mirror of
https://github.com/golang/go
synced 2024-11-23 00:40:08 -07:00
use embedded types to save boilerplate - almost 300 lines' worth
R=rsc DELTA=427 (53 added, 302 deleted, 72 changed) OCL=17857 CL=17868
This commit is contained in:
Rob Pike
parent
db25e787fe
commit
c4af3e7c2a
@ -47,28 +47,33 @@ export type Type interface {
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Size() uint64;
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}
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// -- Basic
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type BasicType struct{
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// Fields and methods common to all types
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type Common struct {
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kind int;
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name string;
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size uint64;
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}
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func (c *Common) Name() string {
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return c.name
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}
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func (c *Common) Kind() int {
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return c.kind
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}
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func (c *Common) Size() uint64 {
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return c.size
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}
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// -- Basic
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type BasicType struct {
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Common
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}
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func NewBasicType(name string, kind int, size uint64) Type {
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return &BasicType{kind, name, size}
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}
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func (t *BasicType) Name() string {
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return t.name
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}
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func (t *BasicType) Kind() int {
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return t.kind
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}
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func (t *BasicType) Size() uint64 {
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return t.size
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return &BasicType{ Common{kind, name, size} }
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}
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// Prebuilt basic types
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@ -114,24 +119,12 @@ export type PtrType interface {
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}
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type PtrTypeStruct struct {
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name string;
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Common;
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sub *StubType;
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}
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func NewPtrTypeStruct(name string, sub *StubType) *PtrTypeStruct {
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return &PtrTypeStruct{name, sub}
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}
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func (t *PtrTypeStruct) Kind() int {
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return PtrKind
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}
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func (t *PtrTypeStruct) Name() string {
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return t.name
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}
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func (t *PtrTypeStruct) Size() uint64 {
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return ptrsize
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return &PtrTypeStruct{ Common{PtrKind, name, ptrsize}, sub}
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}
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func (t *PtrTypeStruct) Sub() Type {
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@ -147,22 +140,14 @@ export type ArrayType interface {
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}
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type ArrayTypeStruct struct {
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name string;
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Common;
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elem *StubType;
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open bool; // otherwise fixed size
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len uint64;
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}
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func NewArrayTypeStruct(name string, open bool, len uint64, elem *StubType) *ArrayTypeStruct {
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return &ArrayTypeStruct{name, elem, open, len}
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}
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func (t *ArrayTypeStruct) Kind() int {
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return ArrayKind
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}
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func (t *ArrayTypeStruct) Name() string {
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return t.name
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return &ArrayTypeStruct{ Common{ArrayKind, name, 0}, elem, open, len}
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}
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func (t *ArrayTypeStruct) Size() uint64 {
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@ -193,21 +178,13 @@ export type MapType interface {
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}
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type MapTypeStruct struct {
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name string;
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Common;
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key *StubType;
