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Merged
merged 3 commits into from
Jan 26, 2025
Merged

Update traits.dd #4165

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a3b8d7f
Update traits.dd
chibisi Jan 25, 2025
733b26b
Update spec/traits.dd
chibisi Jan 25, 2025
92467cb
Update spec/traits.dd
chibisi Jan 25, 2025
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24 changes: 24 additions & 0 deletions spec/traits.dd
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Original file line number Diff line number Diff line change
Expand Up @@ -1930,6 +1930,30 @@ static assert(__traits(isSame, object, object));
alias daz = foo;
static assert(__traits(isSame, foo, daz));
---
)
$(P isSame will also match template symbols as well as types.)

$(SPEC_RUNNABLE_EXAMPLE_COMPILE
---
struct Foo(T){
T x;
}

struct Bar(T){
T x;
}

struct Point(T){
T x;
T y;
}

enum isFooOrBar(alias FB) = __traits(isSame, FB, Foo) || __traits(isSame, FB, Bar);

static assert(isFooOrBar!(Foo));//true
static assert(isFooOrBar!(Bar));//true
static assert(isFooOrBar!(Point));//false
---
)

$(P The result is `true` if the two arguments are expressions
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