diff options
Diffstat (limited to 'src/cmd/vendor/golang.org/x/tools/internal/typeparams/notypeparams.go')
-rw-r--r-- | src/cmd/vendor/golang.org/x/tools/internal/typeparams/notypeparams.go | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/src/cmd/vendor/golang.org/x/tools/internal/typeparams/notypeparams.go b/src/cmd/vendor/golang.org/x/tools/internal/typeparams/notypeparams.go new file mode 100644 index 0000000000..e975e476f6 --- /dev/null +++ b/src/cmd/vendor/golang.org/x/tools/internal/typeparams/notypeparams.go @@ -0,0 +1,93 @@ +// Copyright 2021 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:build !typeparams || !go1.18 +// +build !typeparams !go1.18 + +package typeparams + +import ( + "go/ast" + "go/types" +) + +// NOTE: doc comments must be kept in sync with typeparams.go. + +// Enabled reports whether type parameters are enabled in the current build +// environment. +const Enabled = false + +// GetIndexExprData extracts data from AST nodes that represent index +// expressions. +// +// For an ast.IndexExpr, the resulting IndexExprData will have exactly one +// index expression. For an ast.MultiIndexExpr (go1.18+), it may have a +// variable number of index expressions. +// +// For nodes that don't represent index expressions, GetIndexExprData returns +// nil. +func GetIndexExprData(n ast.Node) *IndexExprData { + if e, _ := n.(*ast.IndexExpr); e != nil { + return &IndexExprData{ + X: e.X, + Lbrack: e.Lbrack, + Indices: []ast.Expr{e.Index}, + Rbrack: e.Rbrack, + } + } + return nil +} + +// ForTypeDecl extracts the (possibly nil) type parameter node list from n. +func ForTypeDecl(*ast.TypeSpec) *ast.FieldList { + return nil +} + +// ForFuncDecl extracts the (possibly nil) type parameter node list from n. +func ForFuncDecl(*ast.FuncDecl) *ast.FieldList { + return nil +} + +// ForSignature extracts the (possibly empty) type parameter object list from +// sig. +func ForSignature(*types.Signature) []*types.TypeName { + return nil +} + +// IsComparable reports if iface is the comparable interface. +func IsComparable(*types.Interface) bool { + return false +} + +// IsConstraint reports whether iface may only be used as a type parameter +// constraint (i.e. has a type set or is the comparable interface). +func IsConstraint(*types.Interface) bool { + return false +} + +// ForNamed extracts the (possibly empty) type parameter object list from +// named. +func ForNamed(*types.Named) []*types.TypeName { + return nil +} + +// NamedTArgs extracts the (possibly empty) type argument list from named. +func NamedTArgs(*types.Named) []types.Type { + return nil +} + +// InitInferred initializes info to record inferred type information. +func InitInferred(*types.Info) { +} + +// GetInferred extracts inferred type information from info for e. +// +// The expression e may have an inferred type if it is an *ast.IndexExpr +// representing partial instantiation of a generic function type for which type +// arguments have been inferred using constraint type inference, or if it is an +// *ast.CallExpr for which type type arguments have be inferred using both +// constraint type inference and function argument inference. +func GetInferred(*types.Info, ast.Expr) ([]types.Type, *types.Signature) { + return nil, nil +} |