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gecko-dev/dom/tools/JSStubGen.cpp

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Auto-generation of JavaScript stubs
1998-06-03 23:32:26 +00:00
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
#include <sys/types.h>
#include <sys/stat.h>
#include <direct.h>
#include <fstream.h>
#include <ctype.h>
#include "nsIPtr.h"
#include "plhash.h"
#include "JSStubGen.h"
#include "Exceptions.h"
#include "IdlSpecification.h"
#include "IdlInterface.h"
#include "IdlVariable.h"
#include "IdlAttribute.h"
#include "IdlFunction.h"
#include "IdlParameter.h"
static const char *kFilePrefix = "nsJS";
static const char *kFileSuffix = "cpp";
JSStubGen::JSStubGen()
{
}
JSStubGen::~JSStubGen()
{
}
void
JSStubGen::Generate(char *aFileName,
char *aOutputDirName,
IdlSpecification &aSpec)
{
if (!OpenFile(aFileName, aOutputDirName, kFilePrefix, kFileSuffix)) {
throw new CantOpenFileException(aFileName);
}
GenerateNPL();
GenerateIncludes(aSpec);
GenerateIIDDefinitions(aSpec);
GenerateDefPtrs(aSpec);
GeneratePropertySlots(aSpec);
GeneratePropertyFunc(aSpec, PR_TRUE);
GeneratePropertyFunc(aSpec, PR_FALSE);
GenerateFinalize(aSpec);
GenerateEnumerate(aSpec);
GenerateResolve(aSpec);
GenerateMethods(aSpec);
GenerateJSClass(aSpec);
GenerateClassProperties(aSpec);
GenerateClassFunctions(aSpec);
GenerateConstructor(aSpec);
GenerateInitClass(aSpec);
GenerateNew(aSpec);
CloseFile();
}
static const char *kIncludeDefaultsStr = "\n"
"#include \"jsapi.h\"\n"
"#include \"nscore.h\"\n"
"#include \"nsIScriptObject.h\"\n"
"#include \"nsIScriptObjectOwner.h\"\n"
"#include \"nsIPtr.h\"\n"
"#include \"nsString.h\"\n"
"#include \"nsIJSGlobalObject.h\"\n";
static const char *kIncludeStr = "#include \"nsIDOM%s.h\"\n";
static PRIntn
IncludeEnumerator(PLHashEntry *he, PRIntn i, void *arg)
{
char buf[512];
ofstream *file = (ofstream *)arg;
sprintf(buf, kIncludeStr, (char *)he->key);
*file << buf;
return HT_ENUMERATE_NEXT;
}
void
JSStubGen::GenerateIncludes(IdlSpecification &aSpec)
{
ofstream *file = GetFile();
*file << kIncludeDefaultsStr;
EnumerateAllObjects(aSpec, (PLHashEnumerator)IncludeEnumerator,
file, PR_TRUE);
*file << "\n";
}
static const char *kIIDDefaultStr = "\n"
"static NS_DEFINE_IID(kIScriptObjectOwnerIID, NS_ISCRIPTOBJECTOWNER_IID);\n"
"static NS_DEFINE_IID(kIScriptObjectIID, NS_ISCRIPTOBJECT_IID);\n"
"static NS_DEFINE_IID(kIJSGlobalObjectIID, NS_IJSGLOBALOBJECT_IID);\n";
static const char *kIIDStr = "static NS_DEFINE_IID(kI%sIID, %s);\n";
PRIntn
JSStubGen_IIDEnumerator(PLHashEntry *he, PRIntn i, void *arg)
{
char buf[512];
char iid_buf[256];
JSStubGen *me = (JSStubGen *)arg;
ofstream *file = me->GetFile();
me->GetInterfaceIID(iid_buf, (char *)he->key);
sprintf(buf, kIIDStr, (char *)he->key, iid_buf);
*file << buf;
return HT_ENUMERATE_NEXT;
}
void
JSStubGen::GenerateIIDDefinitions(IdlSpecification &aSpec)
{
ofstream *file = GetFile();
*file << kIIDDefaultStr;
EnumerateAllObjects(aSpec, (PLHashEnumerator)JSStubGen_IIDEnumerator,
this, PR_FALSE);
*file << "\n";
}
static const char *kDefPtrStr =
"NS_DEF_PTR(nsIDOM%s);\n";
PRIntn
JSStubGen_DefPtrEnumerator(PLHashEntry *he, PRIntn i, void *arg)
{
char buf[512];
JSStubGen *me = (JSStubGen *)arg;
ofstream *file = me->GetFile();
sprintf(buf, kDefPtrStr, (char *)he->key);
