dom/xslt/xpath/txUnaryExpr.cpp@b8a032363ba2 (annotated)
dom/xslt/xpath/txUnaryExpr.cpp
Thu, 22 Jan 2015 13:21:57 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 22 Jan 2015 13:21:57 +0100
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
- permissions
- -rw-r--r--
Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ |
| michael@0 | 2 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 4 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 5 | |
| michael@0 | 6 | #include "txExpr.h" |
| michael@0 | 7 | #include "txIXPathContext.h" |
| michael@0 | 8 | |
| michael@0 | 9 | /* |
| michael@0 | 10 | * Evaluates this Expr based on the given context node and processor state |
| michael@0 | 11 | * @param context the context node for evaluation of this Expr |
| michael@0 | 12 | * @param ps the ContextState containing the stack information needed |
| michael@0 | 13 | * for evaluation. |
| michael@0 | 14 | * @return the result of the evaluation. |
| michael@0 | 15 | */ |
| michael@0 | 16 | nsresult |
| michael@0 | 17 | UnaryExpr::evaluate(txIEvalContext* aContext, txAExprResult** aResult) |
| michael@0 | 18 | { |
| michael@0 | 19 | *aResult = nullptr; |
| michael@0 | 20 | |
| michael@0 | 21 | nsRefPtr<txAExprResult> exprRes; |
| michael@0 | 22 | nsresult rv = expr->evaluate(aContext, getter_AddRefs(exprRes)); |
| michael@0 | 23 | NS_ENSURE_SUCCESS(rv, rv); |
| michael@0 | 24 | |
| michael@0 | 25 | double value = exprRes->numberValue(); |
| michael@0 | 26 | #ifdef HPUX |
| michael@0 | 27 | /* |
| michael@0 | 28 | * Negation of a zero doesn't produce a negative |
| michael@0 | 29 | * zero on HPUX. Perform the operation by multiplying with |
| michael@0 | 30 | * -1. |
| michael@0 | 31 | */ |
| michael@0 | 32 | return aContext->recycler()->getNumberResult(-1 * value, aResult); |
| michael@0 | 33 | #else |
| michael@0 | 34 | return aContext->recycler()->getNumberResult(-value, aResult); |
| michael@0 | 35 | #endif |
| michael@0 | 36 | } |
| michael@0 | 37 | |
| michael@0 | 38 | TX_IMPL_EXPR_STUBS_1(UnaryExpr, NODESET_RESULT, expr) |
| michael@0 | 39 | |
| michael@0 | 40 | bool |
| michael@0 | 41 | UnaryExpr::isSensitiveTo(ContextSensitivity aContext) |
| michael@0 | 42 | { |
| michael@0 | 43 | return expr->isSensitiveTo(aContext); |
| michael@0 | 44 | } |
| michael@0 | 45 | |
| michael@0 | 46 | #ifdef TX_TO_STRING |
| michael@0 | 47 | void |
| michael@0 | 48 | UnaryExpr::toString(nsAString& str) |
| michael@0 | 49 | { |
| michael@0 | 50 | if (!expr) |
| michael@0 | 51 | return; |
| michael@0 | 52 | str.Append(char16_t('-')); |
| michael@0 | 53 | expr->toString(str); |
| michael@0 | 54 | } |
| michael@0 | 55 | #endif |
