xref: /third_party/jerryscript/jerry-core/vm/vm.h (revision 425bb815)
1/* Copyright JS Foundation and other contributors, http://js.foundation
2 *
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 *     http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16#ifndef VM_H
17#define VM_H
18
19#include "ecma-globals.h"
20#include "jrt.h"
21#include "vm-defines.h"
22
23/** \addtogroup vm Virtual machine
24 * @{
25 *
26 * \addtogroup vm_executor Executor
27 * @{
28 */
29
30/**
31 * Each CBC opcode is transformed to three vm opcodes:
32 *
33 *  - first opcode is a "get arguments" opcode which specifies
34 *    the type (register, literal, stack, etc.) and number
35 *    (from 0 to 2) of input arguments
36 *  - second opcode is a "group" opcode which specifies
37 *    the actual operation (add, increment, call, etc.)
38 *  - third opcode is a "put result" opcode which specifies
39 *    the destination where the result is stored (register,
40 *    stack, etc.)
41 */
42
43/**
44 * If VM_OC_GET_ARGS_INDEX(opcode) == VM_OC_GET_BRANCH,
45 * this flag signals that the branch is a backward branch.
46 */
47#define VM_OC_BACKWARD_BRANCH (1 << 15)
48
49/**
50 * Position of "get arguments" opcode.
51 */
52#define VM_OC_GET_ARGS_SHIFT 8
53
54/**
55 * Mask of "get arguments" opcode.
56 */
57#define VM_OC_GET_ARGS_MASK 0x7
58
59/**
60 * Generate the binary representation of a "get arguments" opcode.
61 */
62#define VM_OC_GET_ARGS_CREATE_INDEX(V) (((V) & VM_OC_GET_ARGS_MASK) << VM_OC_GET_ARGS_SHIFT)
63
64/**
65 * Extract the "get arguments" opcode.
66 */
67#define VM_OC_GET_ARGS_INDEX(O) ((O) & (VM_OC_GET_ARGS_MASK << VM_OC_GET_ARGS_SHIFT))
68
69/**
70 * Checks whether the result is stored somewhere.
71 */
72#define VM_OC_HAS_GET_ARGS(V) ((V) & (VM_OC_GET_ARGS_MASK << VM_OC_GET_ARGS_SHIFT))
73
74/**
75 * Argument getters that are part of the opcodes.
76 */
77typedef enum
78{
79  VM_OC_GET_NONE = VM_OC_GET_ARGS_CREATE_INDEX (0),             /**< do nothing */
80  VM_OC_GET_BRANCH = VM_OC_GET_ARGS_CREATE_INDEX (1),           /**< branch argument */
81  VM_OC_GET_STACK = VM_OC_GET_ARGS_CREATE_INDEX (2),            /**< pop one element from the stack */
82  VM_OC_GET_STACK_STACK = VM_OC_GET_ARGS_CREATE_INDEX (3),      /**< pop two elements from the stack */
83
84  VM_OC_GET_LITERAL = VM_OC_GET_ARGS_CREATE_INDEX (4),          /**< resolve literal */
85  VM_OC_GET_LITERAL_LITERAL = VM_OC_GET_ARGS_CREATE_INDEX (5),  /**< resolve two literals */
86  VM_OC_GET_STACK_LITERAL = VM_OC_GET_ARGS_CREATE_INDEX (6),    /**< pop one element from the stack
87                                                                 *   and resolve a literal */
88  VM_OC_GET_THIS_LITERAL = VM_OC_GET_ARGS_CREATE_INDEX (7),     /**< get this and resolve a literal */
89} vm_oc_get_types;
90
91/**
92 * Mask of "group" opcode.
93 */
94#define VM_OC_GROUP_MASK 0xff
95
96/**
97 * Extract the "group" opcode.
98 */
99#define VM_OC_GROUP_GET_INDEX(O) ((O) & VM_OC_GROUP_MASK)
100
101/**
102 * Opcodes.
