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79 lines
2.4 KiB
C
79 lines
2.4 KiB
C
/* Copyright 2015-2016 Samsung Electronics Co., Ltd.
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* Copyright 2015-2016 University of Szeged.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef VM_STACK_H
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#define VM_STACK_H
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#include "config.h"
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#include "ecma-globals.h"
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/** \addtogroup vm Virtual machine
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* @{
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*
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* \addtogroup stack VM stack
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* @{
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*/
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/**
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* Number of ecma values inlined into stack frame
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*/
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#define VM_STACK_FRAME_INLINED_VALUES_NUMBER CONFIG_VM_STACK_FRAME_INLINED_VALUES_NUMBER
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/**
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* Header of a ECMA stack frame's chunk
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*/
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typedef struct
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{
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uint16_t prev_chunk_p; /**< previous chunk of same frame */
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} vm_stack_chunk_header_t;
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/**
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* ECMA stack frame
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*/
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typedef struct vm_stack_frame_t
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{
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struct vm_stack_frame_t *prev_frame_p; /**< previous frame */
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uint32_t regs_number; /**< number of register variables */
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} vm_stack_frame_t;
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#define VM_CREATE_CONTEXT(type, end_offset) ((ecma_value_t) ((type) | (end_offset) << 4))
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#define VM_GET_CONTEXT_TYPE(value) ((vm_stack_context_type_t) ((value) & 0xf))
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#define VM_GET_CONTEXT_END(value) ((value) >> 4)
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/**
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* Context types for the vm stack.
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*/
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typedef enum
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{
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VM_CONTEXT_FINALLY_JUMP, /**< finally context with a jump */
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VM_CONTEXT_FINALLY_THROW, /**< finally context with a throw */
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VM_CONTEXT_FINALLY_RETURN, /**< finally context with a return */
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VM_CONTEXT_TRY, /**< try context */
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VM_CONTEXT_CATCH, /**< catch context */
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VM_CONTEXT_WITH, /**< with context */
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VM_CONTEXT_FOR_IN, /**< for-in context */
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} vm_stack_context_type_t;
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extern ecma_value_t *vm_stack_context_abort (vm_frame_ctx_t *, ecma_value_t *);
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extern bool vm_stack_find_finally (vm_frame_ctx_t *, ecma_value_t **,
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vm_stack_context_type_t, uint32_t);
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/**
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* @}
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* @}
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*/
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#endif /* !VM_STACK_H */
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