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>
Closes#869. Compared to the original pull request, an issue with a
corner case was fixed, and the branch rebased on top of current master.
Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>
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>
Closes#880. The changes compared to the pull request are:
- defn-alias and defmacro-alias are moved to contrib instead of being
fully removed.
- Minor documentation fixes, that were left in after the redundant
symbol removals.
Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>
Fixed up the documentation language here and there, related to the alias
removals in previous commits.
Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>
Since slice was renamed to cut, update some newly introduced functions
and macros that were using slice, to use cut instead.
Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>
defclass now has a new syntax:
(defclass Name [BaseList]
[property value
property value] ;; optional
(defn method [self]
self.property))
Anything after the optional property list (which will be translated to a
setv within the class context) will be added to the class body. This
allows one to have side effects and complex expressions within the class
definition.
As a side effect, defining methods is much more friendly now!
Closes#850.
Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>
The `with-decorator` special form is not the most ergonomic—this commit
introduces a new builtin `#@` reader macro that expands to an invocation
of `with-decorator`. To support this, `reader_macroexpand` is made to
also look in the default `None` namespace, in imitation of how
regular (non-reader) macros defined in hy.core are looked up. The
docstring of `hy.macros.reader` is also edited slightly for accuracy.
This in the matter of issue #856.
