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symbol.go
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symbol.go
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package slang
import (
"strings"
"golang.org/x/exp/slices"
)
type Symbol struct {
Parts []string
Type SymbolType
}
type SymbolType int
const (
SymbolCLASS SymbolType = iota
SymbolFUNC
SymbolFIELD
SymbolIMPORT
SymbolMETHOD
SymbolMODULE
SymbolVAR
)
func NewRootSymbol(name string, typ SymbolType) *Symbol {
return &Symbol{
Parts: []string{name},
Type: typ,
}
}
func NewChildSymbol(name string, typ SymbolType, parent *Symbol) *Symbol {
return &Symbol{
Parts: append(slices.Clone(parent.Parts), name),
Type: typ,
}
}
func (sym *Symbol) Scope() string {
n := len(sym.Parts)
if n < 2 {
return ""
}
return strings.Join(sym.Parts[:n-1], ".")
}
func (sym *Symbol) Name() string {
return sym.Parts[len(sym.Parts)-1]
}
func (sym *Symbol) ScopedName() string {
return strings.Join(sym.Parts, ".")
}