Update to Go 1.18 (#11)

Author: cristaloleg

astcopy.go

@@ -3,8 +3,6 @@ package astcopy
 
 import (
 	"go/ast"
-
-	"golang.org/x/exp/typeparams"
 )
 
 // Node returns x node deep copy.
@@ -198,7 +196,7 @@ func IndexExpr(x *ast.IndexExpr) *ast.IndexExpr {
 
 // IndexListExpr returns x deep copy.
 // Copy of nil argument is nil.
-func IndexListExpr(x *typeparams.IndexListExpr) *typeparams.IndexListExpr {
+func IndexListExpr(x *ast.IndexListExpr) *ast.IndexListExpr {
 	if x == nil {
 		return nil
 	}
@@ -787,6 +785,34 @@ func FuncDecl(x *ast.FuncDecl) *ast.FuncDecl {
 	return &cp
 }
 
+// FuncType returns x deep copy.
+// Copy of nil argument is nil.
+func FuncType(x *ast.FuncType) *ast.FuncType {
+	if x == nil {
+		return nil
+	}
+	cp := *x
+	cp.Params = FieldList(x.Params)
+	cp.Results = FieldList(x.Results)
+	cp.TypeParams = FieldList(x.TypeParams)
+	return &cp
+}
+
+// TypeSpec returns x deep copy.
+// Copy of nil argument is nil.
+func TypeSpec(x *ast.TypeSpec) *ast.TypeSpec {
+	if x == nil {
+		return nil
+	}
+	cp := *x
+	cp.Name = Ident(x.Name)
+	cp.Type = copyExpr(x.Type)
+	cp.Doc = CommentGroup(x.Doc)
+	cp.Comment = CommentGroup(x.Comment)
+	cp.TypeParams = FieldList(x.TypeParams)
+	return &cp
+}
+
 func copyNode(x ast.Node) ast.Node {
 	switch x := x.(type) {
 	case ast.Expr:
@@ -838,7 +864,7 @@ func copyExpr(x ast.Expr) ast.Expr {
 		return SelectorExpr(x)
 	case *ast.IndexExpr:
 		return IndexExpr(x)
-	case *typeparams.IndexListExpr:
+	case *ast.IndexListExpr:
 		return IndexListExpr(x)
 	case *ast.SliceExpr:
 		return SliceExpr(x)

astcopy_go117.go

@@ -1,9 +1,10 @@
 module github.com/go-toolsmith/astcopy
 
-go 1.16
+go 1.18
 
 require (
-	github.com/go-toolsmith/astequal v1.1.0
+	github.com/go-toolsmith/astequal v1.2.0
 	github.com/go-toolsmith/strparse v1.1.0
-	golang.org/x/exp/typeparams v0.0.0-20230203172020-98cc5a0785f9
 )
+
+require github.com/google/go-cmp v0.6.0 // indirect

astcopy_go118.go

@@ -1,9 +1,9 @@
 github.com/go-toolsmith/astequal v1.0.3/go.mod h1:9Ai4UglvtR+4up+bAD4+hCj7iTo4m/OXVTSLnCyTAx4=
-github.com/go-toolsmith/astequal v1.1.0 h1:kHKm1AWqClYn15R0K1KKE4RG614D46n+nqUQ06E1dTw=
-github.com/go-toolsmith/astequal v1.1.0/go.mod h1:sedf7VIdCL22LD8qIvv7Nn9MuWJruQA/ysswh64lffQ=
+github.com/go-toolsmith/astequal v1.2.0 h1:3Fs3CYZ1k9Vo4FzFhwwewC3CHISHDnVUPC4x0bI2+Cw=
+github.com/go-toolsmith/astequal v1.2.0/go.mod h1:c8NZ3+kSFtFY/8lPso4v8LuJjdJiUFVnSuU3s0qrrDY=
 github.com/go-toolsmith/strparse v1.0.0/go.mod h1:YI2nUKP9YGZnL/L1/DLFBfixrcjslWct4wyljWhSRy8=
 github.com/go-toolsmith/strparse v1.1.0 h1:GAioeZUK9TGxnLS+qfdqNbA4z0SSm5zVNtCQiyP2Bvw=
 github.com/go-toolsmith/strparse v1.1.0/go.mod h1:7ksGy58fsaQkGQlY8WVoBFNyEPMGuJin1rfoPS4lBSQ=
+github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
+github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 golang.org/x/exp/typeparams v0.0.0-20220428152302-39d4317da171/go.mod h1:AbB0pIl9nAr9wVwH+Z2ZpaocVmF5I4GyWCDIsVjR0bk=
-golang.org/x/exp/typeparams v0.0.0-20230203172020-98cc5a0785f9 h1:6WHiuFL9FNjg8RljAaT7FNUuKDbvMqS1i5cr2OE2sLQ=
-golang.org/x/exp/typeparams v0.0.0-20230203172020-98cc5a0785f9/go.mod h1:AbB0pIl9nAr9wVwH+Z2ZpaocVmF5I4GyWCDIsVjR0bk=