From 2aa4a82499d4becd2284cdb482213d541b8804dd Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 28 Apr 2024 16:29:10 +0200 Subject: Adding upstream version 86.0.1. Signed-off-by: Daniel Baumann --- dom/xslt/xpath/txIXPathContext.h | 132 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 132 insertions(+) create mode 100644 dom/xslt/xpath/txIXPathContext.h (limited to 'dom/xslt/xpath/txIXPathContext.h') diff --git a/dom/xslt/xpath/txIXPathContext.h b/dom/xslt/xpath/txIXPathContext.h new file mode 100644 index 0000000000..8d5b5df4be --- /dev/null +++ b/dom/xslt/xpath/txIXPathContext.h @@ -0,0 +1,132 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* 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/. */ + +#ifndef __TX_I_XPATH_CONTEXT +#define __TX_I_XPATH_CONTEXT + +#include "nscore.h" +#include "nsISupportsImpl.h" +#include "nsStringFwd.h" + +class FunctionCall; +class nsAtom; +class txAExprResult; +class txResultRecycler; +class txXPathNode; + +/* + * txIParseContext + * + * This interface describes the context needed to create + * XPath Expressions and XSLT Patters. + * (not completely though. key() requires the ProcessorState, which is + * not part of this interface.) + */ + +class txIParseContext { + public: + virtual ~txIParseContext() = default; + + /* + * Return a namespaceID for a given prefix. + */ + virtual nsresult resolveNamespacePrefix(nsAtom* aPrefix, int32_t& aID) = 0; + + /* + * Create a FunctionCall, needed for extension function calls and + * XSLT. XPath function calls are resolved by the Parser. + */ + virtual nsresult resolveFunctionCall(nsAtom* aName, int32_t aID, + FunctionCall** aFunction) = 0; + + /** + * Should nametests parsed in this context be case-sensitive + */ + virtual bool caseInsensitiveNameTests() = 0; + + /* + * Callback to be used by the Parser if errors are detected. + */ + virtual void SetErrorOffset(uint32_t aOffset) = 0; + + enum Allowed { KEY_FUNCTION = 1 << 0 }; + virtual bool allowed(Allowed aAllowed) { return true; } +}; + +/* + * txIMatchContext + * + * Interface used for matching XSLT Patters. + * This is the part of txIEvalContext (see below), that is independent + * of the context node when evaluating a XPath expression, too. + * When evaluating a XPath expression, |txIMatchContext|s are used + * to transport the information from Step to Step. + */ +class txIMatchContext { + public: + virtual ~txIMatchContext() = default; + + /* + * Return the ExprResult associated with the variable with the + * given namespace and local name. + */ + virtual nsresult getVariable(int32_t aNamespace, nsAtom* aLName, + txAExprResult*& aResult) = 0; + + /* + * Is whitespace stripping allowed for the given node? + * See http://www.w3.org/TR/xslt#strip + */ + virtual nsresult isStripSpaceAllowed(const txXPathNode& aNode, + bool& aAllowed) = 0; + + /** + * Returns a pointer to the private context + */ + virtual void* getPrivateContext() = 0; + + virtual txResultRecycler* recycler() = 0; + + /* + * Callback to be used by the expression/pattern if errors are detected. + */ + virtual void receiveError(const nsAString& aMsg, nsresult aRes) = 0; +}; + +#define TX_DECL_MATCH_CONTEXT \ + nsresult getVariable(int32_t aNamespace, nsAtom* aLName, \ + txAExprResult*& aResult) override; \ + nsresult isStripSpaceAllowed(const txXPathNode& aNode, bool& aAllowed) \ + override; \ + void* getPrivateContext() override; \ + txResultRecycler* recycler() override; \ + void receiveError(const nsAString& aMsg, nsresult aRes) override + +class txIEvalContext : public txIMatchContext { + public: + /* + * Get the context node. + */ + virtual const txXPathNode& getContextNode() = 0; + + /* + * Get the size of the context node set. + */ + virtual uint32_t size() = 0; + + /* + * Get the position of the context node in the context node set, + * starting with 1. + */ + virtual uint32_t position() = 0; +}; + +#define TX_DECL_EVAL_CONTEXT \ + TX_DECL_MATCH_CONTEXT; \ + const txXPathNode& getContextNode() override; \ + uint32_t size() override; \ + uint32_t position() override + +#endif // __TX_I_XPATH_CONTEXT -- cgit v1.2.3