/
init.go
1522 lines (1414 loc) · 35.1 KB
/
init.go
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// Copyright 2017 The CCGO Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package ccgo // import "modernc.org/ccgo/v2"
import (
"unsafe"
"modernc.org/cc/v2"
"modernc.org/ir"
"modernc.org/xc"
)
func (g *gen) isZeroInitializer(n *cc.Initializer) bool {
if n == nil {
return true
}
if n.Case == cc.InitializerExpr { // Expr
return n.Expr.IsZero()
}
// '{' InitializerList CommaOpt '}'
for l := n.InitializerList; l != nil; l = l.InitializerList {
if !g.isZeroInitializer(l.Initializer) {
return false
}
}
return true
}
func (g *ngen) isZeroInitializer(n *cc.Initializer) bool {
if n == nil {
return true
}
if n.Case == cc.InitializerExpr { // Expr
return n.Expr.IsZero() && g.voidCanIgnore(n.Expr)
}
// '{' InitializerList CommaOpt '}'
for l := n.InitializerList; l != nil; l = l.InitializerList {
if !g.isZeroInitializer(l.Initializer) {
return false
}
}
return true
}
func (g *gen) isConstInitializer(t cc.Type, n *cc.Initializer) bool {
switch n.Case {
case cc.InitializerCompLit: // '{' InitializerList CommaOpt '}'
switch x := underlyingType(t, true).(type) {
case *cc.ArrayType:
for l := n.InitializerList; l != nil; l = l.InitializerList {
if !g.isConstInitializer(x.Item, l.Initializer) {
return false
}
}
return true
case *cc.StructType:
layout := g.model.Layout(x)
var fld int64
for l := n.InitializerList; l != nil; l = l.InitializerList {
if fld < int64(len(layout)) {
for !layout[fld].Anonymous && (layout[fld].Bits < 0 || layout[fld].Declarator == nil) {
fld++
}
}
if d := l.Designation; d != nil {
l := d.List
if len(l) != 1 {
todo("", g.position0(n))
}
fld = l[0]
}
if !g.isConstInitializer(layout[fld].Type, l.Initializer) {
return false
}
fld++
}
return true
case *cc.UnionType:
layout := g.model.Layout(x)
var fld int64
for l := n.InitializerList; l != nil; l = l.InitializerList {
if fld < int64(len(layout)) {
for !layout[fld].Anonymous && (layout[fld].Bits < 0 || layout[fld].Declarator == nil) {
fld++
}
}
if d := l.Designation; d != nil {
l := d.List
if len(l) != 1 {
todo("", g.position0(n))
}
fld = l[0]
}
if !g.isConstInitializer(layout[fld].Type, l.Initializer) {
return false
}
fld++
}
return true
default:
todo("%v: %T %v", g.position0(n), x, t)
}
case cc.InitializerExpr: // Expr
op := n.Expr.Operand
if op.Value == nil || !g.voidCanIgnore(n.Expr) {
return false
}
switch x := underlyingType(t, true).(type) {
case *cc.ArrayType:
switch y := op.Value.(type) {
case *ir.StringValue:
if x.Size.Value != nil {
switch x.Item.Kind() {
case cc.Char, cc.SChar, cc.UChar:
return true
default:
return false
}
}
return false
default:
todo("%v: %T %v %v", g.position0(n), y, t, op)
}
case *cc.EnumType:
return true
case *cc.PointerType:
_, ok := op.Value.(*ir.Int64Value)
return ok
case cc.TypeKind:
if x.IsArithmeticType() {
return true
}
default:
todo("%v: %T %v %v", g.position0(n), x, t, op)
}
default:
todo("%v: %v", g.position0(n), n.Case)
}
panic("unreachable")
}
func (g *ngen) isConstInitializer(t cc.Type, n *cc.Initializer) bool {
switch n.Case {
case cc.InitializerCompLit: // '{' InitializerList CommaOpt '}'
switch x := underlyingType(t, true).(type) {
case *cc.ArrayType:
for l := n.InitializerList; l != nil; l = l.InitializerList {
if !g.isConstInitializer(x.Item, l.Initializer) {
