Commit Graph

139 Commits

Author SHA1 Message Date
Damien George 3aaabd11a0 Merge branch 'keep-strings-uninterned' of github.com:pfalcon/micropython into pfalcon-keep-strings-uninterned
Conflicts:
	py/parse.c
2014-05-25 13:19:31 +01:00
Damien George 58ebde4664 Tidy up some configuration options.
MP_ALLOC_* -> MICROPY_ALLOC_*
MICROPY_PATH_MAX -> MICROPY_ALLOC_PATH_MAX
MICROPY_ENABLE_REPL_HELPERS -> MICROPY_HELPER_REPL
MICROPY_ENABLE_LEXER_UNIX -> MICROPY_HELPER_LEXER_UNIX
MICROPY_EXTRA_* -> MICROPY_PORT_*

See issue #35.
2014-05-21 20:32:59 +01:00
Damien George 1b82e9af5c py: Improve handling of memory error in parser.
Parser shouldn't raise exceptions, so needs to check when memory
allocation fails.  This patch does that for the initial set up of the
parser state.

Also, we now put the parser object on the stack.  It's small enough to
go there instead of on the heap.

This partially addresses issue #558.
2014-05-10 17:36:41 +01:00
Paul Sokolovsky 9e76b1181b Draft approach towards resolving https://github.com/micropython/micropython/issues/560#issuecomment-42213955 2014-05-08 22:43:46 +03:00
Damien George 93afa230a4 py, parser: Add commented-out code to discard doc strings.
Doesn't help with RAM reduction because doc strings are interned as soon
as they are encountered, which is too soon to do any optimisations on
them.
2014-05-06 21:44:11 +01:00
Damien George 66e18f04d8 py: Turn down amount of RAM parser and compiler use.
There are 2 locations in parser, and 1 in compiler, where memory
allocation is not precise.  In the parser it's the rule stack and result
stack, in the compiler it's the array for the identifiers in the current
scope.  All other mallocs are exact (ie they don't allocate more than is
needed).

This patch adds tuning options (MP_ALLOC_*) to mpconfig.h for these 3
inexact allocations.

The inexact allocations in the parser should actually be close to
logarithmic: you need an exponentially larger script (absent pathological
cases) to use up more room on the rule and result stacks.  As such, the
default allocation policy for these is now to start with a modest sized
stack, but grow only in small increments.

For the identifier arrays in the compiler, these now start out quite
small (4 entries, since most functions don't have that many ids), and
grow incrementally by 6 (since if you have more ids than 4, you probably
have quite a few more, but it wouldn't be exponentially more).

Partially addresses issue #560.
2014-05-05 13:19:03 +01:00
Damien George 04b9147e15 Add license header to (almost) all files.
Blanket wide to all .c and .h files.  Some files originating from ST are
difficult to deal with (license wise) so it was left out of those.

Also merged modpyb.h, modos.h, modstm.h and modtime.h in stmhal/.
2014-05-03 23:27:38 +01:00
Damien George 58ba4c3b4c py: Check explicitly for memory allocation failure in parser.
Previously, a failed malloc/realloc would throw an exception, which was
not caught.  I think it's better to keep the parser free from NLR
(exception throwing), hence this patch.
2014-04-10 14:27:31 +00:00
xbe efe3422394 py: Clean up includes.
Remove unnecessary includes. Add includes that improve portability.
2014-03-17 02:43:40 -07:00
Damien George 06201ff3d6 py: Implement bit-shift and not operations for mpz.
Implement not, shl and shr in mpz library.  Add function to create mpzs
on the stack, used for memory efficiency when rhs is a small int.
Factor out code to parse base-prefix of number into a dedicated function.
2014-03-01 19:50:50 +00:00
Paul Sokolovsky 56e5ef203b parse: Refactor parse node encoding to support full range of small ints.
Based on suggestion by @dpgeorge at
https://github.com/micropython/micropython/pull/313
2014-02-22 16:39:45 +02:00
Paul Sokolovsky bbf0e2fe12 parse: Note that fact that parser's small ints are different than VM small int.
Specifically, VM's small ints are 31 bit, while parser's only 28. There's already
MP_OBJ_FITS_SMALL_INT(), so, for clarity, rename MP_FIT_SMALL_INT() to
MP_PARSE_FITS_SMALL_INT().
2014-02-21 03:27:09 +02:00
Damien George c5966128c7 Implement proper exception type hierarchy.
Each built-in exception is now a type, with base type BaseException.
C exceptions are created by passing a pointer to the exception type to
make an instance of.  When raising an exception from the VM, an
instance is created automatically if an exception type is raised (as
opposed to an exception instance).

