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comparison: dom/xslt/xpath/txUnaryExpr.cpp
dom/xslt/xpath/txUnaryExpr.cpp
- changeset 0
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| 1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #include "txExpr.h" | |
| 7 #include "txIXPathContext.h" | |
| 8 | |
| 9 /* | |
| 10 * Evaluates this Expr based on the given context node and processor state | |
| 11 * @param context the context node for evaluation of this Expr | |
| 12 * @param ps the ContextState containing the stack information needed | |
| 13 * for evaluation. | |
| 14 * @return the result of the evaluation. | |
| 15 */ | |
| 16 nsresult | |
| 17 UnaryExpr::evaluate(txIEvalContext* aContext, txAExprResult** aResult) | |
| 18 { | |
| 19 *aResult = nullptr; | |
| 20 | |
| 21 nsRefPtr<txAExprResult> exprRes; | |
| 22 nsresult rv = expr->evaluate(aContext, getter_AddRefs(exprRes)); | |
| 23 NS_ENSURE_SUCCESS(rv, rv); | |
| 24 | |
| 25 double value = exprRes->numberValue(); | |
| 26 #ifdef HPUX | |
| 27 /* | |
| 28 * Negation of a zero doesn't produce a negative | |
| 29 * zero on HPUX. Perform the operation by multiplying with | |
| 30 * -1. | |
| 31 */ | |
| 32 return aContext->recycler()->getNumberResult(-1 * value, aResult); | |
| 33 #else | |
| 34 return aContext->recycler()->getNumberResult(-value, aResult); | |
| 35 #endif | |
| 36 } | |
| 37 | |
| 38 TX_IMPL_EXPR_STUBS_1(UnaryExpr, NODESET_RESULT, expr) | |
| 39 | |
| 40 bool | |
| 41 UnaryExpr::isSensitiveTo(ContextSensitivity aContext) | |
| 42 { | |
| 43 return expr->isSensitiveTo(aContext); | |
| 44 } | |
| 45 | |
| 46 #ifdef TX_TO_STRING | |
| 47 void | |
| 48 UnaryExpr::toString(nsAString& str) | |
| 49 { | |
| 50 if (!expr) | |
| 51 return; | |
| 52 str.Append(char16_t('-')); | |
| 53 expr->toString(str); | |
| 54 } | |
| 55 #endif |
