Use the type name object as the signature source for type parametes, as
it it efficiently formatted as "type parameter <name> <constraint>".
Fixesgolang/go#51116
Change-Id: I3042ff248402dae833e3197c6ac320c2bd103c07
Reviewed-on: https://go-review.googlesource.com/c/tools/+/385018
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We should not offer links to variable or type declarations in function
scope. Improve our heuristics to check that the declaration object is
actually reachable from the package scope.
Also push down handling of private import paths, so that the
HoverJSON.importPath field can be removed.
Change-Id: I6edb3be3c37f479667c838beb49f97e7167b47a1
Reviewed-on: https://go-review.googlesource.com/c/tools/+/385016
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Hover on type specs was using the RHS of the type declaration and then
later rebuilding the declaration syntax. It was thereby dropping type
parameter lists.
Fix this by capturing the entire *TypeSpec for the signature, and
simply dropping comments from the node before formatting, so that they
are not duplicated.
Change-Id: I58724e65bd1f2aada1a5c04e4c61a059bed8357a
Reviewed-on: https://go-review.googlesource.com/c/tools/+/385015
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This CL adds a quickfix CodeAction that detects "missing method"
compiler errors and suggests adding method stubs to the concrete
type that would implement the interface. There are many ways that
a user might indicate a concrete type is meant to be used as an interface.
This PR detects two types of those errors: variable declaration and function returns.
For variable declarations, things like the following should be detected:
1. var _ SomeInterface = SomeType{}
2. var _ = SomeInterface(SomeType{})
3. var _ SomeInterface = (*SomeType)(nil)
For function returns, the following example is the primary detection:
func newIface() SomeInterface {
return &SomeType{}
}
More detections can be added in the future of course.
Fixesgolang/go#37537
Change-Id: Ibb7784622184c9885eff2ccc786767682876b4d3
Reviewed-on: https://go-review.googlesource.com/c/tools/+/274372
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This change adds support for full documentation of builtin types in the
hover info, consisting of the type declaration, a link to pkg.go.dev,
and the text of the doc comments in the `builtin` pseudo-package.
Full documentation for builtin functions was already supported.
Removes the special case for the `error` interface, which is not needed
and didn't provide the full documentation anyway, only the type
declaration.
The code has to determine the parent ast.GenDecl (which holds the doc
comments) for the ast.TypeSpec of a builtin type.
Fixesgolang/go#50196
Change-Id: I51a054cd7e864300ba2e51152311744b7bcf3e0c
Reviewed-on: https://go-review.googlesource.com/c/tools/+/383614
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This change adds a list of conventional acronyms that are used for function
completion. For example, "err" for "error" and "tx" for "sql.Tx" or "sqlx.Tx".
Fixesgolang/go#48260
Change-Id: Iff951ee58c0c95389d474cc45dfd84b483ff71e3
GitHub-Last-Rev: 05ccd5a2fe95e2e0504d28230308c4888477a977
GitHub-Pull-Request: golang/tools#363
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This change makes source.FormatVarType return the instantiated type
parameter instead of the actual AST expression because that will just
refer to the abstract type parameter and not the insantiated one.
I am not sure if this covers all edge cases or if there's a better
solution but I'm happy to adjust to whatever is appropriate.
Fixesgolang/go#50623
Change-Id: I6e0b2d93c47c9a0502f2995ca8d3668a9a31c056
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Make a couple of small changes to support keeping track of the
predeclared any by pointer identity, and formatting it as 'any'. This
should allow x/tools trybots to pass on CL 363974.
Updates golang/go#49583
Change-Id: I79cffee6adbf000a7251dbea4091fdd7b8fdcf0a
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If the selected region is a block statement, gopls
does not return a valid function extraction. This
change adjusts the range to be the statements inside
of the selected block statement.
Fixesgolang/go#48963
Change-Id: I9b1fb5005f961f30c1fa0333cd1f2050ed5eedef
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I missed the TODO in undeclaredname to add support for functions, so
really this belongs in that analyzer. This removes a fair bit of code.
However, the type error analyzers don't really work with the go/analysis
testing framework because the suggested fixes are split from the
diagnostics, so I moved the tests into the gopls tests.
Change-Id: I861a7ad531d2732fe698ee0ac46f23ad53b16812
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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
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Enable to hover runes found in basic literals in various forms.
When a rune is found, the hover message provides a summary composed of a
printable version (if it exists) of the rune, its codepoint and its name.
Behaviour varies slightly depending on the basic literal: rune literals
always display the summary when hovered, string literals only display it
when an escaped rune sequence is found to avoid providing unnecessary
information, and finally number literals only when expressed as a
hexadecimal number whose size ranges from one to eight bytes.
