// this template was parsed.
type Pos int

func (p Pos) Position() Pos {
	return p
}

// Type returns itself and provides an easy default implementation
// for embedding in a Node. Embedded in all non-trivial Nodes.
func (t NodeType) Type() NodeType {
	return t
}

const (
	NodeText       NodeType = iota // Plain text.

			// read more bytes
			// (an io.Reader must return io.EOF when it reaches
			// the end of what it is reading - simply returning
			// n == 0 will make this loop retry forever; but the
			// error is in the reader implementation in that case)
			i := s.srcEnd - s.srcPos
			n, err := s.src.Read(s.srcBuf[i:bufLen])
			s.srcPos = 0
			s.srcEnd = i + n
			s.srcBuf[s.srcEnd] = utf8.RuneSelf // sentinel
			if err != nil {

	return func(ts *httptest.Server) {
		ts.Config.ErrorLog = lg
	}
}

// newClientServerTest creates and starts an httptest.Server.
//
// The mode parameter selects the implementation to test:
// HTTP/1, HTTP/2, etc. Tests using newClientServerTest should use
// the 'run' function, which will start a subtests for each tested mode.
//
// The vararg opts parameter can include functions to configure the

			return nil, &fs.PathError{Op: opName, Path: cpath, Err: nonFileInOverlayError(node.actualFilePath)}
		}
		return fakeFile{name: filepath.Base(path), real: fi}, nil
	}
}

// fakeFile provides an fs.FileInfo implementation for an overlaid file,
// so that the file has the name of the overlaid file, but takes all
// other characteristics of the replacement file.
type fakeFile struct {
	name string
	real fs.FileInfo
}

// It does this by looking up parent.Value(&cancelCtxKey) to find
// the innermost enclosing *cancelCtx and then checking whether
// parent.Done() matches that *cancelCtx. (If not, the *cancelCtx
// has been wrapped in a custom implementation providing a
// different done channel, in which case we should not bypass it.)
func parentCancelCtx(parent Context) (*cancelCtx, bool) {
	done := parent.Done()
	if done == closedchan || done == nil {

	switch network {
	case "unix", "unixgram", "unixpacket":
		return &UnixAddr{Name: address, Net: network}, nil
	default:
		return nil, UnknownNetworkError(network)
	}
}

// UnixConn is an implementation of the [Conn] interface for connections
// to Unix domain sockets.
type UnixConn struct {
	conn
}

// SyscallConn returns a raw network connection.
// This implements the [syscall.Conn] interface.

	return Unalias(t.resolve().underlying)
}

func (t *Named) String() string { return TypeString(t, nil) }

// ----------------------------------------------------------------------------
// Implementation
//
// TODO(rfindley): reorganize the loading and expansion methods under this
// heading.

// under returns the expanded underlying type of n0; possibly by following

// license that can be found in the LICENSE file.

// This file implements unsigned multi-precision integers (natural
// numbers). They are the building blocks for the implementation
// of signed integers, rationals, and floating-point numbers.
//
// Caution: This implementation relies on the function "alias"
//          which assumes that (nat) slice capacities are never
//          changed (no 3-operand slice expressions). If that

	// comments following the expression.
	After []Comment
}

// Comment returns the receiver. This isn't useful by itself, but
// a [Comments] struct is embedded into all the expression
// implementation types, and this gives each of those a Comment
// method to satisfy the Expr interface.
func (c *Comments) Comment() *Comments {
	return c
}

// A FileSyntax represents an entire go.mod file.

//     which is encoded as a string of decimal digits.
//     These indices are stable across different representations
//     of the same package, even source and export data.
//     The indices used are implementation specific and may not correspond to
//     the argument to the go/types function.
//
// In the example below,
//
//	package p
//
//	type T interface {
//		f() (a string, b struct{ X int })
//	}
//