*file << buf;
return HT_ENUMERATE_NEXT;
}
void
JSStubGen::GenerateDefPtrs(IdlSpecification &aSpec)
{
ofstream *file = GetFile();
EnumerateAllObjects(aSpec, (PLHashEnumerator)JSStubGen_DefPtrEnumerator,
this, PR_FALSE);
*file << "\n";
}
static const char *kPropEnumStr =
"//\n"
"// %s property ids\n"
"//\n"
"enum %s_slots {\n";
static const char *kPropSlotStr = " %s_%s = -%d%d";
void
JSStubGen::GeneratePropertySlots(IdlSpecification &aSpec)
{
char buf[512];
ofstream *file = GetFile();
int i, icount = aSpec.InterfaceCount();
for (i = 0; i < icount; i++) {
IdlInterface *iface = aSpec.GetInterfaceAt(i);
char iface_name[128];
strcpy(iface_name, iface->GetName());
StrUpr(iface_name);
int a, acount = iface->AttributeCount();
for (a = 0; a < acount; a++) {
IdlAttribute *attr = iface->GetAttributeAt(a);
char attr_name[128];
if ((i == 0) && (a == 0)) {
sprintf(buf, kPropEnumStr, iface->GetName(), iface->GetName());
*file << buf;
}
strcpy(attr_name, attr->GetName());
StrUpr(attr_name);
sprintf(buf, kPropSlotStr, iface_name, attr_name, i+1, a+1);
*file << buf;
if ((a == acount-1) && (i == icount-1)) {
*file << "\n};\n";
}
else {
*file << ",\n";
}
}
}
}
static const char *kPropFuncBeginStr = "\n"
"/***********************************************************************/\n"
"//\n"
"// %s Properties %ster\n"
"//\n"
"PR_STATIC_CALLBACK(JSBool)\n"
"%s%sProperty(JSContext *cx, JSObject *obj, jsval id, jsval *vp)\n"
"{\n"
" nsIDOM%s *a = (nsIDOM%s*)JS_GetPrivate(cx, obj);\n"
" NS_ASSERTION(nsnull != a, \"null pointer\");\n"
"\n"
" if (JSVAL_IS_INT(id)) {\n"
" switch(JSVAL_TO_INT(id)) {\n";
static const char *kPropFuncEndStr =
" default:\n"
" {\n"
" nsIScriptObject *object;\n"
" if (NS_OK == a->QueryInterface(kIScriptObjectIID, (void**)&object)) {\n"
" PRBool rval;\n"
" rval = object->%sProperty(cx, id, vp);\n"
" NS_RELEASE(object);\n"
" return rval;\n"
" }\n"
" }\n"
" }\n"
" }\n"
"\n"
" return PR_TRUE;\n"
"}\n";
#define JSGEN_GENERATE_PROPFUNCBEGIN(buffer, op, className) \
sprintf(buffer, kPropFuncBeginStr, className, op, op, className, className, className)
#define JSGEN_GENERATE_PROPFUNCEND(buffer, op) \
sprintf(buffer, kPropFuncEndStr, op)
static const char *kPropCaseBeginStr =
" case %s_%s:\n"
" {\n";
static const char *kPropCaseEndStr =
" break;\n"
" }\n";
static const char *kNoAttrStr = " case 0:";
void
JSStubGen::GeneratePropertyFunc(IdlSpecification &aSpec, PRBool aIsGetter)
{
char buf[1024];
ofstream *file = GetFile();
IdlInterface *primary_iface = aSpec.GetInterfaceAt(0);
PRBool any = PR_FALSE;
JSGEN_GENERATE_PROPFUNCBEGIN(buf, aIsGetter ? "Get" : "Set", primary_iface->GetName());
*file << buf;
int i, icount = aSpec.InterfaceCount();
for (i = 0; i < icount; i++) {
IdlInterface *iface = aSpec.GetInterfaceAt(i);
char iface_name[128];
strcpy(iface_name, iface->GetName());
StrUpr(iface_name);
int a, acount = iface->AttributeCount();
for (a = 0; a < acount; a++) {
IdlAttribute *attr = iface->GetAttributeAt(a);
char attr_name[128];
strcpy(attr_name, attr->GetName());
StrUpr(attr_name);
if (!aIsGetter && (attr->GetReadOnly())) {
continue;
}
any = PR_TRUE;
sprintf(buf, kPropCaseBeginStr, iface_name, attr_name);
*file << buf;
if (aIsGetter) {
GeneratePropGetter(file, *iface, *attr, iface == primary_iface);
}
else {