103 */
104typedef enum
105{
106  VM_OC_POP,                     /**< pop from stack */
107  VM_OC_POP_BLOCK,               /**< pop block */
108  VM_OC_PUSH,                    /**< push one literal  */
109  VM_OC_PUSH_TWO,                /**< push two literals */
110  VM_OC_PUSH_THREE,              /**< push three literals */
111  VM_OC_PUSH_UNDEFINED,          /**< push undefined value */
112  VM_OC_PUSH_TRUE,               /**< push true value */
113  VM_OC_PUSH_FALSE,              /**< push false value */
114  VM_OC_PUSH_NULL,               /**< push null value */
115  VM_OC_PUSH_THIS,               /**< push this */
116  VM_OC_PUSH_0,                  /**< push number zero */
117  VM_OC_PUSH_POS_BYTE,           /**< push number between 1 and 256 */
118  VM_OC_PUSH_NEG_BYTE,           /**< push number between -1 and -256 */
119  VM_OC_PUSH_LIT_0,              /**< push literal and number zero */
120  VM_OC_PUSH_LIT_POS_BYTE,       /**< push literal and number between 1 and 256 */
121  VM_OC_PUSH_LIT_NEG_BYTE,       /**< push literal and number between -1 and -256 */
122  VM_OC_PUSH_OBJECT,             /**< push object */
123  VM_OC_PUSH_NAMED_FUNC_EXPR,    /**< push named function expression */
124  VM_OC_SET_PROPERTY,            /**< set property */
125
126  VM_OC_SET_GETTER,              /**< set getter */
127  VM_OC_SET_SETTER,              /**< set setter */
128  VM_OC_PUSH_ARRAY,              /**< push array */
129  VM_OC_PUSH_ELISON,             /**< push elison */
130  VM_OC_APPEND_ARRAY,            /**< append array */
131  VM_OC_IDENT_REFERENCE,         /**< ident reference */
132  VM_OC_PROP_REFERENCE,          /**< prop reference */
133  VM_OC_PROP_GET,                /**< prop get */
134
135  /* These eight opcodes must be in this order. */
136  VM_OC_PROP_PRE_INCR,           /**< prefix increment of a property */
137  VM_OC_PROP_PRE_DECR,           /**< prop prefix decrement of a property */
138  VM_OC_PROP_POST_INCR,          /**< prop postfix increment of a property */
139  VM_OC_PROP_POST_DECR,          /**< prop postfix decrement of a property */
140  VM_OC_PRE_INCR,                /**< prefix increment  */
141  VM_OC_PRE_DECR,                /**< prefix decrement */
142  VM_OC_POST_INCR,               /**< postfix increment */
143  VM_OC_POST_DECR,               /**< postfix decrement */
144
145  VM_OC_PROP_DELETE,             /**< delete property */
146  VM_OC_DELETE,                  /**< delete */
147
148  VM_OC_MOV_IDENT,               /**< move identifier register reference */
149  VM_OC_ASSIGN,                  /**< assign */
150  VM_OC_ASSIGN_PROP,             /**< assign property */
151  VM_OC_ASSIGN_PROP_THIS,        /**< assign prop this */
152
153  VM_OC_RETURN,                  /**< return */
154  VM_OC_THROW,                   /**< throw */
155  VM_OC_THROW_REFERENCE_ERROR,   /**< throw reference error */
156
157  VM_OC_EVAL,                    /**< eval */
158  VM_OC_CALL,                    /**< call */
159  VM_OC_NEW,                     /**< new */
160  VM_OC_RESOLVE_BASE_FOR_CALL,   /**< resolve base value before call */
161  VM_OC_ERROR,                   /**< error while the vm_loop is suspended */
162
163  VM_OC_JUMP,                    /**< jump */
164  VM_OC_BRANCH_IF_STRICT_EQUAL,  /**< branch if strict equal */
165
166  /* These four opcodes must be in this order. */
167  VM_OC_BRANCH_IF_TRUE,          /**< branch if true */
168  VM_OC_BRANCH_IF_FALSE,         /**< branch if false */
169  VM_OC_BRANCH_IF_LOGICAL_TRUE,  /**< branch if logical true */
170  VM_OC_BRANCH_IF_LOGICAL_FALSE, /**< branch if logical false */
171
172  VM_OC_PLUS,                    /**< unary plus */
173  VM_OC_MINUS,                   /**< unary minus */
174  VM_OC_NOT,                     /**< not */
