This CL updates the internal/typeparams package with the new API from CL
349629, switching Info.Inferred to Info.Instances.
Change-Id: I8f98dc39c844ef8891863c08b747f63924ab1c53
Reviewed-on: https://go-review.googlesource.com/c/tools/+/351250
Trust: Robert Findley <rfindley@google.com>
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Reviewed-by: Robert Griesemer <gri@golang.org>
This CL adds support for the Go 1.18 export format to iexport.go. This
support is based on cmd/compile/internal/typecheck/iexport.go, though
with a different types API and adjusted to build at Go versions below
1.18.
Specifically, this CL adds support for both column details in positions,
and generic types and functions. Along the way, some minor adjustments
are made to aid in debugging and testing.
Notably, after this CL the export data version produced by
go/gcexportdata will depend on the Go version used to build.
As part of this change, TestIExportData_stdlib is unskipped for Go 1.18.
Fixesgolang/go#48392
Change-Id: I1b218e0acd4864de5c7b89706192273bc7850ffa
Reviewed-on: https://go-review.googlesource.com/c/tools/+/351029
Trust: Robert Findley <rfindley@google.com>
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Reviewed-by: Matthew Dempsky <mdempsky@google.com>
This CL pulls in the latest changes from go/internal/gcimporter, while
avoiding breaking the build on older go versions. To help maintain
compatibility with older Go versions while minimizing the diff with the
standard library importer, the internal/typeparams package was
significantly expanded.
I decided to use type aliases in the internal/typeparams package on Go
version >= go1.18, and placeholder types on Go version < go1.18. This
reduces the amount of copying needed in the APIs, though it might not be
the best decision if we ever decide to export this package.
Documentation was also updated to be more concise and specific to the Go
version being used.
In order to actually fix the x/tools Trybot for packages using generics
in the standard library, we need to switch from the 'typeparams' build
constraint to the 'go1.18' build constraint. This means if we make any
additional API changes in go/types we'll have to submit them with a
broken x/tools Trybot and then immediately fix the x/tools build.
Change-Id: Ifa0b1c37b89dc549ee295fa3a959f03deda86e56
Reviewed-on: https://go-review.googlesource.com/c/tools/+/349949
Trust: Robert Findley <rfindley@google.com>
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gopls-CI: kokoro <noreply+kokoro@google.com>
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Reviewed-by: Robert Griesemer <gri@golang.org>
This type was renamed in CL 348609, based on discussion in the
go/ast proposal.
Change-Id: I3addcf1bb192ad03f59f599a7aec68a579178fd5
Reviewed-on: https://go-review.googlesource.com/c/tools/+/348629
Trust: Robert Findley <rfindley@google.com>
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Reviewed-by: Robert Griesemer <gri@golang.org>
As discussed on both proposals to CL 348375 (#47781) and
CL 348376 (#47916), Go core changed the 'T' word to 'Type'.
Follows those changes as well.
Change-Id: I52c354cdc7494aaf3c63bfb136efa86159175314
Reviewed-on: https://go-review.googlesource.com/c/tools/+/348509
Reviewed-by: Robert Findley <rfindley@google.com>
Trust: Robert Findley <rfindley@google.com>
Trust: Rebecca Stambler <rstambler@golang.org>
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This fixes the build when run with -tags=typeparams.
Change-Id: I94861e7f46e396804740a8e3c24f164380903a69
Reviewed-on: https://go-review.googlesource.com/c/tools/+/343129
Reviewed-by: Robert Findley <rfindley@google.com>
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gopls-CI: kokoro <noreply+kokoro@google.com>
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Trust: Hyang-Ah Hana Kim <hyangah@gmail.com>
Current tip Go runtime (7eaabae84d) haven't (actually removed)
implements *types.Named.TArgs() method.
Calculate and make targs using named.NumTArgs().
Change-Id: Ib6a61cf2f8da644f533891f9bbb30179f8a7df5c
Reviewed-on: https://go-review.googlesource.com/c/tools/+/342229
Reviewed-by: Robert Findley <rfindley@google.com>
Trust: Robert Findley <rfindley@google.com>
Trust: Rebecca Stambler <rstambler@golang.org>
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Recent changes to the go/ast APIs for type parameters have broken the
internal/typeparams package when built with -tags=typeparams.
Fix this by adjusting the internal/typeparams API. Also update a few
tests accordingly.
Bump the build constraint used by the internal/typeparams package to
go1.18, as we are no longer compatible with the 1.17 typeparams API. It
is no long possible to opt in to type parameter specific functionality
1.17, which is fine as the dev.typeparams branch has moved to 1.18.
Even after these fixes, not all x/tools tests pass with go1.18. Some
completion tests are failing due to finding 'any' in types.Universe.
Change-Id: I5f92870aaf7853e531e3a154987f98520a52d70c
Reviewed-on: https://go-review.googlesource.com/c/tools/+/339349
Trust: Robert Findley <rfindley@google.com>
Trust: Robert Griesemer <gri@golang.org>
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gopls-CI: kokoro <noreply+kokoro@google.com>
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Reviewed-by: Robert Griesemer <gri@golang.org>
Use the typeparams helper package to fix AST rewriting in go/ast/astutil
when encountering the new ListExpr type.
This is liable to break in the future when the go/ast API changes, but
at least it will be easy to find by virtue of using internal/typeparams.
Fixesgolang/vscode-go#1551
Change-Id: Id34bbcdede9024ed9818bef6d73a19e993dd76a8
Reviewed-on: https://go-review.googlesource.com/c/tools/+/326131
Trust: Robert Findley <rfindley@google.com>
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Tools like gopls will want to add additional features to support working
with generic code, but need to continue to compile at older Go versions
that don't support type parameters.
This CL contains an initial draft of a helper library that may be used
to interrogate generic type information from go/ast and go/types without
having to guard the calling code with a build constraint.
I will use this library to implement some generics features for gopls.
Once we're confident in the API, it could potentially be exported as
x/tools/go/typeparams.
Change-Id: I0ad3050b57cf8d8e8dda7d350d18f5e50f4105ff
Reviewed-on: https://go-review.googlesource.com/c/tools/+/317451
Trust: Robert Findley <rfindley@google.com>
Trust: Robert Griesemer <gri@golang.org>
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gopls-CI: kokoro <noreply+kokoro@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
Robert Findley
Koichi Shiraishi