Fixesgolang/go#38239
Change-Id: I024fdd5c511a45c7c285e200ce1eda0669a45491
Reviewed-on: https://go-review.googlesource.com/c/tools/+/321810
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As per the current specification, the correct token name that represents methods is `method`. The current implementation does not produce the correct set of result and results in methods being incorrectly highlighted. Furthermore, the parameter names of interface methods are treated as `method` which is not true, so a fix has been applied to handle `ast.FuncType` being `parameter`.
Spec: https://microsoft.github.io/language-server-protocol/specifications/specification-3-16/#textDocument_semanticTokens
Change-Id: Id5d2fafe9f948a4a175ae19b4c94cca8f48a4b79
GitHub-Last-Rev: 9a3b65ca4dd3bb0542969c043a2042001c7fcb63
GitHub-Pull-Request: golang/tools#340
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For
import "a/bar/foo"
the existing code just decides the last component is the package name.
But for
import "a/bar/v2" this is incorrect, as the packge name is 'bar'.
The new code uses the result of parsing to derive the package name
from the import string.
That is, the package name was determined syntactically, it is
now determined semantically.
Fixes https://golang.org/issue/47784
Change-Id: Iccdd25e7e3f591e6514b1e0258e9e1879af9ff2d
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The lexicalLookup function is used to determine if
a use of an object would be shadowed by a different
definition after a rename. Switch to using LookupParent
which is more careful about the positions of the
identifiers.
Fixesgolang/go#47583
Change-Id: I3dbdf79e537ce637d1276ddbecb094db21f1c26d
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Coupling workspace symbols to package checking means that they do not
function when the workspace is contracted, and also forces us to do
duplicate work traversing file declarations.
This CL changes the workspace symbol implementation to precompute
symbols based only on syntactic information, allowing them to function
in degraded workspace mode, improving their performance, and laying the
groundwork for more significant performance improvement later on.
There is some loss of precision where we can't determine the kind of a
symbol from syntactic information alone, but this is minor: we fall back
on 'Class' if we can't determine whether a type definition is a basic
type, struct, or interface.
Benchmark ("test" in x/tools): 56ms->40ms
Benchmark ("test" in kuberneted): 874ms->799ms
Change-Id: Ic48df29b387bf029dd374d7d09720746bc27ae5e
Reviewed-on: https://go-review.googlesource.com/c/tools/+/338692
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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
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Previously, if the position was before the "." in a selector,
pathEnclosingObjNode would move the position to right after the
".". This created confusing behavior where editors would highlight
the identifier before the ".", but references and go to definition
would be applied on the identified after the selector. This change
removes the shifting of the position if found on a selector.
Fixesgolang/go#47408
Change-Id: If2504e7d5af2fae24b97c5c1e88b9cbe67aaaaf3
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Currently the `SignatureHelp` function provides signature help even when the
requested range lies within a string literal. Let's suppress this behavior and
return an error when someone requests signature help from within a string
literal.
Fixesgolang/go#43397
Signed-off-by: Karthik Nayak <karthik.188@gmail.com>
Change-Id: Ib03e87258622f4294bf9385bf5f0a8effe0050ee
GitHub-Last-Rev: 0c9549ae68b0263a3cac274da133e9ab4b4c7bf5
GitHub-Pull-Request: golang/tools#332
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"Extract method" allows users to take a code fragment and move it
to a separate method. This is available if the enclosing function
is a method.
Change-Id: Ib824f6b79b13ca73532223283a050946c90a47e7
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There is insufficient type information to compute semantic tokens in
packages that don't compile. Particularly affected are test files
and files being actively edited in new packages.
Further, existing code could
panic on poorly formed imports; this has been fixed.
Computing semantic tokens for identifiers
having neither use or definition information has been improved.
(Each of the many cases in the new function unkIdent() occurs
in existing code or test files.)
Change-Id: Id1b5db0622b17076de1ed23a950a20cd03c3750a
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*ast.AssignStmt doesn't have an associated comment group. So, we should
try to find and return a comment just before the identifier.
Fixesgolang/go#42134
Change-Id: Ie40717a4973ccfdbd99c3df891c2cfffbb21742d
GitHub-Last-Rev: da75fde2dbf3613f3325dbc5930dfc84ea813b90
GitHub-Pull-Request: golang/tools#323
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This reverts commit 5b540d349b.
Reason for revert: left in logging statements
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Error messages associated with bad parses and when working at the end
of the file are not useful to users, so they are no longer generated.
The logic around recognizing function calls has been improved, and
a panic sometimes caused by bad imports has been fixed.
The logic is imprecise/incorrect in some cases; there will be
another CL.
Change-Id: I72be3a0a003569fe06d458989e3dbbb46b7a22c0
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As an experiment, this CL introduces the first gopls feature that is
specific to generics: enriching function hover information with inferred
types. This is done with no additional gating on build constraints by
using the new internal/typeparams package.
