/* -*- 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 TRANSFRMX_VARIABLEMAP_H
#define TRANSFRMX_VARIABLEMAP_H
#include "nsError.h"
#include "txXMLUtils.h"
#include "txExprResult.h"
#include "txExpandedNameMap.h"
/**
* Map that maps from expanded name to an expression result value. This is just
* a base class, use txVariableMap or txParameterMap instead.
*/
class txVariableMapBase {
public:
nsresult bindVariable(
const txExpandedName& aName, txAExprResult* aValue);
void getVariable(
const txExpandedName& aName, txAExprResult** aResult);
void removeVariable(
const txExpandedName& aName);
protected:
txVariableMapBase() =
default;
~txVariableMapBase();
txExpandedNameMap<txAExprResult> mMap;
};
/**
* Map for mapping from expanded name to variable values. This is not
* refcounted, so owners need to be careful to clean this up.
*/
class txVariableMap :
public txVariableMapBase {
public:
txVariableMap() { MOZ_COUNT_CTOR(txVariableMap); }
MOZ_COUNTED_DTOR(txVariableMap)
};
/**
* Map for mapping from expanded name to parameter values. This is refcounted,
* so multiple owners can hold a reference.
*/
class txParameterMap :
public txVariableMapBase {
public:
NS_INLINE_DECL_REFCOUNTING(txParameterMap)
private:
~txParameterMap() =
default;
};
inline txVariableMapBase::~txVariableMapBase() {
txExpandedNameMap<txAExprResult>::iterator iter(mMap);
while (iter.next()) {
txAExprResult* res = iter.value();
NS_RELEASE(res);
}
}
inline nsresult txVariableMapBase::bindVariable(
const txExpandedName& aName,
txAExprResult* aValue) {
NS_ASSERTION(aValue,
"can't add null-variables to a txVariableMap");
nsresult rv = mMap.add(aName, aValue);
if (NS_SUCCEEDED(rv)) {
NS_ADDREF(aValue);
}
else if (rv == NS_ERROR_XSLT_ALREADY_SET) {
rv = NS_ERROR_XSLT_VAR_ALREADY_SET;
}
return rv;
}
inline void txVariableMapBase::getVariable(
const txExpandedName& aName,
txAExprResult** aResult) {
*aResult = mMap.get(aName);
if (*aResult) {
NS_ADDREF(*aResult);
}
}
inline void txVariableMapBase::removeVariable(
const txExpandedName& aName) {
txAExprResult* var = mMap.remove(aName);
NS_IF_RELEASE(var);
}
#endif // TRANSFRMX_VARIABLEMAP_H
