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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#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(uint32_t aPos)
{
return nullptr;
}
void
txLiteralExpr::setSubExprAt(uint32_t 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:
{
txDouble::toString(mValue->numberValue(), aStr);
return;
}
case txAExprResult::STRING:
{
StringResult* strRes =
static_cast<StringResult*>(static_cast<txAExprResult*>
(mValue));
char16_t ch = '\'';
if (strRes->mValue.Contains(ch)) {
ch = '\"';
}
aStr.Append(ch);
aStr.Append(strRes->mValue);
aStr.Append(ch);
return;
}
case txAExprResult::RESULT_TREE_FRAGMENT:
{
aStr.AppendLiteral(" { RTF literal } ");
return;
}
}
}
#endif
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