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elem *StubType;
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}
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func NewMapTypeStruct(name string, key, elem *StubType) *MapTypeStruct {
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return &MapTypeStruct{name, key, elem}
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}
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func (t *MapTypeStruct) Kind() int {
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return MapKind
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}
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func (t *MapTypeStruct) Name() string {
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return t.name
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return &MapTypeStruct{ Common{MapKind, name, 0}, key, elem}
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}
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func (t *MapTypeStruct) Size() uint64 {
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@ -237,21 +214,13 @@ export const ( // channel direction
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)
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type ChanTypeStruct struct {
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name string;
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Common;
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elem *StubType;
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dir int;
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}
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func NewChanTypeStruct(name string, dir int, elem *StubType) *ChanTypeStruct {
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return &ChanTypeStruct{name, elem, dir}
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}
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func (t *ChanTypeStruct) Kind() int {
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return ChanKind
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}
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func (t *ChanTypeStruct) Name() string {
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return t.name
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return &ChanTypeStruct{ Common{ChanKind, name, 0}, elem, dir}
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}
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func (t *ChanTypeStruct) Size() uint64 {
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@ -260,7 +229,6 @@ func (t *ChanTypeStruct) Size() uint64 {
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}
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func (t *ChanTypeStruct) Dir() int {
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// -1 is open array? TODO
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return t.dir
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}
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@ -283,24 +251,19 @@ type Field struct {
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}
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type StructTypeStruct struct {
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name string;
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Common;
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field *[]Field;
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}
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func NewStructTypeStruct(name string, field *[]Field) *StructTypeStruct {
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return &StructTypeStruct{name, field}
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}
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func (t *StructTypeStruct) Kind() int {
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return StructKind
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}
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func (t *StructTypeStruct) Name() string {
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return t.name
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return &StructTypeStruct{ Common{StructKind, name, 0}, field}
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}
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// TODO: not portable; depends on 6g
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func (t *StructTypeStruct) Size() uint64 {
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if t.size > 0 {
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return t.size
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}
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size := uint64(0);
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for i := 0; i < len(t.field); i++ {
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elemsize := t.field[i].typ.Get().Size();
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@ -316,6 +279,7 @@ func (t *StructTypeStruct) Size() uint64 {
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size += elemsize;
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}
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size = (size + 7) & ((1<<64 - 1) & ^7);
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t.size = size;
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return size;
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}
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@ -338,12 +302,12 @@ export type InterfaceType interface {
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}
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type InterfaceTypeStruct struct {
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name string;
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Common;
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field *[]Field;
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}
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func NewInterfaceTypeStruct(name string, field *[]Field) *InterfaceTypeStruct {
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return &InterfaceTypeStruct{name, field}
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return &InterfaceTypeStruct{ Common{InterfaceKind, name, interfacesize}, field }
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}
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func (t *InterfaceTypeStruct) Field(i int) (name string, typ Type, offset uint64) {
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@ -354,18 +318,6 @@ func (t *InterfaceTypeStruct) Len() int {
