| Age | Commit message (Collapse) | Author |
|---|
|
This CL configures the parser to always accept 1.18 syntax
(type parameters, type instantiations, interface elements),
even when -lang is set to an earlier release.
Instead, the type checker looks for 1.18 operations and
complains if the language version is set to an earlier
release.
Doing these checks during type checking is necessary because it
it is possible to write "generic" code using pre-1.18 syntax;
for instance, an imported generic function may be implicitly
instantiated (as in imported.Max(2, 3)), or an imported constraint
interface may be embedded in an "ordinary" interface.
Fixes #47818.
Change-Id: I83ec302b3f4ba7196c0a4743c03670cfb901310d
Reviewed-on: https://go-review.googlesource.com/c/go/+/344871
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
|
|
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>
|
|
The 'TypeParams' name is too easily confused with the singular
'TypeParam', and does not say anything about what type of collection it
is. We decided that TTuple was not great. TParamList seems OK for now,
though perhaps a better name will emerge.
Change-Id: I5eabdc91b1f666bb4c7ea8acdbebf7c372d19227
Reviewed-on: https://go-review.googlesource.com/c/go/+/341861
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
|
|
Instantiate and InstantiateLazy have the same signature; on first
principles, if Instantiate should work for importers it should be
possible to consolidate these APIs.
This CL does this. In order to make it work, a typMap needs to be
threaded through type expansion to prevent infinite recursion in the
case that the Checker is nil.
Notably, Named types now must be expanded before returning from
Underlying(). This makes Underlying generally unsafe to call while type
checking a package, so a helper function safeUnderlying is added to
provide the previous behavior. This is probably overly conservative at
most call sites, but cleanup is deferred to a later CL.
Change-Id: I03cfb75bea0750862cd6eea4e3cdc875a7daa989
Reviewed-on: https://go-review.googlesource.com/c/go/+/341855
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
|
|
have a body
Add the respective check and add missing bodies to tests.
Use {} as body for functions that don't return a result.
Use { panic(0) } as body for functions that return a result.
For #47069.
Change-Id: Ia5d7525c9c036baf8a955d13bff448401e08235e
Reviewed-on: https://go-review.googlesource.com/c/go/+/340911
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
|
|
End-users are not expected to deal with the details of panics,
so providing extra information such as an "internal error" prefix
or the name of the function invoking the panic are not helpful.
Remove unnecessary panic verbiage if it is readily available from
a stack trace (such as the function where it happens, and the fact
that is is an "internal error").
Change-Id: I5f86bae6d2cca7c04ce692d17257da7ddee206d7
Reviewed-on: https://go-review.googlesource.com/c/go/+/339969
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
|
|
This is a clean port of CL 336251.
Change-Id: I08415c3e9b6cef33594e7d56c4115ddde8030381
Reviewed-on: https://go-review.googlesource.com/c/go/+/338193
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
|
|
This is a port of CL 336249 with adjustments due to slightly
different handling of type parameter declaration in types2.
The CL also contains adjustments to the compiler front-end.
With this change it is not necessary to export type parameter
indices. Filed issue #47451 so we don't forget.
Change-Id: I2834f7be313fcb4763dff2a9058f1983ee6a81b3
Reviewed-on: https://go-review.googlesource.com/c/go/+/338192
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
|
|
eliminate sanitization
This is a port of CL 335929 to types2. It differs significantly from
that CL to handle lazy loading, which wasn't tested in go/types.
Additionally, the *Checker field was moved out of instance and back
onto Named. This way we can tell whether a Named type is uninstantiated
simply by checking whether Named.instance is non-nil, which simplified
the code considerably.
Fixes #46151
Change-Id: I617263bcfaa768ac5442213cecad8d567c2749fc
Reviewed-on: https://go-review.googlesource.com/c/go/+/336252
Trust: Robert Findley <rfindley@google.com>
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
|
|
predeclared "any"
Rather than removing "any" from the universe scope, keep it predeclared
but provide a better error message.
