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Merge pull request #46 from dukc/copyableUnits

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Allowed copying of tagged unions containing unit values
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Sönke Ludwig 2020-02-21 15:42:26 +01:00 committed by GitHub
parent 30de5843ba c42c9a4e57
commit c658b37bdb
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 2 additions and 1 deletions
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source/taggedalgebraic/taggedunion.d
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@ -39,6 +39,7 @@ align(commonAlignment!(UnionKindTypes!(UnionFieldEnum!U))) struct TaggedUnion
{
import std.traits : FieldTypeTuple, FieldNameTuple, Largest,
hasElaborateCopyConstructor, hasElaborateDestructor, isCopyable;
import std.meta : templateOr;
import std.ascii : toUpper;
alias FieldDefinitionType = U;
@ -104,7 +105,7 @@ align(commonAlignment!(UnionKindTypes!(UnionFieldEnum!U))) struct TaggedUnion
}
// postblit constructor
static if (!allSatisfy!(isCopyable, FieldTypes)) {
static if (!allSatisfy!(templateOr!(isCopyable, isUnitType), FieldTypes)) {
@disable this(this);
} else static if (anySatisfy!(hasElaborateCopyConstructor, FieldTypes)) {
this(this)