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return len(t.field)
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}
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func (t *InterfaceTypeStruct) Kind() int {
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return InterfaceKind
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}
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func (t *InterfaceTypeStruct) Name() string {
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return t.name
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}
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func (t *InterfaceTypeStruct) Size() uint64 {
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return interfacesize
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}
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// -- Func
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export type FuncType interface {
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@ -374,21 +326,13 @@ export type FuncType interface {
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}
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type FuncTypeStruct struct {
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name string;
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Common;
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in *StructTypeStruct;
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out *StructTypeStruct;
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}
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func NewFuncTypeStruct(name string, in, out *StructTypeStruct) *FuncTypeStruct {
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return &FuncTypeStruct{name, in, out}
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}
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func (t *FuncTypeStruct) Kind() int {
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return FuncKind
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}
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func (t *FuncTypeStruct) Name() string {
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return t.name
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return &FuncTypeStruct{ Common{FuncKind, name, 0}, in, out }
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}
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func (t *FuncTypeStruct) Size() uint64 {
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@ -19,6 +19,22 @@ export type Value interface {
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Type() Type;
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}
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// Common fields and functionality for all values
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type CommonV struct { // BUG: want to call this Common but 6g does not hide the name
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kind int;
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typ Type;
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addr Addr;
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}
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func (c *CommonV) Kind() int {
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return c.kind
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}
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func (c *CommonV) Type() Type {
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return c.typ
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}
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func NewValueAddr(typ Type, addr Addr) Value
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type Creator *(typ Type, addr Addr) Value
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@ -50,19 +66,11 @@ export type Int8Value interface {
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}
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type Int8ValueStruct struct {
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addr Addr
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CommonV
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}
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func Int8Creator(typ Type, addr Addr) Value {
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return &Int8ValueStruct{addr}
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}
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func (v *Int8ValueStruct) Kind() int {
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return Int8Kind
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}
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func (v *Int8ValueStruct) Type() Type {
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return Int8
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return &Int8ValueStruct{ CommonV{Int8Kind, typ, addr} }
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}
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func (v *Int8ValueStruct) Get() int8 {
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@ -83,19 +91,11 @@ export type Int16Value interface {
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}
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type Int16ValueStruct struct {
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addr Addr
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CommonV
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}
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func Int16Creator(typ Type, addr Addr) Value {
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return &Int16ValueStruct{addr}
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}
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func (v *Int16ValueStruct) Kind() int {
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return Int16Kind
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}
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func (v *Int16ValueStruct) Type() Type {
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return Int16
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return &Int16ValueStruct{ CommonV{Int16Kind, typ, addr} }
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}
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func (v *Int16ValueStruct) Get() int16 {
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@ -116,19 +116,11 @@ export type Int32Value interface {
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}
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type Int32ValueStruct struct {
