Commit Graph

186 Commits

Author SHA1 Message Date
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
14fddbe6c3 Give require the same features as import (#1142)
Give `require` the same features as `import`

You can now do (require foo), (require [foo [a b c]]), (require [foo [*]]), and (require [foo :as bar]). The first and last forms get you macros named foo.a, foo.b, etc. or bar.a, bar.b, etc., respectively. The second form only gets the macros in the list.

Implements #1118 and perhaps partly addresses #277.

N.B. The new meaning of (require foo) will cause all existing code that uses macros to break. Simply replace these forms with (require [foo [*]]) to get your code working again.

There's a bit of a hack involved in the forms (require foo) or (require [foo :as bar]). When you call (foo.a ...) or (bar.a ...), Hy doesn't actually look inside modules. Instead, these (require ...) forms give the macros names that have periods in them, which happens to work fine with the way Hy finds and interprets macro calls.

* Make `require` syntax stricter and add tests

* Update documentation for `require`

* Documentation wording improvements

* Allow :as in `require` name lists
2016-11-03 09:35:58 +02:00
Kodi Arfer
108537a4e0 Allow &rest after &optional, like Python 2016-10-11 13:31:22 -07:00
timmartin
9d6e04fab0 Keyword arguments to functions are required to be strings (#1023)
See discussion in #961
2016-04-11 18:38:13 +03:00
Tim Martin
ec668b5584 In python 3.3+, generator functions always return a value 2016-01-03 11:08:41 +00:00
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
Gergely Nagy
0a942a069f Support one-arity comparison operators too
Comparison operators such as =, !=, <, >, <=, >= should support a
one-arity version too, and return true in those cases (except for !=,
which returns false).

This closes #949.

Reported-by: Matthew Egan Odendahl
Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>
2015-10-03 11:01:48 +02:00
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
b92049d119 Allow defclass to have properties/method with built-in names
To allow classes to have methods that match built-in names, yet, still
disallow them outside of defclass, keep an internal state whether
builtins are allowed in the current context.

By default, this is false. But defclass will set it to True when it
compiles its body, and set it back to the previous value when it's done
with that. We need to set back to the previous value to allow nested
defclasses to work properly.

This closes #783.

Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>
2015-08-12 08:49:24 +02:00
Gergely Nagy
9bff606ee9 Test that assigning to a builtin fails
Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>
2015-08-12 08:49:24 +02:00
Tuukka Turto
1599f29dff Merge branch 'master' into pr/886
Conflicts:
	tests/compilers/test_ast.py
2015-08-12 08:05:19 +03:00
Zack M. Davis
1b5f1f3988 merge branch 'nullify' 2015-08-11 21:51:35 -07:00
Tuukka Turto
80b2386c35 Merge branch 'master' into pr/884
Conflicts:
	tests/compilers/test_ast.py
2015-08-12 06:55:27 +03:00
Tuukka Turto
3d862d6680 Merge branch 'master' into pr/883 2015-08-12 06:50:29 +03:00
gilch
a22e2ca4cc purged null from Hy
we already have `nil`, and `null` was barely ever used.
2015-08-11 16:22:13 -06:00
Gergely Nagy
b362943365 compiler: Fix the kw argument needs value exception
Strip the \ufdd0 prefix from the keyword argument before turning it into
a string: the same representation the user entered looks better, and is
printable too, thus Python2 doesn't choke on it.

Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>
2015-08-11 10:44:42 +02:00
Ewald Grusk
e407b0a605 New test: Ensure the compiler chokes on missing keyword argument values 2015-08-11 10:44:42 +02:00
Gergely Nagy
fee7d33184
Guard against a few invalid list comprehension cases
Some valid-looking list comprehensions, such as (genexpr x []) can crash
Python 2.7. The AST we generate from these cannot be expressed in
Python, but were valid in Hy.

Added two guards to guard against this, so we raise an error instead of
crashing Python.

