[Issue 7176] Lambda => syntax for function and methods too

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=7176

Dlang Bot <dlang-bot at dlang.rocks> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #22 from Dlang Bot <dlang-bot at dlang.rocks> ---
dlang/dmd pull request #11833 "Implement shortened methods with => syntax" was
merged into master:

- e6850f8a241192e24869f9b7ad608b52706e1aa5 by Nicholas Lindsay Wilson:
  Fix issue 7176: Implement shortened methods with => syntax

  For function literals, D offers a short syntax: `x => y`,
  which expands to `function (x) { return y; }`. However, for
  normal function definitions, there was no such shortening.
  For various applications, there can be more syntax than
  meaning, such as property accessors.

  This commit changes that by expanding the same `=>` syntax
  we already have to work in declarations as well. It expands
  to the same thing: `int foo() => x;` is simply
  `int foo() { return x; }`; this is just shortened syntax.
  Combined with existing rules like auto returns, a property
  getter can be be as simple as `@property x() => x_;` or a
  range-based pipeline may appear like
  `auto common_operation() => this[].sort.uniq;` giving D's
  existing functional strengths more syntax sugar.

  C# has demonstrated the utility of such shortened methods
  since its version 7. However, while C# allows it for
  constructors as well, this commit will parse it but fail
  in semantic because you cannot return a value from a
  constructor. I am not convinced it is worth special-casing
  the simple "=> y ALWAYS means "{ return y; }" rule for
  this case and thus left it alone.

https://github.com/dlang/dmd/pull/11833

--