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| author | Keith Randall <khr@golang.org> | 2021-08-03 08:10:17 -0700 |
|---|---|---|
| committer | Keith Randall <khr@golang.org> | 2021-08-09 18:41:45 +0000 |
| commit | ca3c6985cd143f170699d22ed984b7eed0f68e4d (patch) | |
| tree | 6787bfb8efffc4757a2d0b0b3aa66094279bce97 /src/cmd/compile/internal/noder/irgen.go | |
| parent | 57668b84ff43b15746a25e9653c278d174ea483f (diff) | |
| download | go-ca3c6985cd143f170699d22ed984b7eed0f68e4d.tar.gz go-ca3c6985cd143f170699d22ed984b7eed0f68e4d.zip | |
[dev.typeparams] cmd/compile: implement generic type switches
Add a new dynamicType node, which is used as a case entry when
the type being switched to is generic.
Change-Id: Ice77c6f224b8fdd3ff574fdf4a8ea5f6c7ddbe75
Reviewed-on: https://go-review.googlesource.com/c/go/+/339429
Trust: Keith Randall <khr@golang.org>
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Keith Randall <khr@golang.org>
Reviewed-by: Dan Scales <danscales@google.com>
Diffstat (limited to 'src/cmd/compile/internal/noder/irgen.go')
| -rw-r--r-- | src/cmd/compile/internal/noder/irgen.go | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/cmd/compile/internal/noder/irgen.go b/src/cmd/compile/internal/noder/irgen.go index 571e294416..7bc8a6bcc3 100644 --- a/src/cmd/compile/internal/noder/irgen.go +++ b/src/cmd/compile/internal/noder/irgen.go @@ -107,6 +107,10 @@ type gfInfo struct { // Nodes in generic functions that are a conversion from a typeparam/derived // type to a specific interface. itabConvs []ir.Node + // For type switches on nonempty interfaces, a map from OTYPE entries of + // HasTParam type, to the interface type we're switching from. + // TODO: what if the type we're switching from is a shape type? + type2switchType map[ir.Node]*types.Type } // instInfo is information gathered on an gcshape (or fully concrete) |