https://issues.dlang.org/show_bug.cgi?id=13805
Issue ID: 13805
Summary: Nested struct initialization error
Product: D
Version: D2
Hardware: x86
OS: Windows
Status: NEW
Keywords: rejects-valid
Severity: normal
Priority: P1
Component: DMD
Assignee: [email protected]
Reporter: [email protected]
>From issue 13595. This looks like a compiler bug:
void main() {
import std.algorithm: map, groupBy;
//[""].map!((string s) => s).groupBy!((x, y) => true); // OK
[""].map!((s) => s).groupBy!((x, y) => true); // Error
}
dmd 2.067alpha gives:
...\dmd2\windows\bin\..\..\src\phobos\std\algorithm.d(4659): Error: field _prev
must be initialized in constructor, because it is nested struct
...\dmd2\windows\bin\..\..\src\phobos\std\algorithm.d(4770): Error: template
instance temp.main.groupBy!(__lambda2, cast(Flag)false, MapResult!(__lambda1,
string[])) error instantiating
temp.d(5): instantiated from here: groupBy!((x, y) => true,
MapResult!(__lambda1, string[]))
The error doesn't appear if you replace "(s)" with "(string s)".
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