Commit Graph

32 Commits

Author SHA1 Message Date
Brandon T. Willard
51c7efe6e8 Retain compiled source and file information for exceptions
This commit refactors the exception/error classes and their handling.
It also retains Hy source strings and their originating file information, when
available, all throughout the core parser and compiler functions.

As well, with these changes, calling code is no longer responsible for providing
source and file details to exceptions,

Closes hylang/hy#657.
2019-02-07 13:43:58 -05:00
Kodi Arfer
62638b44a3 Update copyright years 2019-02-07 08:57:35 -05:00
Brandon T. Willard
86fda31ab1 Move compilation and parsing functions out of importer.py
Functions and variables relating to compilation and parsing have been moved to
`compiler.py` and `lex/__init__.py`, respectively.  Those functions are
  - `hy_parse` from `hy.importer` to `hy.lex`
  - `hy_eval`, `ast_compile`, and `calling_module` from `hy.importer` to
  `hy.compiler`

Closes hylang/hy#1695.
2018-11-28 14:12:33 -05:00
Brandon T. Willard
144a7fa240 Produce Python AST for require statements and skip self requires
Closes hylang/hy#1211.
2018-11-08 22:57:17 -06:00
Brandon T. Willard
a9763b34cf Fix sys.modules for failed imports in Python 2.7
Newly imported modules with compile and/or run-time errors were not being
removed from `sys.modules`.  This commit modifies the Python 2.7 loader so that
it follows Python's failed-initial-import logic and removes the module from
`sys.modules`.
2018-09-29 20:57:28 -05:00
Brandon T. Willard
5d325a5156 Add a test for module docstrings 2018-08-27 01:02:29 -05:00
Brandon T. Willard
bbc66d0042 Add test for shadowed-basename imports
This test ensures that Hy will load a `.hy` instead of a `.py` counterpart.
2018-08-26 00:27:36 -05:00
Brandon T. Willard
1da29417fe Add test for circular imports
Closes hylang/hy#1134.
2018-08-26 00:27:36 -05:00
Brandon T. Willard
c022abc831 Add Python cmdline bytecode option and set sys.executable
Closes hylang/hy#459.
2018-08-26 00:17:12 -05:00
Brandon T. Willard
4839acadf7 Add tests for importing __main__.hy files
Closes hylang/hy#1466.
2018-08-25 22:50:45 -05:00
Brandon T. Willard
e9e7171b56 Add module reloading tests 2018-08-25 22:50:45 -05:00
Brandon T. Willard
87a5b117a1 Implement new importer using PEP-302 semantics
Python 3.x is patched in a way that integrates `.hy` source files into
Pythons default `importlib` machinery.  In Python 2.7, a PEP-302 "importer"
and "loader" is implemented according to the standard `import` logic (via
`pkgutil` and later pure-Python `imp` package code).

In both cases, the entry-point for the loaders is through `sys.path_hooks` only.
As well, the import semantics have been updated all throughout to utilize
`importlib` and follow aspects of PEP-420.  This, along with some light
patches, should allow for basic use of `runpy`, `py_compile` and `reload`.

In all cases, if a `.hy` file is shadowed by a `.py`, Hy will silently use
`.hy`.
2018-08-25 22:50:38 -05:00
Kodi Arfer
cf0dafef9b Update uses of the old comprehension forms 2018-06-13 17:31:08 -07:00
Kodi Arfer
87aced2370 Don't let HyExpression etc. inherit from HyList
This means the compiler no longer allows e.g. `(fn (x) ...)` in place of `(fn [x] ...)`.
2018-04-29 19:17:47 -07:00
Simon Gomizelj
fa54884131 Fix unit tests when run with PYTHONDONTWRITEBYTECODE
When set, it will conflict with any tests that generate bytecode
because they don't expect it to be set.

Fixable by sanitize the environment before forking, but we can't do
anything about import tests.

This is a pipenv default, and possibly a sane flag to set while doing
Hy development, so lets not let it be a hazard for developers to trip
over.
2018-04-14 12:12:01 -07:00
Kodi Arfer
6de7ddfee5 Update copyright years 2018-01-01 10:38:33 -05:00
Jordan Danford
c67b8bccb9 Expose read, read_str, and eval in Python
- Expose `read`, `read_str`, and `eval` in Python
- Add string evaluation example to interop section of docs
- Add test for `eval`
- Explain `eof` keyword argument in `read` docstring
2017-08-05 17:29:15 -07:00
Kodi Arfer
2eb81864df Make all files comply with license-header policy 2017-04-27 14:16:57 -07:00
Kodi Arfer
2b11b9be20 Automatically read and write bytecode
Importing or executing a Hy file now loads the byte-compiled version if it exists and is up to date, and if not, the source is byte-compiled after it's parsed.

