if !ok || len(c.Args) != 1 {
			break
		}
		if !p.isType(c.Fun) && !p.isUnsafeData(c.Fun, false) {
			break
		}
		px = &c.Args[0]
	}
	if _, ok := (*px).(*ast.SliceExpr); !ok {
		return false
	}

	fmt.Fprintf(sb, "_cgoSlice%d := %s; ", i, gofmtPos(*px, (*px).Pos()))

	origX := *px
	*px = ast.NewIdent(fmt.Sprintf("_cgoSlice%d", i))

pkg go/ast, type SendStmt struct, Chan Expr
pkg go/ast, type SendStmt struct, Value Expr
pkg go/ast, type SliceExpr struct
pkg go/ast, type SliceExpr struct, High Expr
pkg go/ast, type SliceExpr struct, Lbrack token.Pos
pkg go/ast, type SliceExpr struct, Low Expr
pkg go/ast, type SliceExpr struct, Rbrack token.Pos
pkg go/ast, type SliceExpr struct, X Expr
pkg go/ast, type Spec interface, End() token.Pos

pkg flag, type Getter interface, Get() interface{}
pkg flag, type Getter interface, Set(string) error
pkg flag, type Getter interface, String() string
pkg flag, var CommandLine *FlagSet
pkg go/ast, type SliceExpr struct, Max Expr
pkg go/ast, type SliceExpr struct, Slice3 bool
pkg go/ast, type TypeAssertExpr struct, Lparen token.Pos
pkg go/ast, type TypeAssertExpr struct, Rparen token.Pos
pkg go/build, method (*Context) MatchFile(string, string) (bool, error)