175  VM_OC_BIT_NOT,                 /**< bitwise not */
176  VM_OC_VOID,                    /**< void */
177  VM_OC_TYPEOF_IDENT,            /**< typeof identifier */
178  VM_OC_TYPEOF,                  /**< typeof */
179
180  VM_OC_ADD,                     /**< binary add */
181  VM_OC_SUB,                     /**< binary sub */
182  VM_OC_MUL,                     /**< mul */
183  VM_OC_DIV,                     /**< div */
184  VM_OC_MOD,                     /**< mod */
185#if ENABLED (JERRY_ES2015)
186  VM_OC_EXP,                     /**< exponentiation */
187#endif /* ENABLED (JERRY_ES2015) */
188
189  VM_OC_EQUAL,                   /**< equal */
190  VM_OC_NOT_EQUAL,               /**< not equal */
191  VM_OC_STRICT_EQUAL,            /**< strict equal */
192  VM_OC_STRICT_NOT_EQUAL,        /**< strict not equal */
193  VM_OC_LESS,                    /**< less */
194  VM_OC_GREATER,                 /**< greater */
195  VM_OC_LESS_EQUAL,              /**< less equal */
196  VM_OC_GREATER_EQUAL,           /**< greater equal */
197  VM_OC_IN,                      /**< in */
198  VM_OC_INSTANCEOF,              /**< instanceof */
199
200  VM_OC_BIT_OR,                  /**< bitwise or */
201  VM_OC_BIT_XOR,                 /**< bitwise xor */
202  VM_OC_BIT_AND,                 /**< bitwise and */
203  VM_OC_LEFT_SHIFT,              /**< left shift */
204  VM_OC_RIGHT_SHIFT,             /**< right shift */
205  VM_OC_UNS_RIGHT_SHIFT,         /**< unsigned right shift */
206
207  VM_OC_BLOCK_CREATE_CONTEXT,    /**< create lexical environment for blocks enclosed in braces */
208  VM_OC_WITH,                    /**< with */
209  VM_OC_FOR_IN_CREATE_CONTEXT,   /**< for in create context */
210  VM_OC_FOR_IN_GET_NEXT,         /**< get next */
211  VM_OC_FOR_IN_HAS_NEXT,         /**< has next */
212
213  VM_OC_TRY,                     /**< try */
214  VM_OC_CATCH,                   /**< catch */
215  VM_OC_FINALLY,                 /**< finally */
216  VM_OC_CONTEXT_END,             /**< context end */
217  VM_OC_JUMP_AND_EXIT_CONTEXT,   /**< jump and exit context */
218
219  VM_OC_CREATE_BINDING,          /**< create variables */
220  VM_OC_SET_BYTECODE_PTR,        /**< setting bytecode pointer */
221  VM_OC_VAR_EVAL,                /**< variable and function evaluation */
222#if ENABLED (JERRY_ES2015)
223  VM_OC_EXT_VAR_EVAL,            /**< variable and function evaluation for
224                                  *   functions with separate argument context */
225#endif /* ENABLED (JERRY_ES2015) */
226  VM_OC_INIT_ARG_OR_FUNC,        /**< create and init a function or argument binding */
227
228#if ENABLED (JERRY_DEBUGGER)
229  VM_OC_BREAKPOINT_ENABLED,      /**< enabled breakpoint for debugger */
230  VM_OC_BREAKPOINT_DISABLED,     /**< disabled breakpoint for debugger */
231#endif /* ENABLED (JERRY_DEBUGGER) */
232#if ENABLED (JERRY_LINE_INFO) || ENABLED (JERRY_ES2015_MODULE_SYSTEM)
233  VM_OC_RESOURCE_NAME,           /**< resource name of the current function */
234#endif /* ENABLED (JERRY_LINE_INFO) || ENABLED (JERRY_ES2015_MODULE_SYSTEM) */
235#if ENABLED (JERRY_LINE_INFO)
236  VM_OC_LINE,                    /**< line number of the next statement */
237#endif /* ENABLED (JERRY_LINE_INFO) */
238#if ENABLED (JERRY_ES2015)
239  VM_OC_CHECK_VAR,               /**< check redeclared vars in the global scope */
240  VM_OC_CHECK_LET,               /**< check redeclared lets in the global scope */
241  VM_OC_ASSIGN_LET_CONST,        /**< assign values to let/const declarations */
242  VM_OC_INIT_BINDING,            /**< create and intialize a binding */
243  VM_OC_THROW_CONST_ERROR,       /**< throw invalid assignment to const variable error */
244  VM_OC_COPY_TO_GLOBAL,          /**< copy value to global lex env */