While at it, remove some unnecessary type assertions.
Change-Id: I10603274282ea6afc107f703ab194f32bd334dd1
Reviewed-on: https://go-review.googlesource.com/c/go/+/334911
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
|
|
named.go (cleanup)
No other code changes except for an additional comment.
Change-Id: Ica3cea446c6c88f4f81a86d77b289a0b54b1e76f
Reviewed-on: https://go-review.googlesource.com/c/go/+/333671
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
|
|
as RHS of a type declaration
For #45639.
Change-Id: I20e331b04f464db81e916af75f70ec8ae73eb989
Reviewed-on: https://go-review.googlesource.com/c/go/+/332411
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
|
|
bounds
While at it, clean up code for collecting/declaring type parameters.
For #40789.
Change-Id: I0855137d5ee85c0ae2fa60d33b28c24a33132fbc
Reviewed-on: https://go-review.googlesource.com/c/go/+/331690
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
|
|
This CL adds three new functions to the types2 API to support lazy
import resolution:
1. A new Scope.InsertLazy method to allow recording that Objects exist
in a particular Scope (in particular, package scopes) without having
to yet fully construct those objects. Instead, types2 will call the
provided `resolve` function if/when the object is actually needed.
2. Similarly, a new NewTypeNameLazy function to create TypeName
objects without yet instantiating their underlying Named
instance.
3. Finally, an InstantiateLazy method, that allows creating type
instances without requiring any of the types to be expanded right
away. Importantly, this requires providing a types2.Checker argument
to handle recursive types correctly.
The APIs as-is are a bit clumsy (esp. NewTypeNameLazy), but seem to
work well for cmd/compile's needs. In particular, they simplify some
of the complexities of handling recursive type definitions within the
importer.
Also, the current prototype is a bit fragile. It uses sync.Once to
manage concurrent lazy resolution, which is frustrating to debug in
the presence of reentrancy issues. It also means the importer needs to
deal with concurrency as well. These aren't issues for types2 though
as cmd/compile only walks the type-checked AST sequentially.
Finally, it looks like some of the details of lazy type names are
similar to the lazy "instance" stuff used for generics, so maybe
there's opportunity for unifying them under a more general (but still
internal) lazy type mechanism.
I had originally intended for this CL to also update the types2
importer, but (1) it doesn't have access to the types2.Checker
instance needed to call InstantiateLazy, and (2) it creates a new
TypeName/TypeParam at each use rather than reusing them, which
evidently works with types2.Instantiate but not
types2.(*Checker).instantiate (i.e., InstantiateLazy). I spent a while
trying to fix these issues, but kept running into more subtle
issues. Instead, I've included my WIP "unified IR" CL as a followup CL
that demonstrates these Lazy methods (see noder/reader2.go).
Updates #46449.
Change-Id: I4d1e8e649f6325a11790d25fd90c39fa07c8d41d
Reviewed-on: https://go-review.googlesource.com/c/go/+/323569
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
Trust: Matthew Dempsky <mdempsky@google.com>
Trust: Robert Griesemer <gri@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
|
|
nilled out once it is expanded
This is a port of
- https://golang.org/cl/318849
- https://golang.org/cl/322974
For #45580.
Change-Id: Ie0700ed6c8d472305d5ba7ff97da1ae063152aa3
Reviewed-on: https://go-review.googlesource.com/c/go/+/323030
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
|
|
Add missing version check. Even though this is a new types2 error
we separate between the compiler and the types2 error message: we
have the compiler error message to match the compiler style, and
we have a types2-specific error message to match the types2 style
for these kinds of errors (for now).
Eventually we need to decide which style we like better and clean
this up.
Follow-up on https://golang.org/cl/301650.
Updates #395.