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addr Addr
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CommonV
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}
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func Int32Creator(typ Type, addr Addr) Value {
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return &Int32ValueStruct{addr}
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}
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func (v *Int32ValueStruct) Type() Type {
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return Int32
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}
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func (v *Int32ValueStruct) Kind() int {
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return Int32Kind
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return &Int32ValueStruct{ CommonV{Int32Kind, typ, addr} }
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}
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func (v *Int32ValueStruct) Get() int32 {
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@ -149,19 +141,11 @@ export type Int64Value interface {
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}
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type Int64ValueStruct struct {
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addr Addr
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CommonV
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}
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func Int64Creator(typ Type, addr Addr) Value {
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return &Int64ValueStruct{addr}
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}
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func (v *Int64ValueStruct) Kind() int {
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return Int64Kind
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}
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func (v *Int64ValueStruct) Type() Type {
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return Int64
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return &Int64ValueStruct{ CommonV{Int64Kind, typ, addr} }
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}
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func (v *Int64ValueStruct) Get() int64 {
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@ -182,19 +166,11 @@ export type Uint8Value interface {
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}
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type Uint8ValueStruct struct {
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addr Addr
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CommonV
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}
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func Uint8Creator(typ Type, addr Addr) Value {
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return &Uint8ValueStruct{addr}
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}
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func (v *Uint8ValueStruct) Kind() int {
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return Uint8Kind
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}
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func (v *Uint8ValueStruct) Type() Type {
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return Uint8
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return &Uint8ValueStruct{ CommonV{Uint8Kind, typ, addr} }
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}
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func (v *Uint8ValueStruct) Get() uint8 {
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@ -215,19 +191,11 @@ export type Uint16Value interface {
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}
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type Uint16ValueStruct struct {
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addr Addr
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CommonV
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}
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func Uint16Creator(typ Type, addr Addr) Value {
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return &Uint16ValueStruct{addr}
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}
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func (v *Uint16ValueStruct) Kind() int {
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return Uint16Kind
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}
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func (v *Uint16ValueStruct) Type() Type {
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return Uint16
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return &Uint16ValueStruct{ CommonV{Uint16Kind, typ, addr} }
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}
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func (v *Uint16ValueStruct) Get() uint16 {
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@ -248,19 +216,11 @@ export type Uint32Value interface {
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}
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type Uint32ValueStruct struct {
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addr Addr
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CommonV
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}
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func Uint32Creator(typ Type, addr Addr) Value {
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return &Uint32ValueStruct{addr}
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}
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func (v *Uint32ValueStruct) Kind() int {
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return Uint32Kind
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}
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func (v *Uint32ValueStruct) Type() Type {
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return Uint32
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return &Uint32ValueStruct{ CommonV{Uint32Kind, typ, addr} }
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}
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func (v *Uint32ValueStruct) Get() uint32 {
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@ -281,19 +241,11 @@ export type Uint64Value interface {
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}
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type Uint64ValueStruct struct {
