gecko-dev/dom/tools/XPCOMGen.cpp

635 lines
18 KiB
C++

/* -*- 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 "XPComGen.h"
#include "Exceptions.h"
#include "plhash.h"
#include "IdlSpecification.h"
#include "IdlInterface.h"
#include "IdlVariable.h"
#include "IdlAttribute.h"
#include "IdlFunction.h"
#include "IdlParameter.h"
static const char *kFilePrefix = "nsIDOM";
static const char *kFileSuffix = "h";
static const char *kIfdefStr = "\n"
"#ifndef nsIDOM%s_h__\n"
"#define nsIDOM%s_h__\n\n";
static const char *kIncludeDefaultsStr =
"#include \"nsISupports.h\"\n"
"#include \"nsString.h\"\n"
"#include \"nsIScriptContext.h\"\n";
static const char *kIncludeStr = "#include \"nsIDOM%s.h\"\n";
static const char *kIncludeJSStr = "#include \"jsapi.h\"\n";
static const char *kForwardClassStr = "class nsIDOM%s;\n";
static const char *kUuidStr =
"#define %s \\\n"
"%s\n\n";
static const char *kNoUuidStr =
"--- IID GOES HERE ---\n\n";
static const char *kClassDeclStr = "class nsIDOM%s : ";
static const char *kBaseClassStr = "public nsIDOM%s";
static const char *kNoBaseClassStr = "public nsISupports";
static const char *kClassPrologStr = " {\npublic:\n";
static const char *kEnumDeclBeginStr = " enum {\n";
static const char *kEnumEntryStr = " %s = %d%s\n";
static const char *kEnumDeclEndStr = " };\n";
static const char *kGetterMethodDeclStr = "\n NS_IMETHOD Get%s(%s%s a%s)=0;\n";
static const char *kGetterMethodDeclNonVirtualStr = " NS_IMETHOD Get%s(%s%s a%s); \\\n";
static const char *kGetterMethodForwardStr = " NS_IMETHOD Get%s(%s%s a%s) { return _to##Get%s(a%s); } \\\n";
static const char *kSetterMethodDeclStr = " NS_IMETHOD Set%s(%s%s a%s)=0;\n";
static const char *kSetterMethodDeclNonVirtualStr = " NS_IMETHOD Set%s(%s%s a%s); \\\n";
static const char *kSetterMethodForwardStr = " NS_IMETHOD Set%s(%s%s a%s) { return _to##Set%s(a%s); } \\\n";
static const char *kMethodDeclStr = "\n NS_IMETHOD %s(%s)=0;\n";
static const char *kMethodDeclNonVirtualStr = " NS_IMETHOD %s(%s); \\\n";
static const char *kMethodForwardStr = " NS_IMETHOD %s(%s) { return _to##%s(%s); } \\\n";
static const char *kParamStr = "%s a%s";
static const char *kCallParamStr = "a%s";
static const char *kDelimiterStr = ", ";
static const char *kEllipsisParamStr = "JSContext *cx, jsval *argv, PRUint32 argc";
static const char *kEllipsisCallStr = "cx, argv, argc";
static const char *kReturnStr = "%s%s aReturn";
static const char *kReturnCallStr = "aReturn";
static const char *kClassEpilogStr = "};\n\n";
static const char *kFactoryClassDeclBeginStr =
"class nsIDOM%sFactory : public nsISupports {\n"
"public:\n";
static const char *kConstructorDeclStr = " NS_IMETHOD CreateInstance(%snsIDOM%s **aReturn)=0;\n";
static const char *kFactoryClassDeclEndStr = "\n};\n\n";
static const char *kGlobalInitClassStr = "extern nsresult NS_Init%sClass(nsIScriptContext *aContext, nsIScriptGlobalObject *aGlobal);\n\n";
static const char *kInitClassStr = "extern nsresult NS_Init%sClass(nsIScriptContext *aContext, void **aPrototype);\n\n";
