSTRING_SIZE_IS = TD_PSTRING_SIZE_IS ,
T_PWSTRING_SIZE_IS = TD_PWSTRING_SIZE_IS ,
T_UTF8STRING = TD_UTF8STRING ,
T_CSTRING = TD_CSTRING ,
T_ASTRING = TD_ASTRING ,
T_JSVAL = TD_JSVAL
};
// NO DATA - this a flyweight wrapper
};
class nsXPTParamInfo : public XPTParamDescriptor
{
// NO DATA - this a flyweight wrapper
public:
nsXPTParamInfo(const XPTParamDescriptor& desc)
{*(XPTParamDescriptor*)this = desc;}
PRBool IsIn() const {return 0 != (XPT_PD_IS_IN(flags));}
PRBool IsOut() const {return 0 != (XPT_PD_IS_OUT(flags));}
PRBool IsRetval() const {return 0 != (XPT_PD_IS_RETVAL(flags));}
PRBool IsShared() const {return 0 != (XPT_PD_IS_SHARED(flags));}
PRBool IsDipper() const {return 0 != (XPT_PD_IS_DIPPER(flags));}
PRBool IsOptional() const {return 0 != (XPT_PD_IS_OPTIONAL(flags));}
const nsXPTType GetType() const {return type.prefix;}
// NOTE: other activities on types are done via methods on nsIInterfaceInfo
private:
nsXPTParamInfo(); // no implementation
// NO DATA - this a flyweight wrapper
};
class nsXPTMethodInfo : public XPTMethodDescriptor
{
// NO DATA - this a flyweight wrapper
public:
nsXPTMethodInfo(const XPTMethodDescriptor& desc)
{*(XPTMethodDescriptor*)this = desc;}
PRBool IsGetter() const {return 0 != (XPT_MD_IS_GETTER(flags) );}
PRBool IsSetter() const {return 0 != (XPT_MD_IS_SETTER(flags) );}
PRBool IsNotXPCOM() const {return 0 != (XPT_MD_IS_NOTXPCOM(flags));}
PRBool IsConstructor() const {return 0 != (XPT_MD_IS_CTOR(flags) );}
PRBool IsHidden() const {return 0 != (XPT_MD_IS_HIDDEN(flags) );}
PRBool WantsOptArgc() const {return 0 != (XPT_MD_WANTS_OPT_ARGC(flags));}
PRBool WantsContext() const {return 0 != (XPT_MD_WANTS_CONTEXT(flags));}
const char* GetName() const {return name;}
PRUint8 GetParamCount() const {return num_args;}
/* idx was index before I got _sick_ of the warnings on Unix, sorry jband */
const nsXPTParamInfo GetParam(PRUint8 idx) const
{
NS_PRECONDITION(idx < GetParamCount(),"bad arg");
return params[idx];
}
const nsXPTParamInfo GetResult() const
{return *result;}
private:
nsXPTMethodInfo(); // no implementation
// NO DATA - this a flyweight wrapper
};
// forward declaration
struct nsXPTCMiniVariant;
class nsXPTConstant : public XPTConstDescriptor
{
// NO DATA - this a flyweight wrapper
public:
nsXPTConstant(const XPTConstDescriptor& desc)
{*(XPTConstDescriptor*)this = desc;}
const char* GetName() const
{return name;}
const nsXPTType GetType() const
{return type.prefix;}
// XXX this is ugly. But sometimes you gotta do what you gotta do.
// A reinterpret_cast won't do the trick here. And this plain C cast
// works correctly and is safe enough.
// See http://bugzilla.mozilla.org/show_bug.cgi?id=49641
const nsXPTCMiniVariant* GetValue() const
{return (nsXPTCMiniVariant*) &value;}
private:
nsXPTConstant(); // no implementation
// NO DATA - this a flyweight wrapper
};
#endif /* xptiinfo_h___ */