Clean up NEWS

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Kodi Arfer 2018-07-21 11:04:07 -07:00
parent 9af738e56d
commit 4020f3dd56
1 changed files with 41 additions and 42 deletions

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.. default-role:: code .. default-role:: code
Unreleased 0.15.0
============================== ==============================
Removals Removals
------------------------------ ------------------------------
* Dotted lists, `HyCons`, `cons`, `cons?`, and `list*` have been removed. * Dotted lists, `HyCons`, `cons`, `cons?`, and `list*` have been
These were redundant with Python's built-in data structures and Hy's most removed. These were redundant with Python's built-in data structures
common model types (`HyExpression`, `HyList`, etc.). and Hy's most common model types (`HyExpression`, `HyList`, etc.).
* `&key` is no longer special in lambda lists. Use `&optional` instead. * `&key` is no longer special in lambda lists. Use `&optional` instead.
* Tuple unpacking is no longer built into special forms for function * Lambda lists can no longer unpack tuples.
definition (`fn` etc.) * `ap-pipe` and `ap-compose` have been removed. Use threading macros and
* Macros `ap-pipe` and `ap-compose` have been removed. `comp` instead.
Anaphoric macros do not work well with point-free style programming,
in which case both threading macros and `comp` are more adequate.
* `for/a` has been removed. Use `(for [:async ...] ...)` instead. * `for/a` has been removed. Use `(for [:async ...] ...)` instead.
* `(except)` is no longer allowed. Use `(except [])` instead.
* `(import [foo])` is no longer allowed. Use `(import foo)` instead.
Other Breaking Changes Other Breaking Changes
------------------------------ ------------------------------
@ -22,58 +22,57 @@ Other Breaking Changes
This means you can no longer use alternative punctuation in place of This means you can no longer use alternative punctuation in place of
square brackets in special forms (e.g. `(fn (x) ...)` instead of square brackets in special forms (e.g. `(fn (x) ...)` instead of
the standard `(fn [x] ...)`). the standard `(fn [x] ...)`).
* Mangling rules have been overhauled, such that mangled names * Mangling rules have been overhauled; now, mangled names are
are always legal Python identifiers always legal Python identifiers.
* `_` and `-` are now equivalent even as single-character names * `_` and `-` are now equivalent, even as single-character names.
* The REPL history variable `_` is now `*1` * The REPL history variable `_` is now `*1`.
* Non-shadow unary `=`, `is`, `<`, etc. now evaluate their argument * Non-shadow unary `=`, `is`, `<`, etc. now evaluate their argument
instead of ignoring it. This change increases consistency a bit instead of ignoring it.
and makes accidental unary uses easier to notice.
* `list-comp`, `set-comp`, `dict-comp`, and `genexpr` have been replaced * `list-comp`, `set-comp`, `dict-comp`, and `genexpr` have been replaced
by `lfor`, `sfor`, `dfor`, and `gfor`, respectively, which use a new by `lfor`, `sfor`, `dfor`, and `gfor`, respectively, which use a new
syntax and have additional features. All Python comprehensions can now syntax and have additional features. All Python comprehensions can now
be written in Hy. be written in Hy.
* `hy-repr` uses registered functions instead of methods
* `HyKeyword` no longer inherits from the string type and has been
made into its own object type.
* `HySymbol` no longer inherits from `HyString`.
* `(except)` is no longer allowed. Use `(except [])` instead.
* `(import [foo])` is no longer allowed. Use `(import foo)` instead.
* `&`-parameters in lambda lists must now appear in the same order that * `&`-parameters in lambda lists must now appear in the same order that
Python expects. Python expects.
* Literal keywords now evaluate to themselves, and `HyKeyword` no longer
inherits from a Python string type
* `HySymbol` no longer inherits from `HyString`.
New Features New Features
------------------------------ ------------------------------
* Python 3.7 is now supported * Python 3.7 is now supported.
* Added `mangle` and `unmangle` as core functions * `while` and `for` are allowed to have empty bodies.
* More REPL history result variables: `*2`, `*3`. Added last REPL error * `for` supports the various new clause types offered by `lfor`.
variable: `*e` * `defclass` in Python 3 supports specifying metaclasses and other
* `defclass` in Python 3 now supports specifying metaclasses and other keyword arguments.
keyword arguments * Added `mangle` and `unmangle` as core functions.
* Added a command-line option `-E` per CPython * Added more REPL history variables: `*2` and `*3`.
* `while` and `for` are allowed to have empty bodies * Added a REPL variable holding the last exception: `*e`.
* `for` supports the various new clause types offered by `lfor` * Added a command-line option `-E` per CPython.
* Added a new module ``hy.model_patterns`` * Added a new module `hy.model_patterns`.
* `defmacro!` now allows optional args
Bug Fixes Bug Fixes
------------------------------ ------------------------------
* `hy2py` should now output legal Python code equivalent to the input Hy * `hy2py` should now output legal Python code equivalent to the input Hy
code in all cases, modulo some outstanding bugs in `astor` code in all cases.
* Fix `(return)` so it works correctly to exit a Python 2 generator * Fixed `(return)` so it can exit a Python 2 generator.
* Fixed a case where `->` and `->>` duplicated an argument * Fixed a case where `->` and `->>` duplicated an argument.
* Fixed bugs that caused `defclass` to drop statements or crash * Fixed bugs that caused `defclass` to drop statements or crash.
* Fixed a REPL crash caused by illegle unicode escape string inputs * Fixed a REPL crash caused by illegal backslash escapes.
* `NaN` can no longer create an infinite loop during macro-expansion * `NaN` can no longer create an infinite loop during macro-expansion.
* Fixed a bug that caused `try` to drop expressions * Fixed a bug that caused `try` to drop expressions.
* Fixed a bug where the compiler didn't properly compile `unquote-splice` * The compiler now properly recognizes `unquote-splice`.
* Trying to import a dotted name is now a syntax error, as in Python * Trying to import a dotted name is now a syntax error, as in Python.
* `defmacro!` now allows optional arguments.
* Fixed handling of variables that are bound multiple times in a single
`let`.
Misc. Improvements Misc. Improvements
---------------------------- ----------------------------
* `hy-repr` supports more standard types * `hy-repr` uses registered functions instead of methods.
* `hy-repr` supports more standard types.
0.14.0 0.14.0
============================== ==============================