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Damien George d8dc918deb py/compile: Handle return/break/continue correctly in async with. 
Before this patch the context manager's __aexit__() method would not be
executed if a return/break/continue statement was used to exit an async
with block.  async with now has the same semantics as normal with.

The fix here applies purely to the compiler, and does not modify the
runtime at all. It might (eventually) be better to define new bytecode(s)
to handle async with (and maybe other async constructs) in a cleaner, more
efficient way.

One minor drawback with addressing this issue purely in the compiler is
that it wasn't possible to get 100% CPython semantics.  The thing that is
different here to CPython is that the __aexit__ method is not looked up in
the context manager until it is needed, which is after the body of the
async with statement has executed.  So if a context manager doesn't have
__aexit__ then CPython raises an exception before the async with is
executed, whereas uPy will raise it after it is executed.  Note that
__aenter__ is looked up at the beginning in uPy because it needs to be
called straightaway, so if the context manager isn't a context manager then
it'll still raise an exception at the same location as CPython.  The only
difference is if the context manager has the __aenter__ method but not the
__aexit__ method, then in that case uPy has different behaviour.  But this
is a very minor, and acceptable, difference.
 		2018-06-27 16:57:42 +10:00
..
argcheck.c py/argcheck: Remove #if guard around terse error message helper func. 2017-10-19 18:57:26 +11:00
asmarm.c py/asm*.c: Remove unnecessary check for num_locals<0 in asm entry func. 2018-02-24 23:10:20 +11:00
asmarm.h py/emitnative: Clean up asm macro names so they have dest as first arg. 2017-11-15 11:46:49 +11:00
asmbase.c py/asmbase: Revert removal of clearing of label offsets for native emit. 2017-12-08 19:07:00 +11:00
asmbase.h py/asm: Remove need for dummy_data when doing initial assembler passes. 2016-12-09 22:50:58 +11:00
asmthumb.c py/asm*.c: Remove unnecessary check for num_locals<0 in asm entry func. 2018-02-24 23:10:20 +11:00
asmthumb.h py: Refactor how native emitter code is compiled with a file per arch. 2018-04-10 15:06:47 +10:00
asmx64.c py/asm*.c: Remove unnecessary check for num_locals<0 in asm entry func. 2018-02-24 23:10:20 +11:00
asmx64.h py/emitnative: Clean up asm macro names so they have dest as first arg. 2017-11-15 11:46:49 +11:00
asmx86.c py/asm*.c: Remove unnecessary check for num_locals<0 in asm entry func. 2018-02-24 23:10:20 +11:00
asmx86.h py/asm*.c: Remove unnecessary check for num_locals<0 in asm entry func. 2018-02-24 23:10:20 +11:00
asmxtensa.c py/asm: Remove need for dummy_data when doing initial assembler passes. 2016-12-09 22:50:58 +11:00
asmxtensa.h py/emitnative: Clean up asm macro names so they have dest as first arg. 2017-11-15 11:46:49 +11:00
bc.c py/bc: Update opcode_format_table to match the bytecode. 2017-10-10 10:37:38 +11:00
bc.h all: Remove inclusion of internal py header files. 2017-10-04 12:37:50 +11:00
bc0.h py: Clean up unary and binary enum list to keep groups together. 2017-10-05 10:49:44 +11:00
binary.c py/objstr: Remove "make_qstr_if_not_already" arg from mp_obj_new_str. 2017-11-16 13:17:51 +11:00
binary.h py/binary: Change internal bytearray typecode from 0 to 1. 2017-08-17 16:19:35 +10:00
builtin.h extmod/moducryptolib: Add ucryptolib module with crypto functions. 2018-06-27 14:54:40 +10:00
builtinevex.c all: Remove inclusion of internal py header files. 2017-10-04 12:37:50 +11:00
builtinhelp.c py/builtinhelp: Change occurrence of mp_uint_t to size_t. 2018-05-02 16:50:28 +10:00
builtinimport.c py/builtinimport: Add compile-time option to disable external imports. 2018-02-20 18:00:44 +11:00
