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Diffstat (limited to 'vendor/golang.org/x/tools/internal/stdlib/stdlib.go')
-rw-r--r-- | vendor/golang.org/x/tools/internal/stdlib/stdlib.go | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/vendor/golang.org/x/tools/internal/stdlib/stdlib.go b/vendor/golang.org/x/tools/internal/stdlib/stdlib.go new file mode 100644 index 000000000..98904017f --- /dev/null +++ b/vendor/golang.org/x/tools/internal/stdlib/stdlib.go @@ -0,0 +1,97 @@ +// Copyright 2022 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. + +//go:generate go run generate.go + +// Package stdlib provides a table of all exported symbols in the +// standard library, along with the version at which they first +// appeared. +package stdlib + +import ( + "fmt" + "strings" +) + +type Symbol struct { + Name string + Kind Kind + Version Version // Go version that first included the symbol +} + +// A Kind indicates the kind of a symbol: +// function, variable, constant, type, and so on. +type Kind int8 + +const ( + Invalid Kind = iota // Example name: + Type // "Buffer" + Func // "Println" + Var // "EOF" + Const // "Pi" + Field // "Point.X" + Method // "(*Buffer).Grow" +) + +func (kind Kind) String() string { + return [...]string{ + Invalid: "invalid", + Type: "type", + Func: "func", + Var: "var", + Const: "const", + Field: "field", + Method: "method", + }[kind] +} + +// A Version represents a version of Go of the form "go1.%d". +type Version int8 + +// String returns a version string of the form "go1.23", without allocating. +func (v Version) String() string { return versions[v] } + +var versions [30]string // (increase constant as needed) + +func init() { + for i := range versions { + versions[i] = fmt.Sprintf("go1.%d", i) + } +} + +// HasPackage reports whether the specified package path is part of +// the standard library's public API. +func HasPackage(path string) bool { + _, ok := PackageSymbols[path] + return ok +} + +// SplitField splits the field symbol name into type and field +// components. It must be called only on Field symbols. +// +// Example: "File.Package" -> ("File", "Package") +func (sym *Symbol) SplitField() (typename, name string) { + if sym.Kind != Field { + panic("not a field") + } + typename, name, _ = strings.Cut(sym.Name, ".") + return +} + +// SplitMethod splits the method symbol name into pointer, receiver, +// and method components. It must be called only on Method symbols. +// +// Example: "(*Buffer).Grow" -> (true, "Buffer", "Grow") +func (sym *Symbol) SplitMethod() (ptr bool, recv, name string) { + if sym.Kind != Method { + panic("not a method") + } + recv, name, _ = strings.Cut(sym.Name, ".") + recv = recv[len("(") : len(recv)-len(")")] + ptr = recv[0] == '*' + if ptr { + recv = recv[len("*"):] + } + return +} |