diff --git a/vendor.mod b/vendor.mod index 26e8acc3da..c76d54f700 100644 --- a/vendor.mod +++ b/vendor.mod @@ -97,7 +97,7 @@ require ( go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.19.0 go.opentelemetry.io/otel/sdk v1.19.0 go.opentelemetry.io/otel/trace v1.19.0 - golang.org/x/mod v0.11.0 + golang.org/x/mod v0.13.0 golang.org/x/net v0.17.0 golang.org/x/sync v0.5.0 golang.org/x/sys v0.16.0 @@ -205,7 +205,7 @@ require ( golang.org/x/crypto v0.17.0 // indirect golang.org/x/exp v0.0.0-20230224173230-c95f2b4c22f2 // indirect golang.org/x/oauth2 v0.10.0 // indirect - golang.org/x/tools v0.10.0 // indirect + golang.org/x/tools v0.13.0 // indirect google.golang.org/api v0.126.0 // indirect google.golang.org/appengine v1.6.7 // indirect google.golang.org/genproto v0.0.0-20230711160842-782d3b101e98 // indirect diff --git a/vendor.sum b/vendor.sum index 8bf1a167ad..4a9b0dab9e 100644 --- a/vendor.sum +++ b/vendor.sum @@ -1435,8 +1435,8 @@ golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA= golang.org/x/mod v0.4.2/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA= golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4= golang.org/x/mod v0.7.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs= -golang.org/x/mod v0.11.0 h1:bUO06HqtnRcc/7l71XBe4WcqTZ+3AH1J59zWDDwLKgU= -golang.org/x/mod v0.11.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs= +golang.org/x/mod v0.13.0 h1:I/DsJXRlw/8l/0c24sM9yb0T4z9liZTduXvdAWYiysY= +golang.org/x/mod v0.13.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c= golang.org/x/net v0.0.0-20170114055629-f2499483f923/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4= golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4= golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4= @@ -1718,8 +1718,8 @@ golang.org/x/tools v0.1.2/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk= golang.org/x/tools v0.1.5/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk= golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc= golang.org/x/tools v0.4.0/go.mod h1:UE5sM2OK9E/d67R0ANs2xJizIymRP5gJU295PvKXxjQ= -golang.org/x/tools v0.10.0 h1:tvDr/iQoUqNdohiYm0LmmKcBk+q86lb9EprIUFhHHGg= -golang.org/x/tools v0.10.0/go.mod h1:UJwyiVBsOA2uwvK/e5OY3GTpDUJriEd+/YlqAwLPmyM= +golang.org/x/tools v0.13.0 h1:Iey4qkscZuv0VvIt8E0neZjtPVQFSc870HQ448QgEmQ= +golang.org/x/tools v0.13.0/go.mod h1:HvlwmtVNQAhOuCjW7xxvovg8wbNq7LwfXh/k7wXUl58= golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= diff --git a/vendor/golang.org/x/mod/internal/lazyregexp/lazyre.go b/vendor/golang.org/x/mod/internal/lazyregexp/lazyre.go index 2681af35af..150f887e7a 100644 --- a/vendor/golang.org/x/mod/internal/lazyregexp/lazyre.go +++ b/vendor/golang.org/x/mod/internal/lazyregexp/lazyre.go @@ -13,7 +13,7 @@ import ( "sync" ) -// Regexp is a wrapper around regexp.Regexp, where the underlying regexp will be +// Regexp is a wrapper around [regexp.Regexp], where the underlying regexp will be // compiled the first time it is needed. type Regexp struct { str string diff --git a/vendor/golang.org/x/mod/module/module.go b/vendor/golang.org/x/mod/module/module.go index e9dec6e614..2a364b229b 100644 --- a/vendor/golang.org/x/mod/module/module.go +++ b/vendor/golang.org/x/mod/module/module.go @@ -4,7 +4,7 @@ // Package module defines the module.Version type along with support code. // -// The module.Version type is a simple Path, Version pair: +// The [module.Version] type is a simple Path, Version pair: // // type Version struct { // Path string @@ -12,7 +12,7 @@ // } // // There are no restrictions imposed directly by use of this structure, -// but additional checking functions, most notably Check, verify that +// but additional checking functions, most notably [Check], verify that // a particular path, version pair is valid. // // # Escaped Paths @@ -140,7 +140,7 @@ type ModuleError struct { Err error } -// VersionError returns a ModuleError derived from a Version and error, +// VersionError returns a [ModuleError] derived from a [Version] and error, // or err itself if it is already such an error. func VersionError(v Version, err error) error { var mErr *ModuleError @@ -169,7 +169,7 @@ func (e *ModuleError) Unwrap() error { return e.Err } // An InvalidVersionError indicates an error specific to a version, with the // module path unknown or specified externally. // -// A ModuleError may wrap an InvalidVersionError, but an InvalidVersionError +// A [ModuleError] may wrap an InvalidVersionError, but an InvalidVersionError // must not wrap a ModuleError. type InvalidVersionError struct { Version string @@ -193,8 +193,8 @@ func (e *InvalidVersionError) Error() string { func (e *InvalidVersionError) Unwrap() error { return e.Err } // An InvalidPathError indicates a module, import, or file path doesn't -// satisfy all naming constraints. See CheckPath, CheckImportPath, -// and CheckFilePath for specific restrictions. +// satisfy all naming constraints. See [CheckPath], [CheckImportPath], +// and [CheckFilePath] for specific restrictions. type InvalidPathError struct { Kind string // "module", "import", or "file" Path string @@ -294,7 +294,7 @@ func fileNameOK(r rune) bool { } // CheckPath checks that a module path is valid. -// A valid module path is a valid import path, as checked by CheckImportPath, +// A valid module path is a valid import path, as checked by [CheckImportPath], // with three additional constraints. // First, the leading path element (up to the first slash, if any), // by convention a domain name, must contain only lower-case ASCII letters, @@ -380,7 +380,7 @@ const ( // checkPath returns an error describing why the path is not valid. // Because these checks apply to module, import, and file paths, // and because other checks may be applied, the caller is expected to wrap -// this error with InvalidPathError. +// this error with [InvalidPathError]. func checkPath(path string, kind pathKind) error { if !utf8.ValidString(path) { return fmt.Errorf("invalid UTF-8") @@ -532,7 +532,7 @@ var badWindowsNames = []string{ // they require ".vN" instead of "/vN", and for all N, not just N >= 2. // SplitPathVersion returns with ok = false when presented with // a path whose last path element does not satisfy the constraints -// applied by CheckPath, such as "example.com/pkg/v1" or "example.com/pkg/v1.2". +// applied by [CheckPath], such as "example.com/pkg/v1" or "example.com/pkg/v1.2". func SplitPathVersion(path string) (prefix, pathMajor string, ok bool) { if strings.HasPrefix(path, "gopkg.in/") { return splitGopkgIn(path) @@ -582,7 +582,7 @@ func splitGopkgIn(path string) (prefix, pathMajor string, ok bool) { // MatchPathMajor reports whether the semantic version v // matches the path major version pathMajor. // -// MatchPathMajor returns true if and only if CheckPathMajor returns nil. +// MatchPathMajor returns true if and only if [CheckPathMajor] returns nil. func MatchPathMajor(v, pathMajor string) bool { return CheckPathMajor(v, pathMajor) == nil } @@ -622,7 +622,7 @@ func CheckPathMajor(v, pathMajor string) error { // PathMajorPrefix returns the major-version tag prefix implied by pathMajor. // An empty PathMajorPrefix allows either v0 or v1. // -// Note that MatchPathMajor may accept some versions that do not actually begin +// Note that [MatchPathMajor] may accept some versions that do not actually begin // with this prefix: namely, it accepts a 'v0.0.0-' prefix for a '.v1' // pathMajor, even though that pathMajor implies 'v1' tagging. func PathMajorPrefix(pathMajor string) string { @@ -643,7 +643,7 @@ func PathMajorPrefix(pathMajor string) string { } // CanonicalVersion returns the canonical form of the version string v. -// It is the same as semver.Canonical(v) except that it preserves the special build suffix "+incompatible". +// It is the same as [semver.Canonical] except that it preserves the special build suffix "+incompatible". func CanonicalVersion(v string) string { cv := semver.Canonical(v) if semver.Build(v) == "+incompatible" { @@ -652,8 +652,8 @@ func CanonicalVersion(v string) string { return cv } -// Sort sorts the list by Path, breaking ties by comparing Version fields. -// The Version fields are interpreted as semantic versions (using semver.Compare) +// Sort sorts the list by Path, breaking ties by comparing [Version] fields. +// The Version fields are interpreted as semantic versions (using [semver.Compare]) // optionally followed by a tie-breaking suffix introduced by a slash character, // like in "v0.0.1/go.mod". func Sort(list []Version) { @@ -793,7 +793,7 @@ func unescapeString(escaped string) (string, bool) { } // MatchPrefixPatterns reports whether any path prefix of target matches one of -// the glob patterns (as defined by path.Match) in the comma-separated globs +// the glob patterns (as defined by [path.Match]) in the comma-separated globs // list. This implements the algorithm used when matching a module path to the // GOPRIVATE environment variable, as described by 'go help module-private'. // diff --git