1 files changed, 0 insertions, 166 deletions
diff --git a/cmd/cover/func.go b/cmd/cover/func.go
deleted file mode 100644
index 41d9fceca..000000000
--- a/cmd/cover/func.go
+++ /dev/null
@@ -1,166 +0,0 @@
-// Copyright 2013 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.
-
-// This file implements the visitor that computes the (line, column)-(line-column) range for each function.
-
-package main
-
-import (
-	"bufio"
-	"fmt"
-	"go/ast"
-	"go/build"
-	"go/parser"
-	"go/token"
-	"os"
-	"path/filepath"
-	"text/tabwriter"
-
-	"golang.org/x/tools/cover"
-)
-
-// funcOutput takes two file names as arguments, a coverage profile to read as input and an output
-// file to write ("" means to write to standard output). The function reads the profile and produces
-// as output the coverage data broken down by function, like this:
-//
-//	fmt/format.go:30:	init			100.0%
-//	fmt/format.go:57:	clearflags		100.0%
-//	...
-//	fmt/scan.go:1046:	doScan			100.0%
-//	fmt/scan.go:1075:	advance			96.2%
-//	fmt/scan.go:1119:	doScanf			96.8%
-//	total:		(statements)			91.9%
-
-func funcOutput(profile, outputFile string) error {
-	profiles, err := cover.ParseProfiles(profile)
-	if err != nil {
-		return err
-	}
-
-	var out *bufio.Writer
-	if outputFile == "" {
-		out = bufio.NewWriter(os.Stdout)
-	} else {
-		fd, err := os.Create(outputFile)
-		if err != nil {
-			return err
-		}
-		defer fd.Close()
-		out = bufio.NewWriter(fd)
-	}
-	defer out.Flush()
-
-	tabber := tabwriter.NewWriter(out, 1, 8, 1, '\t', 0)
-	defer tabber.Flush()
-
-	var total, covered int64
-	for _, profile := range profiles {
-		fn := profile.FileName
-		file, err := findFile(fn)
-		if err != nil {
-			return err
-		}
-		funcs, err := findFuncs(file)
-		if err != nil {
-			return err
-		}
-		// Now match up functions and profile blocks.
-		for _, f := range funcs {
-			c, t := f.coverage(profile)
-			fmt.Fprintf(tabber, "%s:%d:\t%s\t%.1f%%\n", fn, f.startLine, f.name, 100.0*float64(c)/float64(t))
-			total += t
-			covered += c
-		}
-	}
-	fmt.Fprintf(tabber, "total:\t(statements)\t%.1f%%\n", 100.0*float64(covered)/float64(total))
-
-	return nil
-}
-
-// findFuncs parses the file and returns a slice of FuncExtent descriptors.
-func findFuncs(name string) ([]*FuncExtent, error) {
-	fset := token.NewFileSet()
-	parsedFile, err := parser.ParseFile(fset, name, nil, 0)
-	if err != nil {
-		return nil, err
-	}
-	visitor := &FuncVisitor{
-		fset:    fset,
-		name:    name,
-		astFile: parsedFile,
-	}
-	ast.Walk(visitor, visitor.astFile)
-	return visitor.funcs, nil
-}
-
-// FuncExtent describes a function's extent in the source by file and position.
-type FuncExtent struct {
-	name      string
-	startLine int
-	startCol  int
-	endLine   int
-	endCol    int
-}
-
-// FuncVisitor implements the visitor that builds the function position list for a file.
-type FuncVisitor struct {
-	fset    *token.FileSet
-	name    string // Name of file.
-	astFile *ast.File
-	funcs   []*FuncExtent
-}
-
-// Visit implements the ast.Visitor interface.
-func (v *FuncVisitor) Visit(node ast.Node) ast.Visitor {
-	switch n := node.(type) {
-	case *ast.FuncDecl:
-		start := v.fset.Position(n.Pos())
-		end := v.fset.Position(n.End())
-		fe := &FuncExtent{
-			name:      n.Name.Name,
-			startLine: start.Line,
-			startCol:  start.Column,
-			endLine:   end.Line,
-			endCol:    end.Column,
-		}
-		v.funcs = append(v.funcs, fe)
-	}
-	return v
-}
-
-// coverage returns the fraction of the statements in the function that were covered, as a numerator and denominator.
-func (f *FuncExtent) coverage(profile *cover.Profile) (num, den int64) {
-	// We could avoid making this n^2 overall by doing a single scan and annotating the functions,
-	// but the sizes of the data structures is never very large and the scan is almost instantaneous.
-	var covered, total int64
-	// The blocks are sorted, so we can stop counting as soon as we reach the end of the relevant block.
-	for _, b := range profile.Blocks {
-		if b.StartLine > f.endLine || (b.StartLine == f.endLine && b.StartCol >= f.endCol) {
-			// Past the end of the function.
-			break
-		}
-		if b.EndLine < f.startLine || (b.EndLine == f.startLine && b.EndCol <= f.startCol) {
-			// Before the beginning of the function
-			continue
-		}
-		total += int64(b.NumStmt)
-		if b.Count > 0 {
-			covered += int64(b.NumStmt)
-		}
-	}
-	if total == 0 {
-		total = 1 // Avoid zero denominator.
-	}
-	return covered, total
-}
-
-// findFile finds the location of the named file in GOROOT, GOPATH etc.
-func findFile(file string) (string, error) {
-	dir, file := filepath.Split(file)
-	pkg, err := build.Import(dir, ".", build.FindOnly)
-	if err != nil {
-		return "", fmt.Errorf("can't find %q: %v", file, err)
-	}
-	return filepath.Join(pkg.Dir, file), nil
-}