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[dev.regabi] cmd/compile/internal/types: add IsScalar query method

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Add method Type.IsScalar() method, which returns TRUE
for numeric and pointer-shaped types, false for composites
such as string/array/slice/struct.

Change-Id: Ie53c71c07c5b3fbae11b48addd172343dc6bf3fd
Reviewed-on: https://go-review.googlesource.com/c/go/+/274857
Run-TryBot: Than McIntosh <thanm@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Trust: Than McIntosh <thanm@google.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
This commit is contained in:
Than McIntosh 2020-12-02 16:13:45 -05:00 committed by Alexander Rakoczy
parent 2b76429eb0
commit 7e17b46c58
1 changed files with 14 additions and 0 deletions
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14
src/cmd/compile/internal/types/type.go
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@ -1335,6 +1335,20 @@ func (t *Type) IsEmptyInterface() bool {
return t.IsInterface() && t.NumFields() == 0
}
// IsScalar reports whether 't' is a scalar Go type, e.g.
// bool/int/float/complex. Note that struct and array types consisting
// of a single scalar element are not considered scalar, likewise
// pointer types are also not considered scalar.
func (t *Type) IsScalar() bool {
switch t.kind {
case TBOOL, TINT8, TUINT8, TINT16, TUINT16, TINT32,
TUINT32, TINT64, TUINT64, TINT, TUINT,
TUINTPTR, TCOMPLEX64, TCOMPLEX128, TFLOAT32, TFLOAT64:
return true
}
return false
}
func (t *Type) PtrTo() *Type {
return NewPtr(t)
}