Commit Graph

70 Commits

Author SHA1 Message Date
Brandon T. Willard
fb6feaf082 Improve correspondence with Python errors and console behavior
Compiler and command-line error messages now reflect their Python counterparts.
E.g. where Python emits a `SyntaxError`, so does Hy; same for `TypeError`s.
Multiple tests have been added that check the format and type of raised
exceptions over varying command-line invocations (e.g. interactive and not).

A new exception type for `require` errors was added so that they can be treated
like normal run-time errors and not compiler errors.

The Hy REPL has been further refactored to better match the class-structured
API.  Now, different error types are handled separately and leverage more base
class-provided functionality.

Closes hylang/hy#1486.
2019-02-07 13:45:41 -05:00
Kodi Arfer
62638b44a3 Update copyright years 2019-02-07 08:57:35 -05:00
Kodi Arfer
983ea2dda2 Make (require [foo [*]]) pull in macros required by foo 2019-01-31 12:42:40 -05:00
Brandon T. Willard
b8b02c9df9 Handle empty defmain args
Closes hylang/hy#1707.
2018-11-29 14:37:52 -06:00
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
010986e8ca Implement minimal macro namespacing and add tests
This commit adds just enough namespacing to resolve a macro first in the macro's
defining module's namespace (i.e. the module assigned to the `HyASTCompiler`),
then in the namespace/module it's evaluated in.  Namespacing is accomplished by
adding a `module` attribute to `HySymbol`, so that `HyExpression`s can be
checked for this definition namespace attribute and their car symbol resolved
per the above.

As well, a couple tests have been added that cover
- the loading of module-level macros
  - e.g. that only macros defined in the `require`d module are added
- the AST generated for `require`
  - using macros loaded from modules imported via bytecode
- the non-local macro namespace resolution described above
  - a `require`d macro that uses a macro `require` exclusively in its
    module-level namespace
- and that (second-degree `require`d) macros can reference variables within
  their module-level namespaces.

Closes hylang/hy#1268, closes hylang/hy#1650, closes hylang/hy#1416.
2018-11-08 22:57:17 -06:00
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
Oskar Kvist
edbe8e3b7f Make defmacro! work with optional args 2018-06-25 11:45:23 -07:00
Kodi Arfer
e1972c535f Remove for/a, for*, and for/a* 2018-06-13 17:31:08 -07:00
Kodi Arfer
d621d7c3ab Update defmacro(/g)! tests for mangling 2018-06-11 21:05:29 -07:00
Kodi Arfer
3204a9e8a3 Streamline auto-promotion and position spoofing
Auto-promotion now occurs in only two cases: when we start the compiler and when we expand a macro. It's fully recursive so even a non-model nested in a model will be promoted.

This change fixes some regressions induced by the stricter type checks of the pattern-matching compiler.
2018-06-05 09:23:21 -07:00
Kodi Arfer
906b470499 Move test assertions into a test function 2018-05-20 14:11:35 -07:00
Kodi Arfer
a605936651 Remove &key
It's redundant with &optional.
2018-04-19 09:26:02 -07:00
Kodi Arfer
85968e70dd Add mangle and unmangle as core functions 2018-03-13 14:55:55 -04:00
Kodi Arfer
52edad28e2 Overhaul mangling rules 2018-03-13 14:55:53 -04:00
Kodi Arfer
6de7ddfee5 Update copyright years 2018-01-01 10:38:33 -05:00
Ryan Gonzalez
e0e664c030
Merge branch 'master' into letmacro 2017-11-01 09:39:18 -05:00
gilch
6bb997dbea update astor to 0.6 2017-10-31 14:13:41 -06:00
gilch
c4b3d7bcda fix gensym format to start with _ for import * 2017-09-23 23:41:37 -06:00
Kodi Arfer
97ecb0b553 Remove apply from tests 2017-07-17 13:34:42 -07:00
Kodi Arfer
801836f6c2 Remove the Python 2 yield-from macro
I moved the yield-from tests from native_macros to py3_only_tests.
2017-07-13 08:46:41 -07:00
Kodi Arfer
55986b2033 Auto-promote values to HyObjects in the compiler 2017-07-03 17:01:12 -07:00
Kodi Arfer
2eb81864df Make all files comply with license-header policy 2017-04-27 14:16:57 -07:00
Kodi Arfer
45b7a4ac9d Add bytestring literals 2017-02-19 09:04:45 +02:00
Kodi Arfer
d72abb39f1 Remove uses of let from various tests 2017-02-04 09:07:27 -08:00
Tuukka Turto
e588b4928d add defmacro! and fix macro expansion error message (#1172)
* added defmacro!

* revert #924

#924 had an error and should never have been merged in the first place. (see #903)

* put back import getargspec

Without the `formatargspec` this time.

* Give better error message on failed macro expansion

Better error messages work most of the time. In cases where there are
parameters that aren't valid in Python, error message shown is rather
ugly. But this is better than no error messages at all and such
macros with strange parameter names are rather rare.

* fix flake8 errors

* Minor English improvements
2016-12-14 18:10:46 -06:00
Kodi Arfer
ed8e37da62 Burninate the synonyms true, false, and nil
Per the straw poll in #908, as an alternative to #1147.