GeneratePropSetter(file, *iface, *attr, iface == primary_iface);
}
sprintf(buf, kPropCaseEndStr);
*file << buf;
}
}
if (!any) {
*file << kNoAttrStr;
}
JSGEN_GENERATE_PROPFUNCEND(buf, aIsGetter ? "Get" : "Set");
*file << buf;
}
static const char *kGetCaseStr =
" %s prop;\n"
" if (NS_OK == a->Get%s(%sprop)) {\n"
"%s"
" }\n"
" else {\n"
" return JS_FALSE;\n"
" }\n";
static const char *kGetCaseNonPrimaryStr =
" %s prop;\n"
" nsIDOM%s* b;\n"
" if (NS_OK == a->QueryInterface(kI%sIID, (void **)&b)) {\n"
" if(NS_OK == b->Get%s(%sprop)) {\n"
"%s"
" NS_RELEASE(b);\n"
" }\n"
" else {\n"
" NS_RELEASE(b);\n"
" return JS_FALSE;\n"
" }\n"
" }\n"
" else {\n"
" return JS_FALSE;\n"
" }\n";
static const char *kObjectGetCaseStr =
" // get the js object\n"
" if (prop != nsnull) {\n"
" nsIScriptObjectOwner *owner = nsnull;\n"
" if (NS_OK == prop->QueryInterface(kIScriptObjectOwnerIID, (void**)&owner)) {\n"
" JSObject *object = nsnull;\n"
" if (NS_OK == owner->GetScriptObject(cx, (void**)&object)) {\n"
" // set the return value\n"
" *vp = OBJECT_TO_JSVAL(object);\n"
" }\n"
" NS_RELEASE(owner);\n"
" }\n"
" NS_RELEASE(prop);\n"
" }\n"
" else {\n"
" *vp = JSVAL_NULL;\n"
" }\n";
static const char *kStringGetCaseStr =
" JSString *jsstring = JS_NewUCStringCopyN(cx, prop, prop.Length());\n"
" // set the return value\n"
" *vp = STRING_TO_JSVAL(jsstring);\n";
static const char *kIntGetCaseStr =
" *vp = INT_TO_JSVAL(prop);\n";
static const char *kBoolGetCaseStr =
" *vp = BOOLEAN_TO_JSVAL(prop);\n";
void
JSStubGen::GeneratePropGetter(ofstream *file,
IdlInterface &aInterface,
IdlAttribute &aAttribute,
PRBool aIsPrimary)
{
char buf[1024];
char attr_type[128];
char attr_name[128];
const char *case_str;
GetVariableTypeForLocal(attr_type, aAttribute);
GetCapitalizedName(attr_name, aAttribute);
switch (aAttribute.GetType()) {
case TYPE_BOOLEAN:
case_str = kBoolGetCaseStr;
break;
case TYPE_LONG:
case TYPE_SHORT:
case TYPE_ULONG:
case TYPE_USHORT:
case TYPE_CHAR:
case TYPE_INT:
case TYPE_UINT:
case_str = kIntGetCaseStr;
break;
case TYPE_STRING:
case_str = kStringGetCaseStr;
break;
case TYPE_OBJECT:
case_str = kObjectGetCaseStr;
break;
default:
// XXX Fail for other cases
break;
}
if (aIsPrimary) {
sprintf(buf, kGetCaseStr, attr_type, attr_name,
aAttribute.GetType() == TYPE_STRING ? "" : "&",
case_str);
}
else {
sprintf(buf, kGetCaseNonPrimaryStr, attr_type,
aInterface.GetName(), aInterface.GetName(),
attr_name,
aAttribute.GetType() == TYPE_STRING ? "" : "&",
case_str);
}
*file << buf;
}
static const char *kSetCaseStr =
" %s prop;\n"
"%s \n"
" a->Set%s(prop);\n"
" %s\n";
static const char *kSetCaseNonPrimaryStr =
" %s prop;\n"
"%s \n"
" nsIDOM%s *b;\n"
" if (NS_OK == a->QueryInterface(kI%sIID, (void **)&b)) {\n"
" b->Set%s(prop);\n"
" NS_RELEASE(b);\n"
" }\n"
" else {\n"
" %s\n"
" return JS_FALSE;\n"
" }\n"
" %s\n";
static const char *kObjectSetCaseStr =
" if (JSVAL_IS_OBJECT(*vp)) {\n"
" JSObject *jsobj = JSVAL_TO_OBJECT(*vp); \n"
" nsISupports *supports = (nsISupports *)JS_GetPrivate(cx, jsobj);\n"
" if (NS_OK != supports->QueryInterface(kI%sIID, (void **)&prop)) {\n"
" return JS_FALSE;\n"
" }\n"
" }\n"
" else if (JSVAL_IS_NULL(*vp)) {\n"
" prop = nsnull;\n"
" }\n"
" else {\n"
" return JS_FALSE;\n"
" }\n";
static const char *kObjectSetCaseEndStr = "if (prop) NS_RELEASE(prop);";
