зеркало из https://github.com/mozilla/gecko-dev.git
98 строки
2.3 KiB
C++
98 строки
2.3 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "txExpr.h"
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nsresult
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txLiteralExpr::evaluate(txIEvalContext* aContext, txAExprResult** aResult)
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{
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NS_ENSURE_TRUE(mValue, NS_ERROR_OUT_OF_MEMORY);
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*aResult = mValue;
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NS_ADDREF(*aResult);
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return NS_OK;
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}
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static Expr::ResultType resultTypes[] =
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{
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Expr::NODESET_RESULT, // NODESET
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Expr::BOOLEAN_RESULT, // BOOLEAN
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Expr::NUMBER_RESULT, // NUMBER
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Expr::STRING_RESULT, // STRING
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Expr::RTF_RESULT // RESULT_TREE_FRAGMENT
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};
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Expr::ResultType
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txLiteralExpr::getReturnType()
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{
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return resultTypes[mValue->getResultType()];
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}
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Expr*
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txLiteralExpr::getSubExprAt(uint32_t aPos)
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{
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return nullptr;
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}
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void
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txLiteralExpr::setSubExprAt(uint32_t aPos, Expr* aExpr)
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{
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NS_NOTREACHED("setting bad subexpression index");
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}
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bool
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txLiteralExpr::isSensitiveTo(ContextSensitivity aContext)
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{
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return false;
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}
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#ifdef TX_TO_STRING
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void
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txLiteralExpr::toString(nsAString& aStr)
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{
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switch (mValue->getResultType()) {
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case txAExprResult::NODESET:
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{
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aStr.AppendLiteral(" { Nodeset literal } ");
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return;
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}
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case txAExprResult::BOOLEAN:
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{
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if (mValue->booleanValue()) {
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aStr.AppendLiteral("true()");
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}
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else {
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aStr.AppendLiteral("false()");
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}
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return;
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}
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case txAExprResult::NUMBER:
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{
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txDouble::toString(mValue->numberValue(), aStr);
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return;
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}
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case txAExprResult::STRING:
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{
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StringResult* strRes =
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static_cast<StringResult*>(static_cast<txAExprResult*>
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(mValue));
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char16_t ch = '\'';
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if (strRes->mValue.FindChar(ch) != kNotFound) {
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ch = '\"';
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}
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aStr.Append(ch);
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aStr.Append(strRes->mValue);
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aStr.Append(ch);
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return;
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}
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case txAExprResult::RESULT_TREE_FRAGMENT:
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{
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aStr.AppendLiteral(" { RTF literal } ");
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return;
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}
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}
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}
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#endif
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