a/vendor/golang.org/x/mod/module/pseudo.go b/vendor/golang.org/x/mod/module/pseudo.go index f04ad37886..9cf19d3254 100644 --- a/vendor/golang.org/x/mod/module/pseudo.go +++ b/vendor/golang.org/x/mod/module/pseudo.go @@ -125,7 +125,7 @@ func IsPseudoVersion(v string) bool { } // IsZeroPseudoVersion returns whether v is a pseudo-version with a zero base, -// timestamp, and revision, as returned by ZeroPseudoVersion. +// timestamp, and revision, as returned by [ZeroPseudoVersion]. func IsZeroPseudoVersion(v string) bool { return v == ZeroPseudoVersion(semver.Major(v)) } diff --git a/vendor/golang.org/x/mod/semver/semver.go b/vendor/golang.org/x/mod/semver/semver.go index a30a22bf20..9a2dfd33a7 100644 --- a/vendor/golang.org/x/mod/semver/semver.go +++ b/vendor/golang.org/x/mod/semver/semver.go @@ -140,7 +140,7 @@ func Compare(v, w string) int { // Max canonicalizes its arguments and then returns the version string // that compares greater. // -// Deprecated: use Compare instead. In most cases, returning a canonicalized +// Deprecated: use [Compare] instead. In most cases, returning a canonicalized // version is not expected or desired. func Max(v, w string) string { v = Canonical(v) @@ -151,7 +151,7 @@ func Max(v, w string) string { return w } -// ByVersion implements sort.Interface for sorting semantic version strings. +// ByVersion implements [sort.Interface] for sorting semantic version strings. type ByVersion []string func (vs ByVersion) Len() int { return len(vs) } @@ -164,7 +164,7 @@ func (vs ByVersion) Less(i, j int) bool { return vs[i] < vs[j] } -// Sort sorts a list of semantic version strings using ByVersion. +// Sort sorts a list of semantic version strings using [ByVersion]. func Sort(list []string) { sort.Sort(ByVersion(list)) } diff --git a/vendor/golang.org/x/tools/go/internal/packagesdriver/sizes.go b/vendor/golang.org/x/tools/go/internal/packagesdriver/sizes.go index 18a002f82a..0454cdd78e 100644 --- a/vendor/golang.org/x/tools/go/internal/packagesdriver/sizes.go +++ b/vendor/golang.org/x/tools/go/internal/packagesdriver/sizes.go @@ -8,7 +8,6 @@ package packagesdriver import ( "context" "fmt" - "go/types" "strings" "golang.org/x/tools/internal/gocommand" @@ -16,7 +15,7 @@ import ( var debug = false -func GetSizesGolist(ctx context.Context, inv gocommand.Invocation, gocmdRunner *gocommand.Runner) (types.Sizes, error) { +func GetSizesForArgsGolist(ctx context.Context, inv gocommand.Invocation, gocmdRunner *gocommand.Runner) (string, string, error) { inv.Verb = "list" inv.Args = []string{"-f", "{{context.GOARCH}} {{context.Compiler}}", "--", "unsafe"} stdout, stderr, friendlyErr, rawErr := gocmdRunner.RunRaw(ctx, inv) @@ -29,21 +28,21 @@ func GetSizesGolist(ctx context.Context, inv gocommand.Invocation, gocmdRunner * inv.Args = []string{"GOARCH"} envout, enverr := gocmdRunner.Run(ctx, inv) if enverr != nil { - return nil, enverr + return "", "", enverr } goarch = strings.TrimSpace(envout.String()) compiler = "gc" } else { - return nil, friendlyErr + return "", "", friendlyErr } } else { fields := strings.Fields(stdout.String()) if len(fields) < 2 { - return nil, fmt.Errorf("could not parse GOARCH and Go compiler in format \" \":\nstdout: <<%s>>\nstderr: <<%s>>", + return "", "", fmt.Errorf("could not parse GOARCH and Go compiler in format \" \":\nstdout: <<%s>>\nstderr: <<%s>>", stdout.String(), stderr.String()) } goarch = fields[0] compiler = fields[1] } - return types.SizesFor(compiler, goarch), nil + return compiler, goarch, nil } diff --git a/vendor/golang.org/x/tools/go/packages/golist.go b/vendor/golang.org/x/tools/go/packages/golist.go index e84f19dfa9..b5de9cf9f2 100644 --- a/vendor/golang.org/x/tools/go/packages/golist.go +++ b/vendor/golang.org/x/tools/go/packages/golist.go @@ -9,7 +9,6 @@ import ( "context" "encoding/json" "fmt" - "go/types" "io/ioutil" "log" "os" @@ -153,10 +152,10 @@ func goListDriver(cfg *Config, patterns ...string) (*driverResponse, error) { if cfg.Mode&NeedTypesSizes != 0 || cfg.Mode&NeedTypes != 0 { sizeswg.Add(1) go func() { - var sizes types.Sizes - sizes, sizeserr = packagesdriver.GetSizesGolist(ctx, state.cfgInvocation(), cfg.gocmdRunner) - // types.SizesFor always returns nil or a *types.StdSizes. - response.dr.Sizes, _ = sizes.(*types.StdSizes) + compiler, arch, err := packagesdriver.GetSizesForArgsGolist(ctx, state.cfgInvocation(), cfg.gocmdRunner) + sizeserr = err + response.dr.Compiler = compiler + response.dr.Arch = arch sizeswg.Done() }() } @@ -671,6 +670,9 @@ func (state *golistState) createDriverResponse(words ...string) (*driverResponse // Temporary work-around for golang/go#39986. Parse filenames out of // error messages. This happens if there are unrecoverable syntax // errors in the source, so we can't match on a specific error message. + // + // TODO(rfindley): remove this heuristic, in favor of considering + // InvalidGoFiles from the list driver. if err := p.Error; err != nil && state.shouldAddFilenameFromError(p) { addFilenameFromPos := func(pos string) bool { split := strings.Split(pos, ":") diff --git a/vendor/golang.org/x/tools/go/packages/packages.go b/vendor/golang.org/x/tools/go/packages/packages.go index 632be722a2..124a6fe143 100644 --- a/vendor/golang.org/x/tools/go/packages/packages.go +++ b/vendor/golang.org/x/tools/go/packages/packages.go @@ -220,8 +220,10 @@ type driverResponse struct { // lists of multiple drivers, go/packages will fall back to the next driver. NotHandled bool - // Sizes, if not nil, is the types.Sizes to use when type checking. - Sizes *types.StdSizes + // Compiler and Arch are the arguments pass of types.SizesFor + // to get a types.Sizes to use when type checking. + Compiler string + Arch string // Roots is the set of package IDs that make up the root packages. // We have to encode this separately because when we encode a single package @@ -262,7 +264,7 @@ func Load(cfg *Config, patterns ...string) ([]*Package, error) { if err != nil { return nil, err } - l.sizes = response.Sizes + l.sizes = types.SizesFor(response.Compiler, response.Arch) return l.refine(response) } @@ -630,7 +632,7 @@ func newLoader(cfg *Config) *loader { return ld } -// refine connects the supplied packages into a graph and then adds type and +// refine connects the supplied packages into a graph and then adds type // and syntax information as requested by the LoadMode. func (ld *loader) refine(response *driverResponse) ([]*Package, error) { roots := response.Roots @@ -1043,6 +1045,9 @@ func (ld *loader) loadPackage(lpkg *loaderPackage) { Error: appendError, Sizes: ld.sizes, } + if lpkg.Module != nil && lpkg.Module.GoVersion != "" { + typesinternal.SetGoVersion(tc, "go"+lpkg.Module.GoVersion) + } if (ld.Mode & typecheckCgo) != 0 { if !typesinternal.SetUsesCgo(tc) { appendError(Error{ diff --git a/vendor/golang.org/x/tools/go/types/objectpath/objectpath.go b/vendor/golang.org/x/tools/go/types/objectpath/objectpath.go new file mode 100644 index 0000000000..fa5834baf7 --- /dev/null +++ b/vendor/golang.org/x/tools/go/types/objectpath/objectpath.go @@ -0,0 +1,827 @@ +// Copyright 2018 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// Package objectpath defines a naming scheme for types.Objects +// (that is, named entities in Go programs) relative to their enclosing +// package. +// +// Type-checker objects are canonical, so they are usually identified by +// their address in memory (a pointer), but a pointer has meaning only +// within one address space. By contrast, objectpath names allow the +// identity of an object to be sent from one program to another, +// establishing a correspondence between types.Object variables that are +// distinct but logically equivalent. +// +// A single object may have multiple paths. In this example, +// +// type A struct{ X int } +// type B A +// +// the field X has two paths due to its membership of both A and B. +// The For(obj) function always returns one of these paths, arbitrarily +// but consistently. +package objectpath + +import ( + "fmt" + "go/types" + "sort" + "strconv" + "strings" + _ "unsafe" + + "golang.org/x/tools/internal/typeparams" + "golang.org/x/tools/internal/typesinternal" +) + +// A Path is an opaque name that identifies a types.Object +// relative to its package. Conceptually, the name consists of a +// sequence of destructuring operations applied to the package scope +// to obtain the original object. +// The name does not include the package itself. +type Path string + +// Encoding +// +// An object path is a textual and (with training) human-readable encoding +// of a sequence of destructuring operators, starting from a types.Package. +// The sequences represent a path through the package/object/type graph. +// We classify these operators by their type: +// +// PO package->object Package.Scope.Lookup +// OT object->type Object.Type +// TT type->type Type.{Elem,Key,Params,Results,Underlying} [EKPRU] +// TO type->object Type.