/* Copyright JS Foundation and other contributors, http://js.foundation * * 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 BYTE_CODE_H #define BYTE_CODE_H #include "ecma-globals.h" /** \addtogroup parser Parser * @{ * * \addtogroup jsparser JavaScript * @{ * * \addtogroup jsparser_bytecode Bytecode * @{ */ /** * Compact byte code (CBC) is a byte code representation * of EcmaScript which is designed for low memory * environments. Most opcodes are only one or sometimes * two byte long so the CBC provides a small binary size. * * The execution engine of CBC is a stack machine, where * the maximum stack size is known in advance for each * function. */ /** * Byte code flags. Only the lower 5 bit can be used * since the stack change is encoded in the upper * three bits for each instruction between -4 and 3 * (except for call / construct opcodes). */ #define CBC_STACK_ADJUST_BASE 4 #define CBC_STACK_ADJUST_SHIFT 5 #define CBC_STACK_ADJUST_VALUE(value) (((value) >> CBC_STACK_ADJUST_SHIFT) - CBC_STACK_ADJUST_BASE) #define CBC_NO_FLAG 0x00u #define CBC_HAS_LITERAL_ARG 0x01u #define CBC_HAS_LITERAL_ARG2 0x02u #define CBC_HAS_BYTE_ARG 0x04u #define CBC_HAS_BRANCH_ARG 0x08u /* These flags are shared */ #define CBC_FORWARD_BRANCH_ARG 0x10u #define CBC_POP_STACK_BYTE_ARG 0x10u #define CBC_ARG_TYPES (CBC_HAS_LITERAL_ARG | CBC_HAS_LITERAL_ARG2 | CBC_HAS_BYTE_ARG | CBC_HAS_BRANCH_ARG) #define CBC_HAS_POP_STACK_BYTE_ARG (CBC_HAS_BYTE_ARG | CBC_POP_STACK_BYTE_ARG) #if JERRY_ESNEXT /** * CBC_NO_RESULT_OPERATION for ext opcodes */ #define CBC_EXT_NO_RESULT_OPERATION(opcode) \ ((opcode) >= PARSER_TO_EXT_OPCODE (CBC_EXT_ASSIGN_SUPER) \ && (opcode) <= PARSER_TO_EXT_OPCODE (CBC_EXT_SPREAD_CALL_PROP_BLOCK)) #else /* !JERRY_ESNEXT */ /** * CBC_NO_RESULT_OPERATION for ext opcodes */ #define CBC_EXT_NO_RESULT_OPERATION(opcode) false #endif /* JERRY_ESNEXT */ /* Debug macro. */ #define CBC_ARGS_EQ(op, types) ((cbc_flags[op] & CBC_ARG_TYPES) == (types)) /* Debug macro. */ #define CBC_SAME_ARGS(op1, op2) \ (CBC_EXT_NO_RESULT_OPERATION (op1) ? ((cbc_ext_flags[PARSER_GET_EXT_OPCODE (op1)] & CBC_ARG_TYPES) \ == (cbc_ext_flags[PARSER_GET_EXT_OPCODE (op2)] & CBC_ARG_TYPES)) \ : ((cbc_flags[op1] & CBC_ARG_TYPES) == (cbc_flags[op2] & CBC_ARG_TYPES))) #define CBC_UNARY_OPERATION(name, group) \ CBC_OPCODE (name, CBC_NO_FLAG, 0, (VM_OC_##group) | VM_OC_GET_STACK | VM_OC_PUT_STACK) \ CBC_OPCODE (name##_LITERAL, CBC_HAS_LITERAL_ARG, 1, (VM_OC_##group) | VM_OC_GET_LITERAL | VM_OC_PUT_STACK) #define CBC_BINARY_OPERATION(name, group) \ CBC_OPCODE (name, CBC_NO_FLAG, -1, (VM_OC_##group) | VM_OC_GET_STACK_STACK | VM_OC_PUT_STACK) \ CBC_OPCODE (name##_RIGHT_LITERAL, \ CBC_HAS_LITERAL_ARG, \ 0, \ (VM_OC_##group) | VM_OC_GET_STACK_LITERAL | VM_OC_PUT_STACK) \ CBC_OPCODE (name##_TWO_LITERALS, \ CBC_HAS_LITERAL_ARG | CBC_HAS_LITERAL_ARG2, \ 1, \ (VM_OC_##group) | VM_OC_GET_LITERAL_LITERAL | VM_OC_PUT_STACK) #define CBC_UNARY_LVALUE_OPERATION(name, group) \ CBC_OPCODE (name, CBC_NO_FLAG, -2, (VM_OC_PROP_##group) | VM_OC_GET_STACK_STACK | VM_OC_PUT_REFERENCE) \ CBC_OPCODE (name##_PUSH_RESULT, \ CBC_NO_FLAG, \ -1, \ (VM_OC_PROP_##group) | VM_OC_GET_STACK_STACK | VM_OC_PUT_REFERENCE | VM_OC_PUT_STACK) \ CBC_OPCODE (name##_BLOCK, \ CBC_NO_FLAG, \ -2, \ (VM_OC_PROP_##group) | VM_OC_GET_STACK_STACK | VM_OC_PUT_REFERENCE | VM_OC_PUT_BLOCK) \ CBC_OPCODE (name##_IDENT, CBC_HAS_LITERAL_ARG, 0, (VM_OC_##group) | VM_OC_GET_LITERAL | VM_OC_PUT_IDENT) \ CBC_OPCODE (name##_IDENT_PUSH_RESULT, \ CBC_HAS_LITERAL_ARG, \ 1, \ (VM_OC_##group) | VM_OC_GET_LITERAL | VM_OC_PUT_IDENT | VM_OC_PUT_STACK) \ CBC_OPCODE (name##_IDENT_BLOCK, \ CBC_HAS_LITERAL_ARG, \ 0, \ (VM_OC_##group) | VM_OC_GET_LITERAL | VM_OC_PUT_IDENT | VM_OC_PUT_BLOCK) #define CBC_UNARY_LVALUE_WITH_IDENT 3 #define CBC_BINARY_WITH_LITERAL 1 #define CBC_BINARY_WITH_TWO_LITERALS 2 /** * Several opcodes (mostly call and assignment opcodes) have * two forms: one which does not push a return value onto * the stack, and another which does. The reason is that * the return value of these opcodes are often not used * and the first form provides smaller byte code. * * The following rules must be kept by the code generator: * - only the opcode without return value can be emitted * by the code generator * - the first form can be converted to the second form * by adding 1 to the opcode * - after the conversion the opcode must be immediately * flushed, so no further changes are possible * * Hence CBC_NO_RESULT_OPERATION (context_p->last_cbc_opcode) * cannot be true for an opcode which has a result */ #define CBC_NO_RESULT_OPERATION(opcode) \ (((opcode) >= CBC_PRE_INCR && (opcode) < CBC_END) || CBC_EXT_NO_RESULT_OPERATION ((opcode))) /** * Branch instructions are organized in group of 8 opcodes. * - 1st opcode: unused, can be used for other purpose * - 2nd opcode: forward branch with 1 byte offset * - 3rd opcode: forward branch with 2 byte offset * - 4th opcode: forward branch with 3 byte offset * - 5th opcode: unused, can be used for other purpose * - 6th opcode: backward branch with 1 byte offset * - 7th opcode: backward branch with 2 byte offset * - 8th opcode: backward branch with 3 byte offset * * Reasons: * The branch_opcode & 0x3 tells the length in bytes of the offset * If branch offset & 0x4 == 0, it is a forward branch. Otherwise * it is backward. * * The offset bytes are encoded in higher to lower order. */ #define CBC_FORWARD_BRANCH(name, stack, vm_oc) \ CBC_OPCODE (name, CBC_HAS_BRANCH_ARG | CBC_FORWARD_BRANCH_ARG, stack, (vm_oc) | VM_OC_GET_BRANCH) \ CBC_OPCODE (name##_2, CBC_HAS_BRANCH_ARG | CBC_FORWARD_BRANCH_ARG, stack, (vm_oc) | VM_OC_GET_BRANCH) \ CBC_OPCODE (name##_3, CBC_HAS_BRANCH_ARG | CBC_FORWARD_BRANCH_ARG, stack, (vm_oc) | VM_OC_GET_BRANCH) #define CBC_BACKWARD_BRANCH(name, stack, vm_oc) \ CBC_OPCODE (name, CBC_HAS_BRANCH_ARG, stack, (vm_oc) | VM_OC_GET_BRANCH | VM_OC_BACKWARD_BRANCH) \ CBC_OPCODE (name##_2, CBC_HAS_BRANCH_ARG, stack, (vm_oc) | VM_OC_GET_BRANCH | VM_OC_BACKWARD_BRANCH) \ CBC_OPCODE (name##_3, CBC_HAS_BRANCH_ARG, stack, (vm_oc) | VM_OC_GET_BRANCH | VM_OC_BACKWARD_BRANCH) #define CBC_BRANCH_OFFSET_LENGTH(opcode) ((opcode) &0x3) #define CBC_BRANCH_IS_BACKWARD(flags) (!