suspect-devices/circuitpython/py/compile.c, branch v1.4.5 CircuitPython - a Python implementation for teaching coding with microcontrollers https://git.suspectdevices.com/suspect-devices/circuitpython/atom?h=v1.4.5 2015-07-29T22:16:01+00:00 py/compile: Give more precise line number for compile errors. 2015-07-29T22:16:01+00:00 Damien George damien.p.george@gmail.com 2015-07-29T22:16:01+00:00 urn:sha1:cfc4c338015cb65a35228706c44485dd57ec238e Previous to this patch there were some cases where line numbers for errors were 0 (unknown). Now the compiler attempts to give a better line number where possible, in some cases giving the line number of the closest statement, and other cases the line number of the inner-most scope of the error (eg the line number of the start of the function). This helps to give good (and sometimes exact) line numbers for ViperTypeError exceptions. This patch also makes sure that the first compile error (eg SyntaxError) that is encountered is reported (previously it was the last one that was reported). py: For viper compile errors, add traceback with function and filename. 2015-07-27T21:20:00+00:00 Damien George damien.p.george@gmail.com 2015-07-27T21:20:00+00:00 urn:sha1:84d59c28738b8f84c0581de4f6bba01c1f1e40ef ViperTypeError now includes filename and function name where the error occurred. The line number is the line number of the start of the function definition, which is the best that can be done without a lot more work. Partially addresses issue #1381. py: Remove mp_load_const_bytes and instead load precreated bytes object. 2015-06-25T14:42:13+00:00 Damien George damien.p.george@gmail.com 2015-06-25T14:42:13+00:00 urn:sha1:59fba2d6ea31c134c9c0b88dc73cd25b236f167c Previous to this patch each time a bytes object was referenced a new instance (with the same data) was created. With this patch a single bytes object is created in the compiler and is loaded directly at execute time as a true constant (similar to loading bignum and float objects). This saves on allocating RAM and means that bytes objects can now be used when the memory manager is locked (eg in interrupts). The MP_BC_LOAD_CONST_BYTES bytecode was removed as part of this. Generated bytecode is slightly larger due to storing a pointer to the bytes object instead of the qstr identifier. Code size is reduced by about 60 bytes on Thumb2 architectures. py: Make viper codegen raise proper exception (ViperTypeError) on error. 2015-04-20T13:29:31+00:00 Damien George damien.p.george@gmail.com 2015-04-20T13:29:31+00:00 urn:sha1:c8b60f013b9d624a74ad502460f2bc7d00c39644 This fixes a long standing problem that viper code generation gave terrible error messages, and actually no errors on pyboard where assertions are disabled. Now all compile-time errors are raised as proper Python exceptions, and are of type ViperTypeError. Addresses issue #940. py: Remove old debugging printf's in compile.c. 2015-04-11T20:52:27+00:00 Damien George damien.p.george@gmail.com 2015-04-11T20:52:27+00:00 urn:sha1:55fe92bb8f26d93015f87ceff2ac657a135b8ee4 py: Provide typedefs for function types instead of writing them inline. 2015-04-09T15:31:53+00:00 Damien George damien.p.george@gmail.com 2015-04-09T15:31:53+00:00 urn:sha1:91bc32dc169560d0faf7cba177c3c9cd6b1f88b7 py: Adjust some spaces in code style/format, purely for consistency. 2015-04-09T15:29:54+00:00 Damien George damien.p.george@gmail.com 2015-04-09T15:29:54+00:00 urn:sha1:4dea922610c8ea6af285cd49b0a531d4941d820f py, compiler: When just bytecode, make explicit calls instead of table. 2015-03-26T16:52:45+00:00 Damien George damien.p.george@gmail.com 2015-03-26T16:44:14+00:00 urn:sha1:4112590a602fa11b4d9a3df3ed5c55df56c0dc62 When just the bytecode emitter is needed there is no need to have a dynamic method table for the emitter back-end, and we can instead directly call the mp_emit_bc_XXX functions. This gives a significant reduction in code size and a very slight performance boost for the compiler. This patch saves 1160 bytes code on Thumb2 and 972 bytes on x86, when native emitters are disabled. Overall savings in code over the last 3 commits are: bare-arm: 1664 bytes. minimal: 2136 bytes. stmhal: 584 bytes (it has native emitter enabled). cc3200: 1736 bytes. py, compiler: Remove emit_pass1 code, using emit_bc to do its job. 2015-03-26T16:52:45+00:00 Damien George damien.p.george@gmail.com 2015-03-26T15:49:53+00:00 urn:sha1:a210c774f9cfbcde284f5b8a63442b4d6da1ae5b First pass for the compiler is computing the scope (eg if an identifier is local or not) and originally had an entire table of methods dedicated to this, most of which did nothing. With changes from previous commit, this set of methods can be removed and the methods from the bytecode emitter used instead, with very little modification -- this is what is done in this commit. This factoring has little to no impact on the speed of the compiler (tested by compiling 3763 Python scripts and timing it). This factoring reduces code size by about 270-300 bytes on Thumb2 archs, and 400 bytes on x86. py, compiler: Refactor load/store/delete_id logic to reduce code size. 2015-03-26T16:52:45+00:00 Damien George damien.p.george@gmail.com 2015-03-26T14:42:40+00:00 urn:sha1:542bd6b4a1ead90fde42f24d01c82580f9d048de Saves around 230 bytes on Thumb2 and 750 bytes on x86.