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https://github.com/jerryscript-project/jerryscript.git
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f88489beef
Missing features: - caching next() method (this also true for normal generators) - automatic sync to async generator conversion JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
95 lines
3.3 KiB
C
95 lines
3.3 KiB
C
/* Copyright JS Foundation and other contributors, http://js.foundation
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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_DEFINES_H
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#define VM_DEFINES_H
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#include "byte-code.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 vm_executor Executor
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* @{
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*/
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/**
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* Helper for += on uint16_t values.
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*/
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#define VM_PLUS_EQUAL_U16(base, value) (base) = (uint16_t) ((base) + (value))
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/**
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* Helper for -= on uint16_t values.
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*/
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#define VM_MINUS_EQUAL_U16(base, value) (base) = (uint16_t) ((base) - (value))
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/**
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* Context of interpreter, related to a JS stack frame
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*/
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typedef struct vm_frame_ctx_t
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{
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const ecma_compiled_code_t *bytecode_header_p; /**< currently executed byte-code data */
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const uint8_t *byte_code_p; /**< current byte code pointer */
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const uint8_t *byte_code_start_p; /**< byte code start pointer */
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ecma_value_t *stack_top_p; /**< stack top pointer */
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ecma_value_t *literal_start_p; /**< literal list start pointer */
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ecma_object_t *lex_env_p; /**< current lexical environment */
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struct vm_frame_ctx_t *prev_context_p; /**< previous context */
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ecma_value_t this_binding; /**< this binding */
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ecma_value_t block_result; /**< block result */
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#if ENABLED (JERRY_RESOURCE_NAME)
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ecma_value_t resource_name; /**< current resource name (usually a file name) */
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#endif /* ENABLED (JERRY_RESOURCE_NAME) */
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#if ENABLED (JERRY_LINE_INFO)
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uint32_t current_line; /**< currently executed line */
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#endif /* ENABLED (JERRY_LINE_INFO) */
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uint16_t context_depth; /**< current context depth */
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uint8_t is_eval_code; /**< eval mode flag */
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uint8_t call_operation; /**< perform a call or construct operation */
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/* Registers start immediately after the frame context. */
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} vm_frame_ctx_t;
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/**
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* Get register list corresponding to the frame context.
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*/
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#define VM_GET_REGISTERS(frame_ctx_p) ((ecma_value_t *) ((frame_ctx_p) + 1))
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/**
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* Read or write a specific register.
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*/
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#define VM_GET_REGISTER(frame_ctx_p, i) (((ecma_value_t *) ((frame_ctx_p) + 1))[i])
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/**
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* Get the executable object.
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*/
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#define VM_GET_EXECUTABLE_OBJECT(frame_ctx_p) \
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((ecma_extended_object_t *) ((uintptr_t) (frame_ctx_p) - (uintptr_t) offsetof (vm_executable_object_t, frame_ctx)))
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/**
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* Generator frame context.
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*/
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typedef struct
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{
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ecma_extended_object_t extended_object; /**< extended object part */
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vm_frame_ctx_t frame_ctx; /**< frame context part */
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} vm_executable_object_t;
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/**
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* @}
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* @}
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*/
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#endif /* !VM_DEFINES_H */
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