Exception matching (RT_BINARY_OP_EXCEPTION_MATCH) is now proper.

Handling of parse error changed to match new exceptions.

mp_const_type renamed to mp_type_type for consistency.
2014-02-15 16:10:44 +00:00
Paul Sokolovsky 520e2f58a5 Replace global "static" -> "STATIC", to allow "analysis builds". Part 2. 2014-02-12 18:31:30 +02:00
Damien George 08d075592f py: Fix bug with LOAD_METHOD; fix int->machine_int_t for small int.
LOAD_METHOD bug was: emitbc did not correctly calculate the amount of
stack usage for a LOAD_METHOD operation.

small int bug was: int was being used to pass small ints, when it should
have been machine_int_t.
2014-01-29 18:58:52 +00:00
Damien George b829b5caec Implement mp_parse_node_free; print properly repr(string). 2014-01-25 13:51:19 +00:00
Paul Sokolovsky aee2ba70de Add parse_node_free_struct() and use it to free parse tree after compilation.
TODO: Check lexer/parse/compile error path for leaks too.
2014-01-25 02:11:59 +02:00
Damien George 00208ce194 py: Change macro var args in parser to be C99 compliant. 2014-01-23 00:00:53 +00:00
Damien George 55baff4c9b Revamp qstrs: they now include length and hash.
Can now have null bytes in strings.  Can define ROM qstrs per port using
qstrdefsport.h
2014-01-21 21:40:13 +00:00
Damien George cbd2f7482c py: Add module/function/class name to exceptions.
Exceptions know source file, line and block name.

Also tidy up some debug printing functions and provide a global
flag to enable/disable them.
2014-01-19 11:48:48 +00:00
Damien George 08335004cf Add source file name and line number to error messages.
Byte code has a map from byte-code offset to source-code line number,
used to give better error messages.
2014-01-18 23:24:36 +00:00
Damien George d02c6d8962 Implement eval. 2014-01-15 22:14:03 +00:00
Damien George 9528cd66d7 Convert parse errors to exceptions.
Parser no longer prints an error, but instead returns an exception ID
and message.
2014-01-15 21:23:31 +00:00
Paul Sokolovsky 80f60e1aee Parse long Python ints properly.
Long int is something which doesn't fit into SMALL_INT partion of
machine_int_t. But it's also something which doesn't fit into
machine_int_t in the first place.
2014-01-12 22:04:21 +02:00
Damien George 69a818d418 py: Improve memory management for parser; add lexer error for bad line cont. 2014-01-12 13:55:24 +00:00
Damien George 8cc96a35e5 Put unicode functions in unicode.c, and tidy their names. 2013-12-30 18:23:50 +00:00
Damien 732407f1bf Change memory allocation API to require size for free and realloc. 2013-12-29 19:33:23 +00:00
Damien dd12d1378f Parse upper-case hex numbers correctly. 2013-12-29 13:03:49 +00:00
Damien d99b05282d Change object representation from 1 big union to individual structs.
A big change.  Micro Python objects are allocated as individual structs
with the first element being a pointer to the type information (which
is itself an object).  This scheme follows CPython.  Much more flexible,
not necessarily slower, uses same heap memory, and can allocate objects
statically.

Also change name prefix, from py_ to mp_ (mp for Micro Python).
2013-12-21 18:17:45 +00:00
Damien 7410e440ab Add basic complex number support. 2013-11-02 19:47:57 +00:00
Damien df4b4f31ef Make grammar rules const so the go in .text section. 2013-10-19 18:28:01 +01:00
Damien 5ac1b2efbd Implement REPL. 2013-10-18 19:58:12 +01:00
Damien 0efb3a1b66 Tidy up SMALL_INT optimisations and CPython compatibility. 2013-10-12 16:16:56 +01:00
Damien c025ebb2dc Separate out mpy core and unix version. 2013-10-12 14:30:21 +01:00
Damien 91d387de7d Improve indent/dedent error checking and reporting. 2013-10-09 15:09:52 +01:00
Damien b14de21fc8 Optimise typedargslist_name to not create a node if just an id. 2013-10-06 00:28:28 +01:00
Damien 5fa5ae40be Make range of small int 24 bits. 2013-10-06 00:13:15 +01:00
Damien 826005c60b Add support for inline thumb assembly. 2013-10-05 23:17:28 +01:00
Damien 429d71943d Initial commit. 2013-10-04 19:53:11 +01:00