compile.c py/compile: Handle return/break/continue correctly in async with. 2018-06-27 16:57:42 +10:00
compile.h all: Use the name MicroPython consistently in comments 2017-07-31 18:35:40 +10:00
emit.h py/emit: Combine setup with/except/finally into one emit function. 2018-05-23 00:35:16 +10:00
emitbc.c py/emit: Combine setup with/except/finally into one emit function. 2018-05-23 00:35:16 +10:00
emitcommon.c py/emit: Combine name and global into one func for load/store/delete. 2018-05-23 00:22:47 +10:00
emitglue.c py/emitglue: When assigning bytecode only pass bytecode len if needed. 2018-02-14 18:41:17 +11:00
emitglue.h py/emitglue: When assigning bytecode only pass bytecode len if needed. 2018-02-14 18:41:17 +11:00
emitinlinethumb.c all: Use the name MicroPython consistently in comments 2017-07-31 18:35:40 +10:00
emitinlinextensa.c py/emitinline: Move common code for end of final pass to compiler. 2016-12-09 21:23:17 +11:00
emitnarm.c py: Refactor how native emitter code is compiled with a file per arch. 2018-04-10 15:06:47 +10:00
emitnative.c py/emit: Combine setup with/except/finally into one emit function. 2018-05-23 00:35:16 +10:00
emitnthumb.c py: Refactor how native emitter code is compiled with a file per arch. 2018-04-10 15:06:47 +10:00
emitnx64.c py: Refactor how native emitter code is compiled with a file per arch. 2018-04-10 15:06:47 +10:00
emitnx86.c py/emitnx86: Fix 32-bit x86 native emitter build by including header. 2018-05-04 20:39:16 +10:00
emitnxtensa.c py: Refactor how native emitter code is compiled with a file per arch. 2018-04-10 15:06:47 +10:00
formatfloat.c py/formatfloat: Fix case where floats could render with negative digits. 2018-03-01 17:00:02 +11:00
formatfloat.h all: Use the name MicroPython consistently in comments 2017-07-31 18:35:40 +10:00
frozenmod.c all: Use the name MicroPython consistently in comments 2017-07-31 18:35:40 +10:00
frozenmod.h all: Use the name MicroPython consistently in comments 2017-07-31 18:35:40 +10:00
gc.c py/gc: Add gc_sweep_all() function to run all remaining finalisers. 2018-06-12 11:55:29 +10:00
gc.h py/gc: Add gc_sweep_all() function to run all remaining finalisers. 2018-06-12 11:55:29 +10:00
grammar.h py/compile: Combine expr, xor_expr and and_expr into one function. 2018-06-22 17:00:29 +10:00
lexer.c py/lexer: Add support for underscores in numeric literals. 2018-06-12 12:17:43 +10:00
lexer.h all: Use the name MicroPython consistently in comments 2017-07-31 18:35:40 +10:00
makeqstrdata.py py/modbuiltins: Make built-in dir support the __dir__ special method. 2018-05-10 23:14:23 +10:00
makeqstrdefs.py py/makeqstrdefs.py: Optimise by using compiled re's so it runs faster. 2018-03-16 23:54:06 +11:00
makeversionhdr.py py: Use "GEN" consistently for describing files generated in the build. 2018-02-22 12:48:51 +11:00
malloc.c py/malloc: Remove unneeded code checking m_malloc return value. 2017-12-20 16:55:42 +11:00
map.c py/map: Don't include ordered-dict mutating code when not needed. 2017-12-19 13:37:15 +11:00
misc.h py/misc.h: Add MP_STATIC_ASSERT macro to do static assertions. 2018-05-18 23:31:00 +10:00
mkenv.mk py/mkenv.mk: Use $(PYTHON) consistently when calling Python tools. 2017-11-15 11:56:58 +11:00
mkrules.mk py/mkrules.mk: Regenerate all qstrs when config files change. 2018-06-12 13:53:43 +10:00
modarray.c all: Use the name MicroPython consistently in comments 2017-07-31 18:35:40 +10:00
modbuiltins.c py: Add checks for stream objects in print() and sys.print_exception(). 2018-06-20 15:57:10 +10:00
modcmath.c py: Change obsolete "///" comment formatting to normal comments. 2017-08-30 21:02:00 +10:00
modcollections.c py/objdeque: Implement ucollections.deque type with fixed size. 2018-02-21 22:39:25 +11:00
modgc.c py: Change obsolete "///" comment formatting to normal comments. 2017-08-30 21:02:00 +10:00
