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Add syntax for late-bound function defaults #618

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evhub opened this issue Nov 12, 2021 · 3 comments
Closed

Add syntax for late-bound function defaults #618

evhub opened this issue Nov 12, 2021 · 3 comments
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feature resolved
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v3.1.0

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@evhub
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evhub commented Nov 12, 2021

See: https://www.python.org/dev/peps/pep-0671/

Would need to be supported in normal and pattern-matching function definition.
@evhub evhub added the feature label Nov 12, 2021
@evhub
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evhub commented Jan 17, 2022

Currently, pattern-matching functions always use late-bound defaults, which is a bug right now, but could be turned into a feature to help support this.

@Jatinjain07Dazai
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I would love to work on it can you assign development of this feature to me

@evhub
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evhub commented Feb 25, 2024

This is now a full-fledged feature of pattern-matching functions, including support for syntax such as match def f(x, y=x) = (x, y).

@evhub evhub closed this as completed Feb 25, 2024
evhub added a commit that referenced this issue Feb 25, 2024
@evhub
Improve match def default handling
fcd1043 
Resolves   #618.
@evhub evhub added this to the v3.1.0 milestone Feb 25, 2024
@evhub evhub mentioned this issue Mar 1, 2024
Merged
evhub added a commit that referenced this issue Mar 2, 2024
@evhub
Release v3.1.0 (#829)
41ac855 
See Coconut's
[documentation](http://coconut.readthedocs.io/en/develop/DOCS.html) for
more information on all of the features listed below.

Language changes:
* #814: Changes to statement lambda scoping rules, including capturing
names introduced in the surrounding expression.
* #618: Changes to handling of pattern-matching function defaults
including support for e.g. `match def f(x, y=x) = (x, y)`.
* #809: New array concatenation implicit partials (e.g. `[. ; a]`).
* #823: New `(x := .)` implicit partial syntax (only available in
pipes).
* #807: New `lift_apart` built-in combinator.
* #813: New `(if)` operator function.
* #826 (thanks @JayXon!): Better universalization and `fmap` support for
`bytes` and `bytearray`.
* #816: Support for `xarray` to match existing `numpy`/`pandas` support.
* #817: New `to` argument to `all_equal`.
* #821 (thanks @GolfingSuccess!): Expanded implicit function application
syntax to support string literal methods.

Compiler changes:
* #799: `coconut-run` and `coconut --run` now work on packages rather
than just files.
* #812: Better formatting of Coconut exceptions.

Bugfixes:
* #810: Fixed an issue compiling certain syntax constructs in the
Coconut Jupyter kernel.
* #818, #825 (thanks @kg583, @dokutan!): Fixed parsing of different
Unicode line break characters.
* #822 (thanks @JayXon!): Fixed parsing of Unicode backward pipe
operators.
* #819, #820 (thanks @kg583!): Fixed some incompatibilities between
Python and Coconut syntax.
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