check.pass.Reportf(pos, "malformed //go:build line (space between // and go:build)")
		}
		return
	}
	if !check.goBuildOK || check.inStar {
		check.pass.Reportf(pos, "misplaced //go:build comment")
		check.crossCheck = false
		return
	}

	if check.goBuildPos == token.NoPos {
		check.goBuildPos = pos
	} else {
		check.pass.Reportf(pos, "unexpected extra //go:build line")

			check.pass.Reportf(pos, "//go:debug directive only valid in Go source files")
		} else if check.file.Name.Name != "main" && !strings.HasSuffix(check.filename, "_test.go") {
			check.pass.Reportf(pos, "//go:debug directive only valid in package main or test")
		} else if !check.inHeader {
			check.pass.Reportf(pos, "//go:debug directive only valid before package declaration")
		}
	}
}

// Go 1.20 strings.CutPrefix.

		for _, f := range t.fields {
			if !comparable(f.typ, dynamic, seen, nil) {
				if reportf != nil {
					reportf("struct containing %s cannot be compared", f.typ)
				}
				return false
			}
		}
		return true
	case *Array:
		if !comparable(t.elem, dynamic, seen, nil) {
			if reportf != nil {
				reportf("%s cannot be compared", t)
			}
			return false
		}
		return true
	case *Interface:

		for _, f := range t.fields {
			if !comparable(f.typ, dynamic, seen, nil) {
				if reportf != nil {
					reportf("struct containing %s cannot be compared", f.typ)
				}
				return false
			}
		}
		return true
	case *Array:
		if !comparable(t.elem, dynamic, seen, nil) {
			if reportf != nil {
				reportf("%s cannot be compared", t)
			}
			return false
		}
		return true
	case *Interface:

		pass.Reportf(fn.Pos(), "%s should return nothing", fnName)
	}
	if tparams := fn.Type.TypeParams; tparams != nil && len(tparams.List) > 0 {
		pass.Reportf(fn.Pos(), "%s should not have type params", fnName)
	}

	if fnName == "Example" {
		// Nothing more to do.
		return
	}

	var (
		exName = strings.TrimPrefix(fnName, "Example")
		elems  = strings.SplitN(exName, "_", 3)

// Package framepointer defines an Analyzer that reports assembly code
// that clobbers the frame pointer before saving it.
package framepointer

import (
	"go/build"
	"regexp"
	"strings"

	"golang.org/x/tools/go/analysis"
	"golang.org/x/tools/go/analysis/passes/internal/analysisutil"
)

const Doc = "report assembly that clobbers the frame pointer before saving it"

		switch t.Underlying().(type) {
		case *types.Pointer, *types.Interface, *types.TypeParam:
			return
		}

		switch argidx {
		case 0:
			pass.Reportf(call.Lparen, "call of %s passes non-pointer", fn.Name())
		case 1:
			pass.Reportf(call.Lparen, "call of %s passes non-pointer as second argument", fn.Name())
		}
	})
	return nil, nil

	if err != nil {
		return nil, err
	}
	for _, f := range cgofiles {
		checkCgo(pass.Fset, f, info, pass.Reportf)
	}
	return nil, nil
}

func checkCgo(fset *token.FileSet, f *ast.File, info *types.Info, reportf func(token.Pos, string, ...interface{})) {
	ast.Inspect(f, func(n ast.Node) bool {
		call, ok := n.(*ast.CallExpr)
		if !ok {
			return true
		}

	}

	checkDeferCall := func(node ast.Node) bool {
		switch v := node.(type) {
		case *ast.CallExpr:
			if analysisutil.IsFunctionNamed(typeutil.StaticCallee(pass.TypesInfo, v), "time", "Since") {
				pass.Reportf(v.Pos(), "call to time.Since is not deferred")
			}
		case *ast.FuncLit:
			return false // prune
		}
		return true
	}

	inspect := pass.ResultOf[inspect.Analyzer].(*inspector.Inspector)

		}

		// Check each line of a //-comment.
		for _, c := range group.List {
			if !strings.Contains(c.Text, "+build") {
				continue
			}
			if err := checkLine(c.Text, pastCutoff); err != nil {
				pass.Reportf(c.Pos(), "%s", err)
			}
		}
	}
}

func checkOtherFile(pass *analysis.Pass, filename string) error {
	content, tf, err := analysisutil.ReadFile(pass, filename)
	if err != nil {
		return err
	}