83 lines
1.7 KiB
Go
83 lines
1.7 KiB
Go
// Copyright © 2016 Abcum Ltd
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package sql
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func (p *parser) parseRelateStatement() (stmt *RelateStatement, err error) {
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tok := ILLEGAL
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stmt = &RelateStatement{}
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if stmt.From, err = p.parseWhat(); err != nil {
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return nil, err
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}
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if tok, _, err = p.shouldBe(OEDGE, IEDGE); err != nil {
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return nil, err
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}
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if tok == OEDGE {
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stmt.From = stmt.From
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if stmt.Type, err = p.parseTable(); err != nil {
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return nil, err
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}
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if _, _, err = p.shouldBe(OEDGE); err != nil {
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return nil, err
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}
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if stmt.With, err = p.parseWhat(); err != nil {
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return nil, err
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}
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}
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if tok == IEDGE {
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stmt.With = stmt.From
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if stmt.Type, err = p.parseTable(); err != nil {
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return nil, err
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}
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if _, _, err = p.shouldBe(IEDGE); err != nil {
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return nil, err
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}
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if stmt.From, err = p.parseWhat(); err != nil {
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return nil, err
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}
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}
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_, _, stmt.Uniq = p.mightBe(UNIQUE)
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if stmt.Data, err = p.parseData(); err != nil {
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return nil, err
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}
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if stmt.Echo, err = p.parseEcho(AFTER); err != nil {
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return nil, err
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}
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if stmt.Timeout, err = p.parseTimeout(); err != nil {
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return nil, err
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}
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return
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}
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