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author | Matthew Dempsky <mdempsky@google.com> | 2021-07-02 16:29:42 -0700 |
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committer | Matthew Dempsky <mdempsky@google.com> | 2021-07-03 10:21:47 +0000 |
commit | 5dac279fbdd8a4273253de98a4e44484b20bec5b (patch) | |
tree | f25e5345d2179c0fd2aa1b18d4b533d92ba4b420 /src/cmd/compile/internal/walk | |
parent | 611056ec34b0c017df4c2ea9c6ae6ff99487db27 (diff) | |
download | go-5dac279fbdd8a4273253de98a4e44484b20bec5b.tar.gz go-5dac279fbdd8a4273253de98a4e44484b20bec5b.zip |
[dev.typeparams] cmd/compile: formalize "hidden parameters" idea
This CL formalizes the closure-var trick used for method-value
wrappers to be reusable for defining other functions that take hidden
parameters via the closure-context register. In particular, it:
1. Adds a new ir.NewHiddenParam function for creating hidden
parameters.
2. Changes ir.NewClosureVar to copy Type/Typecheck from the closure
variable, so that callers can needing to manually copy these.
3. Updates existing code accordingly (i.e., method-value wrappers to
start using ir.NewHiddenParam, and closure builders to stop copying
types).
Longer term, I anticipate using this to pass dictionaries to stenciled
functions within unified IR.
Change-Id: I9da3ffdb2a26d15c6e89a21b4e080686d6dc872c
Reviewed-on: https://go-review.googlesource.com/c/go/+/332612
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Diffstat (limited to 'src/cmd/compile/internal/walk')
-rw-r--r-- | src/cmd/compile/internal/walk/closure.go | 9 |
1 files changed, 1 insertions, 8 deletions
diff --git a/src/cmd/compile/internal/walk/closure.go b/src/cmd/compile/internal/walk/closure.go index a86ed2ab80..7f6ef473bf 100644 --- a/src/cmd/compile/internal/walk/closure.go +++ b/src/cmd/compile/internal/walk/closure.go @@ -238,17 +238,10 @@ func methodValueWrapper(dot *ir.SelectorExpr) *ir.Func { fn := typecheck.DeclFunc(sym, tfn) fn.SetDupok(true) - fn.SetNeedctxt(true) fn.SetWrapper(true) // Declare and initialize variable holding receiver. - ptr := ir.NewNameAt(base.Pos, typecheck.Lookup(".this")) - ptr.Class = ir.PAUTOHEAP - ptr.SetType(rcvrtype) - ptr.Curfn = fn - ptr.SetIsClosureVar(true) - ptr.SetByval(true) - fn.ClosureVars = append(fn.ClosureVars, ptr) + ptr := ir.NewHiddenParam(base.Pos, fn, typecheck.Lookup(".this"), rcvrtype) call := ir.NewCallExpr(base.Pos, ir.OCALL, ir.NewSelectorExpr(base.Pos, ir.OXDOT, ptr, meth), nil) call.Args = ir.ParamNames(tfn.Type()) |