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addr Addr
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CommonV
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}
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func Uint64Creator(typ Type, addr Addr) Value {
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return &Uint64ValueStruct{addr}
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}
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func (v *Uint64ValueStruct) Kind() int {
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return Uint64Kind
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}
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func (v *Uint64ValueStruct) Type() Type {
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return Uint64
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return &Uint64ValueStruct{ CommonV{Uint64Kind, typ, addr} }
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}
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func (v *Uint64ValueStruct) Get() uint64 {
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@ -314,19 +266,11 @@ export type Float32Value interface {
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}
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type Float32ValueStruct struct {
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addr Addr
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CommonV
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}
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func Float32Creator(typ Type, addr Addr) Value {
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return &Float32ValueStruct{addr}
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}
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func (v *Float32ValueStruct) Kind() int {
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return Float32Kind
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}
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func (v *Float32ValueStruct) Type() Type {
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return Float32
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return &Float32ValueStruct{ CommonV{Float32Kind, typ, addr} }
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}
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func (v *Float32ValueStruct) Get() float32 {
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@ -347,19 +291,11 @@ export type Float64Value interface {
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}
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type Float64ValueStruct struct {
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addr Addr
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CommonV
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}
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func Float64Creator(typ Type, addr Addr) Value {
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return &Float64ValueStruct{addr}
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}
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func (v *Float64ValueStruct) Kind() int {
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return Float64Kind
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}
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func (v *Float64ValueStruct) Type() Type {
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return Float64
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return &Float64ValueStruct{ CommonV{Float64Kind, typ, addr} }
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}
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func (v *Float64ValueStruct) Get() float64 {
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@ -380,19 +316,11 @@ export type Float80Value interface {
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}
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type Float80ValueStruct struct {
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addr Addr
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CommonV
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}
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func Float80Creator(typ Type, addr Addr) Value {
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return &Float80ValueStruct{addr}
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}
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func (v *Float80ValueStruct) Kind() int {
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return Float80Kind
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}
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func (v *Float80ValueStruct) Type() Type {
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return Float80
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return &Float80ValueStruct{ CommonV{Float80Kind, typ, addr} }
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}
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/*
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@ -417,19 +345,11 @@ export type StringValue interface {
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}
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type StringValueStruct struct {
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addr Addr
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CommonV
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}
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func StringCreator(typ Type, addr Addr) Value {
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return &StringValueStruct{addr}
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}
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func (v *StringValueStruct) Kind() int {
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return StringKind
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}
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func (v *StringValueStruct) Type() Type {
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return String
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return &StringValueStruct{ CommonV{StringKind, typ, addr} }
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}
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func (v *StringValueStruct) Get() string {
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@ -450,16 +370,7 @@ export type PtrValue interface {
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}
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type PtrValueStruct struct {
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addr Addr;