((flags) &CBC_FORWARD_BRANCH_ARG)) #define CBC_BRANCH_IS_FORWARD(flags) ((flags) &CBC_FORWARD_BRANCH_ARG) /* Stack consumption of opcodes with context. */ /* PARSER_TRY_CONTEXT_STACK_ALLOCATION must be <= 3 */ #define PARSER_TRY_CONTEXT_STACK_ALLOCATION 1 /* PARSER_FINALLY_CONTEXT_STACK_ALLOCATION must be <= 3 */ #define PARSER_FINALLY_CONTEXT_STACK_ALLOCATION 2 /* PARSER_FOR_IN_CONTEXT_STACK_ALLOCATION must be <= 4 */ #define PARSER_FOR_IN_CONTEXT_STACK_ALLOCATION 4 /* PARSER_FOR_OF_CONTEXT_STACK_ALLOCATION must be <= 4 */ #define PARSER_FOR_OF_CONTEXT_STACK_ALLOCATION 4 /* PARSER_FOR_AWAIT_OF_CONTEXT_STACK_ALLOCATION must be <= 4 */ #define PARSER_FOR_AWAIT_OF_CONTEXT_STACK_ALLOCATION 4 /* PARSER_WITH_CONTEXT_STACK_ALLOCATION must be <= 4 */ #define PARSER_WITH_CONTEXT_STACK_ALLOCATION 1 /* PARSER_BLOCK_CONTEXT_STACK_ALLOCATION must be <= 3 */ #define PARSER_BLOCK_CONTEXT_STACK_ALLOCATION 1 /* PARSER_ITERATOR_CONTEXT_STACK_ALLOCATION must be <= 3 */ #define PARSER_ITERATOR_CONTEXT_STACK_ALLOCATION 3 /* PARSER_OBJECT_INITIALIZER_CONTEXT_STACK_ALLOCATION must be <= 2 */ #define PARSER_OBJ_INIT_CONTEXT_STACK_ALLOCATION 1 /* PARSER_OBJECT_INITIALIZER_CONTEXT_STACK_ALLOCATION must be <= 2 */ #define PARSER_OBJ_INIT_REST_CONTEXT_STACK_ALLOCATION 2 /** * Extra stack consumption for finally context. */ #define PARSER_FINALLY_CONTEXT_EXTRA_STACK_ALLOCATION \ (PARSER_FINALLY_CONTEXT_STACK_ALLOCATION - PARSER_TRY_CONTEXT_STACK_ALLOCATION) #define PARSER_STATIC_PRIVATE_TO_PRIVATE_OFFSET (CBC_EXT_COLLECT_PRIVATE_STATIC_FIELD - CBC_EXT_COLLECT_PRIVATE_FIELD) /** * Opcode definitions. */ #define CBC_OPCODE_LIST \ /* Branch opcodes first. Some other opcodes are mixed. */ \ CBC_OPCODE (CBC_EXT_OPCODE, CBC_NO_FLAG, 0, VM_OC_NONE) \ CBC_FORWARD_BRANCH (CBC_JUMP_FORWARD, 0, VM_OC_JUMP) \ CBC_OPCODE (CBC_POP, CBC_NO_FLAG, -1, VM_OC_POP) \ CBC_BACKWARD_BRANCH (CBC_JUMP_BACKWARD, 0, VM_OC_JUMP) \ CBC_OPCODE (CBC_POP_BLOCK, CBC_NO_FLAG, -1, VM_OC_POP_BLOCK | VM_OC_PUT_BLOCK) \ CBC_FORWARD_BRANCH (CBC_BRANCH_IF_TRUE_FORWARD, -1, VM_OC_BRANCH_IF_TRUE) \ CBC_OPCODE (CBC_THROW, CBC_NO_FLAG, -1, VM_OC_THROW | VM_OC_GET_STACK) \ CBC_BACKWARD_BRANCH (CBC_BRANCH_IF_TRUE_BACKWARD, -1, VM_OC_BRANCH_IF_TRUE) \ CBC_OPCODE (CBC_CONTEXT_END, CBC_NO_FLAG, 0, VM_OC_CONTEXT_END) \ CBC_FORWARD_BRANCH (CBC_BRANCH_IF_FALSE_FORWARD, -1, VM_OC_BRANCH_IF_FALSE) \ CBC_OPCODE (CBC_CREATE_OBJECT, CBC_NO_FLAG, 1, VM_OC_PUSH_OBJECT | VM_OC_PUT_STACK) \ CBC_BACKWARD_BRANCH (CBC_BRANCH_IF_FALSE_BACKWARD, -1, VM_OC_BRANCH_IF_FALSE) \ CBC_OPCODE (CBC_SET_PROPERTY, \ CBC_HAS_LITERAL_ARG, \ -1, \ VM_OC_SET_PROPERTY | VM_OC_NON_STATIC_FLAG | VM_OC_GET_STACK_LITERAL) \ CBC_FORWARD_BRANCH (CBC_JUMP_FORWARD_EXIT_CONTEXT, 0, VM_OC_JUMP_AND_EXIT_CONTEXT) \ CBC_OPCODE (CBC_CREATE_ARRAY, CBC_NO_FLAG, 1, VM_OC_PUSH_ARRAY | VM_OC_PUT_STACK) \ CBC_FORWARD_BRANCH (CBC_BRANCH_IF_LOGICAL_TRUE, -1, VM_OC_BRANCH_IF_LOGICAL_TRUE) \ CBC_OPCODE (CBC_ARRAY_APPEND, CBC_HAS_POP_STACK_BYTE_ARG, 0, VM_OC_APPEND_ARRAY) \ CBC_FORWARD_BRANCH (CBC_BRANCH_IF_LOGICAL_FALSE, -1, VM_OC_BRANCH_IF_LOGICAL_FALSE) \ CBC_OPCODE (CBC_PUSH_ELISION, CBC_NO_FLAG, 1, VM_OC_PUSH_ELISON | VM_OC_PUT_STACK) \ CBC_FORWARD_BRANCH (CBC_BRANCH_IF_STRICT_EQUAL, -1, VM_OC_BRANCH_IF_STRICT_EQUAL) \ CBC_OPCODE (CBC_PUSH_NULL, CBC_NO_FLAG, 1, VM_OC_PUSH_NULL | VM_OC_PUT_STACK) \ CBC_FORWARD_BRANCH (CBC_BLOCK_CREATE_CONTEXT, PARSER_BLOCK_CONTEXT_STACK_ALLOCATION, VM_OC_BLOCK_CREATE_CONTEXT) \ \ /* Basic opcodes. Note: These 4 opcodes must me in this order */ \ CBC_OPCODE (CBC_PUSH_LITERAL, CBC_HAS_LITERAL_ARG, 1, VM_OC_PUSH | VM_OC_GET_LITERAL) \ CBC_OPCODE (CBC_PUSH_TWO_LITERALS, \ CBC_HAS_LITERAL_ARG | CBC_HAS_LITERAL_ARG2, \ 2, \ VM_OC_PUSH_TWO | VM_OC_GET_LITERAL_LITERAL) \ CBC_OPCODE (CBC_PUSH_THIS_LITERAL, CBC_HAS_LITERAL_ARG, 2, VM_OC_PUSH_TWO | VM_OC_GET_THIS_LITERAL) \ CBC_OPCODE (CBC_PUSH_THREE_LITERALS, CBC_HAS_LITERAL_ARG2, 3, VM_OC_PUSH_THREE | VM_OC_GET_LITERAL_LITERAL) \ CBC_OPCODE (CBC_PUSH_UNDEFINED, CBC_NO_FLAG, 1, VM_OC_PUSH_UNDEFINED | VM_OC_PUT_STACK) \ CBC_OPCODE (CBC_PUSH_TRUE, CBC_NO_FLAG, 1, VM_OC_PUSH_TRUE | VM_OC_PUT_STACK) \ CBC_OPCODE (CBC_PUSH_FALSE, CBC_NO_FLAG, 1, VM_OC_PUSH_FALSE | VM_OC_PUT_STACK) \ CBC_OPCODE (CBC_PUSH_THIS, CBC_NO_FLAG, 1, VM_OC_PUSH_THIS | VM_OC_PUT_STACK) \ CBC_OPCODE (CBC_PUSH_NUMBER_0, CBC_NO_FLAG, 1, VM_OC_PUSH_0 | VM_OC_PUT_STACK) \ CBC_OPCODE (CBC_PUSH_NUMBER_POS_BYTE, CBC_HAS_BYTE_ARG, 1, VM_OC_PUSH_POS_BYTE | VM_OC_PUT_STACK) \ CBC_OPCODE (CBC_PUSH_NUMBER_NEG_BYTE, CBC_HAS_BYTE_ARG, 1, VM_OC_PUSH_NEG_BYTE | VM_OC_PUT_STACK) \ CBC_OPCODE (CBC_PUSH_LITERAL_PUSH_NUMBER_0, CBC_HAS_LITERAL_ARG, 2, VM_OC_PUSH_LIT_0 | VM_OC_GET_LITERAL) \ CBC_OPCODE (CBC_PUSH_LITERAL_PUSH_NUMBER_POS_BYTE, \ CBC_HAS_LITERAL_ARG | CBC_HAS_BYTE_ARG, \ 2, \ VM_OC_PUSH_LIT_POS_BYTE | VM_OC_GET_LITERAL) \ CBC_OPCODE (CBC_PUSH_LITERAL_PUSH_NUMBER_NEG_BYTE, \ CBC_HAS_LITERAL_ARG | CBC_HAS_BYTE_ARG, \ 2, \ VM_OC_PUSH_LIT_NEG_BYTE | VM_OC_GET_LITERAL) \ /* Note: These 4 opcodes must me in this order */ \ CBC_OPCODE (CBC_PUSH_PROP, CBC_NO_FLAG, -1, VM_OC_PROP_GET | VM_OC_GET_STACK_STACK | VM_OC_PUT_STACK) \ CBC_OPCODE (CBC_PUSH_PROP_LITERAL, \ CBC_HAS_LITERAL_ARG, \ 0, \ VM_OC_PROP_GET | VM_OC_GET_STACK_LITERAL | VM_OC_PUT_STACK) \ CBC_OPCODE (CBC_PUSH_PROP_LITERAL_LITERAL, \ CBC_HAS_LITERAL_ARG | CBC_HAS_LITERAL_ARG2, \ 1, \ VM_OC_PROP_GET | VM_OC_GET_LITERAL_LITERAL | VM_OC_PUT_STACK) \ CBC_OPCODE (CBC_PUSH_PROP_THIS_LITERAL, \ CBC_HAS_LITERAL_ARG, \ 1, \ VM_OC_PROP_GET | VM_OC_GET_THIS_LITERAL | VM_OC_PUT_STACK) \ CBC_OPCODE (CBC_PUSH_IDENT_REFERENCE, CBC_HAS_LITERAL_ARG, 3, VM_OC_IDENT_REFERENCE | VM_OC_PUT_STACK) \ /* Note: These 4 opcodes must me in this order */ \ CBC_OPCODE (CBC_PUSH_PROP_REFERENCE, CBC_NO_FLAG, 1, VM_OC_PROP_REFERENCE | VM_OC_PUT_STACK) \ CBC_OPCODE (CBC_PUSH_PROP_LITERAL_REFERENCE, \ CBC_HAS_LITERAL_ARG, \ 2, \ VM_OC_PROP_REFERENCE | VM_OC_GET_LITERAL | VM_OC_PUT_STACK) \ CBC_OPCODE (CBC_PUSH_PROP_LITERAL_LITERAL_REFERENCE, \ CBC_HAS_LITERAL_ARG | CBC_HAS_LITERAL_ARG2, \ 3, \ VM_OC_PROP_REFERENCE | VM_OC_GET_LITERAL_LITERAL | VM_OC_PUT_STACK) \ CBC_OPCODE (CBC_PUSH_PROP_THIS_LITERAL_REFERENCE, \ CBC_HAS_LITERAL_ARG, \ 3, \ VM_OC_PROP_REFERENCE | VM_OC_GET_THIS_LITERAL | VM_OC_PUT_STACK) \ CBC_OPCODE (CBC_NEW, CBC_HAS_POP_STACK_BYTE_ARG, 0, VM_OC_NEW | VM_OC_PUT_STACK) \ CBC_OPCODE (CBC_NEW0, CBC_NO_FLAG, 0, VM_OC_NEW | VM_OC_PUT_STACK) \ CBC_OPCODE (CBC_NEW1, CBC_NO_FLAG, -1, VM_OC_NEW | VM_OC_PUT_STACK) \ CBC_OPCODE (CBC_EVAL, CBC_NO_FLAG, 0, VM_OC_EVAL) \ CBC_OPCODE (CBC_CHECK_VAR, CBC_HAS_LITERAL_ARG, 0, VM_OC_CHECK_VAR) \ CBC_OPCODE (CBC_CHECK_LET, CBC_HAS_LITERAL_ARG, 0, VM_OC_CHECK_LET) \ CBC_OPCODE (CBC_CREATE_VAR, CBC_HAS_LITERAL_ARG, 0, VM_OC_CREATE_BINDING) \ CBC_OPCODE (CBC_CREATE_LET, CBC_HAS_LITERAL_ARG, 0, VM_OC_CREATE_BINDING) \ CBC_OPCODE (CBC_CREATE_CONST, CBC_HAS_LITERAL_ARG, 0, VM_OC_CREATE_BINDING) \ CBC_OPCODE (CBC_CREATE_LOCAL, CBC_HAS_LITERAL_ARG, 0, VM_OC_CREATE_BINDING) \ CBC_OPCODE (CBC_INIT_ARG_OR_CATCH, CBC_HAS_LITERAL_ARG, -1, VM_OC_INIT_BINDING) \ CBC_OPCODE (CBC_INIT_LET, CBC_HAS_LITERAL_ARG, -1, VM_OC_INIT_BINDING) \ CBC_OPCODE (CBC_INIT_CONST, CBC_HAS_LITERAL_ARG, -1, VM_OC_INIT_BINDING) \ CBC_OPCODE (CBC_INIT_ARG_OR_FUNC, CBC_HAS_LITERAL_ARG | CBC_HAS_LITERAL_ARG2, 0, VM_OC_INIT_ARG_OR_FUNC) \ CBC_OPCODE (CBC_CREATE_VAR_EVAL, CBC_HAS_LITERAL_ARG, 0, VM_OC_VAR_EVAL) \ CBC_OPCODE (CBC_CREATE_VAR_FUNC_EVAL, CBC_HAS_LITERAL_ARG | CBC_HAS_LITERAL_ARG2, 0, VM_OC_VAR_EVAL) \ CBC_OPCODE (CBC_SET_VAR_FUNC, \ CBC_HAS_LITERAL_ARG | CBC_HAS_LITERAL_ARG2, \ 0, \ VM_OC_ASSIGN | VM_OC_GET_LITERAL | VM_OC_PUT_IDENT) \ CBC_OPCODE (CBC_SET_BYTECODE_PTR, CBC_NO_FLAG, 0, VM_OC_SET_BYTECODE_PTR) \ CBC_OPCODE (CBC_RETURN, CBC_NO_FLAG, -1, VM_OC_RETURN | VM_OC_GET_STACK) \ CBC_OPCODE (CBC_RETURN_FUNCTION_END, CBC_NO_FLAG, 0, VM_OC_RETURN_FUNCTION_END) \ CBC_OPCODE (CBC_RETURN_WITH_LITERAL, CBC_HAS_LITERAL_ARG, 0, VM_OC_RETURN | VM_OC_GET_LITERAL) \ CBC_OPCODE (CBC_SET_LITERAL_PROPERTY, \ CBC_HAS_LITERAL_ARG | CBC_HAS_LITERAL_ARG2, \ 0, \ VM_OC_SET_PROPERTY | VM_OC_NON_STATIC_FLAG | VM_OC_GET_LITERAL_LITERAL) \ CBC_OPCODE (CBC_COPY_TO_GLOBAL, \ CBC_HAS_LITERAL_ARG | CBC_HAS_LITERAL_ARG2, \ 0, \ VM_OC_COPY_TO_GLOBAL | VM_OC_GET_LITERAL) \ CBC_OPCODE (CBC_BREAKPOINT_ENABLED, CBC_NO_FLAG, 0, VM_OC_BREAKPOINT_ENABLED) \ CBC_OPCODE (CBC_BREAKPOINT_DISABLED, CBC_NO_FLAG, 0, VM_OC_BREAKPOINT_DISABLED) \ \ /* Unary opcodes. */ \ CBC_UNARY_OPERATION (CBC_PLUS, PLUS) \ CBC_UNARY_OPERATION (CBC_NEGATE, MINUS) \ CBC_UNARY_OPERATION (CBC_LOGICAL_NOT, NOT) \ CBC_UNARY_OPERATION (CBC_BIT_NOT, BIT_NOT) \ CBC_UNARY_OPERATION (CBC_VOID, VOID) \ CBC_OPCODE (CBC_TYPEOF, CBC_NO_FLAG, 0, VM_OC_TYPEOF | VM_OC_GET_STACK | VM_OC_PUT_STACK) \ CBC_OPCODE (CBC_TYPEOF_IDENT, CBC_HAS_LITERAL_ARG, 1, VM_OC_TYPEOF_IDENT | VM_OC_PUT_STACK) \ \ /* Binary opcodes. */ \ CBC_BINARY_OPERATION (CBC_BIT_OR, BIT_OR) \ CBC_BINARY_OPERATION (CBC_BIT_XOR, BIT_XOR) \ CBC_BINARY_OPERATION (CBC_BIT_AND, BIT_AND) \ CBC_BINARY_OPERATION (CBC_EQUAL, EQUAL) \ CBC_BINARY_OPERATION (CBC_NOT_EQUAL, NOT_EQUAL) \ CBC_BINARY_OPERATION (CBC_STRICT_EQUAL, STRICT_EQUAL) \ CBC_BINARY_OPERATION (CBC_STRICT_NOT_EQUAL, STRICT_NOT_EQUAL) \ CBC_BINARY_OPERATION (CBC_LESS, LESS) \ CBC_BINARY_OPERATION (CBC_GREATER, GREATER) \ CBC_BINARY_OPERATION (CBC_LESS_EQUAL, LESS_EQUAL) \ CBC_BINARY_OPERATION (CBC_GREATER_EQUAL, GREATER_EQUAL) \ CBC_BINARY_OPERATION (CBC_IN, IN) \ CBC_BINARY_OPERATION (CBC_INSTANCEOF, INSTANCEOF) \ CBC_BINARY_OPERATION (CBC_LEFT_SHIFT, LEFT_SHIFT) \ CBC_BINARY_OPERATION (CBC_RIGHT_SHIFT, RIGHT_SHIFT) \ CBC_BINARY_OPERATION (CBC_UNS_RIGHT_SHIFT, UNS_RIGHT_SHIFT) \ CBC_BINARY_OPERATION (CBC_ADD, ADD) \ CBC_BINARY_OPERATION (CBC_SUBTRACT, SUB) \ CBC_BINARY_OPERATION (CBC_MULTIPLY, MUL) \ CBC_BINARY_OPERATION (CBC_DIVIDE, DIV) \ CBC_BINARY_OPERATION (CBC_MODULO, MOD) \ CBC_BINARY_OPERATION (CBC_EXPONENTIATION, EXP) \ \ /* Unary lvalue opcodes. */ \ CBC_OPCODE (CBC_DELETE_PUSH_RESULT, CBC_NO_FLAG, -1, VM_OC_PROP_DELETE | VM_OC_GET_STACK_STACK | VM_OC_PUT_STACK) \ CBC_OPCODE (CBC_DELETE_IDENT_PUSH_RESULT, CBC_HAS_LITERAL_ARG, 1, VM_OC_DELETE | VM_OC_PUT_STACK) \ CBC_UNARY_LVALUE_OPERATION (CBC_PRE_INCR, PRE_INCR) \ CBC_UNARY_LVALUE_OPERATION (CBC_PRE_DECR, PRE_DECR) \ CBC_UNARY_LVALUE_OPERATION (CBC_POST_INCR, POST_INCR) \ CBC_UNARY_LVALUE_OPERATION (CBC_POST_DECR, POST_DECR) \ \ /* Call opcodes. */ \ CBC_OPCODE (CBC_CALL, CBC_HAS_POP_STACK_BYTE_ARG, -1, VM_OC_CALL) \ CBC_OPCODE (CBC_CALL_PUSH_RESULT, CBC_HAS_POP_STACK_BYTE_ARG, 0, VM_OC_CALL | VM_OC_PUT_STACK) \ CBC_OPCODE (CBC_CALL_BLOCK, CBC_HAS_POP_STACK_BYTE_ARG, -1, VM_OC_CALL | VM_OC_PUT_BLOCK) \ CBC_OPCODE (CBC_CALL_PROP, CBC_HAS_POP_STACK_BYTE_ARG, -3, VM_OC_CALL) \ CBC_OPCODE (CBC_CALL_PROP_PUSH_RESULT, CBC_HAS_POP_STACK_BYTE_ARG, -2, VM_OC_CALL | VM_OC_PUT_STACK) \ CBC_OPCODE (CBC_CALL_PROP_BLOCK, CBC_HAS_POP_STACK_BYTE_ARG, -3, VM_OC_CALL | VM_OC_PUT_BLOCK) \ CBC_OPCODE (CBC_CALL0, CBC_NO_FLAG, -1, VM_OC_CALL) \ CBC_OPCODE (CBC_CALL0_PUSH_RESULT, CBC_NO_FLAG, 0, VM_OC_CALL | VM_OC_PUT_STACK) \ CBC_OPCODE (CBC_CALL0_BLOCK, CBC_NO_FLAG, -1, VM_OC_CALL | VM_OC_PUT_BLOCK) \ CBC_OPCODE (CBC_CALL0_PROP, CBC_NO_FLAG, -3, VM_OC_CALL) \ CBC_OPCODE (CBC_CALL0_PROP_PUSH_RESULT, CBC_NO_FLAG, -2, VM_OC_CALL | VM_OC_PUT_STACK) \ CBC_OPCODE (CBC_CALL0_PROP_BLOCK, CBC_NO_FLAG, -3, VM_OC_CALL | VM_OC_PUT_BLOCK) \ CBC_OPCODE (CBC_CALL1, CBC_NO_FLAG, -2, VM_OC_CALL) \ CBC_OPCODE (CBC_CALL1_PUSH_RESULT, CBC_NO_FLAG, -1, VM_OC_CALL | VM_OC_PUT_STACK) \ CBC_OPCODE (CBC_CALL1_BLOCK, CBC_NO_FLAG, -2, VM_OC_CALL | VM_OC_PUT_BLOCK) \ CBC_OPCODE (CBC_CALL1_PROP, CBC_NO_FLAG, -4, VM_OC_CALL) \ CBC_OPCODE (CBC_CALL1_PROP_PUSH_RESULT, CBC_NO_FLAG, -3, VM_OC_CALL | VM_OC_PUT_STACK) \ CBC_OPCODE (CBC_CALL1_PROP_BLOCK, CBC_NO_FLAG, -4, VM_OC_CALL | VM_OC_PUT_BLOCK) \ CBC_OPCODE (CBC_CALL2, CBC_NO_FLAG, -3, VM_OC_CALL) \ CBC_OPCODE (CBC_CALL2_PUSH_RESULT, CBC_NO_FLAG, -2, VM_OC_CALL | VM_OC_PUT_STACK) \ CBC_OPCODE (CBC_CALL2_BLOCK, CBC_NO_FLAG, -3, VM_OC_CALL | VM_OC_PUT_BLOCK) \ CBC_OPCODE (CBC_CALL2_PROP, CBC_NO_FLAG, -4, VM_OC_CALL) \ CBC_OPCODE (CBC_CALL2_PROP_PUSH_RESULT, CBC_NO_FLAG, -3, VM_OC_CALL | VM_OC_PUT_STACK) \ CBC_OPCODE (CBC_CALL2_PROP_BLOCK, CBC_NO_FLAG, -4, VM_OC_CALL | VM_OC_PUT_BLOCK) \ \ /* Binary assignment opcodes. */ \ CBC_OPCODE (CBC_ASSIGN, CBC_NO_FLAG, -3, VM_OC_ASSIGN | VM_OC_GET_STACK | VM_OC_PUT_REFERENCE) \ CBC_OPCODE (CBC_ASSIGN_PUSH_RESULT, \ CBC_NO_FLAG, \ -2, \ VM_OC_ASSIGN | VM_OC_GET_STACK | VM_OC_PUT_REFERENCE | VM_OC_PUT_STACK) \ CBC_OPCODE (CBC_ASSIGN_BLOCK, \ CBC_NO_FLAG, \ -3, \ VM_OC_ASSIGN | VM_OC_GET_STACK | VM_OC_PUT_REFERENCE | VM_OC_PUT_BLOCK) \ CBC_OPCODE (CBC_ASSIGN_SET_IDENT, CBC_HAS_LITERAL_ARG, -1, VM_OC_ASSIGN | VM_OC_GET_STACK | VM_OC_PUT_IDENT) \ CBC_OPCODE (CBC_ASSIGN_SET_IDENT_PUSH_RESULT, \ CBC_HAS_LITERAL_ARG, \ 0, \ VM_OC_ASSIGN | VM_OC_GET_STACK | VM_OC_PUT_IDENT | VM_OC_PUT_STACK) \ CBC_OPCODE (CBC_ASSIGN_SET_IDENT_BLOCK, \ CBC_HAS_LITERAL_ARG, \ -1, \ VM_OC_ASSIGN | VM_OC_GET_STACK | VM_OC_PUT_IDENT | VM_OC_PUT_BLOCK) \ CBC_OPCODE (CBC_ASSIGN_LITERAL_SET_IDENT, \ CBC_HAS_LITERAL_ARG | CBC_HAS_LITERAL_ARG2, \ 0, \ VM_OC_ASSIGN | VM_OC_GET_LITERAL | VM_OC_PUT_IDENT) \ CBC_OPCODE (CBC_ASSIGN_LITERAL_SET_IDENT_PUSH_RESULT, \ CBC_HAS_LITERAL_ARG | CBC_HAS_LITERAL_ARG2, \ 1, \ VM_OC_ASSIGN | VM_OC_GET_LITERAL | VM_OC_PUT_IDENT | VM_OC_PUT_STACK) \ CBC_OPCODE (CBC_ASSIGN_LITERAL_SET_IDENT_BLOCK, \ CBC_HAS_LITERAL_ARG | CBC_HAS_LITERAL_ARG2, \ 0, \ VM_OC_ASSIGN | VM_OC_GET_LITERAL | VM_OC_PUT_IDENT | VM_OC_PUT_BLOCK) \ CBC_OPCODE (CBC_ASSIGN_PROP_LITERAL, \ CBC_HAS_LITERAL_ARG, \ -2, \ VM_OC_ASSIGN_PROP | VM_OC_GET_LITERAL | VM_OC_PUT_REFERENCE) \ CBC_OPCODE (CBC_ASSIGN_PROP_LITERAL_PUSH_RESULT, \ CBC_HAS_LITERAL_ARG, \ -1, \ VM_OC_ASSIGN_PROP | VM_OC_GET_LITERAL | VM_OC_PUT_REFERENCE | VM_OC_PUT_STACK) \ CBC_OPCODE (CBC_ASSIGN_PROP_LITERAL_BLOCK, \ CBC_HAS_LITERAL_ARG, \ -2, \ VM_OC_ASSIGN_PROP | VM_OC_GET_LITERAL | VM_OC_PUT_REFERENCE | VM_OC_PUT_BLOCK) \ CBC_OPCODE (CBC_ASSIGN_PROP_THIS_LITERAL, \ CBC_HAS_LITERAL_ARG, \ -1, \ VM_OC_ASSIGN_PROP_THIS | VM_OC_GET_LITERAL | VM_OC_PUT_REFERENCE) \ CBC_OPCODE (CBC_ASSIGN_PROP_THIS_LITERAL_PUSH_RESULT, \ CBC_HAS_LITERAL_ARG, \ 0, \ VM_OC_ASSIGN_PROP_THIS | VM_OC_GET_LITERAL | VM_OC_PUT_REFERENCE | VM_OC_PUT_STACK) \ CBC_OPCODE (CBC_ASSIGN_PROP_THIS_LITERAL_BLOCK, \ CBC_HAS_LITERAL_ARG, \ -1, \ VM_OC_ASSIGN_PROP_THIS | VM_OC_GET_LITERAL | VM_OC_PUT_REFERENCE | VM_OC_PUT_BLOCK) \ CBC_OPCODE (CBC_MOV_IDENT, CBC_HAS_LITERAL_ARG, -1, VM_OC_MOV_IDENT | VM_OC_GET_STACK | VM_OC_PUT_IDENT) \ CBC_OPCODE (CBC_ASSIGN_LET_CONST, CBC_HAS_LITERAL_ARG, -1, VM_OC_ASSIGN_LET_CONST | VM_OC_GET_STACK) \ CBC_OPCODE (CBC_ASSIGN_LET_CONST_LITERAL, \ CBC_HAS_LITERAL_ARG | CBC_HAS_LITERAL_ARG2, \ 0, \ VM_OC_ASSIGN_LET_CONST | VM_OC_GET_LITERAL) \ \ /* Last opcode (not a real opcode). */ \ CBC_OPCODE (CBC_END, CBC_NO_FLAG, 0, VM_OC_NONE) /* All EXT branches are statement block end * marks, so they are always forward branches. */ #define CBC_EXT_OPCODE_LIST \ /* Branch opcodes first. Some other opcodes are mixed. */ \ CBC_OPCODE (CBC_EXT_NOP, CBC_NO_FLAG, 0, VM_OC_NONE) \ CBC_FORWARD_BRANCH (CBC_EXT_WITH_CREATE_CONTEXT, -1 + PARSER_WITH_CONTEXT_STACK_ALLOCATION, VM_OC_WITH) \ CBC_OPCODE (CBC_EXT_FOR_IN_GET_NEXT, CBC_NO_FLAG, 1, VM_OC_FOR_IN_GET_NEXT | VM_OC_PUT_STACK) \ CBC_FORWARD_BRANCH (CBC_EXT_FOR_IN_INIT, -1 + PARSER_FOR_IN_CONTEXT_STACK_ALLOCATION, VM_OC_FOR_IN_INIT) \ CBC_OPCODE (CBC_EXT_SET_GETTER, \ CBC_HAS_LITERAL_ARG | CBC_HAS_LITERAL_ARG2, \ 0, \ VM_OC_SET_GETTER | VM_OC_NON_STATIC_FLAG | VM_OC_GET_LITERAL_LITERAL) \ CBC_BACKWARD_BRANCH (CBC_EXT_BRANCH_IF_FOR_IN_HAS_NEXT, 0, VM_OC_FOR_IN_HAS_NEXT) \ CBC_OPCODE (CBC_EXT_FOR_OF_GET_NEXT, CBC_NO_FLAG, 1, VM_OC_FOR_OF_GET_NEXT | VM_OC_PUT_STACK) \ CBC_FORWARD_BRANCH (CBC_EXT_FOR_OF_INIT, -1 + PARSER_FOR_OF_CONTEXT_STACK_ALLOCATION, VM_OC_FOR_OF_INIT) \ CBC_OPCODE (CBC_EXT_PUSH_NAMED_FUNC_EXPRESSION, \ CBC_HAS_LITERAL_ARG | CBC_HAS_LITERAL_ARG2, \ 1, \ VM_OC_PUSH_NAMED_FUNC_EXPR | VM_OC_GET_LITERAL_LITERAL) \ CBC_BACKWARD_BRANCH (CBC_EXT_BRANCH_IF_FOR_OF_HAS_NEXT, 0, VM_OC_FOR_OF_HAS_NEXT) \ CBC_OPCODE (CBC_EXT_CLONE_CONTEXT, CBC_NO_FLAG, 0, VM_OC_CLONE_CONTEXT) \ CBC_FORWARD_BRANCH (CBC_EXT_FOR_AWAIT_OF_INIT, \ -1 + PARSER_FOR_AWAIT_OF_CONTEXT_STACK_ALLOCATION, \ VM_OC_FOR_AWAIT_OF_INIT) \ CBC_OPCODE (CBC_EXT_CLONE_FULL_CONTEXT, CBC_NO_FLAG, 0, VM_OC_CLONE_CONTEXT) \ CBC_BACKWARD_BRANCH (CBC_EXT_BRANCH_IF_FOR_AWAIT_OF_HAS_NEXT, 0, VM_OC_FOR_AWAIT_OF_HAS_NEXT) \ CBC_OPCODE (CBC_EXT_SET_SETTER, \ CBC_HAS_LITERAL_ARG | CBC_HAS_LITERAL_ARG2, \ 0, \ VM_OC_SET_SETTER | VM_OC_NON_STATIC_FLAG | VM_OC_GET_LITERAL_LITERAL) \ CBC_FORWARD_BRANCH (CBC_EXT_TRY_CREATE_CONTEXT, PARSER_TRY_CONTEXT_STACK_ALLOCATION, VM_OC_TRY) \ CBC_OPCODE (CBC_EXT_TRY_CREATE_ENV, CBC_NO_FLAG, 0, VM_OC_BLOCK_CREATE_CONTEXT) \ CBC_FORWARD_BRANCH (CBC_EXT_CATCH, 1, VM_OC_CATCH) \ CBC_OPCODE (CBC_EXT_RESOLVE_BASE, CBC_NO_FLAG, 0, VM_OC_RESOLVE_BASE_FOR_CALL) \ CBC_FORWARD_BRANCH (CBC_EXT_FINALLY, PARSER_FINALLY_CONTEXT_EXTRA_STACK_ALLOCATION, VM_OC_FINALLY) \ CBC_OPCODE (CBC_EXT_INITIALIZER_PUSH_PROP, CBC_NO_FLAG, 0, VM_OC_INITIALIZER_PUSH_PROP) \ CBC_FORWARD_BRANCH (CBC_EXT_DEFAULT_INITIALIZER, -1, VM_OC_DEFAULT_INITIALIZER) \ CBC_OPCODE (CBC_EXT_ERROR, CBC_NO_FLAG, 0, VM_OC_ERROR) \ CBC_FORWARD_BRANCH (CBC_EXT_BRANCH_IF_NULLISH, -1, VM_OC_BRANCH_IF_NULLISH) \ \ /* Basic opcodes. */ \ CBC_OPCODE (CBC_EXT_POP_REFERENCE, CBC_NO_FLAG, -2, VM_OC_POP_REFERENCE) \ CBC_OPCODE (CBC_EXT_CREATE_ARGUMENTS, CBC_HAS_LITERAL_ARG, 0, VM_OC_CREATE_ARGUMENTS) \ CBC_OPCODE (CBC_EXT_CREATE_VAR_EVAL, CBC_HAS_LITERAL_ARG, 0, VM_OC_EXT_VAR_EVAL) \ CBC_OPCODE (CBC_EXT_CREATE_VAR_FUNC_EVAL, CBC_HAS_LITERAL_ARG | CBC_HAS_LITERAL_ARG2, 0, VM_OC_EXT_VAR_EVAL) \ CBC_OPCODE (CBC_EXT_COPY_FROM_ARG, CBC_HAS_LITERAL_ARG, 0, VM_OC_COPY_FROM_ARG) \ CBC_OPCODE (CBC_EXT_PUSH_REST_OBJECT, CBC_NO_FLAG, 1, VM_OC_PUSH_REST_OBJECT) \ CBC_OPCODE (CBC_EXT_MODULE_IMPORT, CBC_NO_FLAG, 0, VM_OC_MODULE_IMPORT) \ CBC_OPCODE (CBC_EXT_MODULE_IMPORT_META, CBC_NO_FLAG, 1, VM_OC_MODULE_IMPORT_META) \ CBC_OPCODE (CBC_EXT_STRING_CONCAT, CBC_NO_FLAG, -1, VM_OC_STRING_CONCAT | VM_OC_GET_STACK_STACK | VM_OC_PUT_STACK) \ CBC_OPCODE (CBC_EXT_STRING_CONCAT_RIGHT_LITERAL, \ CBC_HAS_LITERAL_ARG, \ 0, \ VM_OC_STRING_CONCAT | VM_OC_GET_STACK_LITERAL | VM_OC_PUT_STACK) \ CBC_OPCODE (CBC_EXT_STRING_CONCAT_TWO_LITERALS, \ CBC_HAS_LITERAL_ARG | CBC_HAS_LITERAL_ARG2, \ 1, \ VM_OC_STRING_CONCAT | VM_OC_GET_LITERAL_LITERAL | VM_OC_PUT_STACK) \ CBC_OPCODE (CBC_EXT_GET_TAGGED_TEMPLATE_LITERAL, CBC_HAS_BYTE_ARG, 1, VM_OC_GET_TEMPLATE_OBJECT | VM_OC_PUT_STACK) \ CBC_OPCODE (CBC_EXT_THROW_REFERENCE_ERROR, CBC_NO_FLAG, 1, VM_OC_THROW_REFERENCE_ERROR) \ CBC_OPCODE (CBC_EXT_THROW_ASSIGN_CONST_ERROR, CBC_NO_FLAG, 0, VM_OC_THROW_CONST_ERROR) \ CBC_OPCODE (CBC_EXT_REQUIRE_OBJECT_COERCIBLE, CBC_NO_FLAG, 0, VM_OC_REQUIRE_OBJECT_COERCIBLE) \ CBC_OPCODE (CBC_EXT_COPY_DATA_PROPERTIES, CBC_NO_FLAG, -1, VM_OC_COPY_DATA_PROPERTIES) \ CBC_OPCODE (CBC_EXT_SET_FUNCTION_NAME, CBC_HAS_LITERAL_ARG, 0, VM_OC_SET_FUNCTION_NAME | VM_OC_GET_LITERAL) \ CBC_OPCODE (CBC_EXT_SET_CLASS_NAME, CBC_HAS_LITERAL_ARG, 0, VM_OC_SET_FUNCTION_NAME) \ CBC_OPCODE (CBC_EXT_SET_COMPUTED_FUNCTION_NAME, CBC_NO_FLAG, 0, VM_OC_SET_FUNCTION_NAME) \ CBC_OPCODE (CBC_EXT_SET_COMPUTED_GETTER_NAME, CBC_NO_FLAG, 0, VM_OC_SET_FUNCTION_NAME) \ CBC_OPCODE (CBC_EXT_SET_COMPUTED_SETTER_NAME, CBC_NO_FLAG, 0, VM_OC_SET_FUNCTION_NAME) \ \ /* Computed / class property related opcodes. */ \ CBC_OPCODE (CBC_EXT_SET_COMPUTED_PROPERTY, \ CBC_NO_FLAG, \ -2, \ VM_OC_SET_COMPUTED_PROPERTY | VM_OC_NON_STATIC_FLAG | VM_OC_GET_STACK_STACK) \ CBC_OPCODE (CBC_EXT_SET_COMPUTED_PROPERTY_LITERAL, \ CBC_HAS_LITERAL_ARG, \ -1, \ VM_OC_SET_COMPUTED_PROPERTY | VM_OC_NON_STATIC_FLAG | VM_OC_GET_STACK_LITERAL) \ CBC_OPCODE (CBC_EXT_SET_COMPUTED_GETTER, \ CBC_NO_FLAG, \ -2, \ VM_OC_SET_GETTER | VM_OC_NON_STATIC_FLAG | VM_OC_GET_STACK_STACK) \ CBC_OPCODE (CBC_EXT_SET_COMPUTED_SETTER, \ CBC_NO_FLAG, \ -2, \ VM_OC_SET_SETTER | VM_OC_NON_STATIC_FLAG | VM_OC_GET_STACK_STACK) \ CBC_OPCODE (CBC_EXT_SET_STATIC_PROPERTY, CBC_HAS_LITERAL_ARG, -1, VM_OC_SET_PROPERTY | VM_OC_GET_STACK_LITERAL) \ CBC_OPCODE (CBC_EXT_SET_STATIC_PROPERTY_LITERAL, \ CBC_HAS_LITERAL_ARG | CBC_HAS_LITERAL_ARG2, \ 0, \ VM_OC_SET_PROPERTY | VM_OC_GET_LITERAL_LITERAL) \ CBC_OPCODE (CBC_EXT_SET_STATIC_COMPUTED_PROPERTY, \ CBC_NO_FLAG, \ -2, \ VM_OC_SET_COMPUTED_PROPERTY | VM_OC_GET_STACK_STACK) \ CBC_OPCODE (CBC_EXT_SET_STATIC_GETTER, \ CBC_HAS_LITERAL_ARG | CBC_HAS_LITERAL_ARG2, \ 0, \ VM_OC_SET_GETTER | VM_OC_GET_LITERAL_LITERAL) \ CBC_OPCODE (CBC_EXT_SET_STATIC_SETTER, \ CBC_HAS_LITERAL_ARG | CBC_HAS_LITERAL_ARG2, \ 0, \ VM_OC_SET_SETTER | VM_OC_GET_LITERAL_LITERAL) \ CBC_OPCODE (CBC_EXT_SET_STATIC_COMPUTED_GETTER, CBC_NO_FLAG, -2, VM_OC_SET_GETTER | VM_OC_GET_STACK_STACK) \ CBC_OPCODE (CBC_EXT_SET_STATIC_COMPUTED_SETTER, CBC_NO_FLAG, -2, VM_OC_SET_SETTER | VM_OC_GET_STACK_STACK) \ CBC_OPCODE (CBC_EXT_SET__PROTO__, CBC_NO_FLAG, -1, VM_OC_SET__PROTO__ | VM_OC_GET_STACK) \ CBC_OPCODE (CBC_EXT_PUSH_STATIC_FIELD_FUNC, \ CBC_HAS_LITERAL_ARG, \ 1, \ VM_OC_PUSH_STATIC_FIELD_FUNC | VM_OC_GET_LITERAL) \ CBC_OPCODE (CBC_EXT_PUSH_STATIC_COMPUTED_FIELD_FUNC, \ CBC_HAS_LITERAL_ARG, \ 0, \ VM_OC_PUSH_STATIC_FIELD_FUNC | VM_OC_GET_LITERAL) \ CBC_OPCODE (CBC_EXT_ADD_COMPUTED_FIELD, CBC_NO_FLAG, -1, VM_OC_ADD_COMPUTED_FIELD | VM_OC_GET_STACK) \ CBC_OPCODE (CBC_EXT_ADD_STATIC_COMPUTED_FIELD, CBC_NO_FLAG, -1, VM_OC_ADD_COMPUTED_FIELD | VM_OC_GET_STACK) \ CBC_OPCODE (CBC_EXT_CLASS_CALL_STATIC_BLOCK, \ CBC_HAS_LITERAL_ARG, \ 0, \ VM_OC_CLASS_CALL_STATIC_BLOCK | VM_OC_GET_LITERAL) \ /* Class private property related opcodes */ \ CBC_OPCODE (CBC_EXT_PUSH_PRIVATE_PROP_LITERAL_REFERENCE, \ CBC_HAS_LITERAL_ARG, \ 2, \ VM_OC_PRIVATE_PROP_REFERENCE | VM_OC_GET_LITERAL | VM_OC_PUT_STACK) \ CBC_OPCODE (CBC_EXT_PUSH_PRIVATE_PROP_LITERAL, \ CBC_HAS_LITERAL_ARG, \ 0, \ VM_OC_PRIVATE_PROP_GET | VM_OC_GET_STACK_LITERAL | VM_OC_PUT_STACK) \ CBC_OPCODE (CBC_EXT_PUSH_PRIVATE_PROP_LITERAL_IN, \ CBC_HAS_LITERAL_ARG, \ 0, \ VM_OC_PRIVATE_IN | VM_OC_GET_STACK_LITERAL | VM_OC_PUT_STACK) \ CBC_OPCODE (CBC_EXT_PRIVATE_FIELD_ADD, CBC_HAS_LITERAL_ARG, -1, VM_OC_PRIVATE_FIELD_ADD | VM_OC_GET_STACK_LITERAL) \ /* These 8 opcodes must be in this order */ \ CBC_OPCODE (CBC_EXT_COLLECT_PRIVATE_FIELD, \ CBC_HAS_LITERAL_ARG, \ 0, \ VM_OC_COLLECT_PRIVATE_PROPERTY | VM_OC_GET_LITERAL) \ CBC_OPCODE (CBC_EXT_COLLECT_PRIVATE_METHOD, \ CBC_HAS_LITERAL_ARG | CBC_HAS_LITERAL_ARG2, \ 0, \ VM_OC_COLLECT_PRIVATE_PROPERTY | VM_OC_GET_LITERAL_LITERAL) \ CBC_OPCODE (CBC_EXT_COLLECT_PRIVATE_GETTER, \ CBC_HAS_LITERAL_ARG | CBC_HAS_LITERAL_ARG2, \ 0, \ VM_OC_COLLECT_PRIVATE_PROPERTY | VM_OC_GET_LITERAL_LITERAL) \ CBC_OPCODE (CBC_EXT_COLLECT_PRIVATE_SETTER, \ CBC_HAS_LITERAL_ARG | CBC_HAS_LITERAL_ARG2, \ 0, \ VM_OC_COLLECT_PRIVATE_PROPERTY | VM_OC_GET_LITERAL_LITERAL) \ CBC_OPCODE (CBC_EXT_COLLECT_PRIVATE_STATIC_FIELD, \ CBC_HAS_LITERAL_ARG, \ 0, \ VM_OC_COLLECT_PRIVATE_PROPERTY | VM_OC_GET_LITERAL) \ CBC_OPCODE (CBC_EXT_COLLECT_PRIVATE_STATIC_METHOD, \ CBC_HAS_LITERAL_ARG | CBC_HAS_LITERAL_ARG2, \ 0, \ VM_OC_COLLECT_PRIVATE_PROPERTY | VM_OC_GET_LITERAL_LITERAL) \ CBC_OPCODE (CBC_EXT_COLLECT_PRIVATE_STATIC_GETTER, \ CBC_HAS_LITERAL_ARG | CBC_HAS_LITERAL_ARG2, \ 0, \ VM_OC_COLLECT_PRIVATE_PROPERTY | VM_OC_GET_LITERAL_LITERAL) \ CBC_OPCODE (CBC_EXT_COLLECT_PRIVATE_STATIC_SETTER, \ CBC_HAS_LITERAL_ARG | CBC_HAS_LITERAL_ARG2, \ 0, \ VM_OC_COLLECT_PRIVATE_PROPERTY | VM_OC_GET_LITERAL_LITERAL) \ /* Class related opcodes. */ \ CBC_OPCODE (CBC_EXT_PUSH_NAMED_CLASS_ENV, CBC_HAS_LITERAL_ARG, 1, VM_OC_PUSH_CLASS_ENVIRONMENT) \ CBC_OPCODE (CBC_EXT_DEFINE_FIELD, CBC_HAS_LITERAL_ARG, -1, VM_OC_DEFINE_FIELD | VM_OC_GET_STACK_LITERAL) \ CBC_OPCODE (CBC_EXT_PUSH_IMPLICIT_CONSTRUCTOR, CBC_NO_FLAG, 1, VM_OC_PUSH_IMPLICIT_CTOR | VM_OC_PUT_STACK) \ CBC_OPCODE (CBC_EXT_PUSH_IMPLICIT_CONSTRUCTOR_HERITAGE, CBC_NO_FLAG, 1, VM_OC_PUSH_IMPLICIT_CTOR | VM_OC_PUT_STACK) \ CBC_OPCODE (CBC_EXT_INIT_CLASS, CBC_NO_FLAG, 0, VM_OC_INIT_CLASS | VM_OC_PUT_STACK) \ CBC_OPCODE (CBC_EXT_FINALIZE_NAMED_CLASS, CBC_HAS_LITERAL_ARG, -2, VM_OC_FINALIZE_CLASS) \ CBC_OPCODE (CBC_EXT_FINALIZE_ANONYMOUS_CLASS, CBC_NO_FLAG, -2, VM_OC_FINALIZE_CLASS) \ CBC_OPCODE (CBC_EXT_SET_FIELD_INIT, CBC_HAS_LITERAL_ARG, 0, VM_OC_SET_FIELD_INIT | VM_OC_GET_LITERAL) \ CBC_OPCODE (CBC_EXT_RUN_FIELD_INIT, CBC_NO_FLAG, 0, VM_OC_RUN_FIELD_INIT) \ CBC_OPCODE (CBC_EXT_RUN_STATIC_FIELD_INIT, CBC_NO_FLAG, -1, VM_OC_RUN_STATIC_FIELD_INIT) \ CBC_OPCODE (CBC_EXT_SET_NEXT_COMPUTED_FIELD_ANONYMOUS_FUNC, \ CBC_NO_FLAG, \ -1, \ VM_OC_SET_NEXT_COMPUTED_FIELD | VM_OC_PUT_REFERENCE) \ CBC_OPCODE (CBC_EXT_SET_NEXT_COMPUTED_FIELD, CBC_NO_FLAG, -1, VM_OC_SET_NEXT_COMPUTED_FIELD | VM_OC_PUT_REFERENCE) \ CBC_OPCODE (CBC_EXT_PUSH_SUPER, CBC_NO_FLAG, 1, VM_OC_NONE) \ CBC_OPCODE (CBC_EXT_PUSH_SUPER_CONSTRUCTOR, CBC_NO_FLAG, 1, VM_OC_PUSH_SUPER_CONSTRUCTOR) \ CBC_OPCODE (CBC_EXT_PUSH_SUPER_PROP, CBC_NO_FLAG, 0, VM_OC_SUPER_REFERENCE | VM_OC_GET_STACK) \ CBC_OPCODE (CBC_EXT_SUPER_PROP_REFERENCE, CBC_NO_FLAG, 2, VM_OC_SUPER_REFERENCE | VM_OC_GET_STACK) \ CBC_OPCODE (CBC_EXT_PUSH_SUPER_PROP_LITERAL, CBC_HAS_LITERAL_ARG, 1, VM_OC_SUPER_REFERENCE | VM_OC_GET_LITERAL) \ CBC_OPCODE (CBC_EXT_SUPER_PROP_LITERAL_REFERENCE, CBC_HAS_LITERAL_ARG, 3, VM_OC_SUPER_REFERENCE | VM_OC_GET_LITERAL) \ CBC_OPCODE (CBC_EXT_SUPER_PROP_ASSIGNMENT_REFERENCE, CBC_NO_FLAG, 1, VM_OC_SUPER_REFERENCE | VM_OC_GET_STACK) \ CBC_OPCODE (CBC_EXT_SUPER_PROP_LITERAL_ASSIGNMENT_REFERENCE, \ CBC_HAS_LITERAL_ARG, \ 2, \ VM_OC_SUPER_REFERENCE | VM_OC_GET_LITERAL) \ CBC_OPCODE (CBC_EXT_OBJECT_LITERAL_SET_HOME_OBJECT, CBC_NO_FLAG, 0, VM_OC_SET_HOME_OBJECT) \ CBC_OPCODE (CBC_EXT_OBJECT_LITERAL_SET_HOME_OBJECT_COMPUTED, CBC_NO_FLAG, 0, VM_OC_SET_HOME_OBJECT) \ CBC_OPCODE (CBC_EXT_PUSH_OBJECT_SUPER_ENVIRONMENT, CBC_NO_FLAG, 1, VM_OC_OBJECT_LITERAL_HOME_ENV) \ CBC_OPCODE (CBC_EXT_POP_OBJECT_SUPER_ENVIRONMENT, CBC_NO_FLAG, -1, VM_OC_OBJECT_LITERAL_HOME_ENV) \ CBC_OPCODE (CBC_EXT_RESOLVE_LEXICAL_THIS, CBC_NO_FLAG, 1, VM_OC_RESOLVE_LEXICAL_THIS | VM_OC_PUT_STACK) \ CBC_OPCODE (CBC_EXT_LOCAL_EVAL, CBC_HAS_BYTE_ARG, 0, VM_OC_LOCAL_EVAL) \ CBC_OPCODE (CBC_EXT_ASSIGN_SUPER, CBC_NO_FLAG, -3, VM_OC_ASSIGN_SUPER) \ CBC_OPCODE (CBC_EXT_ASSIGN_SUPER_PUSH_RESULT, CBC_NO_FLAG, -2, VM_OC_ASSIGN_SUPER | VM_OC_PUT_STACK) \ CBC_OPCODE (CBC_EXT_ASSIGN_SUPER_BLOCK, CBC_NO_FLAG, -3, VM_OC_ASSIGN_SUPER | VM_OC_PUT_BLOCK) \ CBC_OPCODE (CBC_EXT_ASSIGN_PRIVATE, CBC_NO_FLAG, -3, VM_OC_ASSIGN_PRIVATE) \ CBC_OPCODE (CBC_EXT_ASSIGN_PRIVATE_PUSH_RESULT, CBC_NO_FLAG, -2, VM_OC_ASSIGN_PRIVATE | VM_OC_PUT_STACK) \ CBC_OPCODE (CBC_EXT_ASSIGN_PRIVATE_BLOCK, CBC_NO_FLAG, -3, VM_OC_ASSIGN_PRIVATE | VM_OC_PUT_BLOCK) \ CBC_OPCODE (CBC_EXT_SUPER_CALL, CBC_HAS_POP_STACK_BYTE_ARG, -1, VM_OC_SUPER_CALL) \ CBC_OPCODE (CBC_EXT_SUPER_CALL_PUSH_RESULT, CBC_HAS_POP_STACK_BYTE_ARG, 0, VM_OC_SUPER_CALL | VM_OC_PUT_STACK) \ CBC_OPCODE (CBC_EXT_SUPER_CALL_BLOCK, CBC_HAS_POP_STACK_BYTE_ARG, -1, VM_OC_SUPER_CALL | VM_OC_PUT_BLOCK) \ CBC_OPCODE (CBC_EXT_SPREAD_SUPER_CALL, CBC_HAS_POP_STACK_BYTE_ARG, -1, VM_OC_SUPER_CALL) \ CBC_OPCODE (CBC_EXT_SPREAD_SUPER_CALL_PUSH_RESULT, \ CBC_HAS_POP_STACK_BYTE_ARG, \ 0, \ VM_OC_SUPER_CALL | VM_OC_PUT_STACK) \ CBC_OPCODE (CBC_EXT_SPREAD_SUPER_CALL_BLOCK, CBC_HAS_POP_STACK_BYTE_ARG, -1, VM_OC_SUPER_CALL | VM_OC_PUT_BLOCK) \ \ /* Spread / rest operation related opcodes. */ \ CBC_OPCODE (CBC_EXT_SPREAD_CALL, CBC_HAS_POP_STACK_BYTE_ARG, -1, VM_OC_SPREAD_ARGUMENTS) \ CBC_OPCODE (CBC_EXT_SPREAD_CALL_PUSH_RESULT, \ CBC_HAS_POP_STACK_BYTE_ARG, \ 0, \ VM_OC_SPREAD_ARGUMENTS | VM_OC_PUT_STACK) \ CBC_OPCODE (CBC_EXT_SPREAD_CALL_BLOCK, CBC_HAS_POP_STACK_BYTE_ARG, -1, VM_OC_SPREAD_ARGUMENTS | VM_OC_PUT_BLOCK) \ CBC_OPCODE (CBC_EXT_SPREAD_CALL_PROP, CBC_HAS_POP_STACK_BYTE_ARG, -3, VM_OC_SPREAD_ARGUMENTS) \ CBC_OPCODE (CBC_EXT_SPREAD_CALL_PROP_PUSH_RESULT, \ CBC_HAS_POP_STACK_BYTE_ARG, \ -2, \ VM_OC_SPREAD_ARGUMENTS | VM_OC_PUT_STACK) \ CBC_OPCODE (CBC_EXT_SPREAD_CALL_PROP_BLOCK, \ CBC_HAS_POP_STACK_BYTE_ARG, \ -3, \ VM_OC_SPREAD_ARGUMENTS | VM_OC_PUT_BLOCK) \ CBC_OPCODE (CBC_EXT_PUSH_SPREAD_ELEMENT, CBC_NO_FLAG, 1, VM_OC_PUSH_SPREAD_ELEMENT) \ CBC_OPCODE (CBC_EXT_SPREAD_ARRAY_APPEND, CBC_HAS_POP_STACK_BYTE_ARG, 0, VM_OC_APPEND_ARRAY) \ CBC_OPCODE (CBC_EXT_REST_INITIALIZER, CBC_NO_FLAG, 1, VM_OC_REST_INITIALIZER) \ CBC_OPCODE (CBC_EXT_INITIALIZER_PUSH_PROP_LITERAL, \ CBC_HAS_LITERAL_ARG, \ 1, \ VM_OC_INITIALIZER_PUSH_PROP | VM_OC_GET_LITERAL) \ CBC_OPCODE (CBC_EXT_SPREAD_NEW, CBC_HAS_POP_STACK_BYTE_ARG, 0, VM_OC_SPREAD_ARGUMENTS | VM_OC_PUT_STACK) \ \ /* Iterator related opcodes. */ \ CBC_OPCODE (CBC_EXT_ITERATOR_CONTEXT_CREATE, \ CBC_NO_FLAG, \ PARSER_ITERATOR_CONTEXT_STACK_ALLOCATION, \ VM_OC_ITERATOR_CONTEXT_CREATE) \ CBC_OPCODE (CBC_EXT_ITERATOR_CONTEXT_END, \ CBC_NO_FLAG, \ -PARSER_ITERATOR_CONTEXT_STACK_ALLOCATION, \ VM_OC_ITERATOR_CONTEXT_END) \ CBC_OPCODE (CBC_EXT_ITERATOR_STEP, CBC_NO_FLAG, 1, VM_OC_ITERATOR_STEP) \ \ /* Object initializer related opcodes. */ \ CBC_OPCODE (CBC_EXT_OBJ_INIT_CONTEXT_CREATE, \ CBC_NO_FLAG, \ PARSER_OBJ_INIT_CONTEXT_STACK_ALLOCATION, \ VM_OC_OBJ_INIT_CONTEXT_CREATE) \ CBC_OPCODE (CBC_EXT_OBJ_INIT_REST_CONTEXT_CREATE, \ CBC_NO_FLAG, \ PARSER_OBJ_INIT_REST_CONTEXT_STACK_ALLOCATION, \ VM_OC_OBJ_INIT_CONTEXT_CREATE) \ CBC_OPCODE (CBC_EXT_OBJ_INIT_PUSH_REST, CBC_NO_FLAG, 1, VM_OC_OBJ_INIT_PUSH_REST) \ CBC_OPCODE (CBC_EXT_OBJ_INIT_CONTEXT_END, \ CBC_NO_FLAG, \ -PARSER_OBJ_INIT_CONTEXT_STACK_ALLOCATION, \ VM_OC_OBJ_INIT_CONTEXT_END) \ CBC_OPCODE (CBC_EXT_INITIALIZER_PUSH_NAME, CBC_NO_FLAG, 0, VM_OC_INITIALIZER_PUSH_NAME | VM_OC_GET_STACK) \ CBC_OPCODE (CBC_EXT_INITIALIZER_PUSH_NAME_LITERAL, \ CBC_HAS_LITERAL_ARG, \ 1, \ VM_OC_INITIALIZER_PUSH_NAME | VM_OC_GET_LITERAL) \ \ /* Executable object related opcodes. */ \ CBC_OPCODE (CBC_EXT_CREATE_GENERATOR, CBC_NO_FLAG, 1, VM_OC_CREATE_GENERATOR) \ CBC_OPCODE (CBC_EXT_YIELD, CBC_NO_FLAG, 0, VM_OC_YIELD) \ CBC_OPCODE (CBC_EXT_YIELD_ITERATOR, CBC_NO_FLAG, 0, VM_OC_YIELD) \ CBC_OPCODE (CBC_EXT_ASYNC_YIELD, CBC_NO_FLAG, 0, VM_OC_ASYNC_YIELD) \ CBC_OPCODE (CBC_EXT_ASYNC_YIELD_ITERATOR, CBC_NO_FLAG, 0, VM_OC_ASYNC_YIELD_ITERATOR) \ CBC_OPCODE (CBC_EXT_AWAIT, CBC_NO_FLAG, 0, VM_OC_AWAIT) \ CBC_OPCODE (CBC_EXT_GENERATOR_AWAIT, CBC_NO_FLAG, 0, VM_OC_GENERATOR_AWAIT) \ CBC_OPCODE (CBC_EXT_ASYNC_EXIT, CBC_NO_FLAG, 0, VM_OC_ASYNC_EXIT) \ CBC_OPCODE (CBC_EXT_RETURN, CBC_NO_FLAG, -1, VM_OC_EXT_RETURN | VM_OC_GET_STACK) \ CBC_OPCODE (CBC_EXT_RETURN_UNDEFINED, CBC_NO_FLAG, 0, VM_OC_EXT_RETURN) \ CBC_OPCODE (CBC_EXT_PUSH_NEW_TARGET, CBC_NO_FLAG, 1, VM_OC_PUSH_NEW_TARGET | VM_OC_PUT_STACK) \ \ /* Last opcode (not a real opcode). */ \ CBC_OPCODE (CBC_EXT_END, CBC_NO_FLAG, 0, VM_OC_NONE) #define CBC_MAXIMUM_BYTE_VALUE 255 #define CBC_MAXIMUM_SMALL_VALUE 510 #define CBC_MAXIMUM_FULL_VALUE 32767 #define CBC_PUSH_NUMBER_BYTE_RANGE_END 256 #define CBC_HIGHEST_BIT_MASK 0x80 #define CBC_LOWER_SEVEN_BIT_MASK 0x7f /** * Literal encoding limit when full literal encoding mode is enabled */ #define CBC_FULL_LITERAL_ENCODING_LIMIT 128 /** * Literal encoding delta when full literal encoding mode is enabled */ #define CBC_FULL_LITERAL_ENCODING_DELTA 0x8000 /** * Literal encoding limit when full literal encoding mode is disabled */ #define CBC_SMALL_LITERAL_ENCODING_LIMIT 255 /** * Literal encoding delta when full literal encoding mode is disabled */ #define CBC_SMALL_LITERAL_ENCODING_DELTA 0xfe01 /** * Literal indicies belong to one of the following groups: * * 0 <= index < argument_end : arguments * argument_end <= index < register_end : registers * register_end <= index < ident_end : identifiers * ident_end <= index < const_literal_end : constant literals * const_literal_end <= index < literal_end : template literals */ /** * Compiled byte code arguments. */ typedef struct { ecma_compiled_code_t header; /**< compiled code header */ uint8_t stack_limit; /**< maximum number of values stored on the stack */ uint8_t argument_end; /**< number of arguments expected by the function */ ecma_value_t script_value; /**< script value */ uint8_t register_end; /**< end position of the register group */ uint8_t ident_end; /**< end position of the identifier group */ uint8_t const_literal_end; /**< end position of the const literal group */ uint8_t literal_end; /**< end position of the literal group */ } cbc_uint8_arguments_t; /** * Compiled byte code arguments. */ typedef struct { ecma_compiled_code_t header; /**< compiled code header */ uint16_t stack_limit; /**< maximum number of values stored on the stack */ ecma_value_t script_value; /**< script value */ uint16_t argument_end; /**< number of arguments expected by the function */ uint16_t register_end; /**< end position of the register group */ uint16_t ident_end; /**< end position of the identifier group */ uint16_t const_literal_end; /**< end position of the const literal group */ uint16_t literal_end; /**< end position of the literal group */ uint16_t padding; /**< an unused value */ } cbc_uint16_arguments_t; /** * Compact byte code status flags. */ typedef enum { CBC_CODE_FLAGS_FULL_LITERAL_ENCODING = (1u << 0), /**< full literal encoding mode is enabled */ CBC_CODE_FLAGS_UINT16_ARGUMENTS = (1u << 1), /**< compiled code data is cbc_uint16_arguments_t */ CBC_CODE_FLAGS_STRICT_MODE = (1u << 2), /**< strict mode is enabled */ CBC_CODE_FLAGS_MAPPED_ARGUMENTS_NEEDED = (1u << 3), /**< mapped arguments object must be constructed */ CBC_CODE_FLAGS_LEXICAL_ENV_NOT_NEEDED = (1u << 4), /**< no need to create a lexical environment */ CBC_CODE_FLAGS_HAS_EXTENDED_INFO = (1u << 5), /**< this function has extended info block */ CBC_CODE_FLAGS_HAS_TAGGED_LITERALS = (1u << 6), /**< this function has tagged template literal list */ CBC_CODE_FLAGS_HAS_LINE_INFO = (1u << 7), /**< this function has line info block */ CBC_CODE_FLAGS_STATIC_FUNCTION = (1u << 8), /**< this function is a static snapshot function */ CBC_CODE_FLAGS_DEBUGGER_IGNORE = (1u << 9), /**< this function should be ignored by debugger */ CBC_CODE_FLAGS_LEXICAL_BLOCK_NEEDED = (1u << 10), /**< compiled code needs a lexical block */ /* Bits from bit 12 is reserved for function types (see CBC_FUNCTION_TYPE_SHIFT). * Note: the last bits are used for type flags because < and >= operators can be used to check a range of types without decoding the actual type. */ } cbc_code_flags_t; /** * Optional byte code fields. These fields are stored in a reversed * order from the end of the byte code data. * * Value fields: * - when CBC_CODE_FLAGS_MAPPED_ARGUMENTS_NEEDED is set: * argument_end number of argument names encoded as strings * - when function type is not CBC_FUNCTION_CONSTRUCTOR: * function name