modio.c py/modio: Add uio.IOBase class to allow to define user streams. 2018-06-12 12:29:26 +10:00
modmath.c py/modmath: Convert log2 macro into a function. 2017-10-10 16:01:04 +11:00
modmicropython.c py: Don't include mp_optimise_value or opt_level() if compiler disabled. 2018-04-04 14:24:03 +10:00
modstruct.c py/modstruct: Check and prevent buffer-write overflow in struct packing. 2017-09-01 11:11:09 +10:00
modsys.c py: Add checks for stream objects in print() and sys.print_exception(). 2018-06-20 15:57:10 +10:00
modthread.c py: Introduce a Python stack for scoped allocation. 2017-12-11 13:49:09 +11:00
moduerrno.c py/moduerrno: Make list of errno codes configurable. 2017-02-22 12:58:11 +11:00
mpconfig.h extmod/moducryptolib: Optionally export MODE_* constants to Python. 2018-06-27 16:29:26 +10:00
mperrno.h py/mperrno: Define MP_EWOULDBLOCK as EWOULDBLOCK, not EAGAIN. 2018-05-01 15:53:25 +10:00
mphal.h all: Use the name MicroPython consistently in comments 2017-07-31 18:35:40 +10:00
mpprint.c py/mpprint: Fix "%x" vs "%X" regression introduced in previous commit. 2017-12-07 10:31:14 +02:00
mpprint.h all: Use the name MicroPython consistently in comments 2017-07-31 18:35:40 +10:00
mpstate.c all: Use the name MicroPython consistently in comments 2017-07-31 18:35:40 +10:00
mpstate.h extmod/uos_dupterm: Use native C stream methods on dupterm object. 2018-06-12 15:06:11 +10:00
mpthread.h all: Unify header guard usage. 2017-07-18 11:57:39 +10:00
mpz.c py/mpz: Avoid undefined behavior at integer overflow in mpz_hash. 2018-05-21 12:48:26 +10:00
mpz.h py/mpz: Simplify handling of borrow and quo adjustment in mpn_div. 2017-12-29 14:05:48 +11:00
nativeglue.c py/emit: Merge build set/slice into existing build emit function. 2018-05-23 00:23:36 +10:00
nlr.c py/nlr: Fix missing trailing characters in comments in nlr.c 2017-12-29 22:24:53 +11:00
nlr.h py/nlr: Fix nlr functions for 64bit ports built with gcc on Windows 2017-12-29 22:24:46 +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 py/nlrthumb: Fix Clang support wrt use of "return 0". 2018-04-27 15:10:42 +10:00
nlrx64.c py/nlr: Fix nlr functions for 64bit ports built with gcc on Windows 2017-12-29 22:24:46 +11:00
nlrx86.c py/nlrx86: Use naked attribute on nlr_push for gcc 8.0 and higher. 2018-05-15 11:17:28 +10:00
nlrxtensa.c py/nlr: Factor out common NLR code to macro and generic funcs in nlr.c. 2017-12-28 16:46:30 +11:00
obj.c all: Remove inclusion of internal py header files. 2017-10-04 12:37:50 +11:00
obj.h py/obj.h: Introduce a "flags" entry in mp_obj_type_t. 2018-06-08 11:48:25 +10:00
objarray.c py/objarray: Replace 0x80 with new MP_OBJ_ARRAY_TYPECODE_FLAG_RW macro. 2018-06-18 13:40:53 +10:00
objarray.h py/objarray: Replace 0x80 with new MP_OBJ_ARRAY_TYPECODE_FLAG_RW macro. 2018-06-18 13:40:53 +10:00
objattrtuple.c all: Use the name MicroPython consistently in comments 2017-07-31 18:35:40 +10:00
objbool.c all: Remove inclusion of internal py header files. 2017-10-04 12:37:50 +11:00
objboundmeth.c py: Convert all uses of alloca() to use new scoped allocation API. 2017-12-11 13:49:09 +11:00
objcell.c all: Use the name MicroPython consistently in comments 2017-07-31 18:35:40 +10:00
objclosure.c all: Use the name MicroPython consistently in comments 2017-07-31 18:35:40 +10:00
objcomplex.c all: Remove inclusion of internal py header files. 2017-10-04 12:37:50 +11:00
objdeque.c py/objdeque: Fix sign extension bug when computing len of deque object. 2018-05-11 13:44:50 +10:00
objdict.c py/objdict: Disallow possible modifications to fixed dicts. 2018-02-18 21:51:04 -06:00
objenumerate.c all: Use the name MicroPython consistently in comments 2017-07-31 18:35:40 +10:00
objexcept.c py/objexcept: Make MP_DEFINE_EXCEPTION public so ports can define excs. 2018-03-17 00:31:40 +11:00
