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| author | Robert Griesemer <gri@golang.org> | 2021-08-23 18:29:38 -0700 |
|---|---|---|
| committer | Robert Griesemer <gri@golang.org> | 2021-08-24 16:36:48 +0000 |
| commit | 1ff0554b5318d5a39e2b26a9c84330e6aa47b1c6 (patch) | |
| tree | 14a98ed5b571cdf8bcdf847077e7ee04b9869de2 /src/cmd/compile/internal/types2/subst.go | |
| parent | bd9776357732eb3a3c635427bb3591e4cbc79cc5 (diff) | |
| download | go-1ff0554b5318d5a39e2b26a9c84330e6aa47b1c6.tar.gz go-1ff0554b5318d5a39e2b26a9c84330e6aa47b1c6.zip | |
cmd/compile/internal/types2: use []*TypeParam rather than []*TypeName for type param lists
This is a port of CL 343932 from go/types, with the necessary adjustments
to the compiler.
This change improves type safety slightly, avoids many internal type
assertions, and simplifies some code paths.
Change-Id: Ie9c4734814f49cd248927152d7b3264d3578428c
Reviewed-on: https://go-review.googlesource.com/c/go/+/344614
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Dan Scales <danscales@google.com>
Diffstat (limited to 'src/cmd/compile/internal/types2/subst.go')
| -rw-r--r-- | src/cmd/compile/internal/types2/subst.go | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/cmd/compile/internal/types2/subst.go b/src/cmd/compile/internal/types2/subst.go index edbbdb4758..467066cc69 100644 --- a/src/cmd/compile/internal/types2/subst.go +++ b/src/cmd/compile/internal/types2/subst.go @@ -15,11 +15,11 @@ type substMap map[*TypeParam]Type // makeSubstMap creates a new substitution map mapping tpars[i] to targs[i]. // If targs[i] is nil, tpars[i] is not substituted. -func makeSubstMap(tpars []*TypeName, targs []Type) substMap { +func makeSubstMap(tpars []*TypeParam, targs []Type) substMap { assert(len(tpars) == len(targs)) proj := make(substMap, len(tpars)) for i, tpar := range tpars { - proj[tpar.typ.(*TypeParam)] = targs[i] + proj[tpar] = targs[i] } return proj } |