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/** This file is part of the MicroPython project, http://micropython.org/** The MIT License (MIT)** Copyright (c) 2013, 2014 Damien P. George** Permission is hereby granted, free of charge, to any person obtaining a copy* of this software and associated documentation files (the "Software"), to deal* in the Software without restriction, including without limitation the rights* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell* copies of the Software, and to permit persons to whom the Software is* furnished to do so, subject to the following conditions:** The above copyright notice and this permission notice shall be included in* all copies or substantial portions of the Software.** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN* THE SOFTWARE.*/#ifndef MICROPY_INCLUDED_PY_EMIT_H#define MICROPY_INCLUDED_PY_EMIT_H#include "py/lexer.h"#include "py/scope.h"/* Notes on passes:* We don't know exactly the opcodes in pass 1 because they depend on the* closing over of variables (LOAD_CLOSURE, BUILD_TUPLE, MAKE_CLOSURE), which* depends on determining the scope of variables in each function, and this* is not known until the end of pass 1.* As a consequence, we don't know the maximum stack size until the end of pass 2.* This is problematic for some emitters (x64) since they need to know the maximum* stack size to compile the entry to the function, and this affects code size.*/typedef enum {MP_PASS_SCOPE = 1, // work out id's and their kind, and number of labelsMP_PASS_STACK_SIZE = 2, // work out maximum stack sizeMP_PASS_CODE_SIZE = 3, // work out code size and label offsetsMP_PASS_EMIT = 4, // emit code} pass_kind_t;#define MP_EMIT_STAR_FLAG_SINGLE (0x01)#define MP_EMIT_STAR_FLAG_DOUBLE (0x02)#define MP_EMIT_BREAK_FROM_FOR (0x8000)// Kind for emit_id_ops->local()#define MP_EMIT_IDOP_LOCAL_FAST (0)#define MP_EMIT_IDOP_LOCAL_DEREF (1)// Kind for emit_id_ops->global()#define MP_EMIT_IDOP_GLOBAL_NAME (0)#define MP_EMIT_IDOP_GLOBAL_GLOBAL (1)// Kind for emit->import()#define MP_EMIT_IMPORT_NAME (0)#define MP_EMIT_IMPORT_FROM (1)#define MP_EMIT_IMPORT_STAR (2)// Kind for emit->subscr()#define MP_EMIT_SUBSCR_LOAD (0)#define MP_EMIT_SUBSCR_STORE (1)#define MP_EMIT_SUBSCR_DELETE (2)// Kind for emit->attr()#define MP_EMIT_ATTR_LOAD (0)#define MP_EMIT_ATTR_STORE (1)#define MP_EMIT_ATTR_DELETE (2)// Kind for emit->setup_block()#define MP_EMIT_SETUP_BLOCK_WITH (0)#define MP_EMIT_SETUP_BLOCK_EXCEPT (1)#define MP_EMIT_SETUP_BLOCK_FINALLY (2)// Kind for emit->build()#define MP_EMIT_BUILD_TUPLE (0)#define MP_EMIT_BUILD_LIST (1)#define MP_EMIT_BUILD_MAP (2)#define MP_EMIT_BUILD_SET (3)#define MP_EMIT_BUILD_SLICE (4)// Kind for emit->yield()#define MP_EMIT_YIELD_VALUE (0)#define MP_EMIT_YIELD_FROM (1)typedef struct _emit_t emit_t;typedef struct _mp_emit_method_table_id_ops_t {void (*local)(emit_t *emit, qstr qst, mp_uint_t local_num, int kind);void (*global)(emit_t *emit, qstr qst, int kind);} mp_emit_method_table_id_ops_t;typedef struct _emit_method_table_t {#if MICROPY_DYNAMIC_COMPILERemit_t *(*emit_new)(mp_obj_t * error_slot, uint *label_slot, mp_uint_t max_num_labels);void (*emit_free)(emit_t *emit);#endifvoid (*start_pass)(emit_t *emit, pass_kind_t pass, scope_t *scope);void (*end_pass)(emit_t *emit);bool (*last_emit_was_return_value)(emit_t *emit);void (*adjust_stack_size)(emit_t *emit, mp_int_t delta);void (*set_source_line)(emit_t *emit, mp_uint_t line);mp_emit_method_table_id_ops_t load_id;mp_emit_method_table_id_ops_t store_id;mp_emit_method_table_id_ops_t delete_id;void (*label_assign)(emit_t *emit, mp_uint_t l);void (*import)(emit_t *emit, qstr qst, int kind);void (*load_const_tok)(emit_t *emit, mp_token_kind_t tok);void (*load_const_small_int)(emit_t *emit, mp_int_t arg);void (*load_const_str)(emit_t *emit, qstr qst);void (*load_const_obj)(emit_t *emit, mp_obj_t obj);void (*load_null)(emit_t *emit);void (*load_method)(emit_t *emit, qstr qst, bool is_super);void (*load_build_class)(emit_t *emit);void (*subscr)(emit_t *emit, int kind);void (*attr)(emit_t *emit, qstr qst, int kind);void (*dup_top)(emit_t *emit);void (*dup_top_two)(emit_t *emit);void (*pop_top)(emit_t *emit);void (*rot_two)(emit_t *emit);void (*rot_three)(emit_t *emit);void (*jump)(emit_t *emit, mp_uint_t label);void (*pop_jump_if)(emit_t *emit, bool cond, mp_uint_t label);void (*jump_if_or_pop)(emit_t *emit, bool cond, mp_uint_t label);void (*unwind_jump)(emit_t *emit, mp_uint_t label, mp_uint_t except_depth);void (*setup_block)(emit_t *emit, mp_uint_t label, int kind);void (*with_cleanup)(emit_t *emit, mp_uint_t label);void (*end_finally)(emit_t *emit);void (*get_iter)(emit_t *emit, bool use_stack);void (*for_iter)(emit_t *emit, mp_uint_t label);void (*for_iter_end)(emit_t *emit);void (*pop_except_jump)(emit_t *emit, mp_uint_t label, bool within_exc_handler);void (*unary_op)(emit_t *emit, mp_unary_op_t op);void (*binary_op)(emit_t *emit, mp_binary_op_t op);void (*build)(emit_t *emit, mp_uint_t n_args, int kind);void (*store_map)(emit_t *emit);void (*store_comp)(emit_t *emit, scope_kind_t kind, mp_uint_t set_stack_index);void (*unpack_sequence)(emit_t *emit, mp_uint_t n_args);void (*unpack_ex)(emit_t *emit, mp_uint_t n_left, mp_uint_t n_right);void (*make_function)(emit_t *emit, scope_t *scope, mp_uint_t n_pos_defaults, mp_uint_t n_kw_defaults);void (*make_closure)(emit_t *emit, scope_t *scope, mp_uint_t n_closed_over, mp_uint_t n_pos_defaults, mp_uint_t n_kw_defaults);void (*call_function)(emit_t *emit, mp_uint_t n_positional, mp_uint_t n_keyword, mp_uint_t star_flags);void (*call_method)(emit_t *emit, mp_uint_t n_positional, mp_uint_t n_keyword, mp_uint_t star_flags);void (*return_value)(emit_t *emit);void (*raise_varargs)(emit_t *emit, mp_uint_t n_args);void (*yield)(emit_t *emit, int kind);// these methods are used to control entry to/exit from an exception handler// they may or may not emit codevoid (*start_except_handler)(emit_t *emit);void (*end_except_handler)(emit_t *emit);} emit_method_table_t;static inline void mp_emit_common_get_id_for_load(scope_t *scope, qstr qst) {scope_find_or_add_id(scope, qst, ID_INFO_KIND_GLOBAL_IMPLICIT);}void mp_emit_common_get_id_for_modification(scope_t *scope, qstr qst);void mp_emit_common_id_op(emit_t *emit, const mp_emit_method_table_id_ops_t *emit_method_table, scope_t *scope, qstr qst);extern const emit_method_table_t emit_bc_method_table;extern const emit_method_table_t emit_native_x64_method_table;extern const emit_method_table_t emit_native_x86_method_table;extern const emit_method_table_t emit_native_thumb_method_table;extern const emit_method_table_t emit_native_arm_method_table;extern const emit_method_table_t emit_native_xtensa_method_table;extern const emit_method_table_t emit_native_xtensawin_method_table;extern const mp_emit_method_table_id_ops_t mp_emit_bc_method_table_load_id_ops;extern const mp_emit_method_table_id_ops_t mp_emit_bc_method_table_store_id_ops;extern const mp_emit_method_table_id_ops_t mp_emit_bc_method_table_delete_id_ops;emit_t *emit_bc_new(void);emit_t *emit_native_x64_new(mp_obj_t *error_slot, uint *label_slot, mp_uint_t max_num_labels);emit_t *emit_native_x86_new(mp_obj_t *error_slot, uint *label_slot, mp_uint_t max_num_labels);emit_t *emit_native_thumb_new(mp_obj_t *error_slot, uint *label_slot, mp_uint_t max_num_labels);emit_t *emit_native_arm_new(mp_obj_t *error_slot, uint *label_slot, mp_uint_t max_num_labels);emit_t *emit_native_xtensa_new(mp_obj_t *error_slot, uint *label_slot, mp_uint_t max_num_labels);emit_t *emit_native_xtensawin_new(mp_obj_t *error_slot, uint *label_slot, mp_uint_t max_num_labels);void emit_bc_set_max_num_labels(emit_t *emit, mp_uint_t max_num_labels);void emit_bc_free(emit_t *emit);void emit_native_x64_free(emit_t *emit);void emit_native_x86_free(emit_t *emit);void emit_native_thumb_free(emit_t *emit);void emit_native_arm_free(emit_t *emit);void emit_native_xtensa_free(emit_t *emit);void emit_native_xtensawin_free(emit_t *emit);void mp_emit_bc_start_pass(emit_t *emit, pass_kind_t pass, scope_t *scope);void mp_emit_bc_end_pass(emit_t *emit);bool mp_emit_bc_last_emit_was_return_value(emit_t *emit);void mp_emit_bc_adjust_stack_size(emit_t *emit, mp_int_t delta);void mp_emit_bc_set_source_line(emit_t *emit, mp_uint_t line);void mp_emit_bc_load_local(emit_t *emit, qstr qst, mp_uint_t local_num, int kind);void mp_emit_bc_load_global(emit_t *emit, qstr qst, int kind);void mp_emit_bc_store_local(emit_t *emit, qstr qst, mp_uint_t local_num, int kind);void mp_emit_bc_store_global(emit_t *emit, qstr qst, int kind);void mp_emit_bc_delete_local(emit_t *emit, qstr qst, mp_uint_t local_num, int kind);void mp_emit_bc_delete_global(emit_t *emit, qstr qst, int kind);void mp_emit_bc_label_assign(emit_t *emit, mp_uint_t l);void mp_emit_bc_import(emit_t *emit, qstr qst, int kind);void mp_emit_bc_load_const_tok(emit_t *emit, mp_token_kind_t tok);void mp_emit_bc_load_const_small_int(emit_t *emit, mp_int_t arg);void mp_emit_bc_load_const_str(emit_t *emit, qstr qst);void mp_emit_bc_load_const_obj(emit_t *emit, mp_obj_t obj);void mp_emit_bc_load_null(emit_t *emit);void mp_emit_bc_load_method(emit_t *emit, qstr qst, bool is_super);void mp_emit_bc_load_build_class(emit_t *emit);void mp_emit_bc_subscr(emit_t *emit, int kind);void mp_emit_bc_attr(emit_t *emit, qstr qst, int kind);void mp_emit_bc_dup_top(emit_t *emit);void mp_emit_bc_dup_top_two(emit_t *emit);void mp_emit_bc_pop_top(emit_t *emit);void mp_emit_bc_rot_two(emit_t *emit);void