This change can speed up Hy a lot. Here are some examples comparing run times of the current master (491b474e) to this commit, on my laptop with Python 3.6:

- `nosetests --exclude='test_bin'` goes from 3.8 s to 0.7 s (a 5-fold speedup)
- `hy -c '(print "hello world")` goes from 0.47 s to 0.20 s (a 2-fold speedup)
- Rogue TV's startup goes from 3.6 s to 0.4 s (a 9-fold speedup)

Accompanying changes include:

- `setup.py` now creates and installs bytecode for `hy.core`, `hy.contrib`, and `hy.extra`.
- The `hyc` command under Python 3 now creates bytecode in `__pycache__`, as usual for Python 3, instead of putting the `.pyc` right next to the source file like Python 2 does.

I've removed a test of `hy.extra.anaphoric.a-if` that triggers #1268 when the test file is byte-compiled and then hits some weird `macroexpand` bug or something when I try to work around that—Nose crashes when trying to produce an error message, and I can't seem to replicate the bug without Nose.
2017-04-14 13:38:33 -07:00
Kodi Arfer
18acfe6495 Revert the extension of with-decorator to setv
This is no longer necessary now that `defn` always produces a `FunctionDef`.

To compensate, I've made small edits to two contrib modules and reverted a small test change.
2017-04-13 06:36:00 +03:00
Kodi Arfer
e4a7b317e1 Make fn work like lambda and remove lambda (#1228)
* with-decorator: Allow a `setv` form as the form to be decorated

This feature is of dubious value by itself, but it's necessary to allow `defn` to create a lambda instead of a `def`.

* Make `fn` work the same as `lambda`

That is, allow it to generate a `lambda` instead of a `def` statement if the function body is just an expression.

I've removed two uses of with_decorator in hy.compiler because they'd require adding another case to HyASTCompiler.compile_decorate_expression and they have no ultimate effect, anyway.

In a few tests, I've added a meaningless statement in `fn` bodies to force generation of a `def`.

I've removed `test_fn_compiler_empty_function` rather than rewrite it because it seems like a pain to maintain and not very useful.

* Remove `lambda`, now that `fn` does the same thing
2017-02-22 17:36:52 -06:00
Kodi Arfer
397fa80380 Revert "Modernized." (#1085) (#1188)
This reverts commit 13b484ce46 and fixes #1183.
2016-12-27 09:09:58 -06:00
Elf M. Sternberg
13b484ce46 Modernized. 2016-12-20 10:54:11 +02:00
Gergely Nagy
6c846a24b1
hy/compiler.py: import only handles HySymbol and HyList, bail on others
When (import) encounters anything but a HySymbol or HyList, raise an
exception, as that is not valid in Hy. Previously, anything other than a
HySymbol or HyList was simply ignored, turning that particular import
into a no-op, which was both wrong and confusing.

Reported-by: Richard Parsons <richard.lee.parsons@gmail.com>
Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>
2014-02-11 17:29:50 +01:00
Nicolas Dandrimont
1cb8db1cb2 Fix flake error 2013-07-06 20:39:02 +02:00
Morten Linderud
e4ae9880f4 Don't leave cruft around in sys.modules when an import fails.
Closes: #214, #225

Squashed from a bunch of commits by @olasd
2013-07-06 20:37:44 +02:00
Konrad Hinsen
269da19d76 Make macros module-specific.
A macro is available in the module where it was defined and
in any module that does a require of the defining module.
Only macros defined in hy.core are globally available.
Fixes #181
2013-05-16 15:34:14 +02:00
Julien Danjou
07e99dbd33 importer: doc update, MetaImport refactor
Signed-off-by: Julien Danjou <julien@danjou.info>
2013-04-20 22:11:53 +02:00
Julien Danjou
78133500cb Fix flake8 errors in tests
Signed-off-by: Julien Danjou <julien@danjou.info>
2013-04-06 21:22:35 +02:00
Paul R. Tagliamonte
b077af9620 more tests 2013-04-01 22:13:45 -04:00
Paul R. Tagliamonte
81d6a6515b adding better native testing 2013-03-05 22:15:45 -05:00
Paul R. Tagliamonte
9e16fb4ca0 Very broken. 2013-03-03 19:40:46 -05:00