surrealpatch/sql/table.go
2019-01-31 12:38:23 +00:00

114 lines
2.1 KiB
Go

// Copyright © 2016 Abcum Ltd
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package sql
func (p *parser) parseDefineTableStatement() (stmt *DefineTableStatement, err error) {
stmt = &DefineTableStatement{}
if stmt.What, err = p.parseTables(); err != nil {
return nil, err
}
for {
tok, _, exi := p.mightBe(DROP, SCHEMAFULL, SCHEMALESS, VERSIONED, UNVERSIONED, PERMISSIONS, AS)
if !exi {
break
}
if is(tok, DROP) {
stmt.Drop = true
}
if is(tok, SCHEMAFULL) {
stmt.Full = true
}
if is(tok, SCHEMALESS) {
stmt.Full = false
}
if is(tok, VERSIONED) {
stmt.Vers = true
}
if is(tok, UNVERSIONED) {
stmt.Vers = false
}
if is(tok, PERMISSIONS) {
if stmt.Perms, err = p.parsePerms(); err != nil {
return nil, err
}
}
if is(tok, AS) {
stmt.Lock = true
_, _, _ = p.mightBe(LPAREN)
_, _, err = p.shouldBe(SELECT)
if err != nil {
return nil, err
}
if stmt.Expr, err = p.parseFields(); err != nil {
return nil, err
}
_, _, err = p.shouldBe(FROM)
if err != nil {
return nil, err
}
if stmt.From, err = p.parseTables(); err != nil {
return nil, err
}
if stmt.Cond, err = p.parseCond(); err != nil {
return nil, err
}
if stmt.Group, err = p.parseGroup(); err != nil {
return nil, err
}
_, _, _ = p.mightBe(RPAREN)
if err = checkExpression(rolls, stmt.Expr, stmt.Group); err != nil {
return nil, err
}
}
}
return
}
func (p *parser) parseRemoveTableStatement() (stmt *RemoveTableStatement, err error) {
stmt = &RemoveTableStatement{}
if stmt.What, err = p.parseTables(); err != nil {
return nil, err
}
return
}