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// Copyright (c) 2008 Roberto Raggi <roberto.raggi@gmail.com>

//

// Permission is hereby granted, free of charge, to any person obtaining a copy

// of this software and associated documentation files (the "Software"), to deal

// in the Software without restriction, including without limitation the rights

// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

// copies of the Software, and to permit persons to whom the Software is

// furnished to do so, subject to the following conditions:

//

// The above copyright notice and this permission notice shall be included in

// all copies or substantial portions of the Software.

//

// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

// THE SOFTWARE.

#include "Semantic.h"

#include "TranslationUnit.h"

#include "Control.h"

#include "Scope.h"

#include "Symbols.h"

#include "Token.h"

#include "CheckSpecifier.h"

#include "CheckDeclaration.h"

#include "CheckDeclarator.h"

#include "CheckStatement.h"

#include "CheckExpression.h"

#include "CheckName.h"

using namespace CPlusPlus;

class Semantic::Data

{

public:

    Data(Semantic *semantic, TranslationUnit *translationUnit)

        : semantic(semantic),

          translationUnit(translationUnit),

          control(translationUnit->control()),

          skipFunctionBodies(false),

          visibility(Symbol::Public),

          ojbcVisibility(Symbol::Protected),

          methodKey(Function::NormalMethod),

          checkSpecifier(0),

          checkDeclaration(0),

          checkDeclarator(0),

          checkExpression(0),

          checkStatement(0),

          checkName(0)

    { }

    ~Data()

    {

        delete checkSpecifier;

        delete checkDeclaration;

        delete checkDeclarator;

        delete checkExpression;

        delete checkStatement;

        delete checkName;

    }

    Semantic *semantic;

    TranslationUnit *translationUnit;

    Control *control;

    bool skipFunctionBodies;

    int visibility;

    int ojbcVisibility;

    int methodKey;

    CheckSpecifier *checkSpecifier;

    CheckDeclaration *checkDeclaration;

    CheckDeclarator *checkDeclarator;

    CheckExpression *checkExpression;

    CheckStatement *checkStatement;

    CheckName *checkName;

};

Semantic::Semantic(TranslationUnit *translationUnit)

{

    d = new Data(this, translationUnit);

    d->checkSpecifier = new CheckSpecifier(this);

    d->checkDeclaration = new CheckDeclaration(this);

    d->checkDeclarator = new CheckDeclarator(this);

    d->checkExpression = new CheckExpression(this);

    d->checkStatement = new CheckStatement(this);

    d->checkName = new CheckName(this);

}

Semantic::~Semantic()

{ delete d; }

TranslationUnit *Semantic::translationUnit() const

{ return d->translationUnit; }

Control *Semantic::control() const

{ return d->control; }

FullySpecifiedType Semantic::check(SpecifierListAST *specifier, Scope *scope)

{ return d->checkSpecifier->check(specifier, scope); }

void Semantic::check(DeclarationAST *declaration, Scope *scope, TemplateParameters *templateParameters)

{ d->checkDeclaration->check(declaration, scope, templateParameters); }

FullySpecifiedType Semantic::check(DeclaratorAST *declarator, const FullySpecifiedType &type,

                                   Scope *scope, const Name **name)

{ return d->checkDeclarator->check(declarator, type, scope, name); }

FullySpecifiedType Semantic::check(PtrOperatorListAST *ptrOperators, const FullySpecifiedType &type,

                                   Scope *scope)

{ return d->checkDeclarator->check(ptrOperators, type, scope); }

FullySpecifiedType Semantic::check(ObjCMethodPrototypeAST *methodPrototype, Scope *scope)

{ return d->checkDeclarator->check(methodPrototype, scope); }

FullySpecifiedType Semantic::check(ObjCTypeNameAST *typeName, Scope *scope)

{ return d->checkSpecifier->check(typeName, scope); }

void Semantic::check(ObjCMessageArgumentDeclarationAST *arg, Scope *scope)

{ return d->checkName->check(arg, scope); }

FullySpecifiedType Semantic::check(ExpressionAST *expression, Scope *scope)

{ return d->checkExpression->check(expression, scope); }

void Semantic::check(StatementAST *statement, Scope *scope)

{ d->checkStatement->check(statement, scope); }

const Name *Semantic::check(NameAST *name, Scope *scope)

{ return d->checkName->check(name, scope); }

const Name *Semantic::check(NestedNameSpecifierListAST *name, Scope *scope)

{ return d->checkName->check(name, scope); }

const Name *Semantic::check(ObjCSelectorAST *args, Scope *scope)

{ return d->checkName->check(args, scope); }

bool Semantic::skipFunctionBodies() const

{ return d->skipFunctionBodies; }

void Semantic::setSkipFunctionBodies(bool skipFunctionBodies)

{ d->skipFunctionBodies = skipFunctionBodies; }

int Semantic::currentVisibility() const

{ return d->visibility; }

int Semantic::switchVisibility(int visibility)

{

    int previousVisibility = d->visibility;

    d->visibility = visibility;

    return previousVisibility;

}

int Semantic::currentObjCVisibility() const

{ return d->ojbcVisibility; }

int Semantic::switchObjCVisibility(int visibility)

{

    int previousOjbCVisibility = d->ojbcVisibility;

    d->ojbcVisibility = visibility;

    return previousOjbCVisibility;

}

int Semantic::currentMethodKey() const

{ return d->methodKey; }

int Semantic::switchMethodKey(int methodKey)

{

    int previousMethodKey = d->methodKey;

    d->methodKey = methodKey;

    return previousMethodKey;

}

int Semantic::visibilityForAccessSpecifier(int tokenKind) const

{

    switch (tokenKind) {

    case T_PUBLIC:

        return Symbol::Public;

    case T_PROTECTED:

        return Symbol::Protected;

    case T_PRIVATE:

        return Symbol::Private;

    case T_Q_SIGNALS:

        return Symbol::Protected;

    default:

        return Symbol::Public;

    }

}

int Semantic::visibilityForObjCAccessSpecifier(int tokenKind) const

{

    switch (tokenKind) {

    case T_AT_PUBLIC:

        return Symbol::Public;

    case T_AT_PROTECTED:

        return Symbol::Protected;

    case T_AT_PRIVATE:

        return Symbol::Private;

    case T_AT_PACKAGE:

        return Symbol::Package;

    default:

        return Symbol::Protected;

    }

}

bool Semantic::isObjCClassMethod(int tokenKind) const

{

    switch (tokenKind) {

    case T_PLUS:

        return true;

    case T_MINUS:

    default:

        return false;

    }

}

int Semantic::visibilityForClassKey(int tokenKind) const

{

    switch (tokenKind) {

    case T_CLASS:

        return Symbol::Private;

    case T_STRUCT:

    case T_UNION:

        return Symbol::Public;

    default:

        return Symbol::Public;

    }

}