static const char *kStringSetCaseStr =
" JSString *jsstring;\n"
" if ((jsstring = JS_ValueToString(cx, *vp)) != nsnull) {\n"
" prop.SetString(JS_GetStringChars(jsstring));\n"
" }\n"
" else {\n"
" prop.SetString((const char *)nsnull);\n"
" }\n";
static const char *kIntSetCaseStr =
" int32 temp;\n"
" if (JSVAL_IS_NUMBER(*vp) && JS_ValueToInt32(cx, *vp, &temp)) {\n"
" prop = (%s)temp;\n"
" }\n"
" else {\n"
" return JS_FALSE;\n"
" }\n";
static const char *kBoolSetCaseStr =
" JSBool temp;\n"
" if (JSVAL_IS_BOOLEAN(*vp) && JS_ValueToBoolean(cx, *vp, &temp)) {\n"
" prop = (%s)temp;\n"
" }\n"
" else {\n"
" return JS_FALSE;\n"
" }\n";
void
JSStubGen::GeneratePropSetter(ofstream *file,
IdlInterface &aInterface,
IdlAttribute &aAttribute,
PRBool aIsPrimary)
{
char buf[1024];
char attr_type[128];
char attr_name[128];
char case_buf[1024];
const char *end_str;
GetVariableTypeForLocal(attr_type, aAttribute);
GetCapitalizedName(attr_name, aAttribute);
switch (aAttribute.GetType()) {
case TYPE_BOOLEAN:
sprintf(case_buf, kBoolSetCaseStr, attr_type);
break;
case TYPE_LONG:
case TYPE_SHORT:
case TYPE_ULONG:
case TYPE_USHORT:
case TYPE_CHAR:
case TYPE_INT:
case TYPE_UINT:
sprintf(case_buf, kIntSetCaseStr, attr_type);
break;
case TYPE_STRING:
strcpy(case_buf, kStringSetCaseStr);
break;
case TYPE_OBJECT:
sprintf(case_buf, kObjectSetCaseStr, aAttribute.GetTypeName());
break;
default:
// XXX Fail for other cases
break;
}
end_str = aAttribute.GetType() == TYPE_OBJECT ? kObjectSetCaseEndStr : "";
if (aIsPrimary) {
sprintf(buf, kSetCaseStr, attr_type, case_buf, attr_name, end_str);
}
else {
sprintf(buf, kSetCaseNonPrimaryStr, attr_type, case_buf,
aInterface.GetName(), aInterface.GetName(), attr_name,
end_str, end_str);
}
*file << buf;
}
static const char *kFinalizeStr =
"\n\n//\n"
"// %s finalizer\n"
"//\n"
"PR_STATIC_CALLBACK(void)\n"
"Finalize%s(JSContext *cx, JSObject *obj)\n"
"{\n"
" nsIDOM%s *a = (nsIDOM%s*)JS_GetPrivate(cx, obj);\n"
" \n"
" if (nsnull != a) {\n"
" // get the js object\n"
" nsIScriptObjectOwner *owner = nsnull;\n"
" if (NS_OK == a->QueryInterface(kIScriptObjectOwnerIID, (void**)&owner)) {\n"
" owner->ResetScriptObject();\n"
" NS_RELEASE(owner);\n"
" }\n"
"\n"
" NS_RELEASE(a);\n"
" }\n"
"}\n";
void
JSStubGen::GenerateFinalize(IdlSpecification &aSpec)
{
char buf[512];
ofstream *file = GetFile();
IdlInterface *iface = aSpec.GetInterfaceAt(0);
sprintf(buf, kFinalizeStr, iface->GetName(), iface->GetName(),
iface->GetName(), iface->GetName());
*file << buf;
}
static const char *kEnumerateStr =
"\n\n//\n"
"// %s enumerate\n"
"//\n"
"PR_STATIC_CALLBACK(JSBool)\n"
"Enumerate%s(JSContext *cx, JSObject *obj)\n"
"{\n"
" nsIDOM%s *a = (nsIDOM%s*)JS_GetPrivate(cx, obj);\n"
" \n"
" if (nsnull != a) {\n"
" // get the js object\n"
" nsIScriptObject *object;\n"
" if (NS_OK == a->QueryInterface(kIScriptObjectIID, (void**)&object)) {\n"
" object->EnumerateProperty(cx);\n"
" NS_RELEASE(object);\n"
" }\n"
" }\n"
" return JS_TRUE;\n"
"}\n";
#define JSGEN_GENERATE_ENUMERATE(buf, className) \
sprintf(buf, kEnumerateStr, className, className, className, className);
void
JSStubGen::GenerateEnumerate(IdlSpecification &aSpec)
{
char buf[512];
ofstream *file = GetFile();
IdlInterface *iface = aSpec.GetInterfaceAt(0);
char *name = iface->GetName();
