ctxt            *Context  // local Context; set to nil after full expansion
}

// namedState represents the possible states that a named type may assume.
type namedState uint32

const (
	unresolved namedState = iota // tparams, underlying type and methods might be unavailable
	resolved                     // resolve has run; methods might be incomplete (for instances)
	complete                     // all data is known
)

				}
			case constDecl:
				// declare all constants
				for i, name := range d.spec.Names {
					obj := NewConst(name.Pos(), pkg, name.Name, nil, constant.MakeInt64(int64(d.iota)))

					var init ast.Expr
					if i < len(d.init) {
						init = d.init[i]
					}

					d := &declInfo{file: fileScope, vtyp: d.typ, init: init, inherited: d.inherited}

	pc   uintptr
	fn   *byte
	file *byte
	line uintptr
	off  uintptr
	res  uintptr
}

var qq = [...]byte{'?', '?', 0}
var dash = [...]byte{'-', 0}

const (
	raceGetProcCmd = iota
	raceSymbolizeCodeCmd
	raceSymbolizeDataCmd
)

// Callback from C into Go, runs on g0.
func racecallback(cmd uintptr, ctx unsafe.Pointer) {
	switch cmd {
	case raceGetProcCmd:

	decIndir    int8         // number of indirections to reach the receiver type; may be negative
}

// externalEncoding bits
const (
	xGob    = 1 + iota // GobEncoder or GobDecoder
	xBinary            // encoding.BinaryMarshaler or encoding.BinaryUnmarshaler
	xText              // encoding.TextMarshaler or encoding.TextUnmarshaler
)

	"make":    true,
	"new":     true,
	"panic":   true,
	"print":   true,
	"println": true,
	"real":    true,
	"recover": true,
}

var predeclaredConstants = map[string]bool{
	"false": true,
	"iota":  true,
	"nil":   true,
	"true":  true,
}

// assumedPackageName returns the assumed package name
// for a given import path. This is a copy of
// golang.org/x/tools/internal/imports.ImportPathToAssumedName.

type UtilFlags int

const (
	// UtilSTW means utilization should account for STW events.
	// This includes non-GC STW events, which are typically user-requested.
	UtilSTW UtilFlags = 1 << iota
	// UtilBackground means utilization should account for
	// background mark workers.
	UtilBackground
	// UtilAssist means utilization should account for mark
	// assists.
	UtilAssist

func (d *dotReader) Read(b []byte) (n int, err error) {
	// Run data through a simple state machine to
	// elide leading dots, rewrite trailing \r\n into \n,
	// and detect ending .\r\n line.
	const (
		stateBeginLine = iota // beginning of line; initial state; must be zero
		stateDot              // read . at beginning of line
		stateDotCR            // read .\r at beginning of line
		stateCR               // read \r (possibly at end of line)

	}
	return nil
}

// pathKind indicates what kind of path we're checking. Module paths,
// import paths, and file paths have different restrictions.
type pathKind int

const (
	modulePath pathKind = iota
	importPath
	filePath
)

// checkPath checks that a general path is valid. kind indicates what
// specific constraints should be applied.
//

type unifyMode uint

const (
	// If assign is set, we are unifying types involved in an assignment:
	// they may match inexactly at the top, but element types must match
	// exactly.
	assign unifyMode = 1 << iota

	// If exact is set, types unify if they are identical (or can be
	// made identical with suitable arguments for type parameters).
	// Otherwise, a named type and a type literal unify if their

}

// condResult is the result of an HTTP request precondition check.
// See https://tools.ietf.org/html/rfc7232 section 3.
type condResult int

const (
	condNone condResult = iota
	condTrue
	condFalse
)

func checkIfMatch(w ResponseWriter, r *Request) condResult {
	im := r.Header.Get("If-Match")
	if im == "" {
		return condNone
	}
	for {
		im = textproto.TrimString(im)