{At,Field,Method,Obj} [AFMO] +// +// All valid paths start with a package and end at an object +// and thus may be defined by the regular language: +// +// objectpath = PO (OT TT* TO)* +// +// The concrete encoding follows directly: +// - The only PO operator is Package.Scope.Lookup, which requires an identifier. +// - The only OT operator is Object.Type, +// which we encode as '.' because dot cannot appear in an identifier. +// - The TT operators are encoded as [EKPRUTC]; +// one of these (TypeParam) requires an integer operand, +// which is encoded as a string of decimal digits. +// - The TO operators are encoded as [AFMO]; +// three of these (At,Field,Method) require an integer operand, +// which is encoded as a string of decimal digits. +// These indices are stable across different representations +// of the same package, even source and export data. +// The indices used are implementation specific and may not correspond to +// the argument to the go/types function. +// +// In the example below, +// +// package p +// +// type T interface { +// f() (a string, b struct{ X int }) +// } +// +// field X has the path "T.UM0.RA1.F0", +// representing the following sequence of operations: +// +// p.Lookup("T") T +// .Type().Underlying().Method(0). f +// .Type().Results().At(1) b +// .Type().Field(0) X +// +// The encoding is not maximally compact---every R or P is +// followed by an A, for example---but this simplifies the +// encoder and decoder. +const ( + // object->type operators + opType = '.' // .Type() (Object) + + // type->type operators + opElem = 'E' // .Elem() (Pointer, Slice, Array, Chan, Map) + opKey = 'K' // .Key() (Map) + opParams = 'P' // .Params() (Signature) + opResults = 'R' // .Results() (Signature) + opUnderlying = 'U' // .Underlying() (Named) + opTypeParam = 'T' // .TypeParams.At(i) (Named, Signature) + opConstraint = 'C' // .Constraint() (TypeParam) + + // type->object operators + opAt = 'A' // .At(i) (Tuple) + opField = 'F' // .Field(i) (Struct) + opMethod = 'M' // .Method(i) (Named or Interface; not Struct: "promoted" names are ignored) + opObj = 'O' // .Obj() (Named, TypeParam) +) + +// For is equivalent to new(Encoder).For(obj). +// +// It may be more efficient to reuse a single Encoder across several calls. +func For(obj types.Object) (Path, error) { + return new(Encoder).For(obj) +} + +// An Encoder amortizes the cost of encoding the paths of multiple objects. +// The zero value of an Encoder is ready to use. +type Encoder struct { + scopeMemo map[*types.Scope][]types.Object // memoization of scopeObjects + namedMethodsMemo map[*types.Named][]*types.Func // memoization of namedMethods() + skipMethodSorting bool +} + +// Expose back doors so that gopls can avoid method sorting, which can dominate +// analysis on certain repositories. +// +// TODO(golang/go#61443): remove this. +func init() { + typesinternal.SkipEncoderMethodSorting = func(enc interface{}) { + enc.(*Encoder).skipMethodSorting = true + } + typesinternal.ObjectpathObject = object +} + +// For returns the path to an object relative to its package, +// or an error if the object is not accessible from the package's Scope. +// +// The For function guarantees to return a path only for the following objects: +// - package-level types +// - exported package-level non-types +// - methods +// - parameter and result variables +// - struct fields +// These objects are sufficient to define the API of their package. +// The objects described by a package's export data are drawn from this set. +// +// The set of objects accessible from a package's Scope depends on +// whether the package was produced by type-checking syntax, or +// reading export data; the latter may have a smaller Scope since +// export data trims objects that are not reachable from an exported +// declaration. For example, the For function will return a path for +// an exported method of an unexported type that is not reachable +// from any public declaration; this path will cause the Object +// function to fail if called on a package loaded from export data. +// TODO(adonovan): is this a bug or feature? Should this package +// compute accessibility in the same way? +// +// For does not return a path for predeclared names, imported package +// names, local names, and unexported package-level names (except +// types). +// +// Example: given this definition, +// +// package p +// +// type T interface { +// f() (a string, b struct{ X int }) +// } +// +// For(X) would return a path that denotes the following sequence of operations: +// +// p.Scope().Lookup("T") (TypeName T) +// .Type().Underlying().Method(0). (method Func f) +// .Type().Results().At(1) (field Var b) +// .Type().Field(0) (field Var X) +// +// where p is the package (*types.Package) to which X belongs. +func (enc *Encoder) For(obj types.Object) (Path, error) { + pkg := obj.Pkg() + + // This table lists the cases of interest. + // + // Object Action + // ------ ------ + // nil reject + // builtin reject + // pkgname reject + // label reject + // var + // package-level accept + // func param/result accept + // local reject + // struct field accept + // const + // package-level accept + // local reject + // func + // package-level accept + // init functions reject + // concrete method accept + // interface method accept + // type + // package-level accept + // local reject + // + // The only accessible package-level objects are members of pkg itself. + // + // The cases are handled in four steps: + // + // 1. reject nil and builtin + // 2. accept package-level objects + // 3. reject obviously invalid objects + // 4. search the API for the path to the param/result/field/method. + + // 1. reference to nil or builtin? + if pkg == nil { + return "", fmt.Errorf("predeclared %s has no path", obj) + } + scope := pkg.Scope() + + // 2. package-level object? + if scope.Lookup(obj.Name()) == obj { + // Only exported objects (and non-exported types) have a path. + // Non-exported types may be referenced by other objects. + if _, ok := obj.(*types.TypeName); !ok && !obj.Exported() { + return "", fmt.Errorf("no path for non-exported %v", obj) + } + return Path(obj.Name()), nil + } + + // 3. Not a package-level object. + // Reject obviously non-viable cases. + switch obj := obj.(type) { + case *types.TypeName: + if _, ok := obj.Type().(*typeparams.TypeParam); !ok { + // With the exception of type parameters, only package-level type names + // have a path. + return "", fmt.Errorf("no path for %v", obj) + } + case *types.Const, // Only package-level constants have a path. + *types.Label, // Labels are function-local. + *types.PkgName: // PkgNames are file-local. + return "", fmt.Errorf("no path for %v", obj) + + case *types.Var: + // Could be: + // - a field (obj.IsField()) + // - a func parameter or result + // - a local var. + // Sadly there is no way to distinguish + // a param/result from a local + // so we must proceed to the find. + + case *types.Func: + // A func, if not package-level, must be a method. + if recv := obj.Type().(*types.Signature).Recv(); recv == nil { + return "", fmt.Errorf("func is not a method: %v", obj) + } + + if path, ok := enc.concreteMethod(obj); ok { + // Fast path for concrete methods that avoids looping over scope. + return path, nil + } + + default: + panic(obj) + } + + // 4. Search the API for the path to the var (field/param/result) or method. + + // First inspect package-level named types. + // In the presence of path aliases, these give + // the best paths because non-types may + // refer to types, but not the reverse. + empty := make([]byte, 0, 48) // initial space + objs := enc.scopeObjects(scope) + for _, o := range objs { + tname, ok := o.(*types.TypeName) + if !ok { + continue // handle non-types in second pass + } + + path := append(empty, o.Name()...) + path = append(path, opType) + + T := o.Type() + + if tname.IsAlias() { + // type alias + if r := find(obj, T, path, nil); r != nil { + return Path(r), nil + } + } else { + if named, _ := T.(*types.Named); named != nil { + if r := findTypeParam(obj, typeparams.ForNamed(named), path, nil); r != nil { + // generic named type + return Path(r), nil + } + } + // defined (named) type + if r := find(obj, T.Underlying(), append(path, opUnderlying), nil); r != nil { + return Path(r), nil + } + } + } + + // Then inspect everything else: + // non-types, and declared methods of defined types. + for _, o := range objs { + path := append(empty, o.Name()...) + if _, ok := o.(*types.TypeName); !ok { + if o.Exported() { + // exported non-type (const, var, func) + if r := find(obj, o.Type(), append(path, opType), nil); r != nil { + return Path(r), nil + } + } + continue + } + + // Inspect declared methods of defined types. + if T, ok := o.Type().