JSGEN_GENERATE_ENUMERATE(buf, name);
*file << buf;
}
static const char *kResolveStr =
"\n\n//\n"
"// %s resolve\n"
"//\n"
"PR_STATIC_CALLBACK(JSBool)\n"
"Resolve%s(JSContext *cx, JSObject *obj, jsval id)\n"
"{\n"
" nsIDOM%s *a = (nsIDOM%s*)JS_GetPrivate(cx, obj);\n"
" \n"
" if (nsnull != a) {\n"
" // get the js object\n"
" nsIScriptObject *object;\n"
" if (NS_OK == a->QueryInterface(kIScriptObjectIID, (void**)&object)) {\n"
" object->Resolve(cx, id);\n"
" NS_RELEASE(object);\n"
" }\n"
" }\n"
" return JS_TRUE;\n"
"}\n";
#define JSGEN_GENERATE_RESOLVE(buf, className) \
sprintf(buf, kResolveStr, className, className, className, className);
void
JSStubGen::GenerateResolve(IdlSpecification &aSpec)
{
char buf[512];
ofstream *file = GetFile();
IdlInterface *iface = aSpec.GetInterfaceAt(0);
char *name = iface->GetName();
JSGEN_GENERATE_RESOLVE(buf, name);
*file << buf;
}
static const char *kMethodBeginStr = "\n\n"
"//\n"
"// Native method %s\n"
"//\n"
"PR_STATIC_CALLBACK(JSBool)\n"
"%s%s(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)\n"
"{\n"
" nsIDOM%s *nativeThis = (nsIDOM%s*)JS_GetPrivate(cx, obj);\n"
" NS_ASSERTION(nsnull != nativeThis, \"null pointer\");\n"
" JSBool rBool = JS_FALSE;\n"
" %s nativeRet;\n";
static const char *kMethodParamStr = " %s b%d;\n";
static const char *kMethodBodyBeginStr = "\n"
" *rval = JSVAL_NULL;\n"
" if (argc >= %d) {\n";
static const char *kMethodObjectParamStr = "\n"
" if (JSVAL_IS_OBJECT(argv[%d])) {\n"
" nsISupports *supports%d = (nsISupports *)JS_GetPrivate(cx, JSVAL_TO_OBJECT(argv[%d]));\n"
" NS_ASSERTION(nsnull != supports%d, \"null pointer\");\n"
"\n"
" if ((nsnull == supports%d) ||\n"
" (NS_OK != supports%d->QueryInterface(kI%sIID, (void **)(b%d.Query())))) {\n"
" return JS_FALSE;\n"
" }\n"
" }\n"
" else if (JSVAL_IS_NULL(argv[%d])){\n"
" b%d = nsnull;\n"
" }\n"
" else {\n"
" return JS_FALSE;\n"
" }\n";
#define JSGEN_GENERATE_OBJECTPARAM(buffer, paramNum, paramType) \
sprintf(buffer, kMethodObjectParamStr, paramNum, paramNum, \
paramNum, paramNum, paramNum, paramNum, paramType, \
paramNum, paramNum, paramNum)
static const char *kMethodStringParamStr = "\n"
" JSString *jsstring%d = JS_ValueToString(cx, argv[%d]);\n"
" if (nsnull != jsstring%d) {\n"
" b%d.SetString(JS_GetStringChars(jsstring%d));\n"
" }\n"
" else {\n"
" b%d.SetString(\"\"); // Should this really be null?? \n"
" }\n";
#define JSGEN_GENERATE_STRINGPARAM(buffer, paramNum) \
sprintf(buffer, kMethodStringParamStr, paramNum, paramNum, \
paramNum, paramNum, paramNum, paramNum)
static const char *kMethodBoolParamStr = "\n"
" if (!JS_ValueToBoolean(cx, argv[%d], &b%d)) {\n"
" return JS_FALSE;\n"
" }\n";
#define JSGEN_GENERATE_BOOLPARAM(buffer, paramNum) \
sprintf(buffer, kMethodBoolParamStr, paramNum, paramNum)
static const char *kMethodIntParamStr = "\n"
" if (!JS_ValueToInt32(cx, argv[%d], (int32 *)&b%d)) {\n"
" return JS_FALSE;\n"
" }\n";
#define JSGEN_GENERATE_INTPARAM(buffer, paramNum) \
sprintf(buffer, kMethodIntParamStr, paramNum, paramNum)
static const char *kMethodParamListStr = "b%d, ";
static const char *kMethodBodyMiddleStr =
"\n"
" if (NS_OK != nativeThis->%s(%s%snativeRet)) {\n"
" return JS_FALSE;\n"
" }\n"
"\n";
static const char *kMethodObjectRetStr =
" if (nativeRet != nsnull) {\n"
" nsIScriptObjectOwner *owner = nsnull;\n"
