117 lines
2.4 KiB
Go
117 lines
2.4 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) parseDefineRulesStatement() (stmt *DefineRulesStatement, err error) {
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stmt = &DefineRulesStatement{}
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stmt.KV = p.c.Get("KV").(string)
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stmt.NS = p.c.Get("NS").(string)
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stmt.DB = p.c.Get("DB").(string)
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if _, _, err = p.shouldBe(ON); err != nil {
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return nil, err
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}
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if stmt.What, err = p.parseNames(); err != nil {
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return nil, err
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}
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if _, _, err = p.shouldBe(FOR); err != nil {
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return nil, err
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}
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for {
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tok, _, exi := p.mightBe(SELECT, CREATE, UPDATE, DELETE, RELATE)
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if !exi {
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break
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}
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stmt.When = append(stmt.When, tok.String())
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if _, _, exi := p.mightBe(COMMA); !exi {
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break
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}
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}
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if len(stmt.When) == 0 {
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return nil, &ParseError{Found: "", Expected: []string{"SELECT", "CREATE", "UPDATE", "DELETE", "RELATE"}}
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}
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if _, stmt.Rule, err = p.shouldBe(ACCEPT, REJECT); err != nil {
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return nil, err
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}
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if stmt.Cond, err = p.parseCond(); err != nil {
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return nil, err
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}
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if _, _, err = p.shouldBe(EOF, SEMICOLON); 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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func (p *parser) parseRemoveRulesStatement() (stmt *RemoveRulesStatement, err error) {
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stmt = &RemoveRulesStatement{}
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stmt.KV = p.c.Get("KV").(string)
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stmt.NS = p.c.Get("NS").(string)
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stmt.DB = p.c.Get("DB").(string)
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if _, _, err = p.shouldBe(ON); err != nil {
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return nil, err
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}
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if stmt.What, err = p.parseNames(); err != nil {
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return nil, err
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}
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if _, _, err = p.shouldBe(FOR); err != nil {
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return nil, err
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}
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for {
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tok, _, exi := p.mightBe(SELECT, CREATE, UPDATE, DELETE, RELATE)
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if !exi {
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break
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}
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stmt.When = append(stmt.When, tok.String())
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if _, _, exi := p.mightBe(COMMA); !exi {
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break
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}
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}
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if len(stmt.When) == 0 {
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return nil, &ParseError{Found: "", Expected: []string{"SELECT", "CREATE", "UPDATE", "DELETE", "RELATE"}}
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}
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if _, _, err = p.shouldBe(EOF, SEMICOLON); 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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