The marker tests are updated to allow tests that rely on type parameters
being enabled.
Change-Id: Ic627d64b61a6211389196814edd0abe1484491eb
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For array, slice, maps and chan candidates, we now support
transforming them to their element type in completions. For example:
var m map[string]int
var _ int = m<>
At <> we complete to "m[]" because we see that the map value type
matches our expected type.
Fixesgolang/go#46045.
Change-Id: Ibee088550193a53744f93217cc365f67f301ae90
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Now we search up to three levels for candidate modifiers. For example,
we can now complete "foo" to "foo()()" (double invocation).
Granted this is rarely useful, but it generalizes and simplifies the
searching we did for dereference modifiers.
Updates golang/go#46045.
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"type mod" refers to agglutinative expressions such as dereference
"*", invocation "()", and slicing "[:]". When considering an object as
a completion candidate, we check whether applying a type mod would
make it a better candidate.
Previously we tracked the type mods we wanted to apply to a candidate
by setting bool fields. Now instead we keep a slice of the type mods.
This has two main advantages:
- The mods are now ordered which will allow us to format candidates
properly when the same mods can appear in different order (e.g.
"<-*foo" or *<-foo").
- We can now record any mod multiple times allowing for "<-<-foo" or
"foo()()".
I changed the formatting code to always create a snippet object since
that made things simpler. I had to tweak a few snippet helper methods
to accept a snippet argument rather than creating a new snippet.
This commit's only functional change is that we no longer show any
type mods in candidate labels. For example, the user will now see
"foo" in the completion popup instead of "*foo". Showing the operators
adds noise to the candidate list, and we didn't display them
consistently.
Updates golang/go#46045.
Change-Id: I3ea7baa1ee2fee80a1f8cfe88cbae1093ae269ba
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If new functions or variables need to be created during an extract
call, then we choose the new names. This change makes those names
more descriptive to make the generated names easier to read and
understand.
Before:
cond0, ret0 := fn0()
if cond0 {
return ret0
}
After
shouldReturn, returnValue := newFunction()
if shouldReturn {
return returnValue
}
Change-Id: I44795dc45185c75d5bf65e48378aa54d6c156212
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When choosing variable names, extract makes sure that the chosen
name does not conflict with any existing variables. By avoiding these
conflicts, we may actually have a conflict with the other names we
are choosing. This change removes this conflict by sending the next
index to use as the suffix of the function name.
Change-Id: Icd81b67db29db2503e214d24ec19ca1065cda090
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Block comments are a single comment that stretches across multiple
lines. The folding range code made assumptions that each comment
was a single line. This change fixes the folding range logic to check for multiline comments and adjust the folding range to start at
the end of the first line.
Fixesgolang/go#46253Fixesgolang/vscode-go#1511
Change-Id: I902f6cda7547cb1f8b4cd447152c3cf29a691d3b
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Currently we don't consider function literals in outgoing call
hierarchy, because we only consider expressions of type
`ast.SelectorExpr` and `ast.Ident`. So function literals are skipped.
Fix this by ensuring we traverse through other types even if we
don't add the type itself as an outgoing call hierarchy.
Fixesgolang/go#43438
Signed-off-by: Karthik Nayak <karthik.188@gmail.com>
Change-Id: I9eacbd5ec7a68224518bf0e405319adeb673c853
GitHub-Last-Rev: 3e7118a8fd090b339a3eacf32fa8d62e05a76b87
GitHub-Pull-Request: golang/tools#320
Reviewed-on: https://go-review.googlesource.com/c/tools/+/323809
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
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In cases like:
var foo func(...interface{})
var one int
var two func() (int, int)
foo(<>)
At <> we were preferring "two()" over "one" because we were really
excited that the multi return value function was usable. "one" was not
preferred because the expected value is interface{} (we default to
saying candidates _don't_ match interface{} to give non-type based
aspects of candidate inference a chance to shine).
Fix by applying the corresponding interface{} logic to the assignees
checking: ignore the case of completing into func(...interface{})
since all multi return value functions would match.
Fixesgolang/go#46378.
Change-Id: I355daa75e067e8b14508ca50b8d3b6b727df5fec
Reviewed-on: https://go-review.googlesource.com/c/tools/+/323509
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For example:
type foo struct { i int }
type bar struct { i int }
var _ foo = <>
Previously at <> we would offer "bar{}" in addition to "foo{}" because
we knew "bar" was convertible to "foo". The "bar{}" completion wasn't
valid as inserted, however, because we didn't include the type
conversion. Anyway, it doesn't make sense to include convertible types
since the directly matching type should also be available. Fix by
tweaking the literal candidate code to skip candidates requiring
conversion.