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typ Type;
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}
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func (v *PtrValueStruct) Kind() int {
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return PtrKind
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}
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func (v *PtrValueStruct) Type() Type {
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return v.typ
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CommonV
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}
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func (v *PtrValueStruct) Get() Addr {
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@ -471,10 +382,10 @@ func (v *PtrValueStruct) Sub() Value {
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}
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func PtrCreator(typ Type, addr Addr) Value {
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return &PtrValueStruct{addr, typ};
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return &PtrValueStruct{ CommonV{PtrKind, typ, addr} };
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}
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// -- Array TODO: finish and test
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// -- Array
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|
||||
export type ArrayValue interface {
|
||||
Kind() int;
|
||||
@ -485,11 +396,11 @@ export type ArrayValue interface {
|
||||
}
|
||||
|
||||
type OpenArrayValueStruct struct {
|
||||
addr Addr;
|
||||
typ Type;
|
||||
CommonV;
|
||||
elemtype Type;
|
||||
elemsize uint64;
|
||||
}
|
||||
|
||||
/*
|
||||
Run-time representation of open arrays looks like this:
|
||||
struct Array {
|
||||
@ -498,14 +409,6 @@ type OpenArrayValueStruct struct {
|
||||
};
|
||||
*/
|
||||
|
||||
func (v *OpenArrayValueStruct) Kind() int {
|
||||
return ArrayKind
|
||||
}
|
||||
|
||||
func (v *OpenArrayValueStruct) Type() Type {
|
||||
return v.typ
|
||||
}
|
||||
|
||||
func (v *OpenArrayValueStruct) Open() bool {
|
||||
return true
|
||||
}
|
||||
@ -520,21 +423,12 @@ func (v *OpenArrayValueStruct) Elem(i uint64) Value {
|
||||
}
|
||||
|
||||
type FixedArrayValueStruct struct {
|
||||
addr Addr;
|
||||
typ Type;
|
||||
CommonV;
|
||||
elemtype Type;
|
||||
elemsize uint64;
|
||||
len uint64;
|
||||
}
|
||||
|
||||
func (v *FixedArrayValueStruct) Kind() int {
|
||||
return ArrayKind
|
||||
}
|
||||
|
||||
func (v *FixedArrayValueStruct) Type() Type {
|
||||
return v.typ
|
||||
}
|
||||
|
||||
func (v *FixedArrayValueStruct) Open() bool {
|
||||
return false
|
||||
}
|
||||
@ -552,6 +446,7 @@ func ArrayCreator(typ Type, addr Addr) Value {
|
||||
arraytype := typ.(ArrayType);
|
||||
if arraytype.Open() {
|
||||
v := new(OpenArrayValueStruct);
|
||||
v.kind = ArrayKind;
|
||||
v.addr = addr;
|
||||
v.typ = typ;
|
||||
v.elemtype = arraytype.Elem();
|
||||
@ -559,6 +454,7 @@ func ArrayCreator(typ Type, addr Addr) Value {
|
||||
return v;
|
||||
}
|
||||
v := new(FixedArrayValueStruct);
|
||||
v.kind = ArrayKind;
|
||||
v.addr = addr;
|
||||
v.typ = typ;
|
||||
v.elemtype = arraytype.Elem();
|
||||
@ -577,20 +473,11 @@ export type MapValue interface {
|
||||
}
|
||||
|
||||
type MapValueStruct struct {
|
||||
addr Addr;
|
||||
typ Type;
|
||||
CommonV
|
||||
}
|
||||
|
||||
func MapCreator(typ Type, addr Addr) Value {
|
||||
return &MapValueStruct{addr, typ}
|
||||
}
|
||||
|
||||
func (v *MapValueStruct) Kind() int {
|
||||
return MapKind
|
||||
}
|
||||
|
||||
func (v *MapValueStruct) Type() Type {
|
||||
return v.typ
|
||||
return &MapValueStruct{ CommonV{MapKind, typ, addr} }
|
||||
}
|
||||
|
||||
func (v *MapValueStruct) Len() int {
|
||||
@ -610,20 +497,11 @@ export type ChanValue interface {
|
||||
}
|
||||
|
||||
type ChanValueStruct struct {
|
||||
addr Addr;
|
||||
typ Type;
|
||||
CommonV
|
||||
}
|
||||
|
||||
func ChanCreator(typ Type, addr Addr) Value {
|
||||
return &ChanValueStruct{addr, typ}
|
||||
}
|
||||
|
||||
func (v *ChanValueStruct) Kind() int {
|
||||
return ChanKind
|
||||
}
|
||||
|
||||
func (v *ChanValueStruct) Type() Type {
|
||||
return v.typ
|
||||
return &ChanValueStruct{ CommonV{ChanKind, typ, addr} }
|
||||
}
|
||||
|
||||
// -- Struct
|
||||
@ -636,19 +514,10 @@ export type StructValue interface {
|
||||
}
|
||||
|
||||
type StructValueStruct struct {
|
||||
addr Addr;
|
||||
typ Type;
|
||||
CommonV;
|
||||
field *[]Value;
|
||||
}
|
||||
|
||||
func (v *StructValueStruct) Kind() int {
|
||||
return StructKind
|
||||
}
|
||||
|
||||
func (v *StructValueStruct) Type() Type {
|
||||
return v.typ
|
||||
}
|
||||
|
||||
func (v *StructValueStruct) Len() int {
|
||||
return len(v.field)
|
||||
}
|
||||
@ -659,10 +528,8 @@ func (v *StructValueStruct) Field(i int) Value {
|
||||
|
||||
func StructCreator(typ Type, addr Addr) Value {
|
||||
t := typ.(StructType);
|
||||
v := new(StructValueStruct);
|
||||
v.addr = addr;
|
||||
nfield := t.Len();
|
||||
v.field = new([]Value, nfield);
|
||||
v := &StructValueStruct{ CommonV{StructKind, typ, addr}, new([]Value, nfield) };
|
||||
for i := 0; i < nfield; i++ {
|
||||
name, ftype, offset := t.Field(i);
|
||||
v.field[i] = NewValueAddr(ftype, addr + offset);
|
||||
@ -679,20 +546,11 @@ export type InterfaceValue interface {
|
||||
}
|
||||
|
||||
type InterfaceValueStruct struct {
|
||||
addr Addr;
|
||||
typ Type;
|
||||
CommonV
|
||||
}
|
||||
|
||||
func InterfaceCreator(typ Type, addr Addr) Value {
|
||||
return &InterfaceValueStruct{addr, typ}
|
||||
}
|
||||
|
||||
func (v *InterfaceValueStruct) Kind() int {
|
||||
return InterfaceKind
|
||||
}
|
||||
|
||||
func (v *InterfaceValueStruct) Type() Type {
|
||||
return v.typ
|
||||
return &InterfaceValueStruct{ CommonV{InterfaceKind, typ, addr} }
|
||||
}
|
||||
|
||||
// -- Func
|
||||
@ -703,20 +561,11 @@ export type FuncValue interface {
|
||||
}
|
||||
|
||||
type FuncValueStruct struct {
|
||||
addr Addr;
|
||||
typ Type;
|
||||
CommonV
|
||||
}
|
||||
|
||||
func FuncCreator(typ Type, addr Addr) Value {
|
||||
return &FuncValueStruct{addr, typ}
|
||||
}
|
||||
|
||||
func (v *FuncValueStruct) Kind() int {
|
||||
return FuncKind
|
||||
}
|
||||
|
||||
func (v *FuncValueStruct) Type() Type {
|
||||
return v.typ
|
||||
return &FuncValueStruct{ CommonV{FuncKind, typ, addr} }
|
||||
}
|
||||
|
||||
var creator *map[int] Creator
|
||||
|
||||
@ -35,6 +35,17 @@ type Inst interface {
|
||||
Print();
|
||||
}
|
||||
|
||||
// Fields and methods common to all instructions