245  VM_OC_COPY_FROM_ARG,           /**< copy value from arg lex env */
246  VM_OC_CLONE_CONTEXT,           /**< clone lexical environment with let/const declarations */
247  VM_OC_SET_COMPUTED_PROPERTY,   /**< set computed property */
248
249  VM_OC_FOR_OF_CREATE_CONTEXT,   /**< for of create context */
250  VM_OC_FOR_OF_GET_NEXT,         /**< get next */
251  VM_OC_FOR_OF_HAS_NEXT,         /**< has next */
252
253  VM_OC_LOCAL_EVAL,              /**< eval in local context */
254  VM_OC_SUPER_CALL,              /**< call the 'super' constructor */
255  VM_OC_PUSH_CLASS_ENVIRONMENT,  /**< push class environment */
256  VM_OC_PUSH_IMPLICIT_CTOR,      /**< create implicit class constructor */
257  VM_OC_INIT_CLASS,              /**< initialize class */
258  VM_OC_FINALIZE_CLASS,          /**< finalize class */
259  VM_OC_PUSH_SUPER_CONSTRUCTOR,  /**< getSuperConstructor operation */
260  VM_OC_RESOLVE_LEXICAL_THIS,    /**< resolve this_binding from from the lexical environment */
261  VM_OC_SUPER_REFERENCE,         /**< push super reference */
262
263  VM_OC_PUSH_SPREAD_ELEMENT,     /**< push spread element */
264  VM_OC_GET_ITERATOR,            /**< GetIterator abstract operation */
265  VM_OC_ITERATOR_STEP,           /**< IteratorStep abstract operation */
266  VM_OC_ITERATOR_CLOSE,          /**< IteratorClose abstract operation */
267  VM_OC_DEFAULT_INITIALIZER,     /**< default initializer inside a pattern */
268  VM_OC_REST_INITIALIZER,        /**< create rest object inside an array pattern */
269  VM_OC_INITIALIZER_PUSH_PROP,   /**< push property for object initializer */
270  VM_OC_SPREAD_ARGUMENTS,        /**< perform function call/construct with spreaded arguments */
271  VM_OC_CREATE_GENERATOR,        /**< create a generator object */
272  VM_OC_YIELD,                   /**< yield operation */
273  VM_OC_AWAIT,                   /**< await operation */
274  VM_OC_EXT_RETURN,              /**< return which also clears the stack */
275  VM_OC_RETURN_PROMISE,          /**< return from an async function */
276  VM_OC_STRING_CONCAT,           /**< string concatenation */
277  VM_OC_GET_TEMPLATE_OBJECT,     /**< GetTemplateObject operation */
278  VM_OC_PUSH_NEW_TARGET,         /**< push new.target onto the stack */
279  VM_OC_REQUIRE_OBJECT_COERCIBLE,/**< RequireObjectCoercible opretaion */
280  VM_OC_ASSIGN_SUPER,            /**< assign super reference */
281  VM_OC_SET__PROTO__,            /**< set prototpe when __proto__: form is used */
282#endif /* ENABLED (JERRY_ES2015) */
283  VM_OC_NONE,                    /**< a special opcode for unsupported byte codes */
284} vm_oc_types;
285
286/**
287 * Unused opcodes, but required by byte-code types.
288 */
289typedef enum
290{
291#if !ENABLED (JERRY_ES2015)
292  VM_OC_EXP = VM_OC_NONE,                     /**< exponentiation */
293#endif /* !ENABLED (JERRY_ES2015) */
294#if !ENABLED (JERRY_DEBUGGER)
295  VM_OC_BREAKPOINT_ENABLED = VM_OC_NONE,      /**< enabled breakpoint for debugger is unused */
296  VM_OC_BREAKPOINT_DISABLED = VM_OC_NONE,     /**< disabled breakpoint for debugger is unused */
297#endif /* !ENABLED (JERRY_DEBUGGER) */
298#if !ENABLED (JERRY_LINE_INFO) && !ENABLED (JERRY_ES2015_MODULE_SYSTEM)
299  VM_OC_RESOURCE_NAME = VM_OC_NONE,           /**< resource name of the current function is unused */
300#endif /* !ENABLED (JERRY_LINE_INFO) && !ENABLED (JERRY_ES2015_MODULE_SYSTEM) */
301#if !ENABLED (JERRY_LINE_INFO)
302  VM_OC_LINE = VM_OC_NONE,                    /**< line number of the next statement is unused */
303#endif /* !ENABLED (JERRY_LINE_INFO) */
304#if !ENABLED (JERRY_ES2015)
305  VM_OC_EXT_VAR_EVAL = VM_OC_NONE,            /**< variable and function evaluation for
