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arguments (cleanup)
Simplified names and unnecessary function indirections where possible.
Change-Id: I1c7a386393d086fd7ad29f892e03f048781f3547
Reviewed-on: https://go-review.googlesource.com/c/go/+/331512
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
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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>
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Panic if the slice is too short.
Updates #395
Change-Id: I90f4bff2da5d8f3148ba06d2482084f32b25c29a
Reviewed-on: https://go-review.googlesource.com/c/go/+/301650
Trust: Josh Bleecher Snyder <josharian@gmail.com>
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
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Based on https://golang.org/cl/284256 for go/types.
Brings this code more in line with go/types.
Adjusted various tests to match new error messages which
generally are now better: for assignment errors, instead
of a generic "cannot convert" we now say "cannot use"
followed by a clearer reason as to why not.
Major differences to go/types with respect to the changed
files:
- Some of the new code now returns error codes, but they
are only used internally for now, and not reported with
errors.
- go/types does not "convert" untyped nil values to target
types, but here we do. This is unchanged from how types2
handled this before this CL.
Change-Id: If45336d7ee679ece100f6d9d9f291a6ea55004d8
Reviewed-on: https://go-review.googlesource.com/c/go/+/302757
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
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The changes between (equivalent, and reviewed) go/types/conversions.go
and conversions.go can be seen by comparing patchset 1 and 2. The actual
change is just removing the "// UNREVIEWED" marker.
Change-Id: I86d20d8100ec29fe3be996b975c9b4aff01be85e
Reviewed-on: https://go-review.googlesource.com/c/go/+/294509
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
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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>
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than methods
This change replaces methods with functions to reduce the API surface of
types2.Type and to match the approach taken in go/types. The converter
methods for Named and TypeParam will be addressed in a follow-up CL.
Also: Fixed behavior of optype to return the underlying type for
arguments that are not type parameters.
Change-Id: Ia369c796754bc33bbaf0c9c8478badecb729279b
Reviewed-on: https://go-review.googlesource.com/c/go/+/293291
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
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context
With this CL, the type reported for uses of the predeclared
identifier nil changes from untyped nil to the type of the
context within which nil is used, matching the behaviour of
types2 for other untyped types.
If an untyped nil value is assigned or converted to an
interface, the nil expression is given the interface type.
The predicate TypeAndValue.IsNil doesn't change in behavior,
it still reports whether the relevant expression is a (typed
or untyped) nil value.
Change-Id: Id766468f3f3f2a53e4c55e1e6cd521e459c4a94f
Reviewed-on: https://go-review.googlesource.com/c/go/+/284218
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
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as "untyped nil"
This fixes an inconsistency where the type for nil in code such as
var x unsafe.Pointer = nil
and in conversions of the form
T(nil)
(where T is a pointer, function, slice, map, channel, interface, or
unsafe.Pointer) was reported as (converted to) the respective type.
For all other operations that accept a nil value, we don't do this
conversion for nil.
(We never change the type of the untyped nil value, in contrast to
other untyped values where we give the values context-specific types.)
It may still be useful to change this behavior and - consistently -
report a converted nil type like we do for any other type, but for
now this CL simply fixes the existing inconsistency.
Added tests and fixed existing test harness.
Updates #13061.
Change-Id: Ia82832845c096e3cbc4a239ba3d6c8b9a9d274c9
Reviewed-on: https://go-review.googlesource.com/c/go/+/284052
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
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string(int) conversion (regression)
This is a 1:1 port of the go/types changes in
https://golang.org/cl/272666 (master branch).
Updates #42790.
Change-Id: I5da372961df48129b25777ed705b84d7201393ec
Reviewed-on: https://go-review.googlesource.com/c/go/+/272669
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
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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>
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