" if (NS_OK == nativeRet->QueryInterface(kIScriptObjectOwnerIID, (void**)&owner)) {\n"
" JSObject *object = nsnull;\n"
" if (NS_OK == owner->GetScriptObject(cx, (void**)&object)) {\n"
" // set the return value\n"
" *rval = OBJECT_TO_JSVAL(object);\n"
" }\n"
" NS_RELEASE(owner);\n"
" }\n"
" NS_RELEASE(nativeRet);\n"
" }\n"
" else {\n"
" *rval = JSVAL_NULL;\n"
" }\n";
static const char *kMethodStringRetStr =
" JSString *jsstring = JS_NewUCStringCopyN(cx, nativeRet, nativeRet.Length());\n"
" // set the return value\n"
" *rval = STRING_TO_JSVAL(jsstring);\n";
static const char *kMethodIntRetStr =
" *rval = INT_TO_JSVAL(nativeRet);\n";
static const char *kMethodBoolRetStr =
" *rval = BOOLEAN_TO_JSVAL(nativeRet);\n";
static const char *kMethodEndStr =
" }\n"
" else {\n"
" return JS_FALSE;\n"
" }\n"
"\n"
" return JS_TRUE;\n"
"}\n";
void
JSStubGen::GenerateMethods(IdlSpecification &aSpec)
{
char buf[1024];
ofstream *file = GetFile();
int i, icount = aSpec.InterfaceCount();
for (i = 0; i < icount; i++) {
IdlInterface *iface = aSpec.GetInterfaceAt(i);
int m, mcount = iface->FunctionCount();
for (m = 0; m < mcount; m++) {
IdlFunction *func = iface->GetFunctionAt(m);
IdlVariable *rval = func->GetReturnValue();
char method_name[128];
char return_type[128];
int p, pcount = func->ParameterCount();
GetCapitalizedName(method_name, *func);
GetVariableTypeForLocal(return_type, *rval);
sprintf(buf, kMethodBeginStr, method_name, iface->GetName(),
method_name, iface->GetName(), iface->GetName(),
return_type);
*file << buf;
for (p = 0; p < pcount; p++) {
IdlParameter *param = func->GetParameterAt(p);
GetVariableTypeForMethodLocal(return_type, *param);
sprintf(buf, kMethodParamStr, return_type, p);
*file << buf;
}
sprintf(buf, kMethodBodyBeginStr, func->ParameterCount());
*file << buf;
for (p = 0; p < pcount; p++) {
IdlParameter *param = func->GetParameterAt(p);
switch(param->GetType()) {
case TYPE_BOOLEAN:
JSGEN_GENERATE_BOOLPARAM(buf, p);
break;
case TYPE_LONG:
case TYPE_SHORT:
case TYPE_ULONG:
case TYPE_USHORT:
case TYPE_CHAR:
case TYPE_INT:
case TYPE_UINT:
JSGEN_GENERATE_INTPARAM(buf, p);
break;
case TYPE_STRING:
JSGEN_GENERATE_STRINGPARAM(buf, p);
break;
case TYPE_OBJECT:
JSGEN_GENERATE_OBJECTPARAM(buf, p, param->GetTypeName());
break;
default:
// XXX Fail for other cases
break;
}
*file << buf;
}
char param_buf[512];
char *param_ptr = param_buf;
param_buf[0] = '\0';
for (p = 0; p < pcount; p++) {
sprintf(param_ptr, kMethodParamListStr, p);
param_ptr += strlen(param_ptr);
}
sprintf(buf, kMethodBodyMiddleStr, method_name, param_buf,
rval->GetType() == TYPE_STRING ? "" : "&",
method_name);
*file << buf;
switch(rval->GetType()) {
case TYPE_BOOLEAN:
*file << kMethodBoolRetStr;
break;
case TYPE_LONG:
case TYPE_SHORT:
case TYPE_ULONG:
case TYPE_USHORT:
case TYPE_CHAR:
case TYPE_INT:
case TYPE_UINT:
*file << kMethodIntRetStr;
break;
case TYPE_STRING:
*file << kMethodStringRetStr;
break;
case TYPE_OBJECT:
*file << kMethodObjectRetStr;
break;
default:
// XXX Fail for other cases
break;
}
*file << kMethodEndStr;
}
}
}
static const char *kJSClassStr =
"\n\n/***********************************************************************/\n"
"//\n"
"// class for %s\n"
"//\n"
"JSClass %sClass = {\n"
" \"%s\", \n"
" JSCLASS_HAS_PRIVATE,\n"
" JS_PropertyStub,\n"