Closes #572, #591 and #634.

Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>
2015-08-10 15:55:11 +02:00
Gergely Nagy
d3520e5640
Trying to setv a callable should raise a nice error
When trying to setv a callable, raise an error instead of showing the
user an incredibly ugly backtrace. Closes #532.

Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>
2015-08-10 14:19:19 +02:00
Gergely Nagy
1327d58882
Add a few tests for various defn corner cases
Closes #302.

Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>
2015-08-10 13:44:11 +02:00
Gergely Nagy
439fa6eb17 core.macros: Fix a for corner case
In case for doesn't get a body, raise the appropriate, descriptive error
instead of an IndexOutOfBounds one. Also updated the failing test case.

Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>
2015-08-10 10:16:25 +02:00
gilch
66c1f38fcc remove catch in favor of except 2015-08-09 00:53:10 -06:00
gilch
e8d26f1067 remove throw in favor of raise 2015-08-09 00:52:42 -06:00
Calem Bendell
61e4b9dfed replace slice with cut 2015-08-05 13:17:24 +02:00
Zack M. Davis
8a03e922c1 AST test coverage for &kwonly; cant_compile returns exception object
Much like how `can_compile` returns the compilation result, which some
tests make use of, it may be useful for for `cant_compile` to return the
exception object that it caught, for more specific assertions.
2015-07-22 22:06:51 -07:00
Paul‮etnomailgaT‭
950c1bd41b Merge pull request #719 from unmerged/nonlocal-keyword
Added `nonlocal`. `global` takes multiple args.
2015-06-22 09:55:51 -04:00
Ryan Gonzalez
4ead84b058 Add argument destructuring 2015-04-18 12:32:03 -05:00
Adrià Garriga-Alonso
f7b5486b69 Assert now may take an optional label, like in Python 2015-02-22 17:34:19 +01:00
Zack M. Davis
0fd6ed052c move imports and operators to satisfy new version of pep8 checker
jcrocholl/pep8 (used by flake8, used in Hy's continuous integration
builds) introduced an imports-at-top-of-file check in 1.6.0 and a
line-breaks-around-binary-operators check in 1.6.2. This commit makes
nonfunctional changes to bring the Hy codebase in compliance with this
tool, fixing #764.
2015-02-16 22:21:49 -08:00
Adam Schwalm
52334c0b62 Fix error when 'let' context contains a non-symbol non-list 2014-12-18 02:15:41 -06:00
unmerged
41e5175781 Added nonlocal keyword for python3. 2014-12-14 23:14:19 +03:00
unmerged
cfa805c102 global now takes multiple arguments. 2014-12-14 23:13:44 +03:00
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
Berker Peksag
3528cc8278 Kill kwapply.
Closes #433.
2014-04-09 20:10:31 +03:00
Nicolas Dandrimont
52144820ca Add a cons object and related mechanisms
Closes: #183
2014-01-23 23:08:52 +01:00
Nicolas Dandrimont
78f6301e27 Add tests for the attribute access DSL 2014-01-09 03:35:32 +01:00
Paul Tagliamonte
eeef65b505 Change the signature of (for) and (with).
(for) is restored to clojure-like flatness.
 (with) can be used without the nested list if you don't care about the
        name.

   Tests and examples updated.
2013-12-31 13:35:31 -05:00
Bob Tolbert
faf782560c Fixing tests for new 'for' syntax 2013-12-31 09:56:03 -07:00
Bob Tolbert
765dba3e56 More updates, including from Foxboron, for errors like (for) 2013-12-31 09:56:03 -07:00
Bob Tolbert
f6160c755a Much better version of new error messages.
This version is much simpler.

At the point that the exception is raised, we don't have access to
the actual source, just the current expression. but as the
exception percolates up, we can intercept it, add the source and
the re-raise it.

Then at the final point, in the cmdline handler, we can choose to
let the entire traceback print, or just the simpler, direct error
message.

