February 01, 2020 [Issue 20552] New: Deprecated Nullable.get warning with Appenders | ||||
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https://issues.dlang.org/show_bug.cgi?id=20552 Issue ID: 20552 Summary: Deprecated Nullable.get warning with Appenders Product: D Version: D2 Hardware: x86_64 OS: Linux Status: NEW Severity: enhancement Priority: P1 Component: dmd Assignee: nobody@puremagic.com Reporter: tjonsies818@yahoo.com Migrated over from the dlang forums [1]. You get a deprecation warning when using Nullable members in a struct and an appender. The repro case is pretty simple: ``` import std.array : appender, Appender; import std.typecons : Nullable; struct StructWithNullable { Nullable!(string) nullableString; } void main() { Appender!(StructWithNullable[]) structWithNullableAppender; structWithNullableAppender.put(StructWithNullable.init); } ``` On the playground this prints the following warnings: ``` /dlang/dmd/linux/bin64/../../src/phobos/std/traits.d(3688): Deprecation: function std.typecons.Nullable!string.Nullable.get_ is deprecated - Implicit conversion with alias Nullable.get this will be removed after 2.096. Please use .get explicitly. /dlang/dmd/linux/bin64/../../src/phobos/std/traits.d(3689): Deprecation: function std.typecons.Nullable!string.Nullable.get_ is deprecated - Implicit conversion with alias Nullable.get this will be removed after 2.096. Please use .get explicitly. ``` One challenge is the error doesn't point you to the source of where the problem is occurring, and it can be very difficult to isolate the root cause of the issue. [1] https://forum.dlang.org/post/tuczsbvyocxzrejgdrdf@forum.dlang.org. -- |
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