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Golang obj.Bool2int函數代碼示例

本文整理匯總了Golang中cmd/internal/obj.Bool2int函數的典型用法代碼示例。如果您正苦於以下問題：Golang Bool2int函數的具體用法？Golang Bool2int怎麽用？Golang Bool2int使用的例子？那麽, 這裏精選的函數代碼示例或許可以為您提供幫助。


在下文中一共展示了Bool2int函數的15個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Golang代碼示例。

示例1: gdata

func gdata(nam *Node, nr *Node, wid int) {
	if nam.Op != ONAME {
		Fatalf("gdata nam op %v", nam.Op)
	}
	if nam.Sym == nil {
		Fatalf("gdata nil nam sym")
	}

	switch nr.Op {
	case OLITERAL:
		switch u := nr.Val().U.(type) {
		case *Mpcplx:
			gdatacomplex(nam, u)

		case string:
			gdatastring(nam, u)

		case bool:
			i := int64(obj.Bool2int(u))
			Linksym(nam.Sym).WriteInt(Ctxt, nam.Xoffset, wid, i)

		case *Mpint:
			Linksym(nam.Sym).WriteInt(Ctxt, nam.Xoffset, wid, u.Int64())

		case *Mpflt:
			s := Linksym(nam.Sym)
			f := u.Float64()
			switch nam.Type.Etype {
			case TFLOAT32:
				s.WriteFloat32(Ctxt, nam.Xoffset, float32(f))
			case TFLOAT64:
				s.WriteFloat64(Ctxt, nam.Xoffset, f)
			}

		default:
			Fatalf("gdata unhandled OLITERAL %v", nr)
		}

	case OADDR:
		if nr.Left.Op != ONAME {
			Fatalf("gdata ADDR left op %v", nr.Left.Op)
		}
		to := nr.Left
		Linksym(nam.Sym).WriteAddr(Ctxt, nam.Xoffset, wid, Linksym(to.Sym), to.Xoffset)

	case ONAME:
		if nr.Class != PFUNC {
			Fatalf("gdata NAME not PFUNC %d", nr.Class)
		}
		Linksym(nam.Sym).WriteAddr(Ctxt, nam.Xoffset, wid, Linksym(funcsym(nr.Sym)), nr.Xoffset)

	default:
		Fatalf("gdata unhandled op %v %v\n", nr, nr.Op)
	}
}
開發者ID:kuangchanglang，項目名稱:go，代碼行數:55，代碼來源:obj.go

示例2: haspointers

func haspointers(t *Type) bool {
	switch t.Etype {
	case TINT, TUINT, TINT8, TUINT8, TINT16, TUINT16, TINT32, TUINT32, TINT64,
		TUINT64, TUINTPTR, TFLOAT32, TFLOAT64, TCOMPLEX64, TCOMPLEX128, TBOOL:
		return false

	case TSLICE:
		return true

	case TARRAY:
		at := t.Extra.(*ArrayType)
		if at.Haspointers != 0 {
			return at.Haspointers-1 != 0
		}

		ret := false
		if t.NumElem() != 0 { // non-empty array
			ret = haspointers(t.Elem())
		}

		at.Haspointers = 1 + uint8(obj.Bool2int(ret))
		return ret

	case TSTRUCT:
		st := t.StructType()
		if st.Haspointers != 0 {
			return st.Haspointers-1 != 0
		}

		ret := false
		for _, t1 := range t.Fields().Slice() {
			if haspointers(t1.Type) {
				ret = true
				break
			}
		}
		st.Haspointers = 1 + uint8(obj.Bool2int(ret))
		return ret
	}

	return true
}
開發者ID:2thetop，項目名稱:go，代碼行數:42，代碼來源:reflect.go

示例3: Convconst

// Convconst converts constant node n to type t and
// places the result in con.
func (n *Node) Convconst(con *Node, t *Type) {
	tt := Simsimtype(t)

