/**************************************************************
 * 
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * 
 *************************************************************/


// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_idlc.hxx"
#include <idlc/idlc.hxx>
#include <idlc/errorhandler.hxx>
#include <idlc/astscope.hxx>
#include <idlc/astmodule.hxx>
#include <idlc/astservice.hxx>
#include <idlc/astconstants.hxx>
#include <idlc/astexception.hxx>
#include <idlc/astunion.hxx>
#include <idlc/astenum.hxx>
#include <idlc/astinterface.hxx>
#include <idlc/astoperation.hxx>
#include <idlc/astbasetype.hxx>
#include "idlc/astdeclaration.hxx"
#include "idlc/astparameter.hxx"
#include "idlc/astsequence.hxx"
#include "idlc/asttype.hxx"
#include "idlc/asttypedef.hxx"

#include "osl/diagnose.h"

using namespace ::rtl;

AstDeclaration* SAL_CALL scopeAsDecl(AstScope* pScope)
{
	if (pScope == NULL) return NULL;

	switch( pScope->getScopeNodeType() ) 
	{
		case NT_service:
		case NT_singleton:
			return (AstService*)(pScope);
		case NT_module:
		case NT_root:
			return (AstModule*)(pScope);
		case NT_constants:
			return (AstConstants*)(pScope);
		case NT_interface:
			return (AstInterface*)(pScope);
		case NT_operation:
			return (AstOperation*)(pScope);
		case NT_exception:
			return (AstException*)(pScope);
		case NT_union:
			return (AstUnion*)(pScope);
		case NT_struct:
			return (AstStruct*)(pScope);
		case NT_enum:
			return (AstEnum*)(pScope);
		default:
			return NULL;
	}
}	

AstScope* SAL_CALL declAsScope(AstDeclaration* pDecl)
{
	if (pDecl == NULL) return NULL;

	switch(pDecl->getNodeType()) 
	{
		case NT_interface:
			return (AstInterface*)(pDecl);
		case NT_service:
		case NT_singleton:
			return (AstService*)(pDecl);
		case NT_module:
		case NT_root:
			return (AstModule*)(pDecl);
		case NT_constants:
			return (AstConstants*)(pDecl);
		case NT_exception:
			return (AstException*)(pDecl);
		case NT_union:
			return (AstUnion*)(pDecl);
		case NT_struct:
			return (AstStruct*)(pDecl);
		case NT_enum:
			return (AstEnum*)(pDecl);
		case NT_operation:
			return (AstOperation*)(pDecl);
		default:
			return NULL;
   }
}	

static void SAL_CALL predefineXInterface(AstModule* pRoot)
{
    // define the modules  com::sun::star::uno
    AstModule* pParentScope = pRoot;
    AstModule* pModule = new AstModule(OString("com"), pParentScope);
    pModule->setPredefined(true);
    pParentScope->addDeclaration(pModule);
    pParentScope = pModule;
    pModule = new AstModule(OString("sun"), pParentScope);
    pModule->setPredefined(true);
    pParentScope->addDeclaration(pModule);                            
    pParentScope = pModule;
    pModule = new AstModule(OString("star"), pParentScope);
    pModule->setPredefined(true);
    pParentScope->addDeclaration(pModule);
    pParentScope = pModule;
    pModule = new AstModule(OString("uno"), pParentScope);
    pModule->setPredefined(true);
    pParentScope->addDeclaration(pModule);
    pParentScope = pModule;

    // define XInterface
    AstInterface* pInterface = new AstInterface(OString("XInterface"), NULL, pParentScope);
    pInterface->setDefined();
    pInterface->setPredefined(true);
    pInterface->setPublished();
    pParentScope->addDeclaration(pInterface);

    // define XInterface::queryInterface
    AstOperation* pOp = new AstOperation(0, (AstType*)(pRoot->lookupPrimitiveType(ET_any)),
                                         OString("queryInterface"), pInterface);
    AstParameter* pParam = new AstParameter(DIR_IN, false,
                                            (AstType*)(pRoot->lookupPrimitiveType(ET_type)),
                                            OString("aType"), pOp);
    pOp->addDeclaration(pParam);
    pInterface->addMember(pOp);

    // define XInterface::acquire
    pOp = new AstOperation(1, (AstType*)(pRoot->lookupPrimitiveType(ET_void)),
                                         OString("acquire"), pInterface);
    pInterface->addMember(pOp);
    
    // define XInterface::release
    pOp = new AstOperation(1, (AstType*)(pRoot->lookupPrimitiveType(ET_void)),
                                         OString("release"), pInterface);
    pInterface->addMember(pOp);
}

static void SAL_CALL initializePredefinedTypes(AstModule* pRoot)
{
	AstBaseType* pPredefined = NULL;
	if ( pRoot )
	{
		 pPredefined = new AstBaseType(ET_long, OString("long"), pRoot);
		 pRoot->addDeclaration(pPredefined);
		 
		 pPredefined = new AstBaseType(ET_ulong, OString("unsigned long"), pRoot);
		 pRoot->addDeclaration(pPredefined);

		 pPredefined = new AstBaseType(ET_hyper, OString("hyper"), pRoot);
		 pRoot->addDeclaration(pPredefined);