static const char *kNewObjStr = "extern \"C\" NS_DOM nsresult NS_NewScript%s(nsIScriptContext *aContext, nsISupports *aSupports, nsISupports *aParent, void **aReturn);\n\n";
static const char *kMethodDeclMacroStr = "\n#define NS_DECL_IDOM%s \\\n";
static const char *kMethodForwardMacroStr = "\n#define NS_FORWARD_IDOM%s(_to) \\\n";
static const char *kEndifStr = "#endif // nsIDOM%s_h__\n";
XPCOMGen::XPCOMGen()
{
}
XPCOMGen::~XPCOMGen()
{
}
void
XPCOMGen::Generate(char *aFileName,
char *aOutputDirName,
IdlSpecification &aSpec,
int aIsGlobal)
{
mIsGlobal = aIsGlobal;
int i, icount = aSpec.InterfaceCount();
for (i = 0; i < icount; i++) {
IdlInterface *iface = aSpec.GetInterfaceAt(i);
if (iface) {
if (!OpenFile(iface->GetName(), aOutputDirName,
kFilePrefix, kFileSuffix)) {
throw new CantOpenFileException(aFileName);
}
GenerateNPL();
GenerateIfdef(*iface);
GenerateIncludes(*iface);
GenerateForwardDecls(*iface);
GenerateGuid(*iface);
GenerateClassDecl(*iface);
GenerateEnums(*iface);
GenerateMethods(*iface);
GenerateEndClassDecl();
GenerateDeclMacro(*iface);
GenerateForwardMacro(*iface);
if (i == 0) {
GenerateFactory(*iface);
GenerateEpilog(*iface, PR_TRUE);
}
else {
GenerateEpilog(*iface, PR_FALSE);
}
CloseFile();
}
}
}
void
XPCOMGen::GenerateIfdef(IdlInterface& aInterface)
{
char buf[512];
ofstream *file = GetFile();
sprintf(buf, kIfdefStr, aInterface.GetName(), aInterface.GetName());
*file << buf;
}
void
XPCOMGen::GenerateIncludes(IdlInterface &aInterface)
{
char buf[512];
ofstream *file = GetFile();
*file << kIncludeDefaultsStr;
int b, bcount = aInterface.BaseClassCount();
for (b = 0; b < bcount; b++) {
sprintf(buf, kIncludeStr, aInterface.GetBaseClassAt(b));
*file << buf;
}
int m, mcount = aInterface.FunctionCount();
for (m = 0; m < mcount; m++) {
IdlFunction *func = aInterface.GetFunctionAt(m);
if (func->GetHasEllipsis()) {
*file << kIncludeJSStr;
break;
}
}
*file << "\n";
}
static PRIntn
ForwardDeclEnumerator(PLHashEntry *he, PRIntn i, void *arg)
{
char buf[512];
ofstream *file = (ofstream *)arg;
sprintf(buf, kForwardClassStr, (char *)he->key);
*file << buf;
return HT_ENUMERATE_NEXT;
}
void
XPCOMGen::GenerateForwardDecls(IdlInterface &aInterface)
{
ofstream *file = GetFile();
EnumerateAllObjects(aInterface, (PLHashEnumerator)ForwardDeclEnumerator,
file);
*file << "\n";
}
void
XPCOMGen::GenerateGuid(IdlInterface &aInterface)
{
char buf[512];
char uuid_buf[256];
ofstream *file = GetFile();
char *uuid;
uuid = aInterface.GetIIDAt(0);
GetInterfaceIID(uuid_buf, aInterface);
if (NULL != uuid) {
sprintf(buf, kUuidStr, uuid_buf, uuid);
}
else {
sprintf(buf, kUuidStr, uuid_buf, kNoUuidStr);
}
*file << buf;
}
void
XPCOMGen::GenerateClassDecl(IdlInterface &aInterface)
{
char buf[512];
ofstream *file = GetFile();
sprintf(buf, kClassDeclStr, aInterface.GetName());
*file << buf;
if (aInterface.BaseClassCount() > 0) {
int b, bcount = aInterface.BaseClassCount();
for (b = 0; b < bcount; b++) {
if (b > 0) {
*file << kDelimiterStr;
}
sprintf(buf, kBaseClassStr, aInterface.GetBaseClassAt(b));
*file << buf;