(*types.Named); ok { + path = append(path, opType) + if !enc.skipMethodSorting { + // Note that method index here is always with respect + // to canonical ordering of methods, regardless of how + // they appear in the underlying type. + for i, m := range enc.namedMethods(T) { + path2 := appendOpArg(path, opMethod, i) + if m == obj { + return Path(path2), nil // found declared method + } + if r := find(obj, m.Type(), append(path2, opType), nil); r != nil { + return Path(r), nil + } + } + } else { + // This branch must match the logic in the branch above, using go/types + // APIs without sorting. + for i := 0; i < T.NumMethods(); i++ { + m := T.Method(i) + path2 := appendOpArg(path, opMethod, i) + if m == obj { + return Path(path2), nil // found declared method + } + if r := find(obj, m.Type(), append(path2, opType), nil); r != nil { + return Path(r), nil + } + } + } + } + } + + return "", fmt.Errorf("can't find path for %v in %s", obj, pkg.Path()) +} + +func appendOpArg(path []byte, op byte, arg int) []byte { + path = append(path, op) + path = strconv.AppendInt(path, int64(arg), 10) + return path +} + +// concreteMethod returns the path for meth, which must have a non-nil receiver. +// The second return value indicates success and may be false if the method is +// an interface method or if it is an instantiated method. +// +// This function is just an optimization that avoids the general scope walking +// approach. You are expected to fall back to the general approach if this +// function fails. +func (enc *Encoder) concreteMethod(meth *types.Func) (Path, bool) { + // Concrete methods can only be declared on package-scoped named types. For + // that reason we can skip the expensive walk over the package scope: the + // path will always be package -> named type -> method. We can trivially get + // the type name from the receiver, and only have to look over the type's + // methods to find the method index. + // + // Methods on generic types require special consideration, however. Consider + // the following package: + // + // L1: type S[T any] struct{} + // L2: func (recv S[A]) Foo() { recv.Bar() } + // L3: func (recv S[B]) Bar() { } + // L4: type Alias = S[int] + // L5: func _[T any]() { var s S[int]; s.Foo() } + // + // The receivers of methods on generic types are instantiations. L2 and L3 + // instantiate S with the type-parameters A and B, which are scoped to the + // respective methods. L4 and L5 each instantiate S with int. Each of these + // instantiations has its own method set, full of methods (and thus objects) + // with receivers whose types are the respective instantiations. In other + // words, we have + // + // S[A].Foo, S[A].Bar + // S[B].Foo, S[B].Bar + // S[int].Foo, S[int].Bar + // + // We may thus be trying to produce object paths for any of these objects. + // + // S[A].Foo and S[B].Bar are the origin methods, and their paths are S.Foo + // and S.Bar, which are the paths that this function naturally produces. + // + // S[A].Bar, S[B].Foo, and both methods on S[int] are instantiations that + // don't correspond to the origin methods. For S[int], this is significant. + // The most precise object path for S[int].Foo, for example, is Alias.Foo, + // not S.Foo. Our function, however, would produce S.Foo, which would + // resolve to a different object. + // + // For S[A].Bar and S[B].Foo it could be argued that S.Bar and S.Foo are + // still the correct paths, since only the origin methods have meaningful + // paths. But this is likely only true for trivial cases and has edge cases. + // Since this function is only an optimization, we err on the side of giving + // up, deferring to the slower but definitely correct algorithm. Most users + // of objectpath will only be giving us origin methods, anyway, as referring + // to instantiated methods is usually not useful. + + if typeparams.OriginMethod(meth) != meth { + return "", false + } + + recvT := meth.Type().(*types.Signature).Recv().Type() + if ptr, ok := recvT.(*types.Pointer); ok { + recvT = ptr.Elem() + } + + named, ok := recvT.(*types.Named) + if !ok { + return "", false + } + + if types.IsInterface(named) { + // Named interfaces don't have to be package-scoped + // + // TODO(dominikh): opt: if scope.Lookup(name) == named, then we can apply this optimization to interface + // methods, too, I think. + return "", false + } + + // Preallocate space for the name, opType, opMethod, and some digits. + name := named.Obj().Name() + path := make([]byte, 0, len(name)+8) + path = append(path, name...) + path = append(path, opType) + + if !enc.skipMethodSorting { + for i, m := range enc.namedMethods(named) { + if m == meth { + path = appendOpArg(path, opMethod, i) + return Path(path), true + } + } + } else { + // This branch must match the logic of the branch above, using go/types + // APIs without sorting. + for i := 0; i < named.NumMethods(); i++ { + m := named.Method(i) + if m == meth { + path = appendOpArg(path, opMethod, i) + return Path(path), true + } + } + } + + // Due to golang/go#59944, go/types fails to associate the receiver with + // certain methods on cgo types. + // + // TODO(rfindley): replace this panic once golang/go#59944 is fixed in all Go + // versions gopls supports. + return "", false + // panic(fmt.Sprintf("couldn't find method %s on type %s; methods: %#v", meth, named, enc.namedMethods(named))) +} + +// find finds obj within type T, returning the path to it, or nil if not found. +// +// The seen map is used to short circuit cycles through type parameters. If +// nil, it will be allocated as necessary. +func find(obj types.Object, T types.Type, path []byte, seen map[*types.TypeName]bool) []byte { + switch T := T.(type) { + case *types.Basic, *types.Named: + // Named types belonging to pkg were handled already, + // so T must belong to another package. No path. + return nil + case *types.Pointer: + return find(obj, T.Elem(), append(path, opElem), seen) + case *types.Slice: + return find(obj, T.Elem(), append(path, opElem), seen) + case *types.Array: + return find(obj, T.Elem(), append(path, opElem), seen) + case *types.Chan: + return find(obj, T.Elem(), append(path, opElem), seen) + case *types.Map: + if r := find(obj, T.Key(), append(path, opKey), seen); r != nil { + return r + } + return find(obj, T.Elem(), append(path, opElem), seen) + case *types.Signature: + if r := findTypeParam(obj, typeparams.ForSignature(T), path, seen); r != nil { + return r + } + if r := find(obj, T.Params(), append(path, opParams), seen); r != nil { + return r + } + return find(obj, T.Results(), append(path, opResults), seen) + case *types.Struct: + for i := 0; i < T.NumFields(); i++ { + fld := T.Field(i) + path2 := appendOpArg(path, opField, i) + if fld == obj { + return path2 // found field var + } + if r := find(obj, fld.Type(), append(path2, opType), seen); r != nil { + return r + } + } + return nil + case *types.Tuple: + for i := 0; i < T.Len(); i++ { + v := T.At(i) + path2 := appendOpArg(path, opAt, i) + if v == obj { + return path2 // found param/result var + } + if r := find(obj, v.Type(), append(path2, opType), seen); r != nil { + return r + } + } + return nil + case *types.Interface: + for i := 0; i < T.NumMethods(); i++ { + m := T.Method(i) + path2 := appendOpArg(path, opMethod, i) + if m == obj { + return path2 // found interface method + } + if r := find(obj, m.Type(), append(path2, opType), seen); r != nil { + return r + } + } + return nil + case *typeparams.TypeParam: + name := T.Obj() + if name == obj { + return append(path, opObj) + } + if seen[name] { + return nil + } + if seen == nil { + seen = make(map[*types.TypeName]bool) + } + seen[name] = true + if r := find(obj, T.Constraint(), append(path, opConstraint), seen); r != nil { + return r + } + return nil + } + panic(T) +} + +func findTypeParam(obj types.Object, list *typeparams.TypeParamList, path []byte, seen map[*types.TypeName]bool) []byte { + for i := 0; i < list.Len(); i++ { + tparam := list.At(i) + path2 := appendOpArg(path, opTypeParam, i) + if r := find(obj, tparam, path2, seen); r != nil { + return r + } + } + return nil +} + +// Object returns the object denoted by path p within the package pkg. +func Object(pkg *types.Package, p Path) (types.Object, error) { + return object(pkg, string(p), false) +} + +// Note: the skipMethodSorting parameter must match the value of +// Encoder.skipMethodSorting used during encoding. +func object(pkg *types.Package, pathstr string, skipMethodSorting bool) (types.Object, error) { + if pathstr == "" { + return nil, fmt.Errorf("empty path") + } + + var pkgobj, suffix string + if dot := strings.IndexByte(pathstr, opType); dot < 0 { + pkgobj = pathstr + } else { + pkgobj = pathstr[:dot] + suffix = pathstr[dot:] // suffix starts with "." + } + + obj := pkg.Scope().Lookup(pkgobj) + if obj == nil { + return nil, fmt.Errorf("package %s does not contain %q", pkg.Path(), pkgobj) + } + + // abstraction of *types.{Pointer,Slice,Array,Chan,Map} + type hasElem interface { + Elem() types.Type + } + // abstraction of *types.{Named,Signature} + type hasTypeParams interface { + TypeParams() *typeparams.TypeParamList + } + // abstraction of *types.