	// copy the constant for conversion
	Nodconst(con, Types[TINT8], 0)

	con.Type = t
	con.Val = n.Val

	if Isint[tt] {
		con.Val.Ctype = CTINT
		con.Val.U = new(Mpint)
		var i int64
		switch n.Val.Ctype {
		default:
			Fatal("convconst ctype=%d %v", n.Val.Ctype, Tconv(t, obj.FmtLong))

		case CTINT, CTRUNE:
			i = Mpgetfix(n.Val.U.(*Mpint))

		case CTBOOL:
			i = int64(obj.Bool2int(n.Val.U.(bool)))

		case CTNIL:
			i = 0
		}

		i = iconv(i, tt)
		Mpmovecfix(con.Val.U.(*Mpint), i)
		return
	}

	if Isfloat[tt] {
		con.Val = toflt(con.Val)
		if con.Val.Ctype != CTFLT {
			Fatal("convconst ctype=%d %v", con.Val.Ctype, t)
		}
		if tt == TFLOAT32 {
			con.Val.U = truncfltlit(con.Val.U.(*Mpflt), t)
		}
		return
	}

	if Iscomplex[tt] {
		con.Val = tocplx(con.Val)
		if tt == TCOMPLEX64 {
			con.Val.U.(*Mpcplx).Real = *truncfltlit(&con.Val.U.(*Mpcplx).Real, Types[TFLOAT32])
			con.Val.U.(*Mpcplx).Imag = *truncfltlit(&con.Val.U.(*Mpcplx).Imag, Types[TFLOAT32])
		}
		return
	}

	Fatal("convconst %v constant", Tconv(t, obj.FmtLong))
}
開發者ID:bibbyflyaway，項目名稱:go，代碼行數:56，代碼來源:const.go

示例4: IntLiteral

// IntLiteral returns the Node's literal value as an interger.
func (n *Node) IntLiteral() (x int64, ok bool) {
	switch {
	case n == nil:
		return
	case Isconst(n, CTINT):
		return n.Int(), true
	case Isconst(n, CTBOOL):
		return int64(obj.Bool2int(n.Bool())), true
	}
	return
}
開發者ID:ronaldslc，項目名稱:go，代碼行數:12，代碼來源:const.go

示例5: intLiteral

func intLiteral(n *gc.Node) (x int64, ok bool) {
	switch {
	case n == nil:
		return
	case gc.Isconst(n, gc.CTINT):
		return n.Int64(), true
	case gc.Isconst(n, gc.CTBOOL):
		return int64(obj.Bool2int(n.Bool())), true
	}
	return
}
開發者ID:Greentor，項目名稱:go，代碼行數:11，代碼來源:gsubr.go

示例6: Convconst

// Convconst converts constant node n to type t and
// places the result in con.
func (n *Node) Convconst(con *Node, t *Type) {
	tt := Simsimtype(t)

	// copy the constant for conversion
	Nodconst(con, Types[TINT8], 0)

	con.Type = t
	con.SetVal(n.Val())

	if Isint[tt] {
		con.SetVal(Val{new(Mpint)})
		var i int64
		switch n.Val().Ctype() {
		default:
			Fatalf("convconst ctype=%d %v", n.Val().Ctype(), Tconv(t, FmtLong))

		case CTINT, CTRUNE:
			i = n.Val().U.(*Mpint).Int64()

		case CTBOOL:
			i = int64(obj.Bool2int(n.Val().U.(bool)))

		case CTNIL:
			i = 0
		}

		i = iconv(i, tt)
		con.Val().U.(*Mpint).SetInt64(i)
		return
	}

	if Isfloat[tt] {
		con.SetVal(toflt(con.Val()))
		if con.Val().Ctype() != CTFLT {
			Fatalf("convconst ctype=%d %v", con.Val().Ctype(), t)
		}
		if tt == TFLOAT32 {
			con.SetVal(Val{truncfltlit(con.Val().U.(*Mpflt), t)})
		}
		return
	}

	if Iscomplex[tt] {
		con.SetVal(tocplx(con.Val()))
		if tt == TCOMPLEX64 {
			con.Val().U.(*Mpcplx).Real = *truncfltlit(&con.Val().U.(*Mpcplx).Real, Types[TFLOAT32])
			con.Val().U.(*Mpcplx).Imag = *truncfltlit(&con.Val().U.(*Mpcplx).Imag, Types[TFLOAT32])
		}
		return
	}