return false
}
}
return true
case *cc.StructType:
layout := g.model.Layout(x)
var fld int64
for l := n.InitializerList; l != nil; l = l.InitializerList {
if fld < int64(len(layout)) {
for !layout[fld].Anonymous && (layout[fld].Bits < 0 || layout[fld].Declarator == nil) {
fld++
}
}
if d := l.Designation; d != nil {
l := d.List
if len(l) != 1 {
todo("", g.position(n))
}
fld = l[0]
}
if !g.isConstInitializer(layout[fld].Type, l.Initializer) {
return false
}
fld++
}
return true
case *cc.UnionType:
layout := g.model.Layout(x)
var fld int64
for l := n.InitializerList; l != nil; l = l.InitializerList {
if fld < int64(len(layout)) {
for !layout[fld].Anonymous && (layout[fld].Bits < 0 || layout[fld].Declarator == nil) {
fld++
}
}
if d := l.Designation; d != nil {
l := d.List
if len(l) != 1 {
todo("", g.position(n))
}
fld = l[0]
}
if !g.isConstInitializer(layout[fld].Type, l.Initializer) {
return false
}
fld++
}
return true
default:
todo("%v: %T %v", g.position(n), x, t)
}
case cc.InitializerExpr: // Expr
op := n.Expr.Operand
if op.Value == nil || !g.voidCanIgnore(n.Expr) {
return false
}
switch x := underlyingType(t, true).(type) {
case *cc.ArrayType:
switch y := op.Value.(type) {
case *ir.StringValue:
if x.Size.Value != nil {
switch x.Item.Kind() {
case cc.Char, cc.SChar, cc.UChar:
return true
default:
return false
}
}
return false
default:
todo("%v: %T %v %v", g.position(n), y, t, op)
}
case *cc.EnumType:
return true
case *cc.PointerType:
_, ok := op.Value.(*ir.Int64Value)
return ok
case cc.TypeKind:
if x.IsArithmeticType() {
return true
}
case *cc.StructType:
switch x := op.Value.(type) {
case *ir.Int64Value:
return true
default:
todo("%v: %T %v %v", g.position(n), x, t, op)
}
case *cc.UnionType:
switch x := op.Value.(type) {
case *ir.Int64Value:
return true
default:
todo("%v: %T %v %v", g.position(n), x, t, op)
}
default:
todo("%v: %T %v %v", g.position(n), x, t, op)
}
default:
todo("%v: %v", g.position(n), n.Case)
}
panic("unreachable")
}
func (g *gen) allocBSS(t cc.Type) int64 {
g.bss = roundup(g.bss, int64(g.model.Alignof(t)))
r := g.bss
g.bss += g.model.Sizeof(t)
return r
}
func (g *gen) allocDS(t cc.Type, n *cc.Initializer) int64 {
up := roundup(int64(len(g.ds)), int64(g.model.Alignof(t)))
if n := up - int64(len(g.ds)); n != 0 {
g.ds = append(g.ds, make([]byte, n)...)
}
r := len(g.ds)
b := make([]byte, g.model.Sizeof(t))
if !g.isConstInitializer(t, n) {
todo("%v: %v", g.position0(n), t)
}
g.renderInitializer(b, t, n)
g.ds = append(g.ds, b...)
return int64(r)
}
func (g *ngen) allocDS(t cc.Type, n *cc.Initializer) []byte {
b := make([]byte, g.model.Sizeof(t))
if !g.isConstInitializer(t, n) {
todo("%v: %v", g.position(n), t)
}
g.renderInitializer(b, t, n)
return b
}
func (g *gen) initializer(d *cc.Declarator) { // non TLD
n := d.Initializer
if n.Case == cc.InitializerExpr { // Expr
switch {
case g.escaped(d):
g.w("\n*(*%s)(unsafe.Pointer(%s))", g.typ(d.Type), g.mangleDeclarator(d))
default:
g.w("\n%s", g.mangleDeclarator(d))
}
g.w(" = ")
g.literal(d.Type, n)
return
}
if g.isConstInitializer(d.Type, n) {
b := make([]byte, g.model.Sizeof(d.Type))
g.renderInitializer(b, d.Type, n)
switch {
case g.escaped(d):
g.w("\n%sCopy(%s, ts+%d, %d)", crt, g.mangleDeclarator(d), g.allocString(dict.ID(b)), len(b))
default:
g.w("\n%s = *(*%s)(unsafe.Pointer(ts+%d))", g.mangleDeclarator(d), g.typ(d.Type), g.allocString(dict.ID(b)))
}
return
}
switch {
case g.initializerHasBitFields(d.Type, d.Initializer):
switch n.Case {
case cc.InitializerCompLit: // '{' InitializerList CommaOpt '}'
switch x := underlyingType(d.Type, true).(type) {
case *cc.StructType:
layout := g.model.Layout(x)
var fld int64
fields := x.Fields
for l := n.InitializerList; l != nil; l = l.InitializerList {
if fld < int64(len(layout)) {
for !layout[fld].Anonymous && (layout[fld].Bits < 0 || layout[fld].Declarator == nil) {
fld++
}
}
if d := l.Designation; d != nil {
l := d.List
if len(l) != 1 {
todo("", g.position0(n))
}
fld = l[0]
}
switch n := l.Initializer; n.Case {
case cc.InitializerCompLit: // '{' InitializerList CommaOpt '}'
todo("", g.position0(n))
case cc.InitializerExpr: // Expr
fp := x.Field(fields[fld].Name) //TODO mixed index fieds vs layout
e := &cc.Expr{
Case: cc.ExprAssign,
Expr: &cc.Expr{
Case: cc.ExprSelect,
Expr: &cc.Expr{
Case: cc.ExprIdent,
Declarator: d,
Scope: d.Scope,
Token: xc.Token{Val: d.Name()},
},
Operand: cc.Operand{Type: fp.Type, FieldProperties: fp},
Token2: xc.Token{Val: fields[fld].Name}, //TODO mixed index fieds vs layout
},
Expr2: n.Expr,
Operand: cc.Operand{Type: fp.Declarator.Type},
}
g.w("\n")
g.void(e)
}
fld++
}
default:
todo("%v: %T", g.position0(n), x)
}
case cc.InitializerExpr: // Expr
todo("", g.position0(n))
}
default:
switch {
case g.escaped(d):
g.w("\n*(*%s)(unsafe.Pointer(%s))", g.typ(d.Type), g.mangleDeclarator(d))
default:
g.w("\n%s", g.mangleDeclarator(d))
}
g.w(" = ")
g.literal(d.Type, n)
}
}
func (g *ngen) initializer(d *cc.Declarator) {
n := d.Initializer
if n.Case == cc.InitializerExpr { // Expr
switch {
case g.escaped(d):
g.w("\n*(*%s)(unsafe.Pointer(%s))", g.typ(d.Type), g.mangleDeclarator(d))
default:
g.w("\n%s", g.mangleDeclarator(d))
}
g.w(" = ")
g.literal(d.Type, n)
return
}
if g.isConstInitializer(d.Type, n) {
b := make([]byte, g.model.Sizeof(d.Type))
if !g.isZeroInitializer(n) {
g.renderInitializer(b, d.Type, n)
}
switch {
case g.escaped(d):
g.w("\n%sCopy(%s, %q, %d)", g.crtPrefix, g.mangleDeclarator(d), b, len(b))
default:
g.w("\n%s = *(*%s)(unsafe.Pointer(%q))", g.mangleDeclarator(d), g.typ(d.Type), b)
}
return
}
switch {
case g.initializerHasBitFields(d.Type, d.Initializer):
switch n.Case {
case cc.InitializerCompLit: // '{' InitializerList CommaOpt '}'
switch x := underlyingType(d.Type, true).(type) {
case *cc.StructType:
layout := g.model.Layout(x)
var fld int64
fields := x.Fields
for l := n.InitializerList; l != nil; l = l.InitializerList {
if fld < int64(len(layout)) {
for !layout[fld].Anonymous && (layout[fld].Bits < 0 || layout[fld].Declarator == nil) {
fld++
}
}
if d := l.Designation; d != nil {
l := d.List
if len(l) != 1 {
todo("", g.position(n))
}
fld = l[0]
}
switch n := l.Initializer; n.Case {
case cc.InitializerCompLit: // '{' InitializerList CommaOpt '}'
todo("", g.position(n))
case cc.InitializerExpr: // Expr
fp := x.Field(fields[fld].Name) //TODO mixed index fieds vs layout
e := &cc.Expr{
Case: cc.ExprAssign,
Expr: &cc.Expr{
Case: cc.ExprSelect,
Expr: &cc.Expr{
Case: cc.ExprIdent,
Declarator: d,
Scope: d.Scope,
Token: xc.Token{Val: d.Name()},
},
Operand: cc.Operand{Type: fp.Type, FieldProperties: fp},
Token2: xc.Token{Val: fields[fld].Name}, //TODO mixed index fieds vs layout