Change-Id: I5b779f345994c66b1f4a4db466466f98b7d3c491
Reviewed-on: https://go-review.googlesource.com/c/go/+/315169
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
|
|
Fixes #45594.
Change-Id: I2fcc784e6908403dd96b009546e1ac2f53b9f0e8
Reviewed-on: https://go-review.googlesource.com/c/go/+/314776
Trust: Robert Griesemer <gri@golang.org>
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Dan Scales <danscales@google.com>
|
|
Named.SetTParams sets the type parameters for a named type.
Named.Orig returns the original generic type an instantiated
type is derived from. Added a new field orig for that purpose
and renamed the already existing orig field to fromRHS.
Finally, updated various comments.
Change-Id: Ic9d173e42740422d195713d8bdc62a54dc8c5f54
Reviewed-on: https://go-review.googlesource.com/c/go/+/309832
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
|
|
Make position comparison generally available.
Change-Id: I94b6f658fa19a15b30574dbb2181879115c131a8
Reviewed-on: https://go-review.googlesource.com/c/go/+/307215
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
|
|
This moves the two helper functions startPos and endPos into
the syntax package where they belong. Export the functions and
adjust dependent code.
Change-Id: I8170faeadd7cfa8f53009f81fcffd50ec0fc6a98
Reviewed-on: https://go-review.googlesource.com/c/go/+/305578
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
|
|
The changes between (equivalent, and reviewed) go/types/decl.go
and decl.go can be seen by comparing patchset 1 and 2. The actual
changes are removing the "// UNREVIEWED" marker and a minor comment
update.
The primary differences to go/types/decl.go are:
- use of syntax rather than go/ast package
- use of error_ objects to collect follow-on error info
- use of check.conf.Trace rather than global trace flag
- more aggressively marking variables as used in the presence errors
- not using a walkDecl abstraction for const/var/type declarations
Change-Id: I5cf26779c9939b686a3dbaa4d38fdd0c154a92ca
Reviewed-on: https://go-review.googlesource.com/c/go/+/305570
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
|
|
- Remove specialized errorf functions for invalid AST/argument/operation.
Instead use prefix constants with the error message.
- Replace several calls to Checker.errorf with calls to Checker.error
if there are no arguments to format.
- Replace a handful of %s format verbs with %v to satisfy vet check.
- Add a basic test that checks that we're not using Checker.errorf when
we should be using Checker.error.
Change-Id: I7bc7c14f3cf774689ec8cd5782ea31b6e30dbcd6
Reviewed-on: https://go-review.googlesource.com/c/go/+/300995
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
|
|
Until now, errors which came with additional details (e.g., a declaration
cycle error followed by the list of objects involved in the cycle, one per
line) were reported as an ordinary error followed by "secondary" errors,
with the secondary errors marked as such by having a tab-indented error
message.
This approach often required clients to filter these secondary errors
(as they are not new errors, they are just clarifying a previously
reported error).
This CL introduces a new internal error_ type which permits accumulating
various error information that may then be reported as a single error.
Change-Id: I25b2f094facd37e12737e517f7ef8853d465ff77
Reviewed-on: https://go-review.googlesource.com/c/go/+/296689
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
|
|
Change-Id: I9a234cc1f04ca762375b51ec8ef009fb264c7ed1
Reviewed-on: https://go-review.googlesource.com/c/go/+/295689
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
|
|
favor of function
This removes the need for the aType embedded type and brings the types2.Type
API in sync with the go/types.Type API.
For reasons not fully understood yet, introducing the new under function
causes a very long initialization cycle error, which doesn't exist in
go/types. For now, circumvent the problem through a helper function variable.
This CL also eliminates superflous (former) Under() method calls
inside optype calls (optype takes care of this).
Plus some minor misc. cleanups and comment adjustments.