}
}
else {
*file << kNoBaseClassStr;
}
*file << kClassPrologStr;
}
void
XPCOMGen::GenerateEnums(IdlInterface &aInterface)
{
char buf[512];
ofstream *file = GetFile();
if (aInterface.ConstCount() > 0) {
int c, ccount = aInterface.ConstCount();
*file << kEnumDeclBeginStr;
for (c = 0; c < ccount; c++) {
IdlVariable *var = aInterface.GetConstAt(c);
if (NULL != var) {
sprintf(buf, kEnumEntryStr, var->GetName(), var->GetLongValue(),
((c < ccount-1) ? "," : ""));
*file << buf;
}
}
*file << kEnumDeclEndStr;
}
}
void
XPCOMGen::GenerateMethods(IdlInterface &aInterface)
{
char buf[512];
char name_buf[128];
char type_buf[128];
ofstream *file = GetFile();
int a, acount = aInterface.AttributeCount();
for (a = 0; a < acount; a++) {
IdlAttribute *attr = aInterface.GetAttributeAt(a);
GetVariableTypeForParameter(type_buf, *attr);
GetCapitalizedName(name_buf, *attr);
sprintf(buf, kGetterMethodDeclStr, name_buf, type_buf,
attr->GetType() == TYPE_STRING ? "" : "*", name_buf);
*file << buf;
if (!attr->GetReadOnly()) {
sprintf(buf, kSetterMethodDeclStr, name_buf,
attr->GetType() == TYPE_STRING ? "const " : "", type_buf,
name_buf);
*file << buf;
}
}
int m, mcount = aInterface.FunctionCount();
for (m = 0; m < mcount; m++) {
char param_buf[256];
char *cur_param = param_buf;
IdlFunction *func = aInterface.GetFunctionAt(m);
// Don't generate a constructor method
if (strcmp(func->GetName(), aInterface.GetName()) == 0) {
continue;
}
int p, pcount = func->ParameterCount();
for (p = 0; p < pcount; p++) {
IdlParameter *param = func->GetParameterAt(p);
if (p > 0) {
strcpy(cur_param, kDelimiterStr);
cur_param += strlen(kDelimiterStr);
}
GetParameterType(type_buf, *param);
GetCapitalizedName(name_buf, *param);
sprintf(cur_param, kParamStr, type_buf, name_buf);
cur_param += strlen(cur_param);
}
if (func->GetHasEllipsis()) {
if (pcount > 0) {
strcpy(cur_param, kDelimiterStr);
cur_param += strlen(kDelimiterStr);
}
sprintf(cur_param, kEllipsisParamStr);
cur_param += strlen(cur_param);
}
IdlVariable *rval = func->GetReturnValue();
if (rval->GetType() != TYPE_VOID) {
if ((pcount > 0) || func->GetHasEllipsis()) {
strcpy(cur_param, kDelimiterStr);
cur_param += strlen(kDelimiterStr);
}
GetVariableTypeForParameter(type_buf, *rval);
sprintf(cur_param, kReturnStr, type_buf,
rval->GetType() == TYPE_STRING ? "" : "*");
}
else {
*cur_param++ = '\0';
}
GetCapitalizedName(name_buf, *func);
sprintf(buf, kMethodDeclStr, name_buf, param_buf);
*file << buf;
}
}
void
XPCOMGen::GenerateDeclMacro(IdlInterface &aInterface)
{
char buf[512];
char name_buf[128];
char type_buf[128];
ofstream *file = GetFile();
strcpy(name_buf, aInterface.GetName());
StrUpr(name_buf);
sprintf(buf, kMethodDeclMacroStr, name_buf);
*file << buf;
int a, acount = aInterface.AttributeCount();
for (a = 0; a < acount; a++) {
IdlAttribute *attr = aInterface.GetAttributeAt(a);
GetVariableTypeForParameter(type_buf, *attr);
GetCapitalizedName(name_buf, *attr);
sprintf(buf, kGetterMethodDeclNonVirtualStr, name_buf, type_buf,
attr->GetType() == TYPE_STRING ? "" : "*", name_buf);
