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Jim Mussared a7fa18c203 py/builtinimport: Refactor module importing. 
Simplify and document/comment the handling of builtin import for:
- already-loaded modules
- built-in modules
- built-in umodules (formerly weak links)
- filesystem modules

Retains existing functionality with smaller code size but should also
facilitate potential new features (built-in packages, controlling the
frozen path).

Also makes the (unix-only) -m behavior a bit more obvious and configurable.

Code size change with this commit:

   bare-arm:    +0 +0.000%
minimal x86:   -64 -0.039%
   unix x64:   -32 -0.006%
unix nanbox:    -4 -0.001%
      stm32:  -184 -0.047% PYBV10
     cc3200:  -120 -0.065%
    esp8266:  -228 -0.033% GENERIC
      esp32:  -268 -0.018% GENERIC[incl +16(data)]
        nrf:  -152 -0.087% pca10040
        rp2:  -256 -0.052% PICO
       samd:   -80 -0.057% ADAFRUIT_ITSYBITSY_M4_EXPRESS
 		2021-12-01 13:23:34 +11:00
..
argcheck.c py: Add option to compile without any error messages at all. 2021-04-27 23:51:52 +10:00
asmarm.c py/emitglue: Always flush caches when assigning native ARM code. 2021-06-05 11:03:04 +10:00
asmarm.h py/emitglue: Always flush caches when assigning native ARM code. 2021-06-05 11:03:04 +10:00
asmbase.c all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
asmbase.h all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
asmthumb.c py/emitglue: Always flush caches when assigning native ARM code. 2021-06-05 11:03:04 +10:00
asmthumb.h py/emitglue: Always flush caches when assigning native ARM code. 2021-06-05 11:03:04 +10:00
asmx64.c py/asmx64: Support use of top 8 regs in src_r64 argument. 2021-05-20 23:43:25 +10:00
asmx64.h py/asm: Add condition codes for signed comparisons. 2020-06-27 00:24:04 +10:00
asmx86.c py/asm: Add funcs/macros to emit machine code for logical-shift-right. 2020-06-27 00:24:04 +10:00
asmx86.h py/asm: Add condition codes for signed comparisons. 2020-06-27 00:24:04 +10:00
asmxtensa.c all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
asmxtensa.h py/asm: Add funcs/macros to emit machine code for logical-shift-right. 2020-06-27 00:24:04 +10:00
bc.c all: Remove MICROPY_OPT_CACHE_MAP_LOOKUP_IN_BYTECODE. 2021-09-16 16:04:03 +10:00
bc.h py: Mark unused arguments from bytecode decoding macros. 2021-06-25 10:58:22 +10:00
bc0.h py/bc0.h: Shift comment to start of line to improve format consistency. 2020-02-28 10:29:32 +11:00
binary.c all: Fix signed shifts and NULL access errors from -fsanitize=undefined. 2021-06-24 23:01:04 +10:00
binary.h py/binary: Change mp_uint_t to size_t for index, size, align args. 2019-09-02 13:14:27 +10:00
builtin.h extmod: Add platform module. 2021-09-19 23:35:10 +10:00
builtinevex.c all: Use MP_ERROR_TEXT for all error messages. 2020-04-05 15:02:06 +10:00
builtinhelp.c all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
builtinimport.c py/builtinimport: Refactor module importing. 2021-12-01 13:23:34 +11:00
compile.c py/parse: Simplify parse nodes representing a list. 2021-09-10 14:09:44 +10:00
compile.h py: Add global default_emit_opt variable to make emit kind persistent. 2019-08-28 12:47:58 +10:00
dynruntime.h py: Introduce and use mp_raise_type_arg helper. 2021-07-15 00:12:41 +10:00
dynruntime.mk all: Remove MICROPY_OPT_CACHE_MAP_LOOKUP_IN_BYTECODE. 2021-09-16 16:04:03 +10:00
emit.h all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
emitbc.c all: Remove MICROPY_OPT_CACHE_MAP_LOOKUP_IN_BYTECODE. 2021-09-16 16:04:03 +10:00
emitcommon.c py/scope: Optimise scope_find_or_add_id to not need "added" arg. 2018-10-28 00:38:18 +11:00
emitglue.c py/emitglue: Always flush caches when assigning native ARM code. 2021-06-05 11:03:04 +10:00