{Named,TypeParam} + type hasObj interface { + Obj() *types.TypeName + } + + // The loop state is the pair (t, obj), + // exactly one of which is non-nil, initially obj. + // All suffixes start with '.' (the only object->type operation), + // followed by optional type->type operations, + // then a type->object operation. + // The cycle then repeats. + var t types.Type + for suffix != "" { + code := suffix[0] + suffix = suffix[1:] + + // Codes [AFM] have an integer operand. + var index int + switch code { + case opAt, opField, opMethod, opTypeParam: + rest := strings.TrimLeft(suffix, "0123456789") + numerals := suffix[:len(suffix)-len(rest)] + suffix = rest + i, err := strconv.Atoi(numerals) + if err != nil { + return nil, fmt.Errorf("invalid path: bad numeric operand %q for code %q", numerals, code) + } + index = int(i) + case opObj: + // no operand + default: + // The suffix must end with a type->object operation. + if suffix == "" { + return nil, fmt.Errorf("invalid path: ends with %q, want [AFMO]", code) + } + } + + if code == opType { + if t != nil { + return nil, fmt.Errorf("invalid path: unexpected %q in type context", opType) + } + t = obj.Type() + obj = nil + continue + } + + if t == nil { + return nil, fmt.Errorf("invalid path: code %q in object context", code) + } + + // Inv: t != nil, obj == nil + + switch code { + case opElem: + hasElem, ok := t.(hasElem) // Pointer, Slice, Array, Chan, Map + if !ok { + return nil, fmt.Errorf("cannot apply %q to %s (got %T, want pointer, slice, array, chan or map)", code, t, t) + } + t = hasElem.Elem() + + case opKey: + mapType, ok := t.(*types.Map) + if !ok { + return nil, fmt.Errorf("cannot apply %q to %s (got %T, want map)", code, t, t) + } + t = mapType.Key() + + case opParams: + sig, ok := t.(*types.Signature) + if !ok { + return nil, fmt.Errorf("cannot apply %q to %s (got %T, want signature)", code, t, t) + } + t = sig.Params() + + case opResults: + sig, ok := t.(*types.Signature) + if !ok { + return nil, fmt.Errorf("cannot apply %q to %s (got %T, want signature)", code, t, t) + } + t = sig.Results() + + case opUnderlying: + named, ok := t.(*types.Named) + if !ok { + return nil, fmt.Errorf("cannot apply %q to %s (got %T, want named)", code, t, t) + } + t = named.Underlying() + + case opTypeParam: + hasTypeParams, ok := t.(hasTypeParams) // Named, Signature + if !ok { + return nil, fmt.Errorf("cannot apply %q to %s (got %T, want named or signature)", code, t, t) + } + tparams := hasTypeParams.TypeParams() + if n := tparams.Len(); index >= n { + return nil, fmt.Errorf("tuple index %d out of range [0-%d)", index, n) + } + t = tparams.At(index) + + case opConstraint: + tparam, ok := t.(*typeparams.TypeParam) + if !ok { + return nil, fmt.Errorf("cannot apply %q to %s (got %T, want type parameter)", code, t, t) + } + t = tparam.Constraint() + + case opAt: + tuple, ok := t.(*types.Tuple) + if !ok { + return nil, fmt.Errorf("cannot apply %q to %s (got %T, want tuple)", code, t, t) + } + if n := tuple.Len(); index >= n { + return nil, fmt.Errorf("tuple index %d out of range [0-%d)", index, n) + } + obj = tuple.At(index) + t = nil + + case opField: + structType, ok := t.(*types.Struct) + if !ok { + return nil, fmt.Errorf("cannot apply %q to %s (got %T, want struct)", code, t, t) + } + if n := structType.NumFields(); index >= n { + return nil, fmt.Errorf("field index %d out of range [0-%d)", index, n) + } + obj = structType.Field(index) + t = nil + + case opMethod: + switch t := t.(type) { + case *types.Interface: + if index >= t.NumMethods() { + return nil, fmt.Errorf("method index %d out of range [0-%d)", index, t.NumMethods()) + } + obj = t.Method(index) // Id-ordered + + case *types.Named: + if index >= t.NumMethods() { + return nil, fmt.Errorf("method index %d out of range [0-%d)", index, t.NumMethods()) + } + if skipMethodSorting { + obj = t.Method(index) + } else { + methods := namedMethods(t) // (unmemoized) + obj = methods[index] // Id-ordered + } + + default: + return nil, fmt.Errorf("cannot apply %q to %s (got %T, want interface or named)", code, t, t) + } + t = nil + + case opObj: + hasObj, ok := t.(hasObj) + if !ok { + return nil, fmt.Errorf("cannot apply %q to %s (got %T, want named or type param)", code, t, t) + } + obj = hasObj.Obj() + t = nil + + default: + return nil, fmt.Errorf("invalid path: unknown code %q", code) + } + } + + if obj.Pkg() != pkg { + return nil, fmt.Errorf("path denotes %s, which belongs to a different package", obj) + } + + return obj, nil // success +} + +// namedMethods returns the methods of a Named type in ascending Id order. +func namedMethods(named *types.Named) []*types.Func { + methods := make([]*types.Func, named.NumMethods()) + for i := range methods { + methods[i] = named.Method(i) + } + sort.Slice(methods, func(i, j int) bool { + return methods[i].Id() < methods[j].Id() + }) + return methods +} + +// namedMethods is a memoization of the namedMethods function. Callers must not modify the result. +func (enc *Encoder) namedMethods(named *types.Named) []*types.Func { + m := enc.namedMethodsMemo + if m == nil { + m = make(map[*types.Named][]*types.Func) + enc.namedMethodsMemo = m + } + methods, ok := m[named] + if !ok { + methods = namedMethods(named) // allocates and sorts + m[named] = methods + } + return methods +} + +// scopeObjects is a memoization of scope objects. +// Callers must not modify the result. +func (enc *Encoder) scopeObjects(scope *types.Scope) []types.Object { + m := enc.scopeMemo + if m == nil { + m = make(map[*types.Scope][]types.Object) + enc.scopeMemo = m + } + objs, ok := m[scope] + if !ok { + names := scope.Names() // allocates and sorts + objs = make([]types.Object, len(names)) + for i, name := range names { + objs[i] = scope.Lookup(name) + } + m[scope] = objs + } + return objs +} diff --git a/vendor/golang.org/x/tools/internal/event/tag/tag.go b/vendor/golang.org/x/tools/internal/event/tag/tag.go index ff2f2ecd38..581b26c204 100644 --- a/vendor/golang.org/x/tools/internal/event/tag/tag.go +++ b/vendor/golang.org/x/tools/internal/event/tag/tag.go @@ -19,7 +19,7 @@ var ( File = keys.NewString("file", "") Directory = keys.New("directory", "") URI = keys.New("URI", "") - Package = keys.NewString("package", "") // Package ID + Package = keys.NewString("package", "") // sorted comma-separated list of Package IDs PackagePath = keys.NewString("package_path", "") Query = keys.New("query", "") Snapshot = keys.NewUInt64("snapshot", "") diff --git a/vendor/golang.org/x/tools/internal/gcimporter/iexport.go b/vendor/golang.org/x/tools/internal/gcimporter/iexport.go index 3fc7989c08..6103dd7102 100644 --- a/vendor/golang.org/x/tools/internal/gcimporter/iexport.go +++ b/vendor/golang.org/x/tools/internal/gcimporter/iexport.go @@ -22,17 +22,23 @@ import ( "strconv" "strings" + "golang.org/x/tools/go/types/objectpath" "golang.org/x/tools/internal/tokeninternal" "golang.org/x/tools/internal/typeparams" ) // IExportShallow encodes "shallow" export data for the specified package. // -// No promises are made about the encoding other than that it can be -// decoded by the same version of IIExportShallow. If you plan to save -// export data in the file system, be sure to include a cryptographic -// digest of the executable in the key to avoid version skew. -func IExportShallow(fset *token.FileSet, pkg *types.Package) ([]byte, error) { +// No promises are made about the encoding other than that it can be decoded by +// the same version of IIExportShallow. If you plan to save export data in the +// file system, be sure to include a cryptographic digest of the executable in +// the key to avoid version skew. +// +// If the provided reportf func is non-nil, it will be used for reporting bugs +// encountered during export. +// TODO(rfindley): remove reportf when we are confident enough in the new +// objectpath encoding. +func IExportShallow(fset *token.FileSet, pkg *types.Package, reportf ReportFunc) ([]byte, error) { // In principle this operation can only fail if out.Write fails, // but that's impossible for bytes.Buffer---and as a matter of // fact iexportCommon doesn't even check for I/O errors. @@ -47,19 +53,27 @@ func IExportShallow(fset *token.FileSet, pkg *types.Package) ([]byte, error) { // IImportShallow decodes "shallow" types.Package data encoded by // IExportShallow in the same executable. This function cannot import data from // cmd/compile or gcexportdata.Write. -func IImportShallow(fset *token.FileSet, getPackage GetPackageFunc, data []byte, path string, insert InsertType) (*types.Package, error) { +// +// The importer calls getPackages to obtain package symbols for all +// packages mentioned in the export data, including the one being +// decoded. +// +// If the provided reportf func is non-nil, it will be used for reporting bugs +// encountered during import. +// TODO(rfindley): remove reportf when we are confident enough in the new +// objectpath encoding. +func IImportShallow(fset *token.FileSet, getPackages GetPackagesFunc, data []byte, path string, reportf ReportFunc) (*types.Package, error) { const bundle = false - pkgs, err := iimportCommon(fset, getPackage, data, bundle, path, insert) + const