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field_type.go
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field_type.go
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package thrifter
// the definition of what kind of field type
const (
FIELD_TYPE_IDENT = iota + 1
FIELD_TYPE_BASE
FIELD_TYPE_MAP
FIELD_TYPE_LIST
FIELD_TYPE_SET
)
type FieldType struct {
NodeCommonField
Type int
Ident string
BaseType string
Map *MapType
List *ListType
Set *SetType
Options []*Option
}
func NewFieldType(parent Node) *FieldType {
return &FieldType{
NodeCommonField: NodeCommonField{
Parent: parent,
},
}
}
func (r *FieldType) NodeType() string {
return "FieldType"
}
func (r *FieldType) NodeValue() interface{} {
return *r
}
func (r *FieldType) String() string {
return toString(r.StartToken, r.EndToken)
}
func (r *FieldType) parse(p *Parser) (err error) {
p.peekNonWhitespace()
identTok := p.nextIdent(true)
r.StartToken = identTok
if isBaseTypeToken(identTok.Raw) {
r.Type = FIELD_TYPE_BASE
r.BaseType = identTok.Raw
r.EndToken = identTok
} else if identTok.Raw == "map" {
r.Type = FIELD_TYPE_MAP
r.Map = NewMapType(identTok, r)
if err = r.Map.parse(p); err != nil {
return
}
r.EndToken = r.Map.EndToken
} else if identTok.Raw == "set" {
r.Type = FIELD_TYPE_SET
r.Set = NewSetType(identTok, r)
if err = r.Set.parse(p); err != nil {
return
}
r.EndToken = r.Set.EndToken
} else if identTok.Raw == "list" {
r.Type = FIELD_TYPE_LIST
r.List = NewListType(identTok, r)
if err = r.List.parse(p); err != nil {
return
}
r.EndToken = r.List.EndToken
} else {
r.Type = FIELD_TYPE_IDENT
r.Ident = identTok.Raw
r.EndToken = identTok
}
// parse options
// list type may save token to buffer, since it need to scan next cpp_type token
if p.buf != nil {
if p.buf.Type != T_LEFTPAREN {
return
}
p.buf = nil
r.Options, r.EndToken, err = parseOptions(p, r)
if err != nil {
return err
}
} else {
ru := p.peekNonWhitespace()
if toToken(string(ru)) != T_LEFTPAREN {
return
}
p.next() // consume (
r.Options, r.EndToken, err = parseOptions(p, r)
if err != nil {
return err
}
}
return
}