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78d702c300
This patch adds a configuration option (MICROPY_CAN_OVERRIDE_BUILTINS) which, when enabled, allows to override all names within the builtins module. A builtins override dict is created the first time the user assigns to a name in the builtins model, and then that dict is searched first on subsequent lookups. Note that this implementation doesn't allow deleting of names. This patch also does some refactoring of builtins code, creating the modbuiltins.c file. Addresses issue #959.
187 lines
6.3 KiB
C
187 lines
6.3 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) 2013, 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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// options to control how Micro Python is built
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// Linking with GNU readline causes binary to be licensed under GPL
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#ifndef MICROPY_USE_READLINE
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#define MICROPY_USE_READLINE (0)
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#endif
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#define MICROPY_ALLOC_PATH_MAX (260) //see minwindef.h for msvc or limits.h for mingw
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#define MICROPY_EMIT_X64 (0)
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#define MICROPY_EMIT_THUMB (0)
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#define MICROPY_EMIT_INLINE_THUMB (0)
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#define MICROPY_ENABLE_GC (1)
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#define MICROPY_ENABLE_FINALISER (1)
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#define MICROPY_MEM_STATS (1)
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#define MICROPY_DEBUG_PRINTERS (1)
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#define MICROPY_HELPER_REPL (1)
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#define MICROPY_HELPER_LEXER_UNIX (1)
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#define MICROPY_ENABLE_SOURCE_LINE (1)
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#define MICROPY_FLOAT_IMPL (MICROPY_FLOAT_IMPL_DOUBLE)
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#define MICROPY_LONGINT_IMPL (MICROPY_LONGINT_IMPL_MPZ)
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#define MICROPY_STREAMS_NON_BLOCK (1)
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#define MICROPY_OPT_COMPUTED_GOTO (0)
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#define MICROPY_CAN_OVERRIDE_BUILTINS (1)
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#define MICROPY_PY_BUILTINS_STR_UNICODE (1)
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#define MICROPY_PY_BUILTINS_MEMORYVIEW (1)
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#define MICROPY_PY_BUILTINS_FROZENSET (1)
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#define MICROPY_PY_BUILTINS_COMPILE (1)
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#define MICROPY_PY_SYS_EXIT (1)
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#define MICROPY_PY_SYS_PLATFORM "win32"
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#define MICROPY_PY_SYS_MAXSIZE (1)
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#define MICROPY_PY_SYS_STDFILES (1)
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#define MICROPY_PY_CMATH (1)
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#define MICROPY_PY_IO_FILEIO (1)
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#define MICROPY_PY_GC_COLLECT_RETVAL (1)
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#define MICROPY_PY_UCTYPES (1)
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#define MICROPY_PY_UZLIB (1)
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#define MICROPY_PY_UJSON (1)
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#define MICROPY_PY_URE (1)
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#define MICROPY_PY_UHEAPQ (1)
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#define MICROPY_ERROR_REPORTING (MICROPY_ERROR_REPORTING_DETAILED)
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#ifdef _MSC_VER
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#define MICROPY_GCREGS_SETJMP (1)
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#endif
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#define MICROPY_ENABLE_EMERGENCY_EXCEPTION_BUF (1)
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#define MICROPY_EMERGENCY_EXCEPTION_BUF_SIZE (256)
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#define MICROPY_PORT_INIT_FUNC init()
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#define MICROPY_PORT_DEINIT_FUNC deinit()
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// type definitions for the specific machine
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#if defined( __MINGW32__ ) && defined( __LP64__ )
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typedef long mp_int_t; // must be pointer size
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typedef unsigned long mp_uint_t; // must be pointer size
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#elif defined ( _MSC_VER ) && defined( _WIN64 )
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typedef __int64 mp_int_t;
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typedef unsigned __int64 mp_uint_t;
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#else
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// These are definitions for machines where sizeof(int) == sizeof(void*),
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// regardless for actual size.
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typedef int mp_int_t; // must be pointer size
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typedef unsigned int mp_uint_t; // must be pointer size
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#endif
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#define BYTES_PER_WORD sizeof(mp_int_t)
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// Just assume Windows is little-endian - mingw32 gcc doesn't
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// define standard endianness macros.
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#define MP_ENDIANNESS_LITTLE (1)
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// Cannot include <sys/types.h>, as it may lead to symbol name clashes
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#if _FILE_OFFSET_BITS == 64 && !defined(__LP64__)
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typedef long long mp_off_t;
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#else
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typedef long mp_off_t;
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#endif
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typedef void *machine_ptr_t; // must be of pointer size
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typedef const void *machine_const_ptr_t; // must be of pointer size
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extern const struct _mp_obj_fun_builtin_t mp_builtin_input_obj;
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extern const struct _mp_obj_fun_builtin_t mp_builtin_open_obj;
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#define MICROPY_PORT_BUILTINS \
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{ MP_OBJ_NEW_QSTR(MP_QSTR_input), (mp_obj_t)&mp_builtin_input_obj }, \
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{ MP_OBJ_NEW_QSTR(MP_QSTR_open), (mp_obj_t)&mp_builtin_open_obj },
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extern const struct _mp_obj_module_t mp_module_os;
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extern const struct _mp_obj_module_t mp_module_time;
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#define MICROPY_PORT_BUILTIN_MODULES \
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{ MP_OBJ_NEW_QSTR(MP_QSTR_time), (mp_obj_t)&mp_module_time }, \
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{ MP_OBJ_NEW_QSTR(MP_QSTR__os), (mp_obj_t)&mp_module_os }, \
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// We need to provide a declaration/definition of alloca()
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#include <malloc.h>
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#include "realpath.h"
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#include "init.h"
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// sleep for given number of milliseconds
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void msec_sleep(double msec);
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// MSVC specifics
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#ifdef _MSC_VER
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// Sanity check
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#if ( _MSC_VER < 1800 )
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#error Can only build with Visual Studio 2013 toolset
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#endif
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// CL specific overrides from mpconfig
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#define NORETURN __declspec(noreturn)
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#define MICROPY_PORT_CONSTANTS { "dummy", 0 } //can't have zero-sized array
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#ifdef _WIN64
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#define MP_SSIZE_MAX _I64_MAX
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#else
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#define MP_SSIZE_MAX _I32_MAX
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#endif
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// CL specific definitions
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#define restrict
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#define inline __inline
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#define alignof(t) __alignof(t)
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#define STDIN_FILENO 0
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#define STDOUT_FILENO 1
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#define STDERR_FILENO 2
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#define PATH_MAX MICROPY_ALLOC_PATH_MAX
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#define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
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#define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
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// Put static/global variables in sections with a known name we can lookup for the GC
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// For this to work this header must be included by all sources, which is the case normally
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#define MICROPY_PORT_DATASECTION "upydata"
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#define MICROPY_PORT_BSSSECTION "upybss"
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#pragma data_seg(MICROPY_PORT_DATASECTION)
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#pragma bss_seg(MICROPY_PORT_BSSSECTION)
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// System headers (needed e.g. for nlr.h)
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#include <stddef.h> //for NULL
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#include <assert.h> //for assert
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// Functions implemented in platform code
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int snprintf(char *dest, size_t count, const char *format, ...);
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#endif
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// MingW specifics
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#ifdef __MINGW32__
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#define MICROPY_PORT_BSSSECTION ".bss"
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#endif
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