1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/dom/xslt/xpath/txExprResult.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,131 @@
1.4 +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#ifndef TRANSFRMX_EXPRRESULT_H
1.10 +#define TRANSFRMX_EXPRRESULT_H
1.11 +
1.12 +#include "nsString.h"
1.13 +#include "nsAutoPtr.h"
1.14 +#include "txCore.h"
1.15 +#include "txResultRecycler.h"
1.16 +
1.17 +/*
1.18 + * ExprResult
1.19 + *
1.20 + * Classes Represented:
1.21 + * BooleanResult, ExprResult, NumberResult, StringResult
1.22 + *
1.23 + * Note: for NodeSet, see NodeSet.h
1.24 +*/
1.25 +
1.26 +class txAExprResult
1.27 +{
1.28 +public:
1.29 + friend class txResultRecycler;
1.30 +
1.31 + // Update txLiteralExpr::getReturnType and sTypes in txEXSLTFunctions.cpp if
1.32 + // this enum is changed.
1.33 + enum ResultType {
1.34 + NODESET = 0,
1.35 + BOOLEAN,
1.36 + NUMBER,
1.37 + STRING,
1.38 + RESULT_TREE_FRAGMENT
1.39 + };
1.40 +
1.41 + txAExprResult(txResultRecycler* aRecycler) : mRecycler(aRecycler)
1.42 + {
1.43 + }
1.44 + virtual ~txAExprResult()
1.45 + {
1.46 + }
1.47 +
1.48 + void AddRef()
1.49 + {
1.50 + ++mRefCnt;
1.51 + NS_LOG_ADDREF(this, mRefCnt, "txAExprResult", sizeof(*this));
1.52 + }
1.53 +
1.54 + void Release(); // Implemented in txResultRecycler.cpp
1.55 +
1.56 + /**
1.57 + * Returns the type of ExprResult represented
1.58 + * @return the type of ExprResult represented
1.59 + **/
1.60 + virtual short getResultType() = 0;
1.61 +
1.62 + /**
1.63 + * Creates a String representation of this ExprResult
1.64 + * @param aResult the destination string to append the String
1.65 + * representation to.
1.66 + **/
1.67 + virtual void stringValue(nsString& aResult) = 0;
1.68 +
1.69 + /**
1.70 + * Returns a pointer to the stringvalue if possible. Otherwise null is
1.71 + * returned.
1.72 + */
1.73 + virtual const nsString* stringValuePointer() = 0;
1.74 +
1.75 + /**
1.76 + * Converts this ExprResult to a Boolean (bool) value
1.77 + * @return the Boolean value
1.78 + **/
1.79 + virtual bool booleanValue() = 0;
1.80 +
1.81 + /**
1.82 + * Converts this ExprResult to a Number (double) value
1.83 + * @return the Number value
1.84 + **/
1.85 + virtual double numberValue() = 0;
1.86 +
1.87 +private:
1.88 + nsAutoRefCnt mRefCnt;
1.89 + nsRefPtr<txResultRecycler> mRecycler;
1.90 +};
1.91 +
1.92 +#define TX_DECL_EXPRRESULT \
1.93 + virtual short getResultType(); \
1.94 + virtual void stringValue(nsString& aString); \
1.95 + virtual const nsString* stringValuePointer(); \
1.96 + virtual bool booleanValue(); \
1.97 + virtual double numberValue(); \
1.98 +
1.99 +
1.100 +class BooleanResult : public txAExprResult {
1.101 +
1.102 +public:
1.103 + BooleanResult(bool aValue);
1.104 +
1.105 + TX_DECL_EXPRRESULT
1.106 +
1.107 +private:
1.108 + bool value;
1.109 +};
1.110 +
1.111 +class NumberResult : public txAExprResult {
1.112 +
1.113 +public:
1.114 + NumberResult(double aValue, txResultRecycler* aRecycler);
1.115 +
1.116 + TX_DECL_EXPRRESULT
1.117 +
1.118 + double value;
1.119 +
1.120 +};
1.121 +
1.122 +
1.123 +class StringResult : public txAExprResult {
1.124 +public:
1.125 + StringResult(txResultRecycler* aRecycler);
1.126 + StringResult(const nsAString& aValue, txResultRecycler* aRecycler);
1.127 +
1.128 + TX_DECL_EXPRRESULT
1.129 +
1.130 + nsString mValue;
1.131 +};
1.132 +
1.133 +#endif
1.134 +