objexcept.h py/objexcept: Make MP_DEFINE_EXCEPTION public so ports can define excs. 2018-03-17 00:31:40 +11:00
objfilter.c all: Use the name MicroPython consistently in comments 2017-07-31 18:35:40 +10:00
objfloat.c py/objfloat: Fix undefined integer behavior hashing negative zero. 2018-05-21 12:49:56 +10:00
objfun.c py/objfun: Fix variable name in DECODE_CODESTATE_SIZE() macro. 2018-05-17 11:20:06 +10:00
objfun.h all: Use the name MicroPython consistently in comments 2017-07-31 18:35:40 +10:00
objgenerator.c py/objgenerator: Protect against reentering a generator. 2018-05-22 16:54:03 +10:00
objgenerator.h all: Use the name MicroPython consistently in comments 2017-07-31 18:35:40 +10:00
objgetitemiter.c all: Remove inclusion of internal py header files. 2017-10-04 12:37:50 +11:00
objint.c py/objint: Remove unreachable code checking for int type in format func. 2018-03-02 11:01:24 +11:00
objint.h py/modbuiltins: Implement abs() by dispatching to MP_UNARY_OP_ABS. 2017-09-18 00:06:43 +03:00
objint_longlong.c py/objint: Simplify LHS arg type checking in int binary op functions. 2018-04-05 01:11:26 +10:00
objint_mpz.c py/objint: Simplify LHS arg type checking in int binary op functions. 2018-04-05 01:11:26 +10:00
objlist.c all: Use NULL instead of "" when calling mp_raise exception helpers. 2017-10-24 22:39:36 +11:00
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 all: Use the name MicroPython consistently in comments 2017-07-31 18:35:40 +10:00
objmodule.c extmod/moducryptolib: Add ucryptolib module with crypto functions. 2018-06-27 14:54:40 +10:00
objmodule.h py/objmodule: Factor common code for calling __init__ on builtin module. 2018-02-20 17:56:58 +11:00
objnamedtuple.c py/objnamedtuple: Allow to reuse namedtuple basic functionality. 2017-11-20 09:30:06 +02:00
objnamedtuple.h py/objnamedtuple: Allow to reuse namedtuple basic functionality. 2017-11-20 09:30:06 +02:00
objnone.c all: Remove inclusion of internal py header files. 2017-10-04 12:37:50 +11:00
objobject.c py/objtype: Refactor object's handling of __new__ to not create 2 objs. 2017-12-12 16:53:44 +11:00
objpolyiter.c all: Remove inclusion of internal py header files. 2017-10-04 12:37:50 +11:00
objproperty.c all: Remove inclusion of internal py header files. 2017-10-04 12:37:50 +11:00
objrange.c py/objrange: Implement (in)equality comparison between range objects. 2018-02-14 23:17:06 +11:00
objreversed.c all: Remove inclusion of internal py header files. 2017-10-04 12:37:50 +11:00
objset.c py/objset: Remove unneeded check from set_equal. 2017-12-19 14:01:19 +11:00
objsingleton.c all: Remove inclusion of internal py header files. 2017-10-04 12:37:50 +11:00
objslice.c all: Remove inclusion of internal py header files. 2017-10-04 12:37:50 +11:00
objstr.c py/objstr: In find/rfind, don't crash when end < start. 2018-04-05 16:14:17 +10:00
objstr.h py/objstr: Make mp_obj_new_str_of_type check for existing interned qstr. 2017-11-16 13:53:04 +11:00
objstringio.c py/stream: Switch stream close operation from method to ioctl. 2018-04-10 13:41:32 +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/unicode: Clean up utf8 funcs and provide non-utf8 inline versions. 2018-02-14 18:19:22 +11:00
objtuple.c all: Remove inclusion of internal py header files. 2017-10-04 12:37:50 +11:00
objtuple.h all: Convert mp_uint_t to mp_unary_op_t/mp_binary_op_t where appropriate 2017-08-29 13:16:30 +10:00
objtype.c py/objtype: Optimise instance get/set/del by skipping special accessors. 2018-06-08 12:12:08 +10:00
objtype.h py/objtype: Don't expose mp_obj_instance_attr(). 2018-06-08 11:48:25 +10:00
objzip.c all: Use the name MicroPython consistently in comments 2017-07-31 18:35:40 +10:00
opmethods.c py/runtime: Add MP_BINARY_OP_CONTAINS as reverse of MP_BINARY_OP_IN. 2017-11-24 14:48:23 +11:00