emitglue.h py: Integrate sys.settrace feature into the VM and runtime. 2019-08-30 16:44:12 +10:00
emitinlinethumb.c py/emitinlinethumb: Exclude code using #if when ARMV7M disabled. 2021-01-29 23:57:10 +11:00
emitinlinextensa.c py: Use unsigned comparison of chars. 2020-10-22 11:47:36 +02:00
emitnarm.c py/emitnative: Add support for return/break/continue in try and with. 2018-09-04 14:31:28 +10:00
emitnative.c py/emitnative: Ensure load_subscr does not clobber existing REG_RET. 2021-09-13 22:30:24 +10:00
emitnthumb.c py/emitnative: Add support for return/break/continue in try and with. 2018-09-04 14:31:28 +10:00
emitnx64.c py/emitnative: Add support for return/break/continue in try and with. 2018-09-04 14:31:28 +10:00
emitnx86.c py/nativeglue: Add new header file with native function table typedef. 2019-12-12 20:15:28 +11:00
emitnxtensa.c py/emitnative: Add support for return/break/continue in try and with. 2018-09-04 14:31:28 +10:00
emitnxtensawin.c py: Add new Xtensa-Windowed arch for native emitter. 2019-10-05 13:44:53 +10:00
formatfloat.c all: Fix implicit conversion from double to float. 2020-04-18 22:42:24 +10:00
formatfloat.h all: Use the name MicroPython consistently in comments 2017-07-31 18:35:40 +10:00
frozenmod.c all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
frozenmod.h various: Update early copyright years to match actual edit history. 2019-05-17 18:06:11 +10:00
gc.c py/gc: Add hook to run code during time consuming GC operations. 2021-11-01 15:39:37 +11:00
gc.h py/gc: Change include of stdint.h to stddef.h. 2021-02-05 15:46:56 +11:00
grammar.h py/compile: Implement PEP 526, syntax for variable annotations. 2020-06-16 23:18:01 +10:00
lexer.c py/lexer: Support nested [] and {} characters within f-string params. 2021-11-25 21:50:58 +11:00
lexer.h py: Implement partial PEP-498 (f-string) support. 2021-08-14 16:58:40 +10:00
makecompresseddata.py py/makecompresseddata.py: Make compression deterministic. 2020-04-20 10:32:49 +10:00
makemoduledefs.py all: Update Python code to conform to latest black formatting. 2020-08-29 15:18:01 +10:00
makeqstrdata.py all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
makeqstrdefs.py py/makeqstrdefs.py: Don't include .h files explicitly in preprocessing. 2021-06-25 10:50:54 +10:00
makeversionhdr.py py/makeversionhdr: Add --tags arg to git describe. 2021-07-05 10:41:31 -05:00
malloc.c all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
map.c py: Add wrapper macros so hot VM functions can go in fast code location. 2021-10-15 23:31:19 +11:00
misc.h stm32: Add implementation of machine.bitstream. 2021-08-19 22:50:32 +10:00
mkenv.mk py/mkrules: Automatically build mpy-cross if it doesn't exist. 2021-08-07 20:25:32 +10:00
mkrules.cmake py/mkrules: Automatically build mpy-cross if it doesn't exist. 2021-08-07 20:25:32 +10:00
mkrules.mk py/mkrules.mk: Do submodule sync in "make submodules". 2021-08-19 22:53:44 +10:00
modarray.c all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
modbuiltins.c py: Support single argument to optimised MP_OBJ_STOP_ITERATION. 2021-07-15 00:12:41 +10:00
modcmath.c all: Format code to add space after C++-style comment start. 2020-04-23 11:24:25 +10:00
modcollections.c all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
modgc.c all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
modio.c py: Rename remaining object types to be of the form mp_type_xxx. 2021-03-26 13:48:34 +11:00
modmath.c py/modmath: Simplify handling of positional args to reduce code size. 2020-12-14 13:30:56 +11:00
modmicropython.c py/gc: Make gc_lock_depth have a count per thread. 2021-05-10 13:07:16 +10:00
modstruct.c all: Use MP_ERROR_TEXT for all error messages. 2020-04-05 15:02:06 +10:00
modsys.c py/modsys: Replace non-ASCII quote char with ASCII char. 2021-11-19 17:26:04 +11:00