|
||||
type Common struct {
|
||||
next Inst;
|
||||
index int;
|
||||
}
|
||||
|
||||
func (c *Common) Next() Inst { return c.next }
|
||||
func (c *Common) SetNext(i Inst) { c.next = i }
|
||||
func (c *Common) Index() int { return c.index }
|
||||
func (c *Common) SetIndex(i int) { c.index = i }
|
||||
|
||||
type RE struct {
|
||||
expr string; // the original expression
|
||||
ch *chan<- *RE; // reply channel when we're done
|
||||
@ -61,68 +72,43 @@ const (
|
||||
|
||||
// --- START start of program
|
||||
type Start struct {
|
||||
next Inst;
|
||||
index int;
|
||||
Common
|
||||
}
|
||||
|
||||
func (start *Start) Type() int { return START }
|
||||
func (start *Start) Next() Inst { return start.next }
|
||||
func (start *Start) SetNext(i Inst) { start.next = i }
|
||||
func (start *Start) Index() int { return start.index }
|
||||
func (start *Start) SetIndex(i int) { start.index = i }
|
||||
func (start *Start) Print() { print("start") }
|
||||
|
||||
// --- END end of program
|
||||
type End struct {
|
||||
next Inst;
|
||||
index int;
|
||||
Common
|
||||
}
|
||||
|
||||
func (end *End) Type() int { return END }
|
||||
func (end *End) Next() Inst { return end.next }
|
||||
func (end *End) SetNext(i Inst) { end.next = i }
|
||||
func (end *End) Index() int { return end.index }
|
||||
func (end *End) SetIndex(i int) { end.index = i }
|
||||
func (end *End) Print() { print("end") }
|
||||
|
||||
// --- BOT beginning of text
|
||||
type Bot struct {
|
||||
next Inst;
|
||||
index int;
|
||||
Common
|
||||
}
|
||||
|
||||
func (bot *Bot) Type() int { return BOT }
|
||||
func (bot *Bot) Next() Inst { return bot.next }
|
||||
func (bot *Bot) SetNext(i Inst) { bot.next = i }
|
||||
func (bot *Bot) Index() int { return bot.index }
|
||||
func (bot *Bot) SetIndex(i int) { bot.index = i }
|
||||
func (bot *Bot) Print() { print("bot") }
|
||||
|
||||
// --- EOT end of text
|
||||
type Eot struct {
|
||||
next Inst;
|
||||
index int;
|
||||
Common
|
||||
}
|
||||
|
||||
func (eot *Eot) Type() int { return EOT }
|
||||
func (eot *Eot) Next() Inst { return eot.next }
|
||||
func (eot *Eot) SetNext(i Inst) { eot.next = i }
|
||||
func (eot *Eot) Index() int { return eot.index }
|
||||
func (eot *Eot) SetIndex(i int) { eot.index = i }
|
||||
func (eot *Eot) Print() { print("eot") }
|
||||
|
||||
// --- CHAR a regular character
|
||||
type Char struct {
|
||||
next Inst;
|
||||
index int;
|
||||
Common;
|
||||
char int;
|
||||
}
|
||||
|
||||
func (char *Char) Type() int { return CHAR }
|
||||
func (char *Char) Next() Inst { return char.next }
|
||||
func (char *Char) SetNext(i Inst) { char.next = i }
|
||||
func (char *Char) Index() int { return char.index }
|
||||
func (char *Char) SetIndex(i int) { char.index = i }
|
||||
func (char *Char) Print() { print("char ", string(char.char)) }
|
||||
|
||||
func NewChar(char int) *Char {
|
||||
@ -134,8 +120,7 @@ func NewChar(char int) *Char {
|
||||
// --- CHARCLASS [a-z]
|
||||
|
||||
type CharClass struct {
|
||||
next Inst;
|
||||
index int;
|
||||
Common;
|
||||
char int;
|
||||
negate bool; // is character class negated? ([^a-z])
|
||||
// Vector of int, stored pairwise: [a-z] is (a,z); x is (x,x):
|
||||
@ -143,10 +128,7 @@ type CharClass struct {
|
||||
}
|
||||
|
||||
func (cclass *CharClass) Type() int { return CHARCLASS }
|
||||
func (cclass *CharClass) Next() Inst { return cclass.next }
|
||||
func (cclass *CharClass) SetNext(i Inst) { cclass.next = i }
|
||||
func (cclass *CharClass) Index() int { return cclass.index }
|
||||
func (cclass *CharClass) SetIndex(i int) { cclass.index = i }
|
||||
|
||||
func (cclass *CharClass) Print() {
|
||||
print("charclass");
|
||||
if cclass.negate {
|
||||
@ -188,70 +170,45 @@ func NewCharClass() *CharClass {
|
||||
|
||||
// --- ANY any character
|
||||
type Any struct {
|
||||
next Inst;
|
||||
index int;
|
||||
Common
|
||||
}
|
||||
|
||||
func (any *Any) Type() int { return ANY }
|
||||
func (any *Any) Next() Inst { return any.next }
|
||||
func (any *Any) SetNext(i Inst) { any.next = i }
|
||||
func (any *Any) Index() int { return any.index }
|
||||
func (any *Any) SetIndex(i int) { any.index = i }
|
||||
func (any *Any) Print() { print("any") }
|
||||
|
||||
// --- BRA parenthesized expression
|
||||
type Bra struct {
|
||||
next Inst;
|
||||
index int;
|
||||
Common;
|
||||
n int; // subexpression number
|
||||
}
|
||||
|
||||
func (bra *Bra) Type() int { return BRA }
|
||||
func (bra *Bra) Next() Inst { return bra.next }
|
||||
func (bra *Bra) SetNext(i Inst) { bra.next = i }
|
||||
func (bra *Bra) Index() int { return bra.index }
|
||||
func (bra *Bra) SetIndex(i int) { bra.index = i }
|
||||
func (bra *Bra) Print() { print("bra"); }
|
||||
func (bra *Bra) Print() { print("bra", bra.n); }
|
||||
|
||||
// --- EBRA end of parenthesized expression
|
||||
type Ebra struct {
|
||||
next Inst;
|
||||
index int;
|
||||
Common;
|
||||
n int; // subexpression number
|
||||
}
|
||||
|
||||
func (ebra *Ebra) Type() int { return EBRA }
|
||||
func (ebra *Ebra) Next() Inst { return ebra.next }
|
||||
func (ebra *Ebra) SetNext(i Inst) { ebra.next = i }
|
||||
func (ebra *Ebra) Index() int { return ebra.index }
|
||||
func (ebra *Ebra) SetIndex(i int) { ebra.index = i }
|
||||
func (ebra *Ebra) Print() { print("ebra ", ebra.n); }
|
||||
|
||||
// --- ALT alternation
|
||||
type Alt struct {
|
||||
next Inst;
|
||||
index int;
|
||||
Common;
|
||||
left Inst; // other branch
|
||||
}
|
||||
|
||||
func (alt *Alt) Type() int { return ALT }
|
||||
func (alt *Alt) Next() Inst { return alt.next }
|
||||
func (alt *Alt) SetNext(i Inst) { alt.next = i }
|
||||
func (alt *Alt) Index() int { return alt.index }
|
||||
func (alt *Alt) SetIndex(i int) { alt.index = i }
|
||||
func (alt *Alt) Print() { print("alt(", alt.left.Index(), ")"); }
|
||||
|
||||
// --- NOP no operation
|
||||
type Nop struct {
|
||||
next Inst;
|
||||
index int;
|
||||
Common
|
||||
}
|
||||
|
||||
func (nop *Nop) Type() int { return NOP }
|
||||
func (nop *Nop) Next() Inst { return nop.next }
|
||||
func (nop *Nop) SetNext(i Inst) { nop.next = i }
|
||||
func (nop *Nop) Index() int { return nop.index }
|
||||
func (nop *Nop) SetIndex(i int) { nop.index = i }
|
||||
func (nop *Nop) Print() { print("nop") }
|
||||
|
||||
// report error and exit compiling/executing goroutine
|
||||
@ -312,7 +269,7 @@ Grammar:
|
||||
'$'
|
||||
'.'
|
||||
character
|
||||
'[' character-ranges ']'
|
||||
'[' [ '^' ] character-ranges ']'
|
||||
'(' regexp ')'
|
||||
|
||||
*/
|
||||
|
||||
Loading…
Reference in New Issue
Block a user