	Fatalf("convconst %v constant", Tconv(t, FmtLong))
}
開發者ID:duhaibo0404，項目名稱:go-1，代碼行數:55，代碼來源:const.go

示例7: Gbranch

func Gbranch(as int, t *Type, likely int) *obj.Prog {
	p := Prog(as)
	p.To.Type = obj.TYPE_BRANCH
	p.To.Val = nil
	if as != obj.AJMP && likely != 0 && Thearch.Thechar != '9' && Thearch.Thechar != '7' {
		p.From.Type = obj.TYPE_CONST
		p.From.Offset = int64(obj.Bool2int(likely > 0))
	}

	if Debug['g'] != 0 {
		fmt.Printf("%v\n", p)
	}

	return p
}
開發者ID:Ericean，項目名稱:go，代碼行數:15，代碼來源:gsubr.go

示例8: cmpstackvar

// Sort the list of stack variables. Autos after anything else,
// within autos, unused after used, within used, things with
// pointers first, zeroed things first, and then decreasing size.
// Because autos are laid out in decreasing addresses
// on the stack, pointers first, zeroed things first and decreasing size
// really means, in memory, things with pointers needing zeroing at
// the top of the stack and increasing in size.
// Non-autos sort on offset.
func cmpstackvar(a *Node, b *Node) int {
	if a.Class != b.Class {
		if a.Class == PAUTO {
			return +1
		}
		return -1
	}

	if a.Class != PAUTO {
		if a.Xoffset < b.Xoffset {
			return -1
		}
		if a.Xoffset > b.Xoffset {
			return +1
		}
		return 0
	}

	if a.Used != b.Used {
		return obj.Bool2int(b.Used) - obj.Bool2int(a.Used)
	}

	ap := obj.Bool2int(haspointers(a.Type))
	bp := obj.Bool2int(haspointers(b.Type))
	if ap != bp {
		return bp - ap
	}

	ap = obj.Bool2int(a.Name.Needzero)
	bp = obj.Bool2int(b.Name.Needzero)
	if ap != bp {
		return bp - ap
	}

	if a.Type.Width < b.Type.Width {
		return +1
	}
	if a.Type.Width > b.Type.Width {
		return -1
	}

	return stringsCompare(a.Sym.Name, b.Sym.Name)
}
開發者ID:josharian，項目名稱:go.ssa，代碼行數:51，代碼來源:pgen.go

示例9: Naddr


//.........這裏部分代碼省略.........

		case PFUNC:
			a.Name = obj.NAME_EXTERN
			a.Type = obj.TYPE_ADDR
			a.Width = int64(Widthptr)
			s = funcsym(s)
		}

		a.Sym = Linksym(s)

	case OLITERAL:
		if Thearch.Thechar == '8' {
			a.Width = 0
		}
		switch n.Val().Ctype() {
		default:
			Fatalf("naddr: const %v", Tconv(n.Type, obj.FmtLong))

		case CTFLT:
			a.Type = obj.TYPE_FCONST
			a.Val = mpgetflt(n.Val().U.(*Mpflt))

		case CTINT, CTRUNE:
			a.Sym = nil
			a.Type = obj.TYPE_CONST
			a.Offset = Mpgetfix(n.Val().U.(*Mpint))

		case CTSTR:
			datagostring(n.Val().U.(string), a)

