allow with on an expression

[dlangBugzillaToGithub]

John Colvin (@John-Colvin) reported this on 2016-03-03T15:51:03Z

Transferred from https://issues.dlang.org/show_bug.cgi?id=15749

CC List

• mhh

Description

The motivation is stuff like this:

zip(iota(10), iota(10, 20))
.map!(t => Tuple!(int, "a", int, "b)(t))
.map!(t => with(t) a + b);

which, short of having some proper tuple unpacking syntax (that would be so, so good), is nicer than the current

.map!((t) { with(t) return a + b; });

that might seem like a small change, but I'm having a hard time selling D and functional programming to scientists with all the heavyweight syntax, they are spoiled by the inefficient but neat-looking numpy model.

[dlangBugzillaToGithub]

dlang-bot commented on 2022-03-07T07:21:37Z

@maxhaton created dlang/dmd pull request #13776 "Fix Issue 15749 - Implement with expressions" fixing this issue:

- Fix Issue 15749 - Implement with expressions

https://github.com/dlang/dmd/pull/13776