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sumtype: prevent ambiguity in failedGetMessage

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Paul Backus 2025-02-27 10:01:43 -05:00
parent 03f7dbab9d
commit 1d3177ff2a
1 changed files with 17 additions and 3 deletions
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20
std/sumtype.d
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@ -2987,9 +2987,23 @@ version (D_Exceptions)
assert(ctResult == ElaborateCopy()); assert(ctResult == ElaborateCopy());
} }
private enum failedGetMessage(Expected, Actual) = private template failedGetMessage(Expected, Actual)
"Tried to get `" ~ Expected.stringof ~ "`" ~ {
" but found `" ~ Actual.stringof ~ "`"; static if (Expected.stringof == Actual.stringof)
{
enum expectedStr = __traits(fullyQualifiedName, Expected);
enum actualStr = __traits(fullyQualifiedName, Actual);
}
else
{
enum expectedStr = Expected.stringof;
enum actualStr = Actual.stringof;
}
enum failedGetMessage =
"Tried to get `" ~ expectedStr ~ "`" ~
" but found `" ~ actualStr ~ "`";
}
private template getLvalue(Flag!"try_" try_, T) private template getLvalue(Flag!"try_" try_, T)
{ {