Import of the watch repository from Pebble

third_party/jerryscript/jerry-core/vm/vm-stack.h

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+/* 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 */