Now you must use `True`, `False`, and `None`, as in Python. Or just assign `true` to `True`, etc.; the old synonyms aren't reserved words anymore.
2016-11-23 18:35:17 -08:00
Kodi Arfer
0880610401 Don't sort or deduplicate the items in a HySet
Fixes #1120.

I also added hy.models._wrapper[set] so a macro can return an ordinary set in place of a HySet.
2016-09-26 09:47:04 -07:00
Ryan Gonzalez
d384580de1 Disallow &key in macros 2016-07-07 11:24:04 -05:00
Ryan Gonzalez
7ee7428870 Merge branch 'master' of https://github.com/hylang/hy into kwonly_err
Conflicts:
	docs/tutorial.rst
2015-11-14 20:40:20 -06:00
gilch
f4afb0ca7e variadic if
The `if` form now supports elif clauses.
It works like `cond` but without the implicit `do`.
The old `if` is now `if*`

variadic lif now supports "ellif" clauses.

Update if-no-waste compiler to use `if*` properly.

(Sometimes one character is all it takes.)

document if

reword truthiness
2015-10-17 19:51:03 -06:00
Ryan Gonzalez
9e5f881958 Give an error when &kwonly or &kwargs is used in a macro definition (closes #959) 2015-10-16 15:50:55 -05:00
Gergely Nagy
9f88e07e1d Drop a set of brackets from let.
This changes let to use a flat list of symbol-value pairs instead of a
vector of vectors. One side effect is that (let [[a 1] z]) is not
expressible now, and one will explicitly need to set a nil value for z,
such as: (let [a 1 z nil]).

Closes #713.

Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>
2015-10-01 10:08:04 +02:00
Gergely Nagy
8e2a892469
hy.contrib.alias: Move defn-alias and defmacro-alias here
As discussed in #880, move defn-alias and defmacro-alias to a contrib
module.

Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>
2015-08-10 09:24:48 +02:00
gilch
7d8ddd9ecb remove lisp-if / lisp-if-not in favor of lif / lif-not 2015-08-09 01:21:12 -06:00
gilch
4cdfdfbafe remove defun in favor of defn 2015-08-09 01:09:52 -06:00
gilch
66c1f38fcc remove catch in favor of except 2015-08-09 00:53:10 -06:00
Gergely Nagy
7db0fcdafb Move Botsbuildbots to contrib
Closes #678.

Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>
2015-08-04 11:59:10 +02:00
Gregor Best
509b72a799 Make (defmain ...) a clean macro 2015-06-15 21:11:48 +02:00
Christopher Allan Webber
917ba9fce5 Test to ensure exception handling in yield-from works right 2014-11-20 20:48:15 -06:00
Christopher Allan Webber
86d8f69ef7 Fix yield-from test indentation
Indentation was inconsistent with our usual indentation style.
2014-11-20 20:48:15 -06:00
Paul Tagliamonte
602f392fe7 Implement yield-from in Python 2.x as a macro
And who said you can't teach an old dog new tricks.

  ... but at the same time, drop Python 3.2 for not knowing this new
  trick.
2014-11-20 20:48:15 -06:00
Tianon Gravi
96410f506e Add a dedicated lisp-if-not / lif-not macro
This is in parallel to `if` / `if-not` (so not without precedent). :)
2014-11-06 12:44:15 -07:00
Gergely Nagy
3f01ed5014 Add a Botsbuildbots function
A tribute to Portal 2, this function will return an infinite list of the
contents of the AUTHORS file on GitHub master (assuming requests is
installed). Except, the macro does this, the function never gets called,
it is purely there for tribute reasons.

Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>
2014-09-05 12:37:51 +02:00
Nicolas Dandrimont
aafb16d69f Merge branch 'master' into pr/584 2014-08-18 18:18:25 +02:00
Allison Kaptur
b56a03750f revert yield-from test
Yield-from was introduced in 3.3, so we have to catch the compile error that's raise in 3.2. :(
2014-06-09 16:33:32 -04:00
John MacKenzie
15ad6cb998 defmacro/g! and HyObject#startswith
Currently, defmacro/g! doesn't respond well when it comes across a
HyObject that doesn't respond to the instance method startswith (e.g.
HyInteger, HyFloat, etc.). This updates defmacro/g! to be a little
safer when searching for the gensyms it needs to create.
2014-05-15 01:51:38 +00:00
Allison Kaptur
caa53fb095 Tests for explicit exception chaining
This also breaks out the PY3 only tests into their own file.  We need to do this because raise from is a syntax error in PY2, so we can't rely on the previous hack of catching a HyCompileError - it would compile fine through Hy and then be a syntax error in Python.
2014-05-01 16:33:10 -04:00
Paul Tagliamonte
217f3ad65f Merge branch 'master' into pr/515 2014-04-10 22:52:41 -04:00
Christopher Allan Webber
d5194f23fa Properly add yield-from, using python's real "yield from".
The yield-from that existed previously wasn't actually implementing the
full complexity of "yield from":

  http://legacy.python.org/dev/peps/pep-0380/#formal-semantics

... this includes passing along errors, and many other things.

Also removes the yield-from backport macro, since it does not seem
possible at present to conditionally build macros.

Thus, there is no longer yield-from on pre-python-3.3 systems.

Includes updated docs and tests to reflect all this.
2014-04-10 14:07:49 -05:00