And even with the full traceback, the last bit is nicely formatted
just like the shorter, simpler message.

The error message is colored if clint is installed, but to avoid
yet another dependency, you get monochrome without clint.

I'm sure there is a better way to do the markup, the current method
is kludgy but works.

I wish there was more shared code between HyTypeError and LexException
but they are kind of different in some fundamental ways.

This doesn't work (yet) with runtime errors generated from Python,
like NameError, but I have a method that can catch NameError and turn it
into a more pleasing output.

Finally, there is no obvious way to raise HyTypeError from pure Hy code,
so methods in core/language.hy throw ugly TypeError/ValueError.
2013-12-31 09:56:03 -07:00
Paul Tagliamonte
e754a58237 Merge branch 'master' into pr/363 2013-12-31 11:41:30 -05:00
Gergely Nagy
62522a5f86 Allow get with multiple arguments
When calling get with more than two arguments, treat the rest as indexes
into the expression from the former. That is, (get foo "bar" "baz")
would translate to foo["bar"]["baz"], and so on.

This fixes #362.

Requested-by: Sean B. Palmer <sean@miscoranda.com>
Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>
2013-12-30 12:04:40 +01:00
Foxboron
d82636958b added for and with macros
Fixed up anaphoric.hy and added the tests too native_tests/__init__.py

added __init__.hy
2013-12-29 16:50:21 +01:00
Nicolas Dandrimont
b8406dd920 Bootstrap a macro error-reporting test file 2013-11-02 20:50:21 +01:00
Nicolas Dandrimont
f6aa7e953d Always import __future__.print_statement in hy code
This allows us to drop the print special-casing in the
compiler, and makes behavior consistent in Python2/3.
2013-09-22 15:31:15 +02:00
Paul Tagliamonte
b78be9a594 Jank @olasd's hack, clean up core.
The core shall from now on be only for the core language bits. Macro
 bits shall live in hy.macros and in hy.compiler. This cleans up
 garbage.
2013-07-06 14:00:11 -04:00
Paul Tagliamonte
9c28e0292d Merge branch 'master' into pr/185
Conflicts:
	hy/macros.py
	tests/compilers/test_compiler.py

Hoodoggy!
2013-05-17 11:17:51 -04:00
Paul Tagliamonte
5a1b004bfb Merge branch 'master' into pr/179 2013-05-17 11:08:30 -04:00
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
Konrad Hinsen
b7c5ff2991 Refactor test_ast.py to eliminate the lots of hy_compile(tokenize(...)) calls 2013-05-16 15:30:44 +02:00
Julien Danjou
66e5af4a82 Write a test for builds() check
Signed-off-by: Julien Danjou <julien@danjou.info>
2013-05-14 11:03:13 +02:00
Julien Danjou
4e202aa1a5 Check that compiler error are user always user friendly
Signed-off-by: Julien Danjou <julien@danjou.info>
2013-05-13 18:14:39 +02:00
Paul Tagliamonte
98134e7396 Merge branch 'master' into bugfix/paultag/fix-try-except 2013-05-08 20:22:51 -04:00
Paul Tagliamonte
066c9781c7 Merge branch 'master' into pr/170 2013-05-08 20:11:57 -04:00
Paul Tagliamonte
72461a5cdb style tweak 2013-05-08 20:07:38 -04:00
Paul Tagliamonte
058197a24f Allow returning inside a try / except. Closes #163 2013-05-08 20:00:09 -04:00
Paul Tagliamonte
ceedc69b7d Correct existing tests for future try / except work. 2013-05-08 19:58:36 -04:00
Nicolas Dandrimont
4e3f842972 Add &optional arguments.
Python doesn't really have that concept, so make them clash with &key arguments.
2013-05-08 21:11:33 +02:00
Nicolas Dandrimont
5dbf6c6ca9 Add tests for &key arguments in functions 2013-05-08 21:11:33 +02:00
Nicolas Dandrimont
772927c53d Drop the bare names that were sprinkled everywhere in the generated AST.
This closes #162

