39 lines
1 KiB
Go
39 lines
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) parseDiff() (exp *DiffExpression, err error) {
|
|
|
|
if _, _, err = p.shouldBe(DIFF); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
exp = &DiffExpression{}
|
|
|
|
tok, lit, err := p.shouldBe(JSON)
|
|
if err != nil {
|
|
return nil, &ParseError{Found: lit, Expected: []string{"json"}}
|
|
}
|
|
|
|
val, err := declare(tok, lit)
|
|
if err != nil {
|
|
return nil, &ParseError{Found: lit, Expected: []string{"json"}}
|
|
}
|
|
|
|
exp.JSON = val.(*JSONLiteral)
|
|
|
|
return
|
|
|
|
}
|