" JS_PropertyStub,\n"
" Get%sProperty,\n"
" Set%sProperty,\n"
" Enumerate%s,\n"
" Resolve%s,\n"
" JS_ConvertStub,\n"
" Finalize%s\n"
"};\n";
#define JSGEN_GENERATE_JSCLASS(buf, className) \
sprintf(buf, kJSClassStr, className, className, className, className, \
className, className, className, className);
void
JSStubGen::GenerateJSClass(IdlSpecification &aSpec)
{
char buf[512];
ofstream *file = GetFile();
IdlInterface *iface = aSpec.GetInterfaceAt(0);
char *name = iface->GetName();
JSGEN_GENERATE_JSCLASS(buf, name);
*file << buf;
}
static const char *kPropSpecBeginStr =
"\n\n//\n"
"// %s class properties\n"
"//\n"
"static JSPropertySpec %sProperties[] =\n"
"{\n";
static const char *kPropSpecEntryStr =
" {\"%s\", %s_%s, JSPROP_ENUMERATE%s},\n";
static const char *kPropSpecReadOnlyStr = " | JSPROP_READONLY";
static const char *kPropSpecEndStr =
" {0}\n"
"};\n";
void
JSStubGen::GenerateClassProperties(IdlSpecification &aSpec)
{
char buf[512];
ofstream *file = GetFile();
IdlInterface *primary_iface = aSpec.GetInterfaceAt(0);
sprintf(buf, kPropSpecBeginStr, primary_iface->GetName(),
primary_iface->GetName());
*file << buf;
int i, icount = aSpec.InterfaceCount();
for (i = 0; i < icount; i++) {
IdlInterface *iface = aSpec.GetInterfaceAt(i);
char iface_name[128];
strcpy(iface_name, iface->GetName());
StrUpr(iface_name);
int a, acount = iface->AttributeCount();
for (a = 0; a < acount; a++) {
IdlAttribute *attr = iface->GetAttributeAt(a);
char attr_name[128];
strcpy(attr_name, attr->GetName());
StrUpr(attr_name);
sprintf(buf, kPropSpecEntryStr, attr->GetName(),
iface_name, attr_name,
attr->GetReadOnly() ? kPropSpecReadOnlyStr : "");
*file << buf;
}
}
*file << kPropSpecEndStr;
}
static const char *kFuncSpecBeginStr =
"\n\n//\n"
"// %s class methods\n"
"//\n"
"static JSFunctionSpec %sMethods[] = \n"
"{\n";
static const char *kFuncSpecEntryStr =
" {\"%s\", %s%s, %d},\n";
static const char *kFuncSpecEndStr =
" {0}\n"
"};\n";
void
JSStubGen::GenerateClassFunctions(IdlSpecification &aSpec)
{
char buf[512];
ofstream *file = GetFile();
IdlInterface *primary_iface = aSpec.GetInterfaceAt(0);
sprintf(buf, kFuncSpecBeginStr, primary_iface->GetName(),
primary_iface->GetName());
*file << buf;
int i, icount = aSpec.InterfaceCount();
for (i = 0; i < icount; i++) {
IdlInterface *iface = aSpec.GetInterfaceAt(i);
int m, mcount = iface->FunctionCount();
for (m = 0; m < mcount; m++) {
char method_name[128];
IdlFunction *func = iface->GetFunctionAt(m);
GetCapitalizedName(method_name, *func);
sprintf(buf, kFuncSpecEntryStr, func->GetName(),
iface->GetName(), method_name,
func->ParameterCount());
*file << buf;
}
}
*file << kFuncSpecEndStr;
}
static const char *kConstructorStr =
"\n\n//\n"
"// %s constructor\n"
"//\n"
"PR_STATIC_CALLBACK(JSBool)\n"
"%s(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)\n"
"{\n"
" return JS_TRUE;\n"
"}\n";
void
JSStubGen::GenerateConstructor(IdlSpecification &aSpec)
{
char buf[512];
ofstream *file = GetFile();
IdlInterface *primary_iface = aSpec.GetInterfaceAt(0);
sprintf(buf, kConstructorStr, primary_iface->GetName(),
primary_iface->GetName());
*file << buf;
}
static const char *kInitClassBeginStr =
"\n\n//\n"
"// %s class initialization\n"
"//\n"
"nsresult NS_Init%sClass(JSContext *aContext, JSObject **aPrototype)\n"