encoded as string * - when CBC_CODE_FLAGS_HAS_TAGGED_LITERALS is set: * pointer to the tagged template collection encoded as value * * Byte fields when CBC_CODE_FLAGS_HAS_EXTENDED_INFO is set: * - always available: * a byte which contains a combination of CBC_EXTENDED_CODE_FLAGS bits * - when CBC_EXTENDED_CODE_FLAGS_HAS_ARGUMENT_LENGTH is set: * a vlq encoded default value for function length * - when CBC_EXTENDED_CODE_FLAGS_HAS_SOURCE_CODE_RANGE is set: * a pair of vlq encoded values, representing the start and size of the range */ /** * Compact byte code function types. */ typedef enum { /* The first type must be regular expression (see CBC_IS_FUNCTION) */ CBC_REGULAR_EXPRESSION, /**< regular expression literal */ CBC_FUNCTION_NORMAL, /**< function without special properties */ CBC_FUNCTION_CONSTRUCTOR, /**< constructor function */ /* The following functions cannot be constructed (see CBC_FUNCTION_IS_CONSTRUCTABLE) */ CBC_FUNCTION_SCRIPT, /**< script (global) function */ CBC_FUNCTION_GENERATOR, /**< generator function */ CBC_FUNCTION_ASYNC_GENERATOR, /**< async generator function */ /* The following functions has no prototype (see CBC_FUNCTION_HAS_PROTOTYPE) */ CBC_FUNCTION_ACCESSOR, /**< property accessor function */ CBC_FUNCTION_ASYNC, /**< async function */ CBC_FUNCTION_METHOD, /**< method */ /* The following functions are arrow function (see CBC_FUNCTION_IS_ARROW) */ CBC_FUNCTION_ARROW, /**< arrow function */ CBC_FUNCTION_ASYNC_ARROW, /**< arrow function */ } cbc_code_function_types_t; /** * Shift for getting / setting the function type of a byte code. */ #define CBC_FUNCTION_TYPE_SHIFT 12 /** * Compute function type bits in code flags. */ #define CBC_FUNCTION_TO_TYPE_BITS(name) ((name) << CBC_FUNCTION_TYPE_SHIFT) /** * Get function type from code flags. */ #define CBC_FUNCTION_GET_TYPE(flags) ((uint16_t) ((flags) >> CBC_FUNCTION_TYPE_SHIFT)) /** * Checks whether the byte code is a function or a regular expression. */ #define CBC_IS_FUNCTION(flags) ((flags) >= (CBC_FUNCTION_NORMAL << CBC_FUNCTION_TYPE_SHIFT)) /** * Checks whether the function can be constructed with new operator. */ #define CBC_FUNCTION_IS_CONSTRUCTABLE(flags) ((flags) < (CBC_FUNCTION_GENERATOR << CBC_FUNCTION_TYPE_SHIFT)) /** * Checks whether the function has prototype property. */ #define CBC_FUNCTION_HAS_PROTOTYPE(flags) ((flags) < (CBC_FUNCTION_ACCESSOR << CBC_FUNCTION_TYPE_SHIFT)) /** * Checks whether the function is an arrow function. */ #define CBC_FUNCTION_IS_ARROW(flags) ((flags) >= (CBC_FUNCTION_ARROW << CBC_FUNCTION_TYPE_SHIFT)) /** * Compact byte code extended status flags. */ typedef enum { CBC_EXTENDED_CODE_FLAGS_HAS_ARGUMENT_LENGTH = (1u << 0), /**< has argument length */ CBC_EXTENDED_CODE_FLAGS_HAS_SOURCE_CODE_RANGE = (1u << 1), /**< has source code range (start, end) */ CBC_EXTENDED_CODE_FLAGS_SOURCE_CODE_IN_ARGUMENTS = (1u << 2), /**< source code range is inside * the function arguments */ } cbc_extended_code_flags_t; /** * Shared script data. */ typedef enum { CBC_SCRIPT_HAS_USER_VALUE = (1 << 0), /**< script has user value */ CBC_SCRIPT_USER_VALUE_IS_OBJECT = (1 << 1), /**< user value is object */ CBC_SCRIPT_HAS_FUNCTION_ARGUMENTS = (1 << 2), /**< script is a function with arguments source code */ CBC_SCRIPT_HAS_IMPORT_META = (1 << 3), /**< script is a module with import.meta object */ CBC_SCRIPT_IS_EVAL_CODE = (1 << 4), /**< script is compiled by eval like (eval, new Function, etc.) expression */ } cbc_script_type; /** * Value for increasing or decreasing the script reference counter. */ #define CBC_SCRIPT_REF_ONE 0x20 /** * Maximum value of script reference counter. */ #define CBC_SCRIPT_REF_MAX (UINT32_MAX - CBC_SCRIPT_REF_ONE + 1) /** * Sets the type of a script using the user_value. */ #define CBC_SCRIPT_SET_TYPE(script_p, user_value, ref_count) \ do \ { \ (script_p)->refs_and_type = (ref_count); \ if ((user_value) != ECMA_VALUE_EMPTY) \ { \ (script_p)->refs_and_type |= CBC_SCRIPT_HAS_USER_VALUE; \ if (ecma_is_value_object (user_value)) \ { \ (script_p)->refs_and_type |= CBC_SCRIPT_USER_VALUE_IS_OBJECT; \ } \ } \ } while (false) /** * Shared script data. */ typedef struct { #if JERRY_BUILTIN_REALMS ecma_object_t *realm_p; /**< realm object */ #endif /* JERRY_BUILTIN_REALMS */ uint32_t refs_and_type; /**< reference counter and type of the function */ #if JERRY_SOURCE_NAME ecma_value_t source_name; /**< source name */ #endif /* JERRY_SOURCE_NAME */ #if JERRY_FUNCTION_TO_STRING ecma_value_t source_code; /**< source code */ #endif /* JERRY_FUNCTION_TO_STRING */ } cbc_script_t; /** * Get the array of optional values assigned to a script. * * First value: user value * Second value: function arguments value */ #define CBC_SCRIPT_GET_OPTIONAL_VALUES(script_p) ((ecma_value_t *) ((script_p) + 1)) /** * Get user value. */ #define CBC_SCRIPT_GET_USER_VALUE(script_p) (CBC_SCRIPT_GET_OPTIONAL_VALUES (script_p)[0]) /** * Get function arguments. */ #define CBC_SCRIPT_GET_FUNCTION_ARGUMENTS(script_p, type) \ (CBC_SCRIPT_GET_OPTIONAL_VALUES (script_p)[((type) &CBC_SCRIPT_HAS_USER_VALUE) ? 1 : 0]) /** * Get import.meta object. */ #define CBC_SCRIPT_GET_IMPORT_META(script_p, type) \ (CBC_SCRIPT_GET_OPTIONAL_VALUES (script_p)[((type) &CBC_SCRIPT_HAS_USER_VALUE) ? 1 : 0]) #define CBC_OPCODE(arg1, arg2, arg3, arg4) arg1, /** * Opcode list. */ typedef enum { CBC_OPCODE_LIST /**< list of opcodes */ } cbc_opcode_t; /** * Extended opcode list. */ typedef enum { CBC_EXT_OPCODE_LIST /**< list extended opcodes */ } cbc_ext_opcode_t; #undef CBC_OPCODE /** * Opcode flags. */ extern const uint8_t cbc_flags[]; extern const uint8_t cbc_ext_flags[]; #if JERRY_PARSER_DUMP_BYTE_CODE /** * Opcode names for debugging. */ extern const char *const cbc_names[]; extern const char *const cbc_ext_names[]; #endif /* JERRY_PARSER_DUMP_BYTE_CODE */ /** * @} * @} * @} */ #endif /* !BYTE_CODE_H */