*file << buf;
if (!attr->GetReadOnly()) {
sprintf(buf, kSetterMethodDeclNonVirtualStr, name_buf,
attr->GetType() == TYPE_STRING ? "const " : "", type_buf,
name_buf);
*file << buf;
}
}
int m, mcount = aInterface.FunctionCount();
for (m = 0; m < mcount; m++) {
char param_buf[256];
char *cur_param = param_buf;
IdlFunction *func = aInterface.GetFunctionAt(m);
// Don't generate a constructor method
if (strcmp(func->GetName(), aInterface.GetName()) == 0) {
continue;
}
int p, pcount = func->ParameterCount();
for (p = 0; p < pcount; p++) {
IdlParameter *param = func->GetParameterAt(p);
if (p > 0) {
strcpy(cur_param, kDelimiterStr);
cur_param += strlen(kDelimiterStr);
}
GetParameterType(type_buf, *param);
GetCapitalizedName(name_buf, *param);
sprintf(cur_param, kParamStr, type_buf, name_buf);
cur_param += strlen(cur_param);
}
if (func->GetHasEllipsis()) {
if (pcount > 0) {
strcpy(cur_param, kDelimiterStr);
cur_param += strlen(kDelimiterStr);
}
sprintf(cur_param, kEllipsisParamStr);
cur_param += strlen(cur_param);
}
IdlVariable *rval = func->GetReturnValue();
if (rval->GetType() != TYPE_VOID) {
if ((pcount > 0) || func->GetHasEllipsis()) {
strcpy(cur_param, kDelimiterStr);
cur_param += strlen(kDelimiterStr);
}
GetVariableTypeForParameter(type_buf, *rval);
sprintf(cur_param, kReturnStr, type_buf,
rval->GetType() == TYPE_STRING ? "" : "*");
}
else {
*cur_param++ = '\0';
}
GetCapitalizedName(name_buf, *func);
sprintf(buf, kMethodDeclNonVirtualStr, name_buf, param_buf);
*file << buf;
}
*file << "\n\n";
}
void
XPCOMGen::GenerateForwardMacro(IdlInterface &aInterface)
{
char buf[512];
char name_buf[128];
char type_buf[128];
ofstream *file = GetFile();
strcpy(name_buf, aInterface.GetName());
StrUpr(name_buf);
sprintf(buf, kMethodForwardMacroStr, name_buf);
*file << buf;
int a, acount = aInterface.AttributeCount();
for (a = 0; a < acount; a++) {
IdlAttribute *attr = aInterface.GetAttributeAt(a);
GetVariableTypeForParameter(type_buf, *attr);
GetCapitalizedName(name_buf, *attr);
sprintf(buf, kGetterMethodForwardStr, name_buf, type_buf,
attr->GetType() == TYPE_STRING ? "" : "*", name_buf,
name_buf, name_buf);
*file << buf;
if (!attr->GetReadOnly()) {
sprintf(buf, kSetterMethodForwardStr, name_buf,
attr->GetType() == TYPE_STRING ? "const " : "", type_buf,
name_buf, name_buf, name_buf);
*file << buf;
}
}
int m, mcount = aInterface.FunctionCount();
for (m = 0; m < mcount; m++) {
char param_buf[256];
char *cur_param = param_buf;
char param_buf2[256];
char *cur_param2 = param_buf2;
IdlFunction *func = aInterface.GetFunctionAt(m);
// Don't generate a constructor method
if (strcmp(func->GetName(), aInterface.GetName()) == 0) {
continue;
}
int p, pcount = func->ParameterCount();
for (p = 0; p < pcount; p++) {
IdlParameter *param = func->GetParameterAt(p);
if (p > 0) {
strcpy(cur_param, kDelimiterStr);
cur_param += strlen(kDelimiterStr);
strcpy(cur_param2, kDelimiterStr);
cur_param2 += strlen(kDelimiterStr);
}
GetParameterType(type_buf, *param);
GetCapitalizedName(name_buf, *param);
