hunt.sql.ast.expr.SQLArrayExpr source code

1 /*
2  * Copyright 2015-2018 HuntLabs.cn
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 module hunt.sql.ast.expr.SQLArrayExpr;
17 
18 
19 
20 import hunt.sql.ast.SQLExpr;
21 import hunt.sql.ast.SQLExprImpl;
22 import hunt.sql.ast.SQLObject;
23 import hunt.sql.visitor.SQLASTVisitor;
24 import hunt.collection;
25 
26 public class SQLArrayExpr : SQLExprImpl {
27 
28     private SQLExpr       expr;
29 
30     private List!SQLExpr values;
31 
32     this()
33     {
34         values = new ArrayList!SQLExpr();
35     }
36 
37     override public SQLArrayExpr clone() {
38         SQLArrayExpr x = new SQLArrayExpr();
39         if (expr !is null) {
40             x.setExpr(expr.clone());
41         }
42         foreach (SQLExpr value ; values) {
43             SQLExpr value2 = value.clone();
44             value2.setParent(x);
45             x.values.add(value2);
46         }
47         return x;
48     }
49 
50     public SQLExpr getExpr() {
51         return expr;
52     }
53 
54     public void setExpr(SQLExpr expr) {
55         this.expr = expr;
56     }
57 
58     public List!SQLExpr getValues() {
59         return values;
60     }
61 
62     public void setValues(List!SQLExpr values) {
63         this.values = values;
64     }
65 
66     override  protected void accept0(SQLASTVisitor visitor) {
67         if (visitor.visit(this)) {
68             acceptChild(visitor, expr);
69             acceptChild!SQLExpr(visitor, values);
70         }
71         visitor.endVisit(this);
72     }
73 
74     override public List!SQLObject getChildren() {
75         List!SQLObject children = new ArrayList!SQLObject();
76         children.add(this.expr);
77         children.addAll(cast(List!SQLObject)(this.values));
78         return children;
79     }
80 
81    override
82     public size_t toHash() @trusted nothrow {
83          int prime = 31;
84         size_t result = 1;
85         result = prime * result + ((expr is null) ? 0 : (cast(Object)expr).toHash());
86         result = prime * result + ((values is null) ? 0 : (cast(Object)values).toHash());
87         return result;
88     }
89 
90    override
91     public bool opEquals(Object obj) {
92         if (this is obj) return true;
93         if (obj is null) return false;
94         if (typeid(this) != typeid(obj)) return false;
95         SQLArrayExpr other = cast(SQLArrayExpr) obj;
96         if (expr is null) {
97             if (other.expr !is null) return false;
98         } else if (!(cast(Object)expr).opEquals(cast(Object)(other.expr))) return false;
99         if (values is null) {
100             if (other.values !is null) return false;
101         } else if (!(cast(Object)values).opEquals(cast(Object)(other.values))) return false;
102         return true;
103     }
104 
105 
106 
107 }