/* Copyright 2015-2016 Samsung Electronics Co., Ltd. * Copyright 2015-2016 University of Szeged. * * 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. */ #ifndef VM_STACK_H #define VM_STACK_H #include "config.h" #include "ecma-globals.h" /** \addtogroup vm Virtual machine * @{ * * \addtogroup stack VM stack * @{ */ /** * Number of ecma values inlined into stack frame */ #define VM_STACK_FRAME_INLINED_VALUES_NUMBER CONFIG_VM_STACK_FRAME_INLINED_VALUES_NUMBER /** * Header of a ECMA stack frame's chunk */ typedef struct { uint16_t prev_chunk_p; /**< previous chunk of same frame */ } vm_stack_chunk_header_t; /** * ECMA stack frame */ typedef struct vm_stack_frame_t { struct vm_stack_frame_t *prev_frame_p; /**< previous frame */ uint32_t regs_number; /**< number of register variables */ } vm_stack_frame_t; #define VM_CREATE_CONTEXT(type, end_offset) ((ecma_value_t) ((type) | (end_offset) << 4)) #define VM_GET_CONTEXT_TYPE(value) ((vm_stack_context_type_t) ((value) & 0xf)) #define VM_GET_CONTEXT_END(value) ((value) >> 4) /** * Context types for the vm stack. */ typedef enum { VM_CONTEXT_FINALLY_JUMP, /**< finally context with a jump */ VM_CONTEXT_FINALLY_THROW, /**< finally context with a throw */ VM_CONTEXT_FINALLY_RETURN, /**< finally context with a return */ VM_CONTEXT_TRY, /**< try context */ VM_CONTEXT_CATCH, /**< catch context */ VM_CONTEXT_WITH, /**< with context */ VM_CONTEXT_FOR_IN, /**< for-in context */ } vm_stack_context_type_t; extern ecma_value_t *vm_stack_context_abort (vm_frame_ctx_t *, ecma_value_t *); extern bool vm_stack_find_finally (vm_frame_ctx_t *, ecma_value_t **, vm_stack_context_type_t, uint32_t); /** * @} * @} */ #endif /* !VM_STACK_H */