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

//go:build wasip1

package syscall

import (
	"errors"
	"internal/itoa"
	"internal/oserror"
	"unsafe"
)

type Dircookie = uint64

type Filetype = uint8

const (
	FILETYPE_UNKNOWN Filetype = iota
	FILETYPE_BLOCK_DEVICE
	FILETYPE_CHARACTER_DEVICE
	FILETYPE_DIRECTORY
	FILETYPE_REGULAR_FILE
	FILETYPE_SOCKET_DGRAM
	FILETYPE_SOCKET_STREAM

package riscv

import (
	"errors"
	"fmt"

	"cmd/internal/obj"
)

//go:generate go run ../stringer.go -i $GOFILE -o anames.go -p riscv

const (
	// Base register numberings.
	REG_X0 = obj.RBaseRISCV + iota
	REG_X1
	REG_X2
	REG_X3
	REG_X4
	REG_X5
	REG_X6
	REG_X7
	REG_X8
	REG_X9
	REG_X10
	REG_X11
	REG_X12
	REG_X13
	REG_X14
	REG_X15
	REG_X16
	REG_X17
	REG_X18
	REG_X19

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package types

// BasicKind describes the kind of basic type.
type BasicKind int

const (
	Invalid BasicKind = iota // type is invalid

	// predeclared types
	Bool
	Int
	Int8
	Int16
	Int32
	Int64
	Uint
	Uint8
	Uint16
	Uint32
	Uint64
	Uintptr
	Float32
	Float64
	Complex64
	Complex128

	Kind    Kind
	Version Version // Go version that first included the symbol
}

// A Kind indicates the kind of a symbol:
// function, variable, constant, type, and so on.
type Kind int8

const (
	Invalid Kind = iota // Example name:
	Type                // "Buffer"
	Func                // "Println"
	Var                 // "EOF"
	Const               // "Pi"
	Field               // "Point.X"
	Method              // "(*Buffer).Grow"

type Prog struct {
	Inst   []Inst
	Start  int // index of start instruction
	NumCap int // number of InstCapture insts in re
}

// An InstOp is an instruction opcode.
type InstOp uint8

const (
	InstAlt InstOp = iota
	InstAltMatch
	InstCapture
	InstEmptyWidth
	InstMatch
	InstFail
	InstNop
	InstRune
	InstRune1
	InstRuneAny
	InstRuneAnyNotNL
)

var instOpNames = []string{
	"InstAlt",
	"InstAltMatch",

// cXORCase can result in large series of identical trie values. This, in turn,
// allows us to better compress the trie blocks.
const (
	cUncased          info = iota // 000
	cTitle                        // 001
	cLower                        // 010
	cUpper                        // 011
	cIgnorableUncased             // 100

	//	for TYPE_FCONST, a float64
	//	for TYPE_BRANCH, a *Prog (optional)
	//	for TYPE_TEXTSIZE, an int32 (optional)
	Val interface{}
}

type AddrName int8

const (
	NAME_NONE AddrName = iota
	NAME_EXTERN
	NAME_STATIC
	NAME_AUTO
	NAME_PARAM
	// A reference to name@GOT(SB) is a reference to the entry in the global offset
	// table for 'name'.
	NAME_GOTREF

	return w.dot
}

func (w *Writer) closeDot() {
	if w.dot != nil {
		w.dot.Close() // sets w.dot = nil
	}
}

type dotWriter struct {
	w     *Writer
	state int
}

const (
	wstateBegin     = iota // initial state; must be zero
	wstateBeginLine        // beginning of line
	wstateCR               // wrote \r (possibly at end of line)
	wstateData             // writing data in middle of line
)

// AlgKind describes the kind of algorithms used for comparing and
// hashing a Type.
type AlgKind int8

//go:generate stringer -type AlgKind -trimprefix A alg.go

const (
	AUNK   AlgKind = iota
	ANOEQ          // Types cannot be compared
	ANOALG         // implies ANOEQ, and in addition has a part that is marked Noalg
	AMEM           // Type can be compared/hashed as regular memory.

// statuses.
type traceGoStatus uint8

const (
	traceGoBad traceGoStatus = iota
	traceGoRunnable
	traceGoRunning
	traceGoSyscall
	traceGoWaiting
)

// traceProcStatus is the status of a P.
//
// They mostly correspond to the various P statuses.
type traceProcStatus uint8

const (
	traceProcBad traceProcStatus = iota
	traceProcRunning
	traceProcIdle
	traceProcSyscall