/*
 * Copyright (C) 2007-2014 Xagasoft, All rights reserved.
 *
 * This file is part of the Xagasoft Build and is released under the
 * terms of the license contained in the file LICENSE.
 */

#ifndef AST_NODE_H
#define AST_NODE_H

#include "bu/formatter.h"
#include "location.h"

class AstNode
{
public:
    enum Type
    {
        // Branching types
        typeFunction        = 0x100001,
        typeSet             = 0x100002,
        typeUnset           = 0x100003,
        typeIf              = 0x100004,
        typeInclude         = 0x100005,
        typeTarget          = 0x100006,
        typeRule            = 0x100007,
        typeConfig          = 0x100008,
        typeList            = 0x100009,
        typeInlineFunc      = 0x10000A,
        typeRequires        = 0x10000B,
        typeFor             = 0x10000C,
        typeFunctionDef     = 0x10000D,
        typeReturn          = 0x10000E,
        typeProfile         = 0x10000F,
        typeInput           = 0x100010,
        typeRuleDef         = 0x100011,
        typeOutput          = 0x100012,
        typeAutoConfig      = 0x100013,
        typeGlobalConfig    = 0x100014,
        typeType            = 0x100015,
        typeValue           = 0x100016,
        typeAllow           = 0x100017,
        typeDefault         = 0x100018,
        typeExport          = 0x100019,
        typeExpr            = 0x10001A, /***< Stack based compound expression.*/
        typeActionDef       = 0x10001B,
        typeProcessTarget   = 0x10001C,
        typeTag             = 0x10001D,

        // Leaf types
        typeVariable        = 0x210001,
        typeString          = 0x210002,
        typeInt             = 0x220003,
        typeFloat           = 0x230004,
        typeBool            = 0x240005,
        typeVersion         = 0x250006,
        typeOpEq            = 0x200007,
        typeOpPlusEq        = 0x200008,
        typeOpPlusEqRaw     = 0x200009,
        typeError           = 0x21000A,
        typeWarning         = 0x21000B,
        typeNotice          = 0x21000C,
        typeTypeString      = 0x20000D,
        typeTypeInt         = 0x20000E,
        typeTypeFloat       = 0x20000F,
        typeTypeBool        = 0x200010,
        typeTypeVersion     = 0x200011,
        typeCmpEq           = 0x200012,
        typeCmpLt           = 0x200013,
        typeCmpGt           = 0x200014,
        typeCmpNe           = 0x200015,
        typeCmpLtEq         = 0x200016,
        typeCmpGtEq         = 0x200017,
        typeCondition       = 0x210018,
        typeDisplay         = 0x210019,
        typeCache           = 0x24001A,
        typePushPrefix      = 0x21001B,
        typePopPrefix       = 0x20001C,
        typeNull            = 0x20001D,
        typeVariableRef     = 0x21001E,
        typeOpPlus          = 0x20001F,
        typeOpMinus         = 0x200020,
        typeOpMultiply      = 0x200021,
        typeOpDivide        = 0x200022,
        typeOpNegate        = 0x200023,
        typeOpNot           = 0x200024,

        typeBranch          = 0x100000,
        typeLeaf            = 0x200000,
        typeClassMask       = 0x300000,

        typeDataNone        = 0x000000,
        typeDataString      = 0x010000,
        typeDataInt         = 0x020000,
        typeDataFloat       = 0x030000,
        typeDataBool        = 0x040000,
        typeDataVersion     = 0x050000,

        typeDataMask        = 0x0F0000
    };
public:
    AstNode( const Location &loc, Type eType );
    virtual ~AstNode();

    Type getType() const { return eType; }
    Type getClass() const { return (Type)(eType&typeClassMask); }
    Type getDataType() const { return (Type)(eType&typeDataMask); }

private:
    Type eType;
    Location loc;
};

Bu::Formatter &operator<<( Bu::Formatter &f, const AstNode &n );
Bu::Formatter &operator<<( Bu::Formatter &f, const AstNode::Type &t );

#endif