fix Issue 17425 - add __traits(getParameterStorageClasses, f, i) #6829
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Blocking dlang/phobos#5427 |
WalterBright
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@WalterBright there is some kind of error on osx32 |
Apparently another heisenbug in the testing scripts. |
| @@ -0,0 +1,18 @@ | |||
| add __traits(getParameterStorageClasses, f, i) | |||
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| $(LINK2 https://issues.dlang.org/show_bug.cgi?id=17425, Bugzilla 17425) | |||
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The changelog entry seems a bit terse. I'd use at least more descriptive variable names. Also, linking to the documentation instead of bugzilla might be more helpful.
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FYI the auto-tester allows to preview this since some time (though I am not sure why this isn't part of the diff, CC @CyberShadow)
In any case the link is e.g. http://dtest.dlang.io/artifact/website-72ba79b73f635fb08bdfe69d6826833c1c4c2ee0-a9052bf749bf29e4ae70eb23d51613de/web/changelog/2.075.0_pre.html#changelog17425 (the _pre file in the changelog folder).
FWIW there also seems to be a parenthesis problem in another changelog file..
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I didn't link to the documentation because that PR has not been pulled.
| @@ -968,6 +969,109 @@ extern (C++) Expression semanticTraits(TraitsExp e, Scope* sc) | |||
| auto se = new StringExp(e.loc, cast(char*)style); | |||
| return se.semantic(sc); | |||
| } | |||
| if (e.ident == Id.getParameterStorageClasses) | |||
| { | |||
| /* Accept a function symbol or a type, followed by a parameter index. | |||
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How about putting this code into a function? This improves readable and avoids making this function even larger (dmd is rather slow optimizing large functions).
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I leave refactorings to subsequent PRs, because they distract from what is being changed here.
| return new ErrorExp(); | ||
| } | ||
| ex = ex.ctfeInterpret(); | ||
| auto ii = ex.toUInteger(); |
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This doesn't propagate errors if the expression does not evaluate to an integer. That is not checked in other uses of toInteger/toUInteger elsewhere, too, though. Maybe add test pragma(msg, __traits(getParameterStorageClasses, foo, "1"));?
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That's a generic problem with all those functions, and fixing them should be in a separate PR.
ghost
mentioned this pull request
Oops, diff was eaten by an overly voracious disk cleanup script. Fixed for future cleanups. |
The point of this is so that
std.traits.ParameterStorageClassTuple()can be implemented without needing to study the name mangling.