		case CTBOOL:
			a.Sym = nil
			a.Type = obj.TYPE_CONST
			a.Offset = int64(obj.Bool2int(n.Val().U.(bool)))

		case CTNIL:
			a.Sym = nil
			a.Type = obj.TYPE_CONST
			a.Offset = 0
		}

	case OADDR:
		Naddr(a, n.Left)
		a.Etype = uint8(Tptr)
		if Thearch.Thechar != '0' && Thearch.Thechar != '5' && Thearch.Thechar != '7' && Thearch.Thechar != '9' { // TODO(rsc): Do this even for arm, ppc64.
			a.Width = int64(Widthptr)
		}
		if a.Type != obj.TYPE_MEM {
			a := a // copy to let escape into Ctxt.Dconv
			Fatalf("naddr: OADDR %v (from %v)", Ctxt.Dconv(a), Oconv(int(n.Left.Op), 0))
		}
		a.Type = obj.TYPE_ADDR

		// itable of interface value
	case OITAB:
		Naddr(a, n.Left)

		if a.Type == obj.TYPE_CONST && a.Offset == 0 {
			break // itab(nil)
		}
		a.Etype = uint8(Tptr)
		a.Width = int64(Widthptr)

		// pointer in a string or slice
	case OSPTR:
		Naddr(a, n.Left)
開發者ID:Ryezhang，項目名稱:go，代碼行數:67，代碼來源:gsubr.go

示例10: dtypesym

func dtypesym(t *Type) *Sym {
	// Replace byte, rune aliases with real type.
	// They've been separate internally to make error messages
	// better, but we have to merge them in the reflect tables.
	if t == bytetype || t == runetype {
		t = Types[t.Etype]
	}

	if isideal(t) {
		Fatalf("dtypesym %v", t)
	}

	s := typesym(t)
	if s.Flags&SymSiggen != 0 {
		return s
	}
	s.Flags |= SymSiggen

	// special case (look for runtime below):
	// when compiling package runtime,
	// emit the type structures for int, float, etc.
	tbase := t

	if Isptr[t.Etype] && t.Sym == nil && t.Type.Sym != nil {
		tbase = t.Type
	}
	dupok := 0
	if tbase.Sym == nil {
		dupok = obj.DUPOK
	}

	if compiling_runtime != 0 && (tbase == Types[tbase.Etype] || tbase == bytetype || tbase == runetype || tbase == errortype) { // int, float, etc
		goto ok
	}

	// named types from other files are defined only by those files
	if tbase.Sym != nil && !tbase.Local {
		return s
	}
	if isforw[tbase.Etype] {
		return s
	}

ok:
	ot := 0
	xt := 0
	switch t.Etype {
	default:
		ot = dcommontype(s, ot, t)
		xt = ot - 2*Widthptr

	case TARRAY:
		if t.Bound >= 0 {
			// ../../runtime/type.go:/ArrayType
			s1 := dtypesym(t.Type)

			t2 := typ(TARRAY)
			t2.Type = t.Type
			t2.Bound = -1 // slice
			s2 := dtypesym(t2)
			ot = dcommontype(s, ot, t)
			xt = ot - 2*Widthptr
			ot = dsymptr(s, ot, s1, 0)
			ot = dsymptr(s, ot, s2, 0)
			ot = duintptr(s, ot, uint64(t.Bound))
		} else {
			// ../../runtime/type.go:/SliceType
			s1 := dtypesym(t.Type)

			ot = dcommontype(s, ot, t)
			xt = ot - 2*Widthptr
			ot = dsymptr(s, ot, s1, 0)
		}