shallow = true + pkgs, err := iimportCommon(fset, getPackages, data, bundle, path, shallow, reportf) if err != nil { return nil, err } return pkgs[0], nil } -// InsertType is the type of a function that creates a types.TypeName -// object for a named type and inserts it into the scope of the -// specified Package. -type InsertType = func(pkg *types.Package, name string) +// ReportFunc is the type of a function used to report formatted bugs. +type ReportFunc = func(string, ...interface{}) // Current bundled export format version. Increase with each format change. // 0: initial implementation @@ -313,8 +327,9 @@ type iexporter struct { out *bytes.Buffer version int - shallow bool // don't put types from other packages in the index - localpkg *types.Package // (nil in bundle mode) + shallow bool // don't put types from other packages in the index + objEncoder *objectpath.Encoder // encodes objects from other packages in shallow mode; lazily allocated + localpkg *types.Package // (nil in bundle mode) // allPkgs tracks all packages that have been referenced by // the export data, so we can ensure to include them in the @@ -354,6 +369,17 @@ func (p *iexporter) trace(format string, args ...interface{}) { fmt.Printf(strings.Repeat("..", p.indent)+format+"\n", args...) } +// objectpathEncoder returns the lazily allocated objectpath.Encoder to use +// when encoding objects in other packages during shallow export. +// +// Using a shared Encoder amortizes some of cost of objectpath search. +func (p *iexporter) objectpathEncoder() *objectpath.Encoder { + if p.objEncoder == nil { + p.objEncoder = new(objectpath.Encoder) + } + return p.objEncoder +} + // stringOff returns the offset of s within the string section. // If not already present, it's added to the end. func (p *iexporter) stringOff(s string) uint64 { @@ -413,7 +439,6 @@ type exportWriter struct { p *iexporter data intWriter - currPkg *types.Package prevFile string prevLine int64 prevColumn int64 @@ -436,7 +461,6 @@ func (p *iexporter) doDecl(obj types.Object) { }() } w := p.newWriter() - w.setPkg(obj.Pkg(), false) switch obj := obj.(type) { case *types.Var: @@ -673,6 +697,9 @@ func (w *exportWriter) qualifiedType(obj *types.TypeName) { w.pkg(obj.Pkg()) } +// TODO(rfindley): what does 'pkg' even mean here? It would be better to pass +// it in explicitly into signatures and structs that may use it for +// constructing fields. func (w *exportWriter) typ(t types.Type, pkg *types.Package) { w.data.uint64(w.p.typOff(t, pkg)) } @@ -764,30 +791,53 @@ func (w *exportWriter) doTyp(t types.Type, pkg *types.Package) { case *types.Signature: w.startType(signatureType) - w.setPkg(pkg, true) + w.pkg(pkg) w.signature(t) case *types.Struct: w.startType(structType) n := t.NumFields() + // Even for struct{} we must emit some qualifying package, because that's + // what the compiler does, and thus that's what the importer expects. + fieldPkg := pkg if n > 0 { - w.setPkg(t.Field(0).Pkg(), true) // qualifying package for field objects - } else { - w.setPkg(pkg, true) + fieldPkg = t.Field(0).Pkg() } + if fieldPkg == nil { + // TODO(rfindley): improve this very hacky logic. + // + // The importer expects a package to be set for all struct types, even + // those with no fields. A better encoding might be to set NumFields + // before pkg. setPkg panics with a nil package, which may be possible + // to reach with invalid packages (and perhaps valid packages, too?), so + // (arbitrarily) set the localpkg if available. + // + // Alternatively, we may be able to simply guarantee that pkg != nil, by + // reconsidering the encoding of constant values. + if w.p.shallow { + fieldPkg = w.p.localpkg + } else { + panic(internalErrorf("no package to set for empty struct")) + } + } + w.pkg(fieldPkg) w.uint64(uint64(n)) + for i := 0; i < n; i++ { f := t.Field(i) + if w.p.shallow { + w.objectPath(f) + } w.pos(f.Pos()) w.string(f.Name()) // unexported fields implicitly qualified by prior setPkg - w.typ(f.Type(), pkg) + w.typ(f.Type(), fieldPkg) w.bool(f.Anonymous()) w.string(t.Tag(i)) // note (or tag) } case *types.Interface: w.startType(interfaceType) - w.setPkg(pkg, true) + w.pkg(pkg) n := t.NumEmbeddeds() w.uint64(uint64(n)) @@ -802,10 +852,16 @@ func (w *exportWriter) doTyp(t types.Type, pkg *types.Package) { w.typ(ft, tPkg) } + // See comment for struct fields. In shallow mode we change the encoding + // for interface methods that are promoted from other packages. + n = t.NumExplicitMethods() w.uint64(uint64(n)) for i := 0; i < n; i++ { m := t.ExplicitMethod(i) + if w.p.shallow { + w.objectPath(m) + } w.pos(m.Pos()) w.string(m.Name()) sig, _ := m.Type().(*types.Signature) @@ -827,12 +883,61 @@ func (w *exportWriter) doTyp(t types.Type, pkg *types.Package) { } } -func (w *exportWriter) setPkg(pkg *types.Package, write bool) { - if write { - w.pkg(pkg) +// objectPath writes the package and objectPath to use to look up obj in a +// different package, when encoding in "shallow" mode. +// +// When doing a shallow import, the importer creates only the local package, +// and requests package symbols for dependencies from the client. +// However, certain types defined in the local package may hold objects defined +// (perhaps deeply) within another package. +// +// For example, consider the following: +// +// package a +// func F() chan * map[string] struct { X int } +// +// package b +// import "a" +// var B = a.F() +// +// In this example, the type of b.B holds fields defined in package a. +// In order to have the correct canonical objects for the field defined in the +// type of B, they are encoded as objectPaths and later looked up in the +// importer. The same problem applies to interface methods. +func (w *exportWriter) objectPath(obj types.Object) { + if obj.Pkg() == nil || obj.Pkg() == w.p.localpkg { + // obj.Pkg() may be nil for the builtin error.Error. + // In this case, or if obj is declared in the local package, no need to + // encode. + w.string("") + return } - - w.currPkg = pkg + objectPath, err := w.p.objectpathEncoder().For(obj) + if err != nil { + // Fall back to the empty string, which will cause the importer to create a + // new object, which matches earlier behavior. Creating a new object is + // sufficient for many purposes (such as type checking), but causes certain + // references algorithms to fail (golang/go#60819). However, we didn't + // notice this problem during months of gopls@v0.12.0 testing. + // + // TODO(golang/go#61674): this workaround is insufficient, as in the case + // where the field forwarded from an instantiated type that may not appear + // in the export data of the original package: + // + // // package a + // type A[P any] struct{ F P } + // + // // package b + // type B a.A[int] + // + // We need to update references algorithms not to depend on this + // de-duplication, at which point we may want to simply remove the + // workaround here. + w.string("") + return + } + w.string(string(objectPath)) + w.pkg(obj.Pkg()) } func (w *exportWriter) signature(sig *types.Signature) { @@ -1205,6 +1310,13 @@ type internalError string func (e internalError) Error() string { return "gcimporter: " + string(e) } +// TODO(adonovan): make this call panic, so that it's symmetric with errorf. +// Otherwise it's easy to forget to do anything with the error. +// +// TODO(adonovan): also, consider switching the names "errorf" and +// "internalErrorf" as the former is used for bugs, whose cause is +// internal inconsistency, whereas the latter is used for ordinary +// situations like bad input, whose cause is external. func internalErrorf(format string, args ...interface{}) error { return internalError(fmt.Sprintf(format, args...)) } diff --git a/vendor/golang.org/x/tools/internal/gcimporter/iimport.go b/vendor/golang.org/x/tools/internal/gcimporter/iimport.go index 94a5eba333..8e64cf644f 100644 --- a/vendor/golang.org/x/tools/internal/gcimporter/iimport.go +++ b/vendor/golang.org/x/tools/internal/gcimporter/iimport.go @@ -21,6 +21,7 @@ import ( "sort" "strings" + "golang.org/x/tools/go/types/objectpath" "golang.org/x/tools/internal/typeparams" ) @@ -85,7 +86,7 @@ const ( // If the export data version is not recognized or the format is otherwise // compromised, an error is returned. func IImportData(fset *token.FileSet, imports map[string]*types.Package, data []byte, path string) (int, *types.Package, error) { - pkgs, err := iimportCommon(fset, GetPackageFromMap(imports), data, false, path, nil) + pkgs, err := iimportCommon(fset, GetPackagesFromMap(imports), data, false, path, false, nil) if err != nil { return 0, nil, err } @@ -94,33 +95,49 @@ func IImportData(fset *token.FileSet, imports map[string]*types.Package, data [] // IImportBundle imports a set of packages from the serialized package bundle. func IImportBundle(fset *token.FileSet, imports map[string]*types.Package, data []byte) ([]*types.Package, error) { - return iimportCommon(fset, GetPackageFromMap(imports), data, true, "", nil) + return