[Issue 23915] New: Instance method properties not evaluated when passed to template value argument
d-bugmail at puremagic.com
d-bugmail at puremagic.com
Fri May 12 16:43:47 UTC 2023
https://issues.dlang.org/show_bug.cgi?id=23915
Issue ID: 23915
Summary: Instance method properties not evaluated when passed
to template value argument
Product: D
Version: D2
Hardware: All
OS: All
Status: NEW
Keywords: rejects-valid
Severity: normal
Priority: P1
Component: dmd
Assignee: nobody at puremagic.com
Reporter: dlang-bugzilla at thecybershadow.net
//////////////////////////// test.d ///////////////////////////
template T(bool value) {}
@property bool getValue() { return true; }
alias Inst1 = T!(getValue); // OK
struct S2 { static @property bool getValue() { return true; } }
alias Inst2 = T!(S2.getValue); // OK
struct S3 { @property bool getValue() { return true; } }
alias Inst = T!(S3().getValue); // Error
///////////////////////////////////////////////////////////////
For some reason, free functions and static functions work, but not instance
methods.
Compiler says:
test.d(10): Error: template instance `T!(getValue)` does not match template
declaration `T(bool value)`
test.d(10): `getValue` is not of a value of type `bool`
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