306                                               *   functions with separate argument context */
307  VM_OC_CHECK_VAR = VM_OC_NONE,               /**< check redeclared vars in the global scope */
308  VM_OC_CHECK_LET = VM_OC_NONE,               /**< check redeclared lets in the global scope */
309  VM_OC_ASSIGN_LET_CONST = VM_OC_NONE,        /**< assign values to let/const declarations */
310  VM_OC_INIT_BINDING = VM_OC_NONE,            /**< create and intialize a binding */
311  VM_OC_THROW_CONST_ERROR = VM_OC_NONE,       /**< throw invalid assignment to const variable error */
312  VM_OC_COPY_TO_GLOBAL = VM_OC_NONE,          /**< copy value to global lex env */
313  VM_OC_COPY_FROM_ARG = VM_OC_NONE,           /**< copy value from arg lex env */
314  VM_OC_CLONE_CONTEXT = VM_OC_NONE,           /**< clone lexical environment with let/const declarations */
315  VM_OC_SET_COMPUTED_PROPERTY = VM_OC_NONE,   /**< set computed property is unused */
316
317  VM_OC_FOR_OF_CREATE_CONTEXT = VM_OC_NONE,   /**< for of create context */
318  VM_OC_FOR_OF_GET_NEXT = VM_OC_NONE,         /**< get next */
319  VM_OC_FOR_OF_HAS_NEXT = VM_OC_NONE,         /**< has next */
320
321  VM_OC_LOCAL_EVAL = VM_OC_NONE,              /**< eval in local context */
322  VM_OC_SUPER_CALL = VM_OC_NONE,              /**< call the 'super' constructor */
323  VM_OC_PUSH_CLASS_ENVIRONMENT = VM_OC_NONE,  /**< push class environment */
324  VM_OC_PUSH_IMPLICIT_CTOR = VM_OC_NONE,      /**< create implicit class constructor */
325  VM_OC_INIT_CLASS = VM_OC_NONE,              /**< initialize class */
326  VM_OC_FINALIZE_CLASS = VM_OC_NONE,          /**< finalize class */
327  VM_OC_PUSH_SUPER_CONSTRUCTOR = VM_OC_NONE,  /**< getSuperConstructor operation */
328  VM_OC_RESOLVE_LEXICAL_THIS = VM_OC_NONE,    /**< resolve this_binding from from the lexical environment */
329  VM_OC_SUPER_REFERENCE = VM_OC_NONE,         /**< push super reference */
330
331  VM_OC_PUSH_SPREAD_ELEMENT = VM_OC_NONE,     /**< push spread element */
332  VM_OC_GET_ITERATOR = VM_OC_NONE,            /**< GetIterator abstract operation */
333  VM_OC_ITERATOR_STEP = VM_OC_NONE,           /**< IteratorStep abstract operation */
334  VM_OC_ITERATOR_CLOSE = VM_OC_NONE,          /**< IteratorClose abstract operation */
335  VM_OC_DEFAULT_INITIALIZER = VM_OC_NONE,     /**< default initializer inside a pattern */
336  VM_OC_REST_INITIALIZER = VM_OC_NONE,        /**< create rest object inside an array pattern */
337  VM_OC_INITIALIZER_PUSH_PROP = VM_OC_NONE,   /**< push property for object initializer */
338  VM_OC_SPREAD_ARGUMENTS = VM_OC_NONE,        /**< perform function call/construct with spreaded arguments */
339  VM_OC_CREATE_GENERATOR = VM_OC_NONE,        /**< create a generator object */
340  VM_OC_YIELD = VM_OC_NONE,                   /**< yield operation */
341  VM_OC_AWAIT = VM_OC_NONE,                   /**< await operation */
342  VM_OC_EXT_RETURN = VM_OC_NONE,              /**< return which also clears the stack */
343  VM_OC_RETURN_PROMISE = VM_OC_NONE,          /**< return from an async function */
344  VM_OC_STRING_CONCAT = VM_OC_NONE,           /**< string concatenation */
345  VM_OC_GET_TEMPLATE_OBJECT = VM_OC_NONE,     /**< GetTemplateObject operation */
346  VM_OC_PUSH_NEW_TARGET = VM_OC_NONE,         /**< push new.target onto the stack */
347  VM_OC_REQUIRE_OBJECT_COERCIBLE = VM_OC_NONE,/**< RequireObjectCoercible opretaion */
348  VM_OC_ASSIGN_SUPER = VM_OC_NONE,            /**< assign super reference */
349  VM_OC_SET__PROTO__ = VM_OC_NONE,            /**< set prototpe when __proto__: form is used */
350#endif /* !ENABLED (JERRY_ES2015) */
351
352  VM_OC_UNUSED = VM_OC_NONE                   /**< placeholder if the list is empty */
353} vm_oc_unused_types;
354
355/**
356 * Decrement operator.