sprintf(cur_param, kParamStr, type_buf, name_buf);
cur_param += strlen(cur_param);
sprintf(cur_param2, kCallParamStr, name_buf);
cur_param2 += strlen(cur_param2);
}
if (func->GetHasEllipsis()) {
if (pcount > 0) {
strcpy(cur_param, kDelimiterStr);
cur_param += strlen(kDelimiterStr);
strcpy(cur_param2, kDelimiterStr);
cur_param2 += strlen(kDelimiterStr);
}
sprintf(cur_param, kEllipsisParamStr);
cur_param += strlen(cur_param);
sprintf(cur_param2, kEllipsisCallStr);
cur_param2 += strlen(cur_param2);
}
IdlVariable *rval = func->GetReturnValue();
if (rval->GetType() != TYPE_VOID) {
if ((pcount > 0) || func->GetHasEllipsis()) {
strcpy(cur_param, kDelimiterStr);
cur_param += strlen(kDelimiterStr);
strcpy(cur_param2, kDelimiterStr);
cur_param2 += strlen(kDelimiterStr);
}
GetVariableTypeForParameter(type_buf, *rval);
sprintf(cur_param, kReturnStr, type_buf,
rval->GetType() == TYPE_STRING ? "" : "*");
strcpy(cur_param2, kReturnCallStr);
}
else {
*cur_param++ = '\0';
*cur_param2++ = '\0';
}
GetCapitalizedName(name_buf, *func);
sprintf(buf, kMethodForwardStr, name_buf, param_buf, name_buf, param_buf2);
*file << buf;
}
*file << "\n\n";
}
void
XPCOMGen::GenerateEndClassDecl()
{
ofstream *file = GetFile();
*file << kClassEpilogStr;
}
void
XPCOMGen::GenerateFactory(IdlInterface &aInterface)
{
char buf[512];
ofstream *file = GetFile();
char *iface_name = aInterface.GetName();
char name_buf[128];
char type_buf[128];
char uuid_buf[128];
char param_buf[256];
char *cur_param = param_buf;
IdlFunction *constructor;
*cur_param = '\0';
if (HasConstructor(aInterface, &constructor)) {
strcpy(name_buf, iface_name);
strcat(name_buf, "Factory");
char *iid = aInterface.GetIIDAt(1);
GetInterfaceIID(uuid_buf, name_buf);
if (NULL != iid) {
sprintf(buf, kUuidStr, uuid_buf, iid);
}
else {
sprintf(buf, kUuidStr, uuid_buf, kNoUuidStr);
}
*file << buf;
sprintf(buf, kFactoryClassDeclBeginStr, iface_name);
*file << buf;
int p, pcount = constructor->ParameterCount();
for (p = 0; p < pcount; p++) {
IdlParameter *param = constructor->GetParameterAt(p);
if (p > 0) {
strcpy(cur_param, kDelimiterStr);
cur_param += strlen(kDelimiterStr);
}
GetParameterType(type_buf, *param);
GetCapitalizedName(name_buf, *param);
sprintf(cur_param, kParamStr, type_buf, name_buf);
cur_param += strlen(cur_param);
}
if (constructor->GetHasEllipsis()) {
if (pcount > 0) {
strcpy(cur_param, kDelimiterStr);
cur_param += strlen(kDelimiterStr);
}
sprintf(cur_param, kEllipsisParamStr);
cur_param += strlen(cur_param);
}
GetCapitalizedName(name_buf, *constructor);
sprintf(buf, kConstructorDeclStr, param_buf, name_buf);
*file << buf;
*file << kFactoryClassDeclEndStr;
}
}
void
XPCOMGen::GenerateEpilog(IdlInterface &aInterface, PRBool aIsPrimary)
{
char buf[512];
ofstream *file = GetFile();
char *iface_name = aInterface.GetName();
if (aIsPrimary) {
if (mIsGlobal) {
sprintf(buf, kGlobalInitClassStr, iface_name);
}
else {
sprintf(buf, kInitClassStr, iface_name);
}
*file << buf;
sprintf(buf, kNewObjStr, iface_name);
*file << buf;
}
sprintf(buf, kEndifStr, iface_name);
*file << buf;
}