Fixesgolang/go#46113.
Change-Id: Ica5e4af7f2f8bb2f7e2361efe39694f8bb738c97
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This CL adds two new commands that let a client request a list of importable packages relative to a Go file and then select which import a programmer would like to add to said file.
Updates golang/go#43351
Change-Id: If12518874a92ed4167bdd711a92e03ee21c7b949
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- Use func.FullName() everywhere we can, since simply Printf or Errorf is often ambiguous.
- Give more specific error output when unsupported %w directive is used.
Change-Id: Ic2b423d87f9bedde459c79ce5aae622e9a4b5266
Reviewed-on: https://go-review.googlesource.com/c/tools/+/301949
Trust: Dmitri Shuralyov <dmitshur@golang.org>
Trust: Damien Neil <dneil@google.com>
Reviewed-by: Damien Neil <dneil@google.com>
If A is a type, then in
type B {
A
} it is a type, but in
type C {
A int
}
it is a variable (and similarly in function types). The old code got this wrong.
Fixes: golang/go#46068
Change-Id: Ib7320914de81d2b7377214f53f99f4fea25e00fb
Reviewed-on: https://go-review.googlesource.com/c/tools/+/318749
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Support typeDefinition for functions/methods that have only one return value
of a named type. The total number of return values doesn't matter.
Examples:
* func foo() X
* func foo() (X, bool, int)
* func foo() (*float64, *X, error)
Fixesgolang/go#38589
Change-Id: I8840d667437300fd1250a13630e12a36601f0a60
GitHub-Last-Rev: 581d810af959f8b2c0bf62a22e5725f32947f5e4
GitHub-Pull-Request: golang/tools#311
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In cases like:
append([]string{}, foo<>)
we now prefer objects of type string at <>. Previously we had no
preference. In particular, we now try to infer the slice type from the
first append() arg instead of only from the outer context of the
append() call.
Fixesgolang/go#43240.
Change-Id: I59dfa3b18892c5c87fc5ff53109f51f50ee03d26
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Due to the limitations of comments in ast, it is difficult to move
comments. The extract function feature currently does not handle
comments at all. This change instead prints the comments that would
have been lost above the call to the function, so that the user can
easily recover them. Otherwise, it was possible for users to lose
comments and not notice.
Updates golang/go#37170
Change-Id: I1e2d865f5deddefbb0417732490decbdfcde5f3d
Reviewed-on: https://go-review.googlesource.com/c/tools/+/313211
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If there is a return statement that is guaranteed to execute in
the selection to extract to function, then the result of calling
the extracted function can be directly returned.
Updates golang/go#37170
Change-Id: I6454e4107d670e4a1bc9048b2e1073fc80fc78ab
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In cases like:
foo.<>
bar = 123
We weren't detecting that the selector preceding <> was a statement.
The above is parsed as "foo.<>bar = 123", so it looks like <> is
contained in an AssignStmt. This matters because we give different
postfix completions depending on whether it is valid to replace the
surrounding selector with a statement or not.
Updates golang/go#45718.
Change-Id: I8f74505b2c8c7060f1e94433904ff0a987d0cc57
Reviewed-on: https://go-review.googlesource.com/c/tools/+/313269
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For example:
var b [4]byte
var s []byte = <>
At <> we now prefer "b" and insert as "b[:]".
Fixesgolang/go#40277.
Change-Id: I5fe9d153813dac7218edf31c7c33610130eef9bc
Reviewed-on: https://go-review.googlesource.com/c/tools/+/311169
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With unsafe.Slice about to be added, we'll get varying completions at
'unsafe.S_' depending on the Go version. Change the completion position
to be 'unsafe.Si_'.
Change-Id: Ib537fefceda7864b7a256565a3a7286d18e845c6
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Always use (*ast.TypeSpec).Type as a HoverInformation source.
Store a type name and an indication of whether it's a type alias
declaration as fields of HoverInformation.
Fixesgolang/go#45261
Change-Id: Ifbcdc15990379d0c73a419dd6cdf175d53dce925
GitHub-Last-Rev: 556dc94ab7d59fd251bbe0a537b19bc0fd7dd544
GitHub-Pull-Request: golang/tools#293
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Go to Type Definition works for all composite types except maps because
it is not clear which type to return if both key and value are named types.
Fixesgolang/go#45029
Change-Id: Ie14f333c51af11033e2494aaaac367d35e7dc87b
GitHub-Last-Rev: 94a04812eafe8c157819f0155ed7be2779437867
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Robert Findley
Marwan Sulaiman
fzipp
Shoshin Nikita
Rohan Verma
Suzy Mueller
Rebecca Stambler
Jean-Hadrien Chabran
Chitoku
pjw
Karthik Nayak
Muir Manders
johnnyjacobs