parse.c py/parse: Fix macro evaluation by avoiding empty __VA_ARGS__. 2017-12-29 13:44:26 +11:00
parse.h all: Use the name MicroPython consistently in comments 2017-07-31 18:35:40 +10:00
parsenum.c py/lexer: Add support for underscores in numeric literals. 2018-06-12 12:17:43 +10:00
parsenum.h all: Use the name MicroPython consistently in comments 2017-07-31 18:35:40 +10:00
parsenumbase.c all: Use the name MicroPython consistently in comments 2017-07-31 18:35:40 +10:00
parsenumbase.h all: Use the name MicroPython consistently in comments 2017-07-31 18:35:40 +10:00
persistentcode.c py/emitglue: When assigning bytecode only pass bytecode len if needed. 2018-02-14 18:41:17 +11:00
persistentcode.h py: Factor out persistent-code reader into separate files. 2016-11-16 18:13:50 +11:00
py.mk extmod/moducryptolib: Add ucryptolib module with crypto functions. 2018-06-27 14:54:40 +10:00
pystack.c py/pystack: Use "pystack exhausted" as error msg for out of pystack mem. 2018-02-19 00:26:14 +11:00
pystack.h py: Introduce a Python stack for scoped allocation. 2017-12-11 13:49:09 +11:00
qstr.c py/qstr: Rewrite find_qstr to make manifest that it returns a valid ptr. 2017-11-29 17:01:39 +11:00
qstr.h py/qstr: Add QSTR_TOTAL() macro to get number of qstrs. 2018-02-19 16:12:44 +11:00
qstrdefs.h py/pystack: Use "pystack exhausted" as error msg for out of pystack mem. 2018-02-19 00:26:14 +11:00
reader.c py/reader: Allow MICROPY_VFS_POSIX to work with MICROPY_READER_POSIX. 2018-06-06 14:28:23 +10:00
reader.h py: Allow lexer to raise exceptions during construction. 2017-03-14 11:52:05 +11:00
repl.c py/repl: Fix handling of unmatched brackets and unfinished quotes. 2018-05-18 15:23:02 +10:00
repl.h all: Use the name MicroPython consistently in comments 2017-07-31 18:35:40 +10:00
ringbuf.h all: Unify header guard usage. 2017-07-18 11:57:39 +10:00
runtime.c extmod/uos_dupterm: Use native C stream methods on dupterm object. 2018-06-12 15:06:11 +10:00
runtime.h py/runtime: Add mp_load_method_protected helper which catches exceptions 2018-05-10 23:00:04 +10:00
runtime0.h py/emit: Merge build set/slice into existing build emit function. 2018-05-23 00:23:36 +10:00
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: Add micropython.schedule() function and associated runtime code. 2017-03-20 15:20:26 +11:00
scope.c all: Use the name MicroPython consistently in comments 2017-07-31 18:35:40 +10:00
scope.h all: Use the name MicroPython consistently in comments 2017-07-31 18:35:40 +10:00
sequence.c all: Remove inclusion of internal py header files. 2017-10-04 12:37:50 +11:00
showbc.c py: Clean up unary and binary enum list to keep groups together. 2017-10-05 10:49:44 +11:00
smallint.c all: Use the name MicroPython consistently in comments 2017-07-31 18:35:40 +10:00
smallint.h py: Extend nan-boxing config to have 47-bit small integers. 2017-12-11 22:39:12 +11:00
stackctrl.c py/runtime: Move mp_exc_recursion_depth to runtime and rename to raise. 2017-12-11 13:49:09 +11:00
stackctrl.h all: Use the name MicroPython consistently in comments 2017-07-31 18:35:40 +10:00
stream.c py/stream: Remove stray empty line at start of file. 2018-06-20 16:26:12 +10:00
stream.h py/stream: Introduce and use efficient mp_get_stream to access stream_p. 2018-06-18 12:35:56 +10:00
unicode.c py/unicode: Clean up utf8 funcs and provide non-utf8 inline versions. 2018-02-14 18:19:22 +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
vm.c py/objtype: Don't expose mp_obj_instance_attr(). 2018-06-08 11:48:25 +10:00
vmentrytable.h py: Clean up unary and binary enum list to keep groups together. 2017-10-05 10:49:44 +11:00
vstr.c py/vstr: Raise a RuntimeError if fixed vstr buffer overflows. 2017-09-21 20:29:41 +10:00
warning.c py: Add config option to print warnings/errors to stderr. 2017-09-26 11:59:11 +10:00