We make sure not to drop *explicitly written* bare names.
2013-05-08 18:49:07 +02:00
Julien Danjou
ad7e110af4 Implements defclass
This fixes issue #156

Signed-off-by: Julien Danjou <julien@danjou.info>
2013-05-08 12:38:57 +02:00
Nicolas Dandrimont
1e24dde153 Merge fn and lambda
We actually only generate an ast.Lambda if (lambda) was called, as a lot of code
expect ast.FunctionDefs (most notably with_decorator).

This allows empty lambdas too.

This fixes #165.
2013-05-07 20:07:15 +02:00
Julien Danjou
6948fff112 Add a first test for the compiler
Signed-off-by: Julien Danjou <julien@danjou.info>
2013-05-05 20:42:48 +02:00
Nicolas Dandrimont
3d8a3d589c Refactor compiler using a result carrying object
This object allows to coerce statements to an expression, if we need to use
them that way, which, with a lisp, is often.

This was collaborative work that has been rebased to make it bisectable.

Helped-by: Paul Tagliamonte <paultag@debian.org>
Helped-by: Julien Danjou <julien@danjou.info>
2013-05-05 20:42:48 +02:00
Julien Danjou
2ef9a0fdaf Rename decorate-with' to with-decorator'
Fixes #158

Signed-off-by: Julien Danjou <julien@danjou.info>
2013-04-28 17:14:22 +02:00
Julien Danjou
50daf1b4c8 Make temp attribute more solid and add unit test on regression
Signed-off-by: Julien Danjou <julien@danjou.info>
2013-04-24 22:36:49 +02:00
Paul Tagliamonte
ada946fca8 style cleanup 2013-04-23 19:25:02 -04:00
Paul Tagliamonte
a1cf9e50eb Merge branch 'master' into pr/141 2013-04-23 19:23:37 -04:00
John Jacobsen
8d8dd62168 Move take and drop from AST impl. in compiler.py to macros in core/bootstrap.py 2013-04-21 19:08:30 -05:00
John Jacobsen
fef571855b Added 'take' and 'drop' functions (as AST elements) 2013-04-21 15:41:20 -05:00
Paul Tagliamonte
6f7f402c19 Merge branch 'master' into pr/140
Conflicts:
	hy/compiler.py
	tests/native_tests/language.hy
2013-04-21 12:29:09 -04:00
Paul Tagliamonte
36a7f91014 Merge branch 'master' into pr/146 2013-04-21 11:03:32 -04:00
Gergely Nagy
494bf0e8ad Remove the import-as and import-from builtins
The new and improved (import) can handle all cases import-as and
import-from did, so drop the latter two from the language. To do this,
the import builtin had to be changed a little: if there's a single
import statement to return, return it as-is, otherwise return a list of
imports.

Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>
2013-04-20 16:06:32 +02:00
Julien Danjou
74ea8fe5e5 Allow fn to have no body
Signed-off-by: Julien Danjou <julien@danjou.info>
2013-04-20 05:19:58 -07:00
James King
047956c59b Clean up based on review 2013-04-19 10:36:51 -04:00
E. Anders Lannerback
18cb7203d3 Added global. Not sure if this is a good idea ...
(global foo) => global foo
2013-04-19 08:40:03 +02:00
James King
1080a457b1 Implemented &key and added tests 2013-04-18 22:27:38 -04:00
James King
70e0d88149 WIP - Added &key support 2013-04-18 17:47:08 -04:00
James King
18ed72136f Merge branch 'master' into feature/lambda-list-keyword
Conflicts:
	hy/compiler.py
	hy/lex/states.py
	hy/util.py
	tests/compilers/test_ast.py
	tests/lex/test_lex.py
2013-04-18 15:17:30 -04:00
Paul R. Tagliamonte
7b4d4fb371 Merge branch 'jd/finally' of git://github.com/jd/hy into pr-94 2013-04-14 21:57:11 -04:00
Paul R. Tagliamonte
3b3768853a Merge branch 'jd/remove-pass' of git://github.com/jd/hy into pr-122 2013-04-14 21:09:47 -04:00
Julien Danjou
bbaab58a4c Implements else' for foreach' statements
Signed-off-by: Julien Danjou <julien@danjou.info>
2013-04-15 02:50:26 +02:00
Julien Danjou
fdb6bf944c try: add support for `finally'
This fixes #75