		// ../../runtime/type.go:/ChanType
	case TCHAN:
		s1 := dtypesym(t.Type)

		ot = dcommontype(s, ot, t)
		xt = ot - 2*Widthptr
		ot = dsymptr(s, ot, s1, 0)
		ot = duintptr(s, ot, uint64(t.Chan))

	case TFUNC:
		for t1 := getthisx(t).Type; t1 != nil; t1 = t1.Down {
			dtypesym(t1.Type)
		}
		isddd := false
		for t1 := getinargx(t).Type; t1 != nil; t1 = t1.Down {
			isddd = t1.Isddd
			dtypesym(t1.Type)
		}

		for t1 := getoutargx(t).Type; t1 != nil; t1 = t1.Down {
			dtypesym(t1.Type)
		}

		ot = dcommontype(s, ot, t)
		xt = ot - 2*Widthptr
		ot = duint8(s, ot, uint8(obj.Bool2int(isddd)))
//.........這裏部分代碼省略.........
開發者ID:arnold8，項目名稱:go，代碼行數:101，代碼來源:reflect.go

示例11: haspointers

func haspointers(t *Type) bool {
	if t.Haspointers != 0 {
		return t.Haspointers-1 != 0
	}

	var ret bool
	switch t.Etype {
	case TINT,
		TUINT,
		TINT8,
		TUINT8,
		TINT16,
		TUINT16,
		TINT32,
		TUINT32,
		TINT64,
		TUINT64,
		TUINTPTR,
		TFLOAT32,
		TFLOAT64,
		TCOMPLEX64,
		TCOMPLEX128,
		TBOOL:
		ret = false

	case TARRAY:
		if t.Bound < 0 { // slice
			ret = true
			break
		}

		if t.Bound == 0 { // empty array
			ret = false
			break
		}

		ret = haspointers(t.Type)

	case TSTRUCT:
		ret = false
		for t1 := t.Type; t1 != nil; t1 = t1.Down {
			if haspointers(t1.Type) {
				ret = true
				break
			}
		}

	case TSTRING,
		TPTR32,
		TPTR64,
		TUNSAFEPTR,
		TINTER,
		TCHAN,
		TMAP,
		TFUNC:
		fallthrough
	default:
		ret = true

	case TFIELD:
		Fatalf("haspointers: unexpected type, %v", t)
	}

	t.Haspointers = 1 + uint8(obj.Bool2int(ret))
	return ret
}
開發者ID:arnold8，項目名稱:go，代碼行數:66，代碼來源:reflect.go

示例12: dtypesym


//.........這裏部分代碼省略.........

			ot = dsymptrOffLSym(lsym, ot, nsym, 0)
			ot = dsymptrOffLSym(lsym, ot, Linksym(dtypesym(a.type_)), 0)
		}

	// ../../../../runtime/type.go:/mapType
	case TMAP:
		s1 := dtypesym(t.Key())
		s2 := dtypesym(t.Val())
		s3 := dtypesym(mapbucket(t))
		s4 := dtypesym(hmap(t))
		ot = dcommontype(s, ot, t)
		ot = dsymptr(s, ot, s1, 0)
		ot = dsymptr(s, ot, s2, 0)
		ot = dsymptr(s, ot, s3, 0)
		ot = dsymptr(s, ot, s4, 0)
		if t.Key().Width > MAXKEYSIZE {
			ot = duint8(s, ot, uint8(Widthptr))
			ot = duint8(s, ot, 1) // indirect
		} else {
			ot = duint8(s, ot, uint8(t.Key().Width))
			ot = duint8(s, ot, 0) // not indirect
		}

		if t.Val().Width > MAXVALSIZE {
			ot = duint8(s, ot, uint8(Widthptr))
			ot = duint8(s, ot, 1) // indirect
		} else {
			ot = duint8(s, ot, uint8(t.Val().Width))
			ot = duint8(s, ot, 0) // not indirect
		}

		ot = duint16(s, ot, uint16(mapbucket(t).Width))
		ot = duint8(s, ot, uint8(obj.Bool2int(isreflexive(t.Key()))))
		ot = duint8(s, ot, uint8(obj.Bool2int(needkeyupdate(t.Key()))))
		ot = dextratype(s, ot, t, 0)

	case TPTR32, TPTR64:
		if t.Elem().Etype == TANY {
			// ../../../../runtime/type.go:/UnsafePointerType
			ot = dcommontype(s, ot, t)
			ot = dextratype(s, ot, t, 0)

			break
		}

		// ../../../../runtime/type.go:/ptrType
		s1 := dtypesym(t.Elem())

		ot = dcommontype(s, ot, t)
		ot = dsymptr(s, ot, s1, 0)
		ot = dextratype(s, ot, t, 0)