		 pPredefined = new AstBaseType(ET_uhyper, OString("unsigned hyper"), pRoot);
		 pRoot->addDeclaration(pPredefined);
		 
		 pPredefined = new AstBaseType(ET_short, OString("short"), pRoot);
		 pRoot->addDeclaration(pPredefined);
		 
		 pPredefined = new AstBaseType(ET_ushort, OString("unsigned short"), pRoot);
		 pRoot->addDeclaration(pPredefined);
		 
		 pPredefined = new AstBaseType(ET_float, OString("float"), pRoot);
		 pRoot->addDeclaration(pPredefined);
		 
		 pPredefined = new AstBaseType(ET_double, OString("double"), pRoot);
		 pRoot->addDeclaration(pPredefined);
		 
		 pPredefined = new AstBaseType(ET_char, OString("char"), pRoot);
		 pRoot->addDeclaration(pPredefined);
		 
		 pPredefined = new AstBaseType(ET_byte, OString("byte"), pRoot);
		 pRoot->addDeclaration(pPredefined);
		 
		 pPredefined = new AstBaseType(ET_any, OString("any"), pRoot);
		 pRoot->addDeclaration(pPredefined);

		 pPredefined = new AstBaseType(ET_string, OString("string"), pRoot);
		 pRoot->addDeclaration(pPredefined);
		 
		 pPredefined = new AstBaseType(ET_type, OString("type"), pRoot);
		 pRoot->addDeclaration(pPredefined);
		 
		 pPredefined = new AstBaseType(ET_boolean, OString("boolean"), pRoot);
		 pRoot->addDeclaration(pPredefined);
		 
		 pPredefined = new AstBaseType(ET_void, OString("void"), pRoot);
		 pRoot->addDeclaration(pPredefined);
	}
}

Idlc::Idlc(Options* pOptions)
	: m_pOptions(pOptions)
	, m_bIsDocValid(sal_False)
	, m_bIsInMainfile(sal_True)
	, m_published(false)
	, m_errorCount(0)
	, m_warningCount(0)
	, m_lineNumber(0)
	, m_parseState(PS_NoState)
{
	m_pScopes = new AstStack();
	// init root object after construction
	m_pRoot = NULL;
	m_pErrorHandler = new ErrorHandler();		
	m_bGenerateDoc = m_pOptions->isValid("-C");
}	

Idlc::~Idlc()
{
	if (m_pRoot)
		delete m_pRoot;
	if (m_pScopes)
		delete m_pScopes;
	if (m_pErrorHandler)
		delete m_pErrorHandler;
}	

void Idlc::init()
{
	if ( m_pRoot )
		delete m_pRoot;
		
	m_pRoot = new AstModule(NT_root, OString(), NULL);

	// push the root node on the stack
	m_pScopes->push(m_pRoot);
	initializePredefinedTypes(m_pRoot);
    predefineXInterface(m_pRoot);
}
	
void Idlc::reset()
{
	m_bIsDocValid = sal_False;
	m_bIsInMainfile = sal_True;
    m_published = false;

	m_errorCount = 0;
	m_warningCount = 0;
	m_lineNumber = 0;
	m_parseState = PS_NoState;

	m_fileName = OString();
	m_mainFileName = OString();
	m_realFileName = OString();
	m_documentation = OString();
	
	m_pScopes->clear();
	if ( m_pRoot)
		delete m_pRoot;

	m_pRoot = new AstModule(NT_root, OString(), NULL);
	
	// push the root node on the stack
	m_pScopes->push(m_pRoot);
	initializePredefinedTypes(m_pRoot);	
}

sal_Bool Idlc::isDocValid()
{ 
	if ( m_bGenerateDoc )
		return m_bIsDocValid; 
	return sal_False;;
}
	 
static Idlc* pStaticIdlc = NULL;

Idlc* SAL_CALL idlc()
{
	return pStaticIdlc;
}	

Idlc* SAL_CALL setIdlc(Options* pOptions)
{
	if ( pStaticIdlc )
	{
		delete pStaticIdlc;
	}
	pStaticIdlc = new Idlc(pOptions);
	pStaticIdlc->init();
	return pStaticIdlc;
}	

AstDeclaration const * resolveTypedefs(AstDeclaration const * type) {
    if (type != 0) {
        while (type->getNodeType() == NT_typedef) {
            type = static_cast< AstTypeDef const * >(type)->getBaseType();
        }
    }
    return type;
}

AstDeclaration const * deconstructAndResolveTypedefs(
    AstDeclaration const * type, sal_Int32 * rank)
{
    *rank = 0;
    for (;;) {
        if (type == 0) {
            return 0;
        }
        switch (type->getNodeType()) {
        case NT_typedef:
            type = static_cast< AstTypeDef const * >(type)->getBaseType();
            break;
        case NT_sequence:
            ++(*rank);
            type = static_cast< AstSequence const * >(type)->getMemberType();
            break;
        default:
            return type;
        }
    }
}

AstInterface const * resolveInterfaceTypedefs(AstType const * type) {
    AstDeclaration const * decl = resolveTypedefs(type);
    OSL_ASSERT(decl->getNodeType() == NT_interface);
    return static_cast< AstInterface const * >(decl);
}