7d414a1b52
Previous to this patch, a big-int, float or imag constant was interned (made into a qstr) and then parsed at runtime to create an object each time it was needed. This is wasteful in RAM and not efficient. Now, these constants are parsed straight away in the parser and turned into objects. This allows constants with large numbers of digits (so addresses issue #1103) and takes us a step closer to #722.
144 lines
4.4 KiB
C
144 lines
4.4 KiB
C
/*
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* This file is part of the Micro Python project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2014 Damien P. George
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <stdio.h>
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#include <string.h>
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#include <assert.h>
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#include "py/nlr.h"
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#include "py/runtime0.h"
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#include "py/runtime.h"
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#include "py/emitglue.h"
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#if MICROPY_EMIT_NATIVE
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#if 0 // print debugging info
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#define DEBUG_printf DEBUG_printf
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#else // don't print debugging info
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#define DEBUG_printf(...) (void)0
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#endif
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// convert a Micro Python object to a valid native value based on type
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mp_uint_t mp_convert_obj_to_native(mp_obj_t obj, mp_uint_t type) {
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DEBUG_printf("mp_convert_obj_to_native(%p, " UINT_FMT ")\n", obj, type);
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switch (type & 3) {
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case MP_NATIVE_TYPE_OBJ: return (mp_uint_t)obj;
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case MP_NATIVE_TYPE_BOOL:
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case MP_NATIVE_TYPE_INT: return mp_obj_get_int(obj);
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case MP_NATIVE_TYPE_UINT: {
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mp_buffer_info_t bufinfo;
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if (mp_get_buffer(obj, &bufinfo, MP_BUFFER_RW)) {
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return (mp_uint_t)bufinfo.buf;
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} else {
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// TODO should be mp_obj_get_uint_truncated or something
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return mp_obj_get_int(obj);
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}
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}
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default: assert(0); return 0;
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}
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}
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// convert a native value to a Micro Python object based on type
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mp_obj_t mp_convert_native_to_obj(mp_uint_t val, mp_uint_t type) {
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DEBUG_printf("mp_convert_native_to_obj(" UINT_FMT ", " UINT_FMT ")\n", val, type);
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switch (type & 3) {
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case MP_NATIVE_TYPE_OBJ: return (mp_obj_t)val;
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case MP_NATIVE_TYPE_BOOL: return MP_BOOL(val);
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case MP_NATIVE_TYPE_INT: return mp_obj_new_int(val);
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case MP_NATIVE_TYPE_UINT: return mp_obj_new_int_from_uint(val);
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default: assert(0); return mp_const_none;
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}
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}
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// wrapper that accepts n_args and n_kw in one argument
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// (native emitter can only pass at most 3 arguments to a function)
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mp_obj_t mp_native_call_function_n_kw(mp_obj_t fun_in, mp_uint_t n_args_kw, const mp_obj_t *args) {
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return mp_call_function_n_kw(fun_in, n_args_kw & 0xff, (n_args_kw >> 8) & 0xff, args);
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}
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// wrapper that makes raise obj and raises it
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// END_FINALLY opcode requires that we don't raise if o==None
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void mp_native_raise(mp_obj_t o) {
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if (o != mp_const_none) {
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nlr_raise(mp_make_raise_obj(o));
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}
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}
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// these must correspond to the respective enum in runtime0.h
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void *const mp_fun_table[MP_F_NUMBER_OF] = {
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mp_convert_obj_to_native,
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mp_convert_native_to_obj,
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mp_load_const_str,
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mp_load_const_bytes,
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mp_load_name,
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mp_load_global,
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mp_load_build_class,
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mp_load_attr,
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mp_load_method,
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mp_store_name,
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mp_store_global,
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mp_store_attr,
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mp_obj_subscr,
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mp_obj_is_true,
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mp_unary_op,
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mp_binary_op,
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mp_obj_new_tuple,
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mp_obj_new_list,
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mp_obj_list_append,
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mp_obj_new_dict,
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mp_obj_dict_store,
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#if MICROPY_PY_BUILTINS_SET
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mp_obj_new_set,
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mp_obj_set_store,
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#endif
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mp_make_function_from_raw_code,
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mp_native_call_function_n_kw,
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mp_call_method_n_kw,
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mp_getiter,
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mp_iternext,
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nlr_push,
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nlr_pop,
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mp_native_raise,
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mp_import_name,
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mp_import_from,
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mp_import_all,
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#if MICROPY_PY_BUILTINS_SLICE
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mp_obj_new_slice,
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#endif
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mp_unpack_sequence,
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mp_unpack_ex,
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mp_delete_name,
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mp_delete_global,
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};
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/*
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void mp_f_vector(mp_fun_kind_t fun_kind) {
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(mp_f_table[fun_kind])();
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}
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*/
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#endif // MICROPY_EMIT_NATIVE
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