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authorDan Scales <danscales@google.com>2021-02-08 14:33:51 -0800
committerDan Scales <danscales@google.com>2021-02-10 01:44:48 +0000
commit12e15d430d408ff9a961bdfb72cfc7f0b521a354 (patch)
treefe0963bbd6e9d454d65d7c1ac6e611dd5e59947f /src/cmd/compile/internal/types/type.go
parentca18c4205442dc49eb35272b9f4b7f0cd8f2c079 (diff)
downloadgo-12e15d430d408ff9a961bdfb72cfc7f0b521a354.tar.gz
go-12e15d430d408ff9a961bdfb72cfc7f0b521a354.zip
[dev.typeparams] cmd/compile: handle calling a method on a type param in stenciling
- Have to delay the extra transformation on methods invoked on a type param, since the actual transformation (including path through embedded fields) will depend on the instantiated type. I am currently doing the transformation during the stencil substitution phase. We probably should have a separate pass after noder2 and stenciling, which drives the extra transformations that were in the old typechecker. - We handle method values (that are not called) and method calls. We don't currently handle method expressions. - Handle type substitution in function types, which is needed for function args in generic functions. - Added stringer.go and map.go tests, testing the above changes (including constraints with embedded interfaces). Change-Id: I3831a937d2b8814150f75bebf9f23ab10b93fa00 Reviewed-on: https://go-review.googlesource.com/c/go/+/290550 TryBot-Result: Go Bot <gobot@golang.org> Trust: Dan Scales <danscales@google.com> Trust: Robert Griesemer <gri@golang.org> Run-TryBot: Dan Scales <danscales@google.com> Reviewed-by: Robert Griesemer <gri@golang.org>
Diffstat (limited to 'src/cmd/compile/internal/types/type.go')
-rw-r--r--src/cmd/compile/internal/types/type.go1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/cmd/compile/internal/types/type.go b/src/cmd/compile/internal/types/type.go
index 8d07b88ecd..987aa11454 100644
--- a/src/cmd/compile/internal/types/type.go
+++ b/src/cmd/compile/internal/types/type.go
@@ -1657,6 +1657,7 @@ func NewInterface(pkg *Pkg, methods []*Field) *Type {
// not really be needed except for the type checker).
func NewTypeParam(pkg *Pkg, constraint *Type) *Type {
t := New(TTYPEPARAM)
+ constraint.wantEtype(TINTER)
t.methods = constraint.methods
t.Extra.(*Interface).pkg = pkg
return t