OoasTools

/**

  *

  *                  OOAS Compiler - C++ AST

  *

  * Copyright 2015, AIT Austrian Institute of Technology.

  * All rights reserved.

  *

  * SEE THE "LICENSE" FILE FOR THE TERMS UNDER WHICH THIS FILE IS PROVIDED.

  *

  * If you modify the file please update the list of contributors below to in-

  * clude your name. Please also stick to the coding convention of using TABs

  * to do the basic (block-level) indentation and spaces for anything after

  * that. (Enable the display of special chars and it should be pretty obvious

  * what this means.) Also, remove all trailing whitespace.

  *

  * Contributors:

  *               Willibald Krenn (AIT)

  *               Stephan Zimmerer (AIT)

  *               Christoph Czurda (AIT)

  *

  */

#pragma once

#include <ast/statements/Statement.hpp>

#include <ast/SymbolTable.hpp>

#include <deque>

namespace Ast {

class Block:

        public Statement,

        public IScope

{

protected:

        SymbolTable* m_symbols;

        StatementList m_statements;

        Expression* m_filter;

        IScope* m_parentScope;

        Block(StatementKind kind):

                Statement(kind),

                m_symbols (nullptr),

                m_statements (),

                m_filter (nullptr),

                m_parentScope (nullptr)

        {}

        Block(const Block& toCopy):

                Statement(toCopy),

                m_symbols (toCopy.m_symbols),

                m_statements (toCopy.m_statements),

                m_filter (toCopy.m_filter),

                m_parentScope (toCopy.m_parentScope)

        {}

public:

        void init(std::int32_t line, std::int32_t col, SymbolTable* symTabRef,

                                StatementList* stmtListRef, IScope* scopeRef)

        {

                init(line,col,symTabRef,stmtListRef,scopeRef,nullptr);

        }

        void init(std::int32_t line, std::int32_t col, SymbolTable* symTabRef,

                                StatementList* stmtListRef, IScope* scopeRef, Expression* filter)

        {

                Statement::init(line,col);

                m_symbols = symTabRef;

                m_statements = std::move(*stmtListRef);

                m_parentScope = scopeRef;

                m_filter = filter;

        }

        SymbolTable* symbols() const {return m_symbols;};

        Expression* filter() const {return m_filter;};

        StatementList& statements() {return m_statements;};

        void addStatement(Statement* toAdd){

                IScope* childScope = toAdd->asScope();

                if (childScope != nullptr)

                        childScope->setParentScope((IScope*)this);

                m_statements.push_back(toAdd);

        };

        void setFilter(Expression* sexpr) {m_filter = sexpr;};

        bool isSimpleBlock() {return m_symbols->size() == 0 && m_filter == nullptr;};

        Identifier* resolveIdentifier(const std::string& aName) const override { return m_symbols->get(aName); };

        IScope* getParentScope() const {return m_parentScope;};

        std::string getScopeName() const override {return "";}

        void setParentScope(IScope* parentScope) {m_parentScope = parentScope;};

        void addIdentifier(Identifier* anIdentifier, void* /*tag*/) {m_symbols->addIdentifier(anIdentifier);};

        IScope* asScope() final {return (IScope*)this;}

};

}