func (this *Token) HashCode() int {
if this.hash == 0 {
result := tk.HashType(tk.HASH_SEED, this)
result = tk.HashString(result, this.Operator)
result = tk.HashString(result, this.Alias)
result = tk.Hash(result, this.Members)
this.hash = result
}
return this.hash
}
func (this *Column) HashCode() int {
if this.hash == 0 {
result := tk.HashType(tk.HASH_SEED, this)
result = tk.HashString(result, this.table.String()+"."+this.name)
this.hash = result
}
return this.hash
}
func (this Str) HashCode() int {
return tk.HashString(tk.HASH_SEED, string(this))
}