Change-Id: I86e13ccf6f0b34d7496240ace61a1c84856b6033
Reviewed-on: https://go-review.googlesource.com/c/go/+/293470
Reviewed-by: Robert Findley <rfindley@google.com>
Trust: Robert Griesemer <gri@golang.org>
|
|
methods with functions
This removes two more converter methods in favor of functions.
This further reduces the API surface of types2.Type and matches
the approach taken in go/types.
Change-Id: I3cdd54c5e0d1e7664a69f3697fc081a66315b969
Reviewed-on: https://go-review.googlesource.com/c/go/+/293292
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
|
|
Add respective check to type checker.
Remove respective check from the compiler's new type2-based noder.
Updates #31793.
Change-Id: I907e3acab4c136027a8c3db1e9bac301d209c2e1
Reviewed-on: https://go-review.googlesource.com/c/go/+/289570
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
|
|
arguments
The design draft doesn't support this anymore.
Also: Fixed a potential bug in the receiver unpack code
(found by rfindley@).
Change-Id: Ic52eedc686adcb4d5a98884ad0134679c3685c13
Reviewed-on: https://go-review.googlesource.com/c/go/+/278853
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
|
|
for compiler
Triaged and adjusted more test/fixedbugs/* tests.
Change-Id: I80b9ead2445bb8d126b7d79db4bea9ddcb225a84
Reviewed-on: https://go-review.googlesource.com/c/go/+/276812
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
|
|
inherited const init expression
Enabled fixedbugs/issue8183.go for run.go with new typechecker
now that issue is fixed.
Fixes #42992.
Updates #42991.
Change-Id: I23451999983b740d5f37ce3fa75ee756daf1a44f
Reviewed-on: https://go-review.googlesource.com/c/go/+/275517
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
|
|
errors for invalid var decls
Matches compiler behavior.
Change-Id: I87ca46fb7269fbac61ffbf8ed48902156b06f6e4
Reviewed-on: https://go-review.googlesource.com/c/go/+/274615
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
|
|
compiler error messages
In order to get types2 usable by the compiler, we need to
pass all the compiler tests with respect to error messages.
Sometimes the compiler error messages are better, sometimes
the types2 error messages are better. Where we can, we decide
on a case-by-case basis; but sometimes, for expediency's sake,
we just choose the compiler error message as it may reduce the
amount of tests that we need to update.
This CL introduces a new Config flag: CompilerErrorMessages.
If set, the typechecker emits an error message that matches
the expected errors in the tests most easily. Eventually, we
need to get rid of this flag by either adjusting the typechecker
errors or the test cases; t.b.d. on a case-by-case basis.
This CL also adjust a few error typechecker error messages already.
Change-Id: I9d4e491efadf87e999fc0d5b5151ec02a059f891
Reviewed-on: https://go-review.googlesource.com/c/go/+/274312
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
|
|
parameter pointer designation
An earlier version of the draft design supported pointer designation for
type parameters. Remove related code since we don't need it anymore.
Change-Id: I0d9e8c5f02a9a6745ff7ee15b8267a99ab1529e1
Reviewed-on: https://go-review.googlesource.com/c/go/+/273327
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
|
|
types2 and importer
This is a copy of the importer and types2 (unreviewed) prototype version
excluding the testdata directory containing tests (see below). Each file
is marked with the comment
// UNREVIEWED
on the first line. The plan is to check in this code wholesale (it runs and
passes all tests) and then review the code file-by-file via subsequent CLs
and remove the "// UNREVIEWED" comments as we review the files.
Since most tests are unchanged from the original go/types, the next CL will
commit those tests as they don't need to be reviewed again. (Eventually we
may want to factor them out and share them from a single place, e.g. the
test directory.)
The existing file fmtmap_test.go was updated.
Change-Id: I9bd0ad1a7e7188b501423483a44d18e623c0fe71
Reviewed-on: https://go-review.googlesource.com/c/go/+/263624
Trust: Robert Griesemer <gri@golang.org>
Trust: Keith Randall <khr@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
|
