content/xslt/src/xpath/txLiteralExpr.cpp
author David Anderson <danderson@mozilla.com>
Mon, 17 Oct 2011 11:52:12 -0700
changeset 79326 f93960a93ad97a56d308bd9ce25d97cbc175d524
parent 78608 8cfeba5239a9e4f20c462d6fb20421b4e4e7c735
parent 79324 ec7577dec4fceef0ac2717416d9c48289402d935
child 81241 7ceaa303896bae686f83081212fec143d3dfd21d
permissions -rw-r--r--
Merge from mozilla-central.

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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 *
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 * 1.1 (the "License"); you may not use this file except in compliance with
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 *
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 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is TransforMiiX XSLT processor code.
 *
 * The Initial Developer of the Original Code is
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 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   IBM Corporation
 *
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#include "txExpr.h"

nsresult
txLiteralExpr::evaluate(txIEvalContext* aContext, txAExprResult** aResult)
{
    NS_ENSURE_TRUE(mValue, NS_ERROR_OUT_OF_MEMORY);

    *aResult = mValue;
    NS_ADDREF(*aResult);

    return NS_OK;
}

static Expr::ResultType resultTypes[] =
{
    Expr::NODESET_RESULT, // NODESET
    Expr::BOOLEAN_RESULT, // BOOLEAN
    Expr::NUMBER_RESULT,  // NUMBER
    Expr::STRING_RESULT,  // STRING
    Expr::RTF_RESULT      // RESULT_TREE_FRAGMENT
};

Expr::ResultType
txLiteralExpr::getReturnType()
{
    return resultTypes[mValue->getResultType()];
}

Expr*
txLiteralExpr::getSubExprAt(PRUint32 aPos)
{
    return nsnull;
}
void
txLiteralExpr::setSubExprAt(PRUint32 aPos, Expr* aExpr)
{
    NS_NOTREACHED("setting bad subexpression index");
}

bool
txLiteralExpr::isSensitiveTo(ContextSensitivity aContext)
{
    return false;
}

#ifdef TX_TO_STRING
void
txLiteralExpr::toString(nsAString& aStr)
{
    switch (mValue->getResultType()) {
        case txAExprResult::NODESET:
        {
            aStr.AppendLiteral(" { Nodeset literal } ");
            return;
        }
        case txAExprResult::BOOLEAN:
        {
            if (mValue->booleanValue()) {
              aStr.AppendLiteral("true()");
            }
            else {
              aStr.AppendLiteral("false()");
            }
            return;
        }
        case txAExprResult::NUMBER:
        {
            Double::toString(mValue->numberValue(), aStr);
            return;
        }
        case txAExprResult::STRING:
        {
            StringResult* strRes =
                static_cast<StringResult*>(static_cast<txAExprResult*>
                                       (mValue));
            PRUnichar ch = '\'';
            if (strRes->mValue.FindChar(ch) != kNotFound) {
                ch = '\"';
            }
            aStr.Append(ch);
            aStr.Append(strRes->mValue);
            aStr.Append(ch);
            return;
        }
        case txAExprResult::RESULT_TREE_FRAGMENT:
        {
            aStr.AppendLiteral(" { RTF literal } ");
            return;
        }
    }
}
#endif