Golang Formalizer.Allowed Examples

Example #1

File: from_subquery.go Project: pkdevboxy/query

/*
Qualify all identifiers for the parent expression. Checks for
duplicate aliases.
*/
func (this *SubqueryTerm) Formalize(parent *expression.Formalizer) (f *expression.Formalizer, err error) {
	err = this.subquery.Formalize()
	if err != nil {
		return
	}

	alias := this.Alias()
	if alias == "" {
		err = errors.NewNoTermNameError("FROM", "plan.subquery.requires_name_or_alias")
		return
	}

	_, ok := parent.Allowed().Field(alias)
	if ok {
		err = errors.NewDuplicateAliasError("subquery", alias, "plan.subquery.duplicate_alias")
		return nil, err
	}

	f = expression.NewFormalizer(alias, parent)
	return
}

Example #2

File: from_keyspace.go Project: pkdevboxy/query

/*
Qualify all identifiers for the parent expression. Checks for
duplicate aliases.
*/
func (this *KeyspaceTerm) Formalize(parent *expression.Formalizer) (f *expression.Formalizer, err error) {
	keyspace := this.Alias()
	if keyspace == "" {
		err = errors.NewNoTermNameError("FROM", "plan.keyspace.requires_name_or_alias")
		return
	}

	f = expression.NewFormalizer("", parent)
	if this.keys != nil {
		_, err = this.keys.Accept(f)
		if err != nil {
			return
		}
	}

	_, ok := parent.Allowed().Field(keyspace)
	if ok {
		err = errors.NewDuplicateAliasError("subquery", keyspace, "plan.keyspace.duplicate_alias")
		return nil, err
	}

	f.SetKeyspace(keyspace)
	return
}