modthread.c py/mpstate: Make exceptions thread-local. 2021-06-19 09:43:44 +10:00
moduerrno.c all: Format code to add space after C++-style comment start. 2020-04-23 11:24:25 +10:00
mpconfig.h py/builtinimport: Refactor module importing. 2021-12-01 13:23:34 +11:00
mperrno.h py/mperrno: Add MP_ECANCELED error code. 2021-06-24 23:14:01 +10:00
mphal.h all: Rename absolute time-based functions to include "epoch". 2020-09-18 17:20:34 +10:00
mpprint.c py/mpprint: Fix length calculation for strings with precision-modifier. 2020-12-07 23:32:06 +11:00
mpprint.h extmod/modujson: Add support for dump/dumps separators keyword-argument. 2021-08-07 13:52:16 +10:00
mpstate.c all: Use the name MicroPython consistently in comments 2017-07-31 18:35:40 +10:00
mpstate.h all: Remove MICROPY_OPT_CACHE_MAP_LOOKUP_IN_BYTECODE. 2021-09-16 16:04:03 +10:00
mpthread.h all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
mpz.c all: Fix signed shifts and NULL access errors from -fsanitize=undefined. 2021-06-24 23:01:04 +10:00
mpz.h tools/codeformat.py: Eliminate need for sizeof fixup. 2020-03-11 14:34:40 +11:00
nativeglue.c all: Fix implicit floating point promotion. 2020-04-18 22:36:14 +10:00
nativeglue.h py/nativeglue.h: Rename "setjmp" entry to "setjmp_" to avoid any clash. 2020-05-14 21:48:05 +10:00
nlr.c all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
nlr.h py/nlr: Implement NLR for AArch64. 2021-03-11 12:51:10 +11:00
nlraarch64.c py/nlraarch64: Add underscore prefix to function symbols for Darwin ABI. 2021-05-18 11:46:30 +10:00
nlrpowerpc.c all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
nlrsetjmp.c py/nlr: Factor out common NLR code to macro and generic funcs in nlr.c. 2017-12-28 16:46:30 +11:00
nlrthumb.c all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
nlrx64.c py/nlrx64: Correct the detection of Darwin ABI. 2021-05-18 11:52:00 +10:00
nlrx86.c all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
nlrxtensa.c all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
obj.c py: Add wrapper macros so hot VM functions can go in fast code location. 2021-10-15 23:31:19 +11:00
obj.h py/runtime: Allow types to use both .attr and .locals_dict. 2021-11-22 12:10:35 +11:00
objarray.c py/objarray: Fix constructing a memoryview from a memoryview. 2021-05-18 10:18:56 +10:00
objarray.h py/objarray.h: Add mp_obj_memoryview_init() helper function. 2020-09-25 12:23:11 +10:00
objattrtuple.c all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
objbool.c all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
objboundmeth.c all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
objcell.c all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
objclosure.c py: Rename remaining object types to be of the form mp_type_xxx. 2021-03-26 13:48:34 +11:00
objcomplex.c py/objcomplex: Add mp_obj_get_complex_maybe for use in complex bin-op. 2020-06-27 01:03:10 +10:00
objdeque.c all: Use MP_ERROR_TEXT for all error messages. 2020-04-05 15:02:06 +10:00
objdict.c extmod/modujson: Add support for dump/dumps separators keyword-argument. 2021-08-07 13:52:16 +10:00
objenumerate.c all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
objexcept.c py/objexcept: Make mp_obj_new_exception_arg1 inline. 2021-07-15 00:12:41 +10:00
objexcept.h all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
objfilter.c py: Downcase all MP_OBJ_IS_xxx macros to make a more consistent C API. 2019-02-12 14:54:51 +11:00
objfloat.c py: Rename BITS_PER_BYTE to MP_BITS_PER_BYTE. 2021-02-04 22:46:42 +11:00
objfun.c py: Mark unused arguments from bytecode decoding macros. 2021-06-25 10:58:22 +10:00
objfun.h py/objfun.h: Remove obsolete comments about entries in extra_args. 2021-11-25 23:24:40 +11:00
