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[dev.typeparams] cmd/compile/internal/types2: print constraint info for type param operands

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Change-Id: Ic7a249fc150b526835db744431bef500c20fbd26
Reviewed-on: https://go-review.googlesource.com/c/go/+/338309
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
This commit is contained in:
Robert Griesemer 2021-07-29 11:14:54 -07:00
parent aa3d54da07
commit 283991bd7f
1 changed files with 10 additions and 6 deletions
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16
src/cmd/compile/internal/types2/operand.go
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@ -176,16 +176,20 @@ func operandString(x *operand, qf Qualifier) string {
if hasType { if hasType {
if x.typ != Typ[Invalid] { if x.typ != Typ[Invalid] {
var intro string var intro string
switch { var tpar *TypeParam
case isGeneric(x.typ): if isGeneric(x.typ) {
intro = " of generic type " intro = " of parameterized type "
case asTypeParam(x.typ) != nil: } else if tpar = asTypeParam(x.typ); tpar != nil {
intro = " of type parameter type " intro = " of type parameter "
default: } else {
intro = " of type " intro = " of type "
} }
buf.WriteString(intro) buf.WriteString(intro)
WriteType(&buf, x.typ, qf) WriteType(&buf, x.typ, qf)
if tpar != nil {
buf.WriteString(" constrained by ")
WriteType(&buf, tpar.bound, qf) // do not compute interface type sets here
}
} else { } else {
buf.WriteString(" with invalid type") buf.WriteString(" with invalid type")
} }