357 */
358#define VM_OC_DECREMENT_OPERATOR_FLAG 0x1
359
360/**
361 * Postfix increment/decrement operator.
362 */
363#define VM_OC_POST_INCR_DECR_OPERATOR_FLAG 0x2
364
365/**
366 * An named variable is updated by the increment/decrement operator.
367 */
368#define VM_OC_IDENT_INCR_DECR_OPERATOR_FLAG 0x4
369
370/**
371 * Jump to target offset if input value is logical false.
372 */
373#define VM_OC_BRANCH_IF_FALSE_FLAG 0x1
374
375/**
376 * Branch optimized for logical and/or opcodes.
377 */
378#define VM_OC_LOGICAL_BRANCH_FLAG 0x2
379
380/**
381 * Bit index shift for non-static property initializers.
382 */
383#define VM_OC_NON_STATIC_SHIFT 15
384
385/**
386 * This flag is set for static property initializers.
387 */
388#define VM_OC_NON_STATIC_FLAG (0x1 << VM_OC_NON_STATIC_SHIFT)
389
390/**
391 * Position of "put result" opcode.
392 */
393#define VM_OC_PUT_RESULT_SHIFT 11
394
395/**
396 * Mask of "put result" opcode.
397 */
398#define VM_OC_PUT_RESULT_MASK 0xf
399
400/**
401 * Generate a "put result" opcode flag bit.
402 */
403#define VM_OC_PUT_RESULT_CREATE_FLAG(V) (((V) & VM_OC_PUT_RESULT_MASK) << VM_OC_PUT_RESULT_SHIFT)
404
405/**
406 * Checks whether the result is stored somewhere.
407 */
408#define VM_OC_HAS_PUT_RESULT(V) ((V) & (VM_OC_PUT_RESULT_MASK << VM_OC_PUT_RESULT_SHIFT))
409
410/**
411 * Specify where the result is stored
412 */
413typedef enum
414{
415  VM_OC_PUT_IDENT = VM_OC_PUT_RESULT_CREATE_FLAG (0x1),
416  VM_OC_PUT_REFERENCE = VM_OC_PUT_RESULT_CREATE_FLAG (0x2),
417  VM_OC_PUT_STACK = VM_OC_PUT_RESULT_CREATE_FLAG (0x4),
418  VM_OC_PUT_BLOCK = VM_OC_PUT_RESULT_CREATE_FLAG (0x8),
419} vm_oc_put_types;
420
421/**
422 * Non-recursive vm_loop: the vm_loop can be suspended
423 * to execute a call /construct operation. These return
424 * types of the vm_loop tells whether a call operation
425 * is in progress or the vm_loop is finished.
426 */
427typedef enum
428{
429  VM_NO_EXEC_OP,                 /**< do nothing */
430  VM_EXEC_CALL,                  /**< invoke a function */
431  VM_EXEC_SUPER_CALL,            /**< invoke a function through 'super' keyword */
432  VM_EXEC_SPREAD_OP,             /**< call/construct operation with spreaded argument list */
433  VM_EXEC_RETURN,                /**< return with the completion value without freeing registers */
434  VM_EXEC_CONSTRUCT,             /**< construct a new object */
435} vm_call_operation;
436
437ecma_value_t vm_run_global (const ecma_compiled_code_t *bytecode_p);
438ecma_value_t vm_run_eval (ecma_compiled_code_t *bytecode_data_p, uint32_t parse_opts);
439
440#if ENABLED (JERRY_ES2015_MODULE_SYSTEM)
441ecma_value_t vm_run_module (const ecma_compiled_code_t *bytecode_p, ecma_object_t *lex_env_p);
442#endif /* ENABLED (JERRY_ES2015_MODULE_SYSTEM) */
443
444ecma_value_t vm_run (const ecma_compiled_code_t *bytecode_header_p, ecma_value_t this_binding_value,
445                     ecma_object_t *lex_env_p, const ecma_value_t *arg_list_p, ecma_length_t arg_list_len);
446ecma_value_t vm_execute (vm_frame_ctx_t *frame_ctx_p);
447
448bool vm_is_strict_mode (void);
449bool vm_is_direct_eval_form_call (void);
450
451ecma_value_t vm_get_backtrace (uint32_t max_depth);
452
453/**
454 * @}
455 * @}
456 */
457
458#endif /* !VM_H */
459