objgenerator.c py: Support single argument to optimised MP_OBJ_STOP_ITERATION. 2021-07-15 00:12:41 +10:00
objgenerator.h all: Use the name MicroPython consistently in comments 2017-07-31 18:35:40 +10:00
objgetitemiter.c py: Support single argument to optimised MP_OBJ_STOP_ITERATION. 2021-07-15 00:12:41 +10:00
objint.c all: Fix signed shifts and NULL access errors from -fsanitize=undefined. 2021-06-24 23:01:04 +10:00
objint.h py/modsys: Use consistent naming pattern for module-level const objects. 2020-05-28 10:02:14 +10:00
objint_longlong.c py/modsys: Use consistent naming pattern for module-level const objects. 2020-05-28 10:02:14 +10:00
objint_mpz.c py/mpz: Do sign extension in mpz_as_bytes for negative values. 2020-11-11 22:18:24 +11:00
objlist.c extmod/modujson: Add support for dump/dumps separators keyword-argument. 2021-08-07 13:52:16 +10:00
objlist.h py/obj.h: Move declaration of mp_obj_list_init to objlist.h. 2018-03-13 14:03:15 +11:00
objmap.c py: Downcase all MP_OBJ_IS_xxx macros to make a more consistent C API. 2019-02-12 14:54:51 +11:00
objmodule.c py/builtinimport: Refactor module importing. 2021-12-01 13:23:34 +11:00
objmodule.h py/builtinimport: Refactor module importing. 2021-12-01 13:23:34 +11:00
objnamedtuple.c py: Add option to compile without any error messages at all. 2021-04-27 23:51:52 +10:00
objnamedtuple.h py/objnamedtuple: Allow to reuse namedtuple basic functionality. 2017-11-20 09:30:06 +02:00
objnone.c py/obj: Add MICROPY_OBJ_IMMEDIATE_OBJS option to reduce code size. 2020-01-13 01:01:45 +11:00
objobject.c all: Use MP_ERROR_TEXT for all error messages. 2020-04-05 15:02:06 +10:00
objpolyiter.c all: Remove inclusion of internal py header files. 2017-10-04 12:37:50 +11:00
objproperty.c all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
objrange.c py: Rename remaining object types to be of the form mp_type_xxx. 2021-03-26 13:48:34 +11:00
objreversed.c py: Downcase all MP_OBJ_IS_xxx macros to make a more consistent C API. 2019-02-12 14:54:51 +11:00
objset.c py: Introduce and use mp_raise_type_arg helper. 2021-07-15 00:12:41 +10:00
objsingleton.c py/objsingleton: Use mp_generic_unary_op for singleton objects. 2019-12-27 12:53:36 +11:00
objslice.c all: Clean up error strings to use lowercase and change cannot to can't. 2020-04-13 22:19:37 +10:00
objstr.c py: Introduce and use mp_raise_type_arg helper. 2021-07-15 00:12:41 +10:00
objstr.h all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
objstringio.c all: Use MP_ERROR_TEXT for all error messages. 2020-04-05 15:02:06 +10:00
objstringio.h py/objstringio: If created from immutable object, follow copy on write policy. 2017-06-09 17:33:01 +03:00
objstrunicode.c py/mpprint: Fix length calculation for strings with precision-modifier. 2020-12-07 23:32:06 +11:00
objtuple.c extmod/modujson: Add support for dump/dumps separators keyword-argument. 2021-08-07 13:52:16 +10:00
objtuple.h all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
objtype.c py/vm: Add a fast path for LOAD_ATTR on instance types. 2021-09-16 16:02:15 +10:00
objtype.h py/runtime: Don't allocate iter buf for user-defined types. 2019-12-27 12:34:22 +11:00
objzip.c py: Downcase all MP_OBJ_IS_xxx macros to make a more consistent C API. 2019-02-12 14:54:51 +11:00
opmethods.c py: Make mp_obj_get_type() return a const ptr to mp_obj_type_t. 2020-01-09 11:25:26 +11:00
pairheap.c py/pairheap: Properly unlink node on pop and delete. 2020-03-26 01:21:04 +11:00
pairheap.h py/pairheap: Add helper function to initialise a new node. 2020-03-26 01:21:04 +11:00
parse.c py/parse: Simplify parse nodes representing a list. 2021-09-10 14:09:44 +10:00
parse.h py/parse: Pass in an mp_print_t to mp_parse_node_print. 2020-09-11 23:00:03 +10:00