Signed-off-by: Julien Danjou <julien@danjou.info>
2013-04-15 02:48:58 +02:00
Julien Danjou
cb20910d93 Remove `pass' from the language.
This also fixes a bug in the pass optimize missing branch where the code is
something like: [stmt, [], stmt]; in such case we want to filter out [], so
if we end up with [] we can optimize it. This fix is needed otherwise (do)
inside (do) are not properly optimized.

Signed-off-by: Julien Danjou <julien@danjou.info>
2013-04-14 13:56:44 +02:00
Paul R. Tagliamonte
f295b10f52 Updating yield. 2013-04-12 23:48:58 -04:00
Nicolas Dandrimont
30c0b25512 Add a unicode string handling test 2013-04-12 20:58:56 +02:00
James King
9ff3b128b4 Got &rest working, tests pass
Did a little house cleaning in lex states.py too and started removing
stupid print() statements.
2013-04-11 12:00:27 -04:00
James King
484a96abae WIP - Move _parse_lamba_list to the functiondef 2013-04-10 16:52:28 -04:00
Paul R. Tagliamonte
a948cf2870 Merge branch 'master' into feature/quoting 2013-04-09 19:50:25 -04:00
James King
7417789ce0 WIP - Adding Call support and FuncionDef
The test is still broken, there are print statements... this is an
ongoing WIP and will get squashed before submitted the PR.
2013-04-09 15:23:50 -04:00
James King
4d90123506 Merge branch 'develop' into feature/lambda-list-keyword 2013-04-09 15:13:25 -04:00
Julien Danjou
92eaed21e4 Merge pull request #87 from jd/jd/try
compiler: add `else' support in `try'
2013-04-09 08:23:41 -07:00
Julien Danjou
4ba6ada77b Merge pull request #92 from jd/jd/raise-0-arg
Implements (raise)
2013-04-09 08:23:09 -07:00
Julien Danjou
b13cc60075 Implements (raise)
As in Python, this allows to re-raise the last raised exception.

This fixes #86

Signed-off-by: Julien Danjou <julien@danjou.info>
2013-04-09 17:00:45 +02:00
Julien Danjou
f8131d3c36 compiler: add else' support in try'
This is a bit tricky, since we'll also have to support `finally' in the end,
I've introduced an Else statement on my own to be able to recognize it.

This fixes #74

Signed-off-by: Julien Danjou <julien@danjou.info>
2013-04-09 17:00:30 +02:00
Julien Danjou
dd90272129 except/catch: check exceptions list type
Signed-off-by: Julien Danjou <julien@danjou.info>
2013-04-09 16:56:45 +02:00
Paul R. Tagliamonte
997b32e18c Testing the behavior of (quote "foo") 2013-04-08 22:31:26 -04:00
Paul R. Tagliamonte
eeab56c2b7 Adding a symbol checker. 2013-04-08 20:24:47 -04:00
Paul R. Tagliamonte
93e4bc17eb Adding some basic testing in; more to come. 2013-04-08 20:23:51 -04:00
Julien Danjou
cd36a1d7eb Allow empty `do'
Signed-off-by: Julien Danjou <julien@danjou.info>
2013-04-08 15:17:11 +02:00