},
Expr2: n.Expr,
Operand: cc.Operand{Type: fp.Declarator.Type},
}
g.w("\n")
g.void(e)
}
fld++
}
default:
todo("%v: %T", g.position(n), x)
}
case cc.InitializerExpr: // Expr
todo("", g.position(n))
}
default:
switch {
case g.escaped(d):
g.w("\n*(*%s)(unsafe.Pointer(%s))", g.typ(d.Type), g.mangleDeclarator(d))
default:
g.w("\n%s", g.mangleDeclarator(d))
}
g.w(" = ")
g.literal(d.Type, n)
}
}
func (g *gen) initializerHasBitFields(t cc.Type, n *cc.Initializer) bool {
switch n.Case {
case cc.InitializerCompLit: // '{' InitializerList CommaOpt '}'
switch x := underlyingType(t, true).(type) {
case *cc.ArrayType:
index := 0
for l := n.InitializerList; l != nil; l = l.InitializerList {
if l.Designation != nil {
todo("", g.position0(n))
}
if g.initializerHasBitFields(x.Item, l.Initializer) {
return true
}
index++
}
return false
case *cc.StructType:
layout := g.model.Layout(x)
var fld int64
for l := n.InitializerList; l != nil; l = l.InitializerList {
if fld < int64(len(layout)) {
for !layout[fld].Anonymous && (layout[fld].Bits < 0 || layout[fld].Declarator == nil) {
fld++
}
}
if d := l.Designation; d != nil {
l := d.List
if len(l) != 1 {
todo("", g.position0(n))
}
fld = l[0]
}
if layout[fld].Bits > 0 {
return true
}
if g.initializerHasBitFields(layout[fld].Type, l.Initializer) {
return true
}
fld++
}
return false
default:
todo("%v: %T", g.position0(n), x)
}
case cc.InitializerExpr: // Expr
switch x := underlyingType(t, true).(type) {
case
*cc.EnumType,
*cc.PointerType,
*cc.StructType:
return false
case cc.TypeKind:
if x.IsScalarType() {
return false
}
todo("%v: %v", g.position0(n), x)
default:
todo("%v: %T", g.position0(n), x)
}
}
panic("unreachable")
}
func (g *ngen) initializerHasBitFields(t cc.Type, n *cc.Initializer) bool {
switch n.Case {
case cc.InitializerCompLit: // '{' InitializerList CommaOpt '}'
switch x := underlyingType(t, true).(type) {
case *cc.ArrayType:
index := 0
for l := n.InitializerList; l != nil; l = l.InitializerList {
if l.Designation != nil {
todo("", g.position(n))
}
if g.initializerHasBitFields(x.Item, l.Initializer) {
return true
}
index++
}
return false
case *cc.StructType:
layout := g.model.Layout(x)
var fld int64
for l := n.InitializerList; l != nil; l = l.InitializerList {
if fld < int64(len(layout)) {
for !layout[fld].Anonymous && (layout[fld].Bits < 0 || layout[fld].Declarator == nil) {
fld++
}
}
if d := l.Designation; d != nil {
l := d.List
if len(l) != 1 {
todo("", g.position(n))
}
fld = l[0]
}
if layout[fld].Bits > 0 {
return true
}
if g.initializerHasBitFields(layout[fld].Type, l.Initializer) {
return true
}
fld++
}
return false
case *cc.UnionType:
layout := g.model.Layout(x)
var fld int64
for l := n.InitializerList; l != nil; l = l.InitializerList {
if fld < int64(len(layout)) {
for !layout[fld].Anonymous && (layout[fld].Bits < 0 || layout[fld].Declarator == nil) {
fld++
}
}
if d := l.Designation; d != nil {
l := d.List
if len(l) != 1 {
todo("", g.position(n))
}
fld = l[0]
}
if layout[fld].Bits > 0 {
return true
}
if g.initializerHasBitFields(layout[fld].Type, l.Initializer) {
return true
}
fld++
}
return false
default:
todo("%v: %T", g.position(n), x)
}
case cc.InitializerExpr: // Expr
switch x := underlyingType(t, true).(type) {
case
*cc.EnumType,
*cc.PointerType,
*cc.StructType:
return false
case cc.TypeKind:
if x.IsScalarType() {
return false
}
todo("%v: %v", g.position(n), x)
default:
todo("%v: %T", g.position(n), x)
}
}
panic("unreachable")
}
func (g *gen) literal(t cc.Type, n *cc.Initializer) {
switch x := cc.UnderlyingType(t).(type) {
case *cc.ArrayType:
if n.Expr != nil {
switch x.Item.Kind() {
case
cc.Char,
cc.UChar:
g.w("*(*%s)(unsafe.Pointer(", g.typ(t))
switch n.Expr.Case {
case cc.ExprString:
s := dict.S(int(n.Expr.Operand.Value.(*ir.StringValue).StringID))
switch {
case x.Size.Value == nil:
g.w("ts+%d", g.allocString(dict.ID(s)))
default:
b := make([]byte, x.Size.Value.(*ir.Int64Value).Value)
copy(b, s)
if len(b) != 0 && b[len(b)-1] == 0 {
b = b[:len(b)-1]
}
g.w("ts+%d", g.allocString(dict.ID(b)))
}
default:
todo("", g.position0(n), n.Expr.Case)
}
g.w("))")
default:
todo("", g.position0(n), x.Item.Kind())
}
return
}
g.w("%s{", g.typ(t))
g.initializerListNL(n.InitializerList)
if !g.isZeroInitializer(n) {
index := 0
for l := n.InitializerList; l != nil; l = l.InitializerList {
if l.Designation != nil {
todo("", g.position0(n))
}
if !g.isZeroInitializer(l.Initializer) {
g.w("%d: ", index)
g.literal(x.Item, l.Initializer)
g.w(", ")
g.initializerListNL(n.InitializerList)
}
index++
}
}
g.w("}")
case *cc.PointerType:
if n.Expr.IsZero() || n.Expr.Operand.Value == cc.Null {
g.w("0")
return
}
g.value(n.Expr, false)
case *cc.StructType:
if n.Expr != nil {
g.value(n.Expr, false)
return
}
g.w("%s{", g.typ(t))
g.initializerListNL(n.InitializerList)
if !g.isZeroInitializer(n) {
layout := g.model.Layout(t)
var fld int64
fields := x.Fields
for l := n.InitializerList; l != nil; l = l.InitializerList {
if fld < int64(len(layout)) {
for !layout[fld].Anonymous && (layout[fld].Bits < 0 || layout[fld].Declarator == nil) {
fld++
}
}
if d := l.Designation; d != nil {
l := d.List
if len(l) != 1 {
todo("", g.position0(n))
}
fld = l[0]
}
switch {
case layout[fld].Bits > 0:
todo("bit field %v", g.position0(n))
}
if !g.isZeroInitializer(l.Initializer) {
d := fields[fld] //TODO mixed index fieds vs layout
g.w("%s: ", mangleIdent(d.Name, true))
g.literal(d.Type, l.Initializer)
g.w(", ")
g.initializerListNL(n.InitializerList)
}
fld++
}
}
g.w("}")
case *cc.EnumType:
switch n.Case {
case cc.InitializerExpr:
g.value(n.Expr, false)
default:
todo("", g.position0(n), n.Case)
}
case cc.TypeKind:
if x.IsArithmeticType() {
g.convert(n.Expr, t)
return
}
todo("", g.position0(n), x)
case *cc.UnionType:
// *(*struct{ X int32 })(unsafe.Pointer(&struct{int32}{int32(1)})),
if g.isZeroInitializer(n) {
g.w("%s{}", g.typ(t))
return
}
if n.Expr != nil {
todo("", g.position0(n), x)
return
}
g.w("*(*%s)(unsafe.Pointer(&struct{", g.typ(t))
if !g.isZeroInitializer(n) {
layout := g.model.Layout(t)
var fld int64
fields := x.Fields
for l := n.InitializerList; l != nil; l = l.InitializerList {
if fld < int64(len(layout)) {
for !layout[fld].Anonymous && (layout[fld].Bits < 0 || layout[fld].Declarator == nil) {
fld++
}
}
if d := l.Designation; d != nil {
l := d.List
if len(l) != 1 {
todo("", g.position0(n))
}
fld = l[0]
}
switch {
case layout[fld].Bits > 0:
todo("bit field %v", g.position0(n))
}
if fld != 0 {
todo("", g.position0(n))
}
d := fields[fld] //TODO mixed index fieds vs layout
switch pad := g.model.Sizeof(t) - g.model.Sizeof(d.Type); {
case pad == 0:
g.w("%s}{", g.typ(d.Type))
default:
