Display of linkage in the compiler versus docs and examples

[dlangBugzillaToGithub]

Bolpat reported this on 2024-06-25T15:27:34Z

Transferred from https://issues.dlang.org/show_bug.cgi?id=24628

CC List

• Nick Treleaven
• Bolpat

Description

In the vast majority of uses, linkage is expressed without a space: e.g. `extern(C)` instead `extern (C)`, however, when DMD displays linkage, it inserts this space.

```d
extern(C) void f() { }
pragma(msg, typeof(&f));
```

Prints:
```
extern (C) void function()
```

Expected:
```
extern(C) void function()
```

[dlangBugzillaToGithub]

nick commented on 2024-06-25T20:12:49Z

The spec uses a space, see code examples:
https://dlang.org/spec/attribute.html#linkage

The files I have open from dmd use a space by about 4:1.

Not saying what's best, just providing some data points.