	// ../../../../runtime/type.go:/structType
	// for security, only the exported fields.
	case TSTRUCT:
		n := 0

		for _, t1 := range t.Fields().Slice() {
			dtypesym(t1.Type)
			n++
		}

		ot = dcommontype(s, ot, t)
		pkg := localpkg
		if t.Sym != nil {
開發者ID:2thetop，項目名稱:go，代碼行數:67，代碼來源:reflect.go

示例13: Naddr


//.........這裏部分代碼省略.........
		// A special case to make write barriers more efficient.
		// Taking the address of the first field of a named struct
		// is the same as taking the address of the struct.
		if !n.Left.Type.IsStruct() || n.Left.Type.Field(0).Sym != n.Sym {
			Debug['h'] = 1
			Dump("naddr", n)
			Fatalf("naddr: bad %v %v", n.Op, Ctxt.Dconv(a))
		}
		Naddr(a, n.Left)

	case OLITERAL:
		if Thearch.LinkArch.Family == sys.I386 {
			a.Width = 0
		}
		switch u := n.Val().U.(type) {
		default:
			Fatalf("naddr: const %v", Tconv(n.Type, FmtLong))

		case *Mpflt:
			a.Type = obj.TYPE_FCONST
			a.Val = u.Float64()

		case *Mpint:
			a.Sym = nil
			a.Type = obj.TYPE_CONST
			a.Offset = u.Int64()

		case string:
			datagostring(u, a)

		case bool:
			a.Sym = nil
			a.Type = obj.TYPE_CONST
			a.Offset = int64(obj.Bool2int(u))

		case *NilVal:
			a.Sym = nil
			a.Type = obj.TYPE_CONST
			a.Offset = 0
		}

	case OADDR:
		Naddr(a, n.Left)
		a.Etype = uint8(Tptr)
		if !Thearch.LinkArch.InFamily(sys.MIPS64, sys.ARM, sys.ARM64, sys.PPC64, sys.S390X) { // TODO(rsc): Do this even for these architectures.
			a.Width = int64(Widthptr)
		}
		if a.Type != obj.TYPE_MEM {
			a := a // copy to let escape into Ctxt.Dconv
			Fatalf("naddr: OADDR %v (from %v)", Ctxt.Dconv(a), n.Left.Op)
		}
		a.Type = obj.TYPE_ADDR

	case OITAB:
		// itable of interface value
		Naddr(a, n.Left)
		if a.Type == obj.TYPE_CONST && a.Offset == 0 {
			break // itab(nil)
		}
		a.Etype = uint8(Tptr)
		a.Width = int64(Widthptr)

	case OIDATA:
		// idata of interface value
		Naddr(a, n.Left)
		if a.Type == obj.TYPE_CONST && a.Offset == 0 {
開發者ID:hurkgu，項目名稱:go，代碼行數:67，代碼來源:gsubr.go

示例14: dtypesym


//.........這裏部分代碼省略.........
			ot = dgostringptr(s, ot, a.name)
			ot = dgopkgpath(s, ot, a.pkg)
			ot = dsymptr(s, ot, dtypesym(a.type_), 0)
		}