g.w("f %s; _[%d]byte}{f: ", g.typ(d.Type), pad)
}
g.literal(d.Type, l.Initializer)
fld++
}
}
g.w("}))")
default:
todo("%v: %T", g.position0(n), x)
}
}
func (g *ngen) literal(t cc.Type, n *cc.Initializer) {
switch x := cc.UnderlyingType(t).(type) {
case *cc.ArrayType:
if n.Expr != nil {
it := x.Item
switch y := it.(type) {
case cc.TypeKind:
switch y {
case
cc.Char,
cc.UChar:
g.w("*(*%s)(unsafe.Pointer(", g.typ(t))
switch n.Expr.Case {
case cc.ExprString:
s := dict.S(int(n.Expr.Operand.Value.(*ir.StringValue).StringID))
switch {
case x.Size.Value == nil:
g.w("%q", s)
default:
b := make([]byte, x.Size.Value.(*ir.Int64Value).Value)
copy(b, s)
if len(b) != 0 && b[len(b)-1] == 0 {
b = b[:len(b)-1]
}
g.w("%q", string(b))
}
default:
todo("", g.position(n), n.Expr.Case)
}
g.w("))")
}
case *cc.NamedType:
switch {
case y.Name == idWcharT:
switch it := underlyingType(y.Type, false); it.Kind() {
case cc.Int:
sz := g.model.Sizeof(it)
g.w("*(*%s)(unsafe.Pointer(", g.typ(t))
switch n.Expr.Case {
case cc.ExprLString:
s := n.Expr.Operand.Value.(*ir.WideStringValue).Value
switch {
case x.Size.Value == nil:
todo("", g.position(n))
default:
b := make([]byte, len(s)*int(sz)+3)
for i, v := range s {
switch sz {
case 4:
*(*uint32)(unsafe.Pointer(&b[4*i])) = uint32(v)
default:
todo("", g.position(n), sz)
}
}
g.w("%q", string(b))
}
default:
todo("", g.position(n), n.Expr.Case)
}
g.w("))")
default:
todo("%v: %v", g.position(n), it)
}
default:
todo("%v:", g.position(n))
}
default:
todo("%v: %T", g.position(n), y)
}
return
}
g.w("%s{", g.typ(t))
g.initializerListNL(n.InitializerList)
if !g.isZeroInitializer(n) {
var index int64
for l := n.InitializerList; l != nil; l = l.InitializerList {
if d := l.Designation; d != nil {
l := d.List
if len(l) != 1 {
todo("", g.position(n))
}
index = l[0]
}
if !g.isZeroInitializer(l.Initializer) {
g.w("%d: ", index)
g.literal(x.Item, l.Initializer)
g.w(", ")
g.initializerListNL(n.InitializerList)
}
index++
}
}
g.w("}")
case *cc.PointerType:
if n.Expr.IsZero() && g.voidCanIgnore(n.Expr) || n.Expr.Operand.Value == cc.Null {
g.w("0")
return
}
g.value(n.Expr, false)
case *cc.StructType:
if n.Expr != nil {
g.value(n.Expr, false)
return
}
g.w("%s{", g.typ(t))
g.initializerListNL(n.InitializerList)
if !g.isZeroInitializer(n) {
layout := g.model.Layout(t)
var fld int64
fields := x.Fields
for l := n.InitializerList; l != nil; l = l.InitializerList {
if fld < int64(len(layout)) {
for !layout[fld].Anonymous && (layout[fld].Bits < 0 || layout[fld].Declarator == nil) {
fld++
}
}
if d := l.Designation; d != nil {
l := d.List
if len(l) != 1 {
todo("", g.position(n))
}
fld = l[0]
}
switch {
case layout[fld].Bits > 0:
todo("bit field %v", g.position(n))
}
if !g.isZeroInitializer(l.Initializer) {
d := fields[fld] //TODO mixed index fieds vs layout
g.w("F%s: ", dict.S(d.Name))
g.literal(d.Type, l.Initializer)
g.w(", ")
g.initializerListNL(n.InitializerList)
}
fld++
}
}
g.w("}")
case *cc.EnumType:
switch n.Case {
case cc.InitializerExpr:
todo("", g.position(n))
//TODO g.value(n.Expr, false)
default:
todo("", g.position(n), n.Case)
}
case cc.TypeKind:
if x.IsArithmeticType() {
g.convert(n.Expr, t)
return
}
todo("", g.position(n), x)
case *cc.UnionType:
// *(*struct{ X int32 })(unsafe.Pointer(&struct{int32}{int32(1)})),
if g.isZeroInitializer(n) {
g.w("%s{}", g.typ(t))
return
}