Update quic-go

vendor/golang.org/x/mod/modfile/rule.go

@@ -43,7 +43,6 @@ type File struct {
 	Exclude   []*Exclude
 	Replace   []*Replace
 	Retract   []*Retract
-	Tool      []*Tool
 
 	Syntax *FileSyntax
 }
@@ -94,12 +93,6 @@ type Retract struct {
 	Syntax    *Line
 }
 
-// A Tool is a single tool statement.
-type Tool struct {
-	Path   string
-	Syntax *Line
-}
-
 // A VersionInterval represents a range of versions with upper and lower bounds.
 // Intervals are closed: both bounds are included. When Low is equal to High,
 // the interval may refer to a single version ('v1.2.3') or an interval
@@ -304,7 +297,7 @@ func parseToFile(file string, data []byte, fix VersionFixer, strict bool) (parse
 					})
 				}
 				continue
-			case "module", "godebug", "require", "exclude", "replace", "retract", "tool":
+			case "module", "godebug", "require", "exclude", "replace", "retract":
 				for _, l := range x.Line {
 					f.add(&errs, x, l, x.Token[0], l.Token, fix, strict)
 				}
@@ -516,21 +509,6 @@ func (f *File) add(errs *ErrorList, block *LineBlock, line *Line, verb string, a
 			Syntax:          line,
 		}
 		f.Retract = append(f.Retract, retract)
-
-	case "tool":
-		if len(args) != 1 {
-			errorf("tool directive expects exactly one argument")
-			return
-		}
-		s, err := parseString(&args[0])
-		if err != nil {
-			errorf("invalid quoted string: %v", err)
-			return
-		}
-		f.Tool = append(f.Tool, &Tool{
-			Path:   s,
-			Syntax: line,
-		})
 	}
 }
 
@@ -1589,36 +1567,6 @@ func (f *File) DropRetract(vi VersionInterval) error {
 	return nil
 }
 
-// AddTool adds a new tool directive with the given path.
-// It does nothing if the tool line already exists.
-func (f *File) AddTool(path string) error {
-	for _, t := range f.Tool {
-		if t.Path == path {
-			return nil
-		}
-	}
-
-	f.Tool = append(f.Tool, &Tool{
-		Path:   path,
-		Syntax: f.Syntax.addLine(nil, "tool", path),
-	})
-
-	f.SortBlocks()
-	return nil
-}
-
-// RemoveTool removes a tool directive with the given path.
-// It does nothing if no such tool directive exists.
-func (f *File) DropTool(path string) error {
-	for _, t := range f.Tool {
-		if t.Path == path {
-			t.Syntax.markRemoved()
-			*t = Tool{}
-		}
-	}
-	return nil
-}
-
 func (f *File) SortBlocks() {
 	f.removeDups() // otherwise sorting is unsafe
 
@@ -1645,9 +1593,9 @@ func (f *File) SortBlocks() {
 	}
 }
 
-// removeDups removes duplicate exclude, replace and tool directives.
+// removeDups removes duplicate exclude and replace directives.
 //
-// Earlier exclude and tool directives take priority.
+// Earlier exclude directives take priority.
 //
 // Later replace directives take priority.
 //
@@ -1657,10 +1605,10 @@ func (f *File) SortBlocks() {
 // retract directives are not de-duplicated since comments are
 // meaningful, and versions may be retracted multiple times.
 func (f *File) removeDups() {
-	removeDups(f.Syntax, &f.Exclude, &f.Replace, &f.Tool)
+	removeDups(f.Syntax, &f.Exclude, &f.Replace)
 }
 
-func removeDups(syntax *FileSyntax, exclude *[]*Exclude, replace *[]*Replace, tool *[]*Tool) {
+func removeDups(syntax *FileSyntax, exclude *[]*Exclude, replace *[]*Replace) {
 	kill := make(map[*Line]bool)
 
 	// Remove duplicate excludes.
@@ -1701,24 +1649,6 @@ func removeDups(syntax *FileSyntax, exclude *[]*Exclude, replace *[]*Replace, to
 	}
 	*replace = repl
 
-	if tool != nil {
-		haveTool := make(map[string]bool)
-		for _, t := range *tool {
-			if haveTool[t.Path] {
-				kill[t.Syntax] = true
-				continue
-			}
-			haveTool[t.Path] = true
-		}
-		var newTool []*Tool
-		for _, t := range *tool {
-			if !kill[t.Syntax] {
-				newTool = append(newTool, t)
-			}
-		}
-		*tool = newTool
-	}
-
 	// Duplicate require and retract directives are not removed.
 
 	// Drop killed statements from the syntax tree.