	// ../../../../runtime/type.go:/mapType
	case TMAP:
		s1 := dtypesym(t.Key())
		s2 := dtypesym(t.Type)
		s3 := dtypesym(mapbucket(t))
		s4 := dtypesym(hmap(t))
		ot = dcommontype(s, ot, t)
		ot = dsymptr(s, ot, s1, 0)
		ot = dsymptr(s, ot, s2, 0)
		ot = dsymptr(s, ot, s3, 0)
		ot = dsymptr(s, ot, s4, 0)
		if t.Key().Width > MAXKEYSIZE {
			ot = duint8(s, ot, uint8(Widthptr))
			ot = duint8(s, ot, 1) // indirect
		} else {
			ot = duint8(s, ot, uint8(t.Key().Width))
			ot = duint8(s, ot, 0) // not indirect
		}

		if t.Type.Width > MAXVALSIZE {
			ot = duint8(s, ot, uint8(Widthptr))
			ot = duint8(s, ot, 1) // indirect
		} else {
			ot = duint8(s, ot, uint8(t.Type.Width))
			ot = duint8(s, ot, 0) // not indirect
		}

		ot = duint16(s, ot, uint16(mapbucket(t).Width))
		ot = duint8(s, ot, uint8(obj.Bool2int(isreflexive(t.Key()))))
		ot = duint8(s, ot, uint8(obj.Bool2int(needkeyupdate(t.Key()))))
		ot = dextratype(s, ot, t, 0)

	case TPTR32, TPTR64:
		if t.Type.Etype == TANY {
			// ../../../../runtime/type.go:/UnsafePointerType
			ot = dcommontype(s, ot, t)
			ot = dextratype(s, ot, t, 0)

			break
		}

		// ../../../../runtime/type.go:/ptrType
		s1 := dtypesym(t.Type)

		ot = dcommontype(s, ot, t)
		ot = dsymptr(s, ot, s1, 0)
		ot = dextratype(s, ot, t, 0)

	// ../../../../runtime/type.go:/structType
	// for security, only the exported fields.
	case TSTRUCT:
		n := 0

		for t1, it := IterFields(t); t1 != nil; t1 = it.Next() {
			dtypesym(t1.Type)
			n++
		}

		ot = dcommontype(s, ot, t)
		ot = dsymptr(s, ot, s, ot+Widthptr+2*Widthint+uncommonSize(t))
		ot = duintxx(s, ot, uint64(n), Widthint)
開發者ID:Samurais，項目名稱:go，代碼行數:67，代碼來源:reflect.go

示例15: haspointers

func haspointers(t *Type) bool {
	if t.Haspointers != 0 {
		return t.Haspointers-1 != 0
	}

	var ret bool
	switch t.Etype {
	case TINT,
		TUINT,
		TINT8,
		TUINT8,
		TINT16,
		TUINT16,
		TINT32,
		TUINT32,
		TINT64,
		TUINT64,
		TUINTPTR,
		TFLOAT32,
		TFLOAT64,
		TCOMPLEX64,
		TCOMPLEX128,
		TBOOL:
		ret = false

	case TARRAY:
		if t.Bound < 0 { // slice
			ret = true
			break
		}

		if t.Bound == 0 { // empty array
			ret = false
			break
		}

		ret = haspointers(t.Type)

	case TSTRUCT:
		ret = false
		for t1, it := IterFields(t); t1 != nil; t1 = it.Next() {
			if haspointers(t1.Type) {
				ret = true
				break
			}
		}

	case TSTRING,
		TPTR32,
		TPTR64,
		TUNSAFEPTR,
		TINTER,
		TCHAN,
		TMAP,
		TFUNC:
		fallthrough
	default:
		ret = true
	}

	t.Haspointers = 1 + uint8(obj.Bool2int(ret))
	return ret
}
開發者ID:Samurais，項目名稱:go，代碼行數:63，代碼來源:reflect.go


注：本文中的cmd/internal/obj.Bool2int函數示例由純淨天空整理自Github/MSDocs等開源代碼及文檔管理平台，相關代碼片段篩選自各路編程大神貢獻的開源項目，源碼版權歸原作者所有，傳播和使用請參考對應項目的License；未經允許，請勿轉載。