parsenum.c py: Add option to compile without any error messages at all. 2021-04-27 23:51:52 +10:00
parsenum.h all: Use the name MicroPython consistently in comments 2017-07-31 18:35:40 +10:00
parsenumbase.c all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
parsenumbase.h all: Use the name MicroPython consistently in comments 2017-07-31 18:35:40 +10:00
persistentcode.c all: Rename BYTES_PER_WORD to MP_BYTES_PER_OBJ_WORD. 2021-02-04 22:46:42 +11:00
persistentcode.h all: Remove MICROPY_OPT_CACHE_MAP_LOOKUP_IN_BYTECODE. 2021-09-16 16:04:03 +10:00
profile.c all: Remove MICROPY_OPT_CACHE_MAP_LOOKUP_IN_BYTECODE. 2021-09-16 16:04:03 +10:00
profile.h all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
py.cmake py/py.cmake: Introduce MICROPY_INC_CORE as a list with core includes. 2021-04-09 13:08:35 +10:00
py.mk extmod: Add platform module. 2021-09-19 23:35:10 +10:00
pystack.c py: Introduce and use mp_raise_type_arg helper. 2021-07-15 00:12:41 +10:00
pystack.h all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
qstr.c all: Use MP_ERROR_TEXT for all error messages. 2020-04-05 15:02:06 +10:00
qstr.h py/qstr.h: Remove QSTR_FROM_STR_STATIC macro. 2021-01-30 13:40:48 +11:00
qstrdefs.h all: Add *FORMAT-OFF* in various places. 2020-02-28 10:31:07 +11:00
reader.c all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
reader.h py: Allow lexer to raise exceptions during construction. 2017-03-14 11:52:05 +11:00
repl.c py/repl: Don't read past the end of import_str. 2021-05-30 11:50:51 +10:00
repl.h all: Use the name MicroPython consistently in comments 2017-07-31 18:35:40 +10:00
ringbuf.c py/ringbuf: Add peek16 method. 2019-11-21 12:04:53 +11:00
ringbuf.h extmod/modbluetooth: Make modbluetooth event not a bitfield. 2020-06-05 14:04:20 +10:00
runtime.c py/runtime: Allow types to use both .attr and .locals_dict. 2021-11-22 12:10:35 +11:00
runtime.h py: Introduce and use mp_raise_type_arg helper. 2021-07-15 00:12:41 +10:00
runtime0.h py/nativeglue: Add new header file with native function table typedef. 2019-12-12 20:15:28 +11:00
runtime_utils.c py: mp_call_function_*_protected(): Pass-thru return value if possible. 2017-12-05 00:38:41 +02:00
scheduler.c py/mpstate: Schedule KeyboardInterrupt on main thread. 2021-06-19 09:49:00 +10:00
scope.c py/scope: Name and use id_kind_type_t. 2020-10-22 11:40:56 +02:00
scope.h py/scope: Name and use id_kind_type_t. 2020-10-22 11:40:56 +02:00
sequence.c all: Use MP_ERROR_TEXT for all error messages. 2020-04-05 15:02:06 +10:00
showbc.c py/showbc: Print unary-op string when dumping bytecode. 2021-11-19 17:05:40 +11:00
smallint.c all: Use the name MicroPython consistently in comments 2017-07-31 18:35:40 +10:00
smallint.h all: Fix signed shifts and NULL access errors from -fsanitize=undefined. 2021-06-24 23:01:04 +10:00
stackctrl.c all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
stackctrl.h py/stackctrl: Prevent unused-var warning when stack checking disabled. 2021-06-05 11:03:09 +10:00
stream.c py/stream: Remove mp_stream_errno and use system errno instead. 2020-04-27 23:58:46 +10:00
stream.h py/stream.h: Include sys/types.h to get size_t and off_t for POSIX API. 2020-03-25 01:00:52 +11:00
unicode.c all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
unicode.h py/objstr: Add check for valid UTF-8 when making a str from bytes. 2017-09-06 16:43:09 +10:00
usermod.cmake rp2: Add support for USER_C_MODULES to CMake build system. 2021-03-31 00:26:01 +11:00
vm.c py: Add wrapper macros so hot VM functions can go in fast code location. 2021-10-15 23:31:19 +11:00
vmentrytable.h py/vmentrytable: Ignore GCC -Woverride-init. 2020-10-22 11:47:36 +02:00
vstr.c all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
warning.c py: Update my copyright info on some files. 2019-02-06 00:19:00 +11:00