"{\n"
" JSObject *proto = nsnull;\n"
" JSObject *parent_proto = nsnull;\n"
" JSObject *obj = JS_GetGlobalObject(aContext);\n"
" nsISupports *supports = (nsISupports *)JS_GetPrivate(aContext, obj);\n"
" nsIJSGlobalObject *global;\n"
"\n"
" if (NS_OK == supports->QueryInterface(kIJSGlobalObjectIID, (void **)&global)) {\n"
" *aPrototype = global->GetClassPrototype(aContext, \"%s\");\n"
" if (nsnull == *aPrototype) {\n";
#define JSGEN_GENERATE_INITCLASSBEGIN(buffer, className) \
sprintf(buffer, kInitClassBeginStr, className, className, className)
static const char *kGetParentProtoStr =
" if (NS_OK != NS_Init%sClass(aContext, &parent_proto)) {\n"
" return NS_ERROR_FAILURE;\n"
" }\n";
static const char *kInitClassBodyStr =
" *aPrototype = JS_InitClass(aContext, // context\n"
" obj, // global object\n"
" parent_proto, // parent proto \n"
" &%sClass, // JSClass\n"
" %s, // JSNative ctor\n"
" 0, // ctor args\n"
" %sProperties, // proto props\n"
" %sMethods, // proto funcs\n"
" nsnull, // ctor props (static)\n"
" nsnull); // ctor funcs (static)\n"
" if (nsnull == *aPrototype) {\n"
" NS_RELEASE(global);\n"
" return NS_ERROR_FAILURE;\n"
" }\n"
"\n"
" global->SetClassPrototype(aContext, \"%s\", *aPrototype);\n"
" }\n"
"\n";
#define JSGEN_GENERATE_INITCLASSBODY(buffer, className) \
sprintf(buffer, kInitClassBodyStr, className, className, \
className, className, className)
static const char *kInitClassEndStr =
" return NS_OK;\n"
" }\n"
" else {\n"
" return NS_ERROR_FAILURE;\n"
" }\n"
"}\n";
void
JSStubGen::GenerateInitClass(IdlSpecification &aSpec)
{
char buf[2048];
ofstream *file = GetFile();
IdlInterface *primary_iface = aSpec.GetInterfaceAt(0);
char *primary_class = primary_iface->GetName();
JSGEN_GENERATE_INITCLASSBEGIN(buf, primary_class);
*file << buf;
if (primary_iface->BaseClassCount() > 0) {
char *base_class = primary_iface->GetBaseClassAt(0);
sprintf(buf, kGetParentProtoStr, base_class);
*file << buf;
}
JSGEN_GENERATE_INITCLASSBODY(buf, primary_class);
*file << buf;
*file << kInitClassEndStr;
}
static const char *kNewJSObjectStr =
"\n\n//\n"
"// Method for creating a new %s JavaScript object\n"
"//\n"
"nsresult NS_NewScript%s(JSContext *aContext, nsIDOM%s *aSupports, JSObject *aParent, JSObject **aReturn)\n"
"{\n"
" NS_PRECONDITION(nsnull != aContext && nsnull != aSupports && nsnull != aReturn, \"null argument to NS_NewScript%s\");\n"
" JSObject *proto;\n"
" NS_Init%sClass(aContext, &proto);\n"
"\n"
" // create a js object for this class\n"
" *aReturn = JS_NewObject(aContext, &%sClass, proto, aParent);\n"
" if (nsnull != *aReturn) {\n"
" // connect the native object to the js object\n"
" JS_SetPrivate(aContext, *aReturn, aSupports);\n"
" NS_ADDREF(aSupports);\n"
" }\n"
" else {\n"
" return NS_ERROR_FAILURE; \n"
" }\n"
"\n"
" return NS_OK;\n"
"}\n";
#define JSGEN_GENERATE_NEWJSOBJECT(buffer, className) \
sprintf(buffer, kNewJSObjectStr, className, className, \
className, className, className, className)
void
JSStubGen::GenerateNew(IdlSpecification &aSpec)
{
char buf[2048];
ofstream *file = GetFile();
IdlInterface *primary_iface = aSpec.GetInterfaceAt(0);
char *primary_class = primary_iface->GetName();
JSGEN_GENERATE_NEWJSOBJECT(buf, primary_class);
*file << buf;
}
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