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/*
* Copyright (c) 2017 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
*/
#include <config.h>
#include <stdio.h>
#include <parc/assert/parc_Assert.h>
#include <parc/algol/parc_Memory.h>
#include <parc/algol/parc_Deque.h>
#include <parc/algol/parc_Stack.h>
struct parc_stack {
void *instance;
PARCStackInterface *interface;
};
PARCStack *
parcStack(void *instance, PARCStackInterface *interface)
{
PARCStack *result = parcMemory_AllocateAndClear(sizeof(PARCStack));
parcAssertNotNull(result, "parcMemory_AllocateAndClear(%zu) returned NULL", sizeof(PARCStack));
result->instance = instance;
result->interface = interface;
return result;
}
void
parcStack_Release(PARCStack **stackPtr)
{
PARCStack *stack = *stackPtr;
(stack->interface->parcStack_Release)(&stack->instance);
parcMemory_Deallocate((void **) &stack);
*stackPtr = 0;
}
bool
parcStack_IsEmpty(const PARCStack *stack)
{
return (stack->interface->parcStack_IsEmpty)(stack->instance);
}
void *
parcStack_Peek(const PARCStack *stack)
{
return (stack->interface->parcStack_Peek)(stack->instance);
}
void *
parcStack_Pop(PARCStack *stack)
{
return (stack->interface->parcStack_Pop)(stack->instance);
}
void *
parcStack_Push(PARCStack *stack, void *element)
{
return (stack->interface->parcStack_Push)(stack->instance, element);
}
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