mp_emit_bc_rot_three(emit_t *emit);void mp_emit_bc_jump(emit_t *emit, mp_uint_t label);void mp_emit_bc_pop_jump_if(emit_t *emit, bool cond, mp_uint_t label);void mp_emit_bc_jump_if_or_pop(emit_t *emit, bool cond, mp_uint_t label);void mp_emit_bc_unwind_jump(emit_t *emit, mp_uint_t label, mp_uint_t except_depth);void mp_emit_bc_setup_block(emit_t *emit, mp_uint_t label, int kind);void mp_emit_bc_with_cleanup(emit_t *emit, mp_uint_t label);void mp_emit_bc_end_finally(emit_t *emit);void mp_emit_bc_get_iter(emit_t *emit, bool use_stack);void mp_emit_bc_for_iter(emit_t *emit, mp_uint_t label);void mp_emit_bc_for_iter_end(emit_t *emit);void mp_emit_bc_pop_except_jump(emit_t *emit, mp_uint_t label, bool within_exc_handler);void mp_emit_bc_unary_op(emit_t *emit, mp_unary_op_t op);void mp_emit_bc_binary_op(emit_t *emit, mp_binary_op_t op);void mp_emit_bc_build(emit_t *emit, mp_uint_t n_args, int kind);void mp_emit_bc_store_map(emit_t *emit);void mp_emit_bc_store_comp(emit_t *emit, scope_kind_t kind, mp_uint_t list_stack_index);void mp_emit_bc_unpack_sequence(emit_t *emit, mp_uint_t n_args);void mp_emit_bc_unpack_ex(emit_t *emit, mp_uint_t n_left, mp_uint_t n_right);void mp_emit_bc_make_function(emit_t *emit, scope_t *scope, mp_uint_t n_pos_defaults, mp_uint_t n_kw_defaults);void mp_emit_bc_make_closure(emit_t *emit, scope_t *scope, mp_uint_t n_closed_over, mp_uint_t n_pos_defaults, mp_uint_t n_kw_defaults);void mp_emit_bc_call_function(emit_t *emit, mp_uint_t n_positional, mp_uint_t n_keyword, mp_uint_t star_flags);void mp_emit_bc_call_method(emit_t *emit, mp_uint_t n_positional, mp_uint_t n_keyword, mp_uint_t star_flags);void mp_emit_bc_return_value(emit_t *emit);void mp_emit_bc_raise_varargs(emit_t *emit, mp_uint_t n_args);void mp_emit_bc_yield(emit_t *emit, int kind);void mp_emit_bc_start_except_handler(emit_t *emit);void mp_emit_bc_end_except_handler(emit_t *emit);typedef struct _emit_inline_asm_t emit_inline_asm_t;typedef struct _emit_inline_asm_method_table_t {#if MICROPY_DYNAMIC_COMPILERemit_inline_asm_t *(*asm_new)(mp_uint_t max_num_labels);void (*asm_free)(emit_inline_asm_t *emit);#endifvoid (*start_pass)(emit_inline_asm_t *emit, pass_kind_t pass, mp_obj_t *error_slot);void (*end_pass)(emit_inline_asm_t *emit, mp_uint_t type_sig);mp_uint_t (*count_params)(emit_inline_asm_t *emit, mp_uint_t n_params, mp_parse_node_t *pn_params);bool (*label)(emit_inline_asm_t *emit, mp_uint_t label_num, qstr label_id);void (*op)(emit_inline_asm_t *emit, qstr op, mp_uint_t n_args, mp_parse_node_t *pn_args);} emit_inline_asm_method_table_t;extern const emit_inline_asm_method_table_t emit_inline_thumb_method_table;extern const emit_inline_asm_method_table_t emit_inline_xtensa_method_table;emit_inline_asm_t *emit_inline_thumb_new(mp_uint_t max_num_labels);emit_inline_asm_t *emit_inline_xtensa_new(mp_uint_t max_num_labels);void emit_inline_thumb_free(emit_inline_asm_t *emit);void emit_inline_xtensa_free(emit_inline_asm_t *emit);#if MICROPY_WARNINGSvoid mp_emitter_warning(pass_kind_t pass, const char *msg);#else#define mp_emitter_warning(pass, msg)#endif#endif // MICROPY_INCLUDED_PY_EMIT_H
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