iimportCommon(fset, GetPackagesFromMap(imports), data, true, "", false, nil) } -// A GetPackageFunc is a function that gets the package with the given path -// from the importer state, creating it (with the specified name) if necessary. -// It is an abstraction of the map historically used to memoize package creation. +// A GetPackagesFunc function obtains the non-nil symbols for a set of +// packages, creating and recursively importing them as needed. An +// implementation should store each package symbol is in the Pkg +// field of the items array. // -// Two calls with the same path must return the same package. -// -// If the given getPackage func returns nil, the import will fail. -type GetPackageFunc = func(path, name string) *types.Package +// Any error causes importing to fail. This can be used to quickly read +// the import manifest of an export data file without fully decoding it. +type GetPackagesFunc = func(items []GetPackagesItem) error -// GetPackageFromMap returns a GetPackageFunc that retrieves packages from the -// given map of package path -> package. +// A GetPackagesItem is a request from the importer for the package +// symbol of the specified name and path. +type GetPackagesItem struct { + Name, Path string + Pkg *types.Package // to be filled in by GetPackagesFunc call + + // private importer state + pathOffset uint64 + nameIndex map[string]uint64 +} + +// GetPackagesFromMap returns a GetPackagesFunc that retrieves +// packages from the given map of package path to package. // -// The resulting func may mutate m: if a requested package is not found, a new -// package will be inserted into m. -func GetPackageFromMap(m map[string]*types.Package) GetPackageFunc { - return func(path, name string) *types.Package { - if _, ok := m[path]; !ok { - m[path] = types.NewPackage(path, name) +// The returned function may mutate m: each requested package that is not +// found is created with types.NewPackage and inserted into m. +func GetPackagesFromMap(m map[string]*types.Package) GetPackagesFunc { + return func(items []GetPackagesItem) error { + for i, item := range items { + pkg, ok := m[item.Path] + if !ok { + pkg = types.NewPackage(item.Path, item.Name) + m[item.Path] = pkg + } + items[i].Pkg = pkg } - return m[path] + return nil } } -func iimportCommon(fset *token.FileSet, getPackage GetPackageFunc, data []byte, bundle bool, path string, insert InsertType) (pkgs []*types.Package, err error) { +func iimportCommon(fset *token.FileSet, getPackages GetPackagesFunc, data []byte, bundle bool, path string, shallow bool, reportf ReportFunc) (pkgs []*types.Package, err error) { const currentVersion = iexportVersionCurrent version := int64(-1) if !debug { @@ -159,7 +176,7 @@ func iimportCommon(fset *token.FileSet, getPackage GetPackageFunc, data []byte, sLen := int64(r.uint64()) var fLen int64 var fileOffset []uint64 - if insert != nil { + if shallow { // Shallow mode uses a different position encoding. fLen = int64(r.uint64()) fileOffset = make([]uint64, r.uint64()) @@ -178,7 +195,8 @@ func iimportCommon(fset *token.FileSet, getPackage GetPackageFunc, data []byte, p := iimporter{ version: int(version), ipath: path, - insert: insert, + shallow: shallow, + reportf: reportf, stringData: stringData, stringCache: make(map[uint64]string), @@ -205,8 +223,9 @@ func iimportCommon(fset *token.FileSet, getPackage GetPackageFunc, data []byte, p.typCache[uint64(i)] = pt } - pkgList := make([]*types.Package, r.uint64()) - for i := range pkgList { + // Gather the relevant packages from the manifest. + items := make([]GetPackagesItem, r.uint64()) + for i := range items { pkgPathOff := r.uint64() pkgPath := p.stringAt(pkgPathOff) pkgName := p.stringAt(r.uint64()) @@ -215,29 +234,42 @@ func iimportCommon(fset *token.FileSet, getPackage GetPackageFunc, data []byte, if pkgPath == "" { pkgPath = path } - pkg := getPackage(pkgPath, pkgName) - if pkg == nil { - errorf("internal error: getPackage returned nil package for %s", pkgPath) - } else if pkg.Name() != pkgName { - errorf("conflicting names %s and %s for package %q", pkg.Name(), pkgName, path) - } - if i == 0 && !bundle { - p.localpkg = pkg - } - - p.pkgCache[pkgPathOff] = pkg + items[i].Name = pkgName + items[i].Path = pkgPath + items[i].pathOffset = pkgPathOff // Read index for package. nameIndex := make(map[string]uint64) nSyms := r.uint64() - // In shallow mode we don't expect an index for other packages. - assert(nSyms == 0 || p.localpkg == pkg || p.insert == nil) + // In shallow mode, only the current package (i=0) has an index. + assert(!(shallow && i > 0 && nSyms != 0)) for ; nSyms > 0; nSyms-- { name := p.stringAt(r.uint64()) nameIndex[name] = r.uint64() } - p.pkgIndex[pkg] = nameIndex + items[i].nameIndex = nameIndex + } + + // Request packages all at once from the client, + // enabling a parallel implementation. + if err := getPackages(items); err != nil { + return nil, err // don't wrap this error + } + + // Check the results and complete the index. + pkgList := make([]*types.Package, len(items)) + for i, item := range items { + pkg := item.Pkg + if pkg == nil { + errorf("internal error: getPackages returned nil package for %q", item.Path) + } else if pkg.Path() != item.Path { + errorf("internal error: getPackages returned wrong path %q, want %q", pkg.Path(), item.Path) + } else if pkg.Name() != item.Name { + errorf("internal error: getPackages returned wrong name %s for package %q, want %s", pkg.Name(), item.Path, item.Name) + } + p.pkgCache[item.pathOffset] = pkg + p.pkgIndex[pkg] = item.nameIndex pkgList[i] = pkg } @@ -296,6 +328,13 @@ func iimportCommon(fset *token.FileSet, getPackage GetPackageFunc, data []byte, typ.Complete() } + // Workaround for golang/go#61561. See the doc for instanceList for details. + for _, typ := range p.instanceList { + if iface, _ := typ.Underlying().(*types.Interface); iface != nil { + iface.Complete() + } + } + return pkgs, nil } @@ -308,8 +347,8 @@ type iimporter struct { version int ipath string - localpkg *types.Package - insert func(pkg *types.Package, name string) // "shallow" mode only + shallow bool + reportf ReportFunc // if non-nil, used to report bugs stringData []byte stringCache map[uint64]string @@ -326,6 +365,12 @@ type iimporter struct { fake fakeFileSet interfaceList []*types.Interface + // Workaround for the go/types bug golang/go#61561: instances produced during + // instantiation may contain incomplete interfaces. Here we only complete the + // underlying type of the instance, which is the most common case but doesn't + // handle parameterized interface literals defined deeper in the type. + instanceList []types.Type // instances for later completion (see golang/go#61561) + // Arguments for calls to SetConstraint that are deferred due to recursive types later []setConstraintArgs @@ -357,13 +402,9 @@ func (p *iimporter) doDecl(pkg *types.Package, name string) { off, ok := p.pkgIndex[pkg][name] if !ok { - // In "shallow" mode, call back to the application to - // find the object and insert it into the package scope. - if p.insert != nil { - assert(pkg != p.localpkg) - p.insert(pkg, name) // "can't fail" - return - } + // In deep mode, the index should be complete. In shallow + // mode, we should have already recursively loaded necessary + // dependencies so the above Lookup succeeds. errorf("%v.%v not in index", pkg, name) } @@ -730,7 +771,8 @@ func (r *importReader) qualifiedIdent() (*types.Package, string) { } func (r *importReader) pos() token.Pos { - if r.p.insert != nil { // shallow mode + if r.p.shallow { + // precise offsets are encoded only in shallow mode return r.posv2() } if r.p.version >= iexportVersionPosCol { @@ -831,13 +873,28 @@ func (r *importReader) doType(base *types.Named) (res types.Type) { fields := make([]*types.Var, r.uint64()) tags := make([]string, len(fields)) for i := range fields { + var field *types.Var + if r.p.shallow { + field, _ = r.objectPathObject().(*types.Var) + } + fpos := r.pos() fname := r.ident() ftyp := r.typ() emb := r.bool() tag := r.string() - fields[i] = types.NewField(fpos, r.currPkg, fname, ftyp, emb) + // Either this is not a shallow import, the field is local, or the + // encoded objectPath failed to produce an object (a bug). + // + // Even in this last, buggy case, fall back on creating a new field. As + // discussed in iexport.go, this is not correct, but mostly works and is + // preferable to failing (for now at least). + if field == nil { + field = types.NewField(fpos, r.currPkg, fname, ftyp, emb) + } + + fields[i] = field tags[i] = tag } return types.NewStruct(fields, tags) @@ -853,6 +910,11 @@ func (r *importReader) doType(base *types.Named) (res types.Type) { methods := make([]*types.Func, r.uint64()) for i := range methods { + var method *types.Func + if r.p.shallow { + method, _ = r.objectPathObject().