Re: Inspecting __traits(isDeprecated) and deprecation warnings
On Wednesday, 25 September 2019 at 20:35:55 UTC, Boris Carvajal wrote: On Wednesday, 25 September 2019 at 14:20:00 UTC, Anonymouse wrote: I added some deprecations in my project and am going through my templates trying to silence the warnings that suddenly popped up. This template works, but it triggers deprecation warnings when I am actively trying to avoid them. This code seems to work for classes too and even with DMD "-de" compiler switch. template isMemberDeprecated(T, string name) { enum isMemberDeprecated = mixin(q{__traits(isDeprecated, }, T, ".", name, q{)}); } https://run.dlang.io/is/iQbxOC I think I can work with this, thanks!
Re: Inspecting __traits(isDeprecated) and deprecation warnings
On 9/25/19 11:35 PM, Boris Carvajal wrote: On Wednesday, 25 September 2019 at 14:20:00 UTC, Anonymouse wrote: I added some deprecations in my project and am going through my templates trying to silence the warnings that suddenly popped up. This template works, but it triggers deprecation warnings when I am actively trying to avoid them. This code seems to work for classes too and even with DMD "-de" compiler switch. template isMemberDeprecated(T, string name) { enum isMemberDeprecated = mixin(q{__traits(isDeprecated, }, T, ".", name, q{)}); } https://run.dlang.io/is/iQbxOC It's really nice! Thank you.
Re: Inspecting __traits(isDeprecated) and deprecation warnings
On Wednesday, 25 September 2019 at 14:20:00 UTC, Anonymouse wrote: I added some deprecations in my project and am going through my templates trying to silence the warnings that suddenly popped up. This template works, but it triggers deprecation warnings when I am actively trying to avoid them. This code seems to work for classes too and even with DMD "-de" compiler switch. template isMemberDeprecated(T, string name) { enum isMemberDeprecated = mixin(q{__traits(isDeprecated, }, T, ".", name, q{)}); } https://run.dlang.io/is/iQbxOC
Re: Inspecting __traits(isDeprecated) and deprecation warnings
On Wednesday, 25 September 2019 at 05:57:19 UTC, Tobias Pankrath wrote: Does your code work or does it not? I don't seem to unterstand neither what the question here is nor what the desired result is. Is the problem that the static reflections triggers the deprecation warning? I added some deprecations in my project and am going through my templates trying to silence the warnings that suddenly popped up. This template works, but it triggers deprecation warnings when I am actively trying to avoid them. getMember in _traits(isDeprecated, __traits(getMember, T, name)) causes a warning on deprecated symbols, which I wanted to avoid with isDeprecated, but I couldn't without first calling getMember to get the symbol to evaluate it. There's no way to combine isDeprecated with getMember without getting a warning. I worked around the issue by using .tupleof instead of getMember, which breaks it for classes (.tupleof needs a `this` and SomeClass.init can't be it) but silences warnings for structs. https://run.dlang.io/is/TVR8Cb import std; void main() { static assert(longestMemberName!Foo == "bbb".length); } struct Foo { string s; int ii; bool bbb; deprecated("Use `s`") string ; } template longestMemberName(T) if (is(T == struct)) { enum longestMemberName = () { size_t maxLength; T thing; // need a `this` foreach (immutable i, member; thing.tupleof) { static if (!__traits(isDeprecated, thing.tupleof[i]) && !isType!(thing.tupleof[i])) { enum name = __traits(identifier, thing.tupleof[i]); maxLength = max(maxLength, name.length); } } return maxLength; }(); }
Re: Inspecting __traits(isDeprecated) and deprecation warnings
On Tuesday, 24 September 2019 at 17:01:46 UTC, Anonymouse wrote: I want to write a piece of code that reflects on the names of members of a passed struct, where some are depreacted. https://run.dlang.io/is/P9EtRG struct Foo { string s; int ii; bool bbb; deprecated("Use `s`") string ; } template longestMemberLength(T) { enum longestMemberLength = () { size_t maxLength; foreach (immutable i, immutable name; __traits(allMembers, T)) { static if (!__traits(isDeprecated, __traits(getMember, T, name))) { maxLength = max(maxLength, name.length); } } return maxLength; }(); } static assert (longestMemberLength!Foo == "bbb".length); onlineapp.d(23): Deprecation: variable `onlineapp.Foo.` is deprecated - Use s Is there any way to inspect the deprecated-ness of a member this way? I only have what __traits(allMembers) gives me. Does your code work or does it not? I don't seem to unterstand neither what the question here is nor what the desired result is. Is the problem that the static reflections triggers the deprecation warning?
Inspecting __traits(isDeprecated) and deprecation warnings
I want to write a piece of code that reflects on the names of members of a passed struct, where some are depreacted. https://run.dlang.io/is/P9EtRG struct Foo { string s; int ii; bool bbb; deprecated("Use `s`") string ; } template longestMemberLength(T) { enum longestMemberLength = () { size_t maxLength; foreach (immutable i, immutable name; __traits(allMembers, T)) { static if (!__traits(isDeprecated, __traits(getMember, T, name))) { maxLength = max(maxLength, name.length); } } return maxLength; }(); } static assert (longestMemberLength!Foo == "bbb".length); onlineapp.d(23): Deprecation: variable `onlineapp.Foo.` is deprecated - Use s Is there any way to inspect the deprecated-ness of a member this way? I only have what __traits(allMembers) gives me.