(*types.Func) + } + mpos := r.pos() mname := r.ident() @@ -862,9 +924,12 @@ func (r *importReader) doType(base *types.Named) (res types.Type) { if base != nil { recv = types.NewVar(token.NoPos, r.currPkg, "", base) } - msig := r.signature(recv, nil, nil) - methods[i] = types.NewFunc(mpos, r.currPkg, mname, msig) + + if method == nil { + method = types.NewFunc(mpos, r.currPkg, mname, msig) + } + methods[i] = method } typ := newInterface(methods, embeddeds) @@ -902,6 +967,9 @@ func (r *importReader) doType(base *types.Named) (res types.Type) { // we must always use the methods of the base (orig) type. // TODO provide a non-nil *Environment t, _ := typeparams.Instantiate(nil, baseType, targs, false) + + // Workaround for golang/go#61561. See the doc for instanceList for details. + r.p.instanceList = append(r.p.instanceList, t) return t case unionType: @@ -920,6 +988,26 @@ func (r *importReader) kind() itag { return itag(r.uint64()) } +// objectPathObject is the inverse of exportWriter.objectPath. +// +// In shallow mode, certain fields and methods may need to be looked up in an +// imported package. See the doc for exportWriter.objectPath for a full +// explanation. +func (r *importReader) objectPathObject() types.Object { + objPath := objectpath.Path(r.string()) + if objPath == "" { + return nil + } + pkg := r.pkg() + obj, err := objectpath.Object(pkg, objPath) + if err != nil { + if r.p.reportf != nil { + r.p.reportf("failed to find object for objectPath %q: %v", objPath, err) + } + } + return obj +} + func (r *importReader) signature(recv *types.Var, rparams []*typeparams.TypeParam, tparams []*typeparams.TypeParam) *types.Signature { params := r.paramList() results := r.paramList() diff --git a/vendor/golang.org/x/tools/internal/gocommand/invoke.go b/vendor/golang.org/x/tools/internal/gocommand/invoke.go index 8d9fc98d8f..53cf66da01 100644 --- a/vendor/golang.org/x/tools/internal/gocommand/invoke.go +++ b/vendor/golang.org/x/tools/internal/gocommand/invoke.go @@ -319,7 +319,7 @@ func runCmdContext(ctx context.Context, cmd *exec.Cmd) (err error) { // Per https://pkg.go.dev/os#File.Close, the call to stdoutR.Close // should cause the Read call in io.Copy to unblock and return // immediately, but we still need to receive from stdoutErr to confirm - // that that has happened. + // that it has happened. <-stdoutErr err2 = ctx.Err() } @@ -333,7 +333,7 @@ func runCmdContext(ctx context.Context, cmd *exec.Cmd) (err error) { // one goroutine at a time will call Write.” // // Since we're starting a goroutine that writes to cmd.Stdout, we must - // also update cmd.Stderr so that that still holds. + // also update cmd.Stderr so that it still holds. func() { defer func() { recover() }() if cmd.Stderr == prevStdout { diff --git a/vendor/golang.org/x/tools/internal/typeparams/common.go b/vendor/golang.org/x/tools/internal/typeparams/common.go index b9e87c691a..d0d0649fe2 100644 --- a/vendor/golang.org/x/tools/internal/typeparams/common.go +++ b/vendor/golang.org/x/tools/internal/typeparams/common.go @@ -23,6 +23,7 @@ package typeparams import ( + "fmt" "go/ast" "go/token" "go/types" @@ -125,6 +126,11 @@ func OriginMethod(fn *types.Func) *types.Func { } } + // In golang/go#61196, we observe another crash, this time inexplicable. + if gfn == nil { + panic(fmt.Sprintf("missing origin method for %s.%s; named == origin: %t, named.NumMethods(): %d, origin.NumMethods(): %d", named, fn, named == orig, named.NumMethods(), orig.NumMethods())) + } + return gfn.(*types.Func) } diff --git a/vendor/golang.org/x/tools/internal/typeparams/coretype.go b/vendor/golang.org/x/tools/internal/typeparams/coretype.go index 993135ec90..71248209ee 100644 --- a/vendor/golang.org/x/tools/internal/typeparams/coretype.go +++ b/vendor/golang.org/x/tools/internal/typeparams/coretype.go @@ -81,13 +81,13 @@ func CoreType(T types.Type) types.Type { // restrictions may be arbitrarily complex. For example, consider the // following: // -// type A interface{ ~string|~[]byte } +// type A interface{ ~string|~[]byte } // -// type B interface{ int|string } +// type B interface{ int|string } // -// type C interface { ~string|~int } +// type C interface { ~string|~int } // -// type T[P interface{ A|B; C }] int +// type T[P interface{ A|B; C }] int // // In this example, the structural type restriction of P is ~string|int: A|B // expands to ~string|~[]byte|int|string, which reduces to ~string|~[]byte|int, diff --git a/vendor/golang.org/x/tools/internal/typeparams/termlist.go b/vendor/golang.org/x/tools/internal/typeparams/termlist.go index 933106a23d..cbd12f8013 100644 --- a/vendor/golang.org/x/tools/internal/typeparams/termlist.go +++ b/vendor/golang.org/x/tools/internal/typeparams/termlist.go @@ -30,7 +30,7 @@ func (xl termlist) String() string { var buf bytes.Buffer for i, x := range xl { if i > 0 { - buf.WriteString(" ∪ ") + buf.WriteString(" | ") } buf.WriteString(x.String()) } diff --git a/vendor/golang.org/x/tools/internal/typeparams/typeparams_go117.go b/vendor/golang.org/x/tools/internal/typeparams/typeparams_go117.go index b4788978ff..7ed86e1711 100644 --- a/vendor/golang.org/x/tools/internal/typeparams/typeparams_go117.go +++ b/vendor/golang.org/x/tools/internal/typeparams/typeparams_go117.go @@ -129,7 +129,7 @@ func NamedTypeArgs(*types.Named) *TypeList { } // NamedTypeOrigin is the identity method at this Go version. -func NamedTypeOrigin(named *types.Named) types.Type { +func NamedTypeOrigin(named *types.Named) *types.Named { return named } diff --git a/vendor/golang.org/x/tools/internal/typeparams/typeparams_go118.go b/vendor/golang.org/x/tools/internal/typeparams/typeparams_go118.go index 114a36b866..cf301af1db 100644 --- a/vendor/golang.org/x/tools/internal/typeparams/typeparams_go118.go +++ b/vendor/golang.org/x/tools/internal/typeparams/typeparams_go118.go @@ -103,7 +103,7 @@ func NamedTypeArgs(named *types.Named) *TypeList { } // NamedTypeOrigin returns named.Orig(). -func NamedTypeOrigin(named *types.Named) types.Type { +func NamedTypeOrigin(named *types.Named) *types.Named { return named.Origin() } diff --git a/vendor/golang.org/x/tools/internal/typeparams/typeterm.go b/vendor/golang.org/x/tools/internal/typeparams/typeterm.go index 7ddee28d98..7350bb702a 100644 --- a/vendor/golang.org/x/tools/internal/typeparams/typeterm.go +++ b/vendor/golang.org/x/tools/internal/typeparams/typeterm.go @@ -10,11 +10,10 @@ import "go/types" // A term describes elementary type sets: // -// ∅: (*term)(nil) == ∅ // set of no types (empty set) -// 𝓤: &term{} == 𝓤 // set of all types (𝓤niverse) -// T: &term{false, T} == {T} // set of type T -// ~t: &term{true, t} == {t' | under(t') == t} // set of types with underlying type t -// +// ∅: (*term)(nil) == ∅ // set of no types (empty set) +// 𝓤: &term{} == 𝓤 // set of all types (𝓤niverse) +// T: &term{false, T} == {T} // set of type T +// ~t: &term{true, t} == {t' | under(t') == t} // set of types with underlying type t type term struct { tilde bool // valid if typ != nil typ types.Type diff --git a/vendor/golang.org/x/tools/internal/typesinternal/objectpath.go b/vendor/golang.org/x/tools/internal/typesinternal/objectpath.go new file mode 100644 index 0000000000..5e96e89557 --- /dev/null +++ b/vendor/golang.org/x/tools/internal/typesinternal/objectpath.go @@ -0,0 +1,24 @@ +// Copyright 2023 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package typesinternal + +import "go/types" + +// This file contains back doors that allow gopls to avoid method sorting when +// using the objectpath package. +// +// This is performance-critical in certain repositories, but changing the +// behavior of the objectpath package is still being discussed in +// golang/go#61443. If we decide to remove the sorting in objectpath we can +// simply delete these back doors. Otherwise, we should add a new API to +// objectpath that allows controlling the sorting. + +// SkipEncoderMethodSorting marks enc (which must be an *objectpath.Encoder) as +// not requiring sorted methods. +var SkipEncoderMethodSorting func(enc interface{}) + +// ObjectpathObject is like objectpath.Object, but allows suppressing method +// sorting. +var ObjectpathObject func(pkg *types.Package, p string, skipMethodSorting bool) (types.Object, error) diff --git a/vendor/modules.txt b/vendor/modules.txt index 8c07376e88..8bbf675e2d 100644 --- a/vendor/modules.txt +++ b/vendor/modules.txt @@ -1246,8 +1246,8 @@ golang.org/x/crypto/ssh/internal/bcrypt_pbkdf golang.org/x/exp/constraints golang.org/x/exp/maps golang.org/x/exp/slices -# golang.org/x/mod v0.11.0 -## explicit; go 1.17 +# golang.org/x/mod v0.13.0 +## explicit; go 1.18 golang.org/x/mod/internal/lazyregexp golang.org/x/mod/module golang.org/x/mod/semver @@ -1307,12 +1307,13 @@ golang.org/x/text/unicode/norm # golang.org/x/time v0.3.0 ## explicit golang.org/x/time/rate -# golang.org/x/tools v0.10.0 +# golang.org/x/tools v0.13.0 ## explicit; go 1.18 golang.org/x/tools/cmd/stringer golang.org/x/tools/go/gcexportdata golang.org/x/tools/go/internal/packagesdriver golang.org/x/tools/go/packages +golang.org/x/tools/go/types/objectpath golang.org/x/tools/internal/event golang.org/x/tools/internal/event/core golang.org/x/tools/internal/event/keys