blob: ff401fe8a32e6086b6caa3fb5e02af6c0db3329d (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
|
// Copyright 2015 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import { GraphNode } from "../phases/graph-phase/graph-node";
export class SelectionMap {
selection: Map<string, any>;
stringKey: (obj: any) => string;
originStringKey: (node: GraphNode) => string;
constructor(stringKeyFnc, originStringKeyFnc?) {
this.selection = new Map<string, any>();
this.stringKey = stringKeyFnc;
this.originStringKey = originStringKeyFnc;
}
public isEmpty(): boolean {
return this.selection.size == 0;
}
public clear(): void {
this.selection = new Map<string, any>();
}
public select(items: Iterable<any>, isSelected?: boolean): void {
for (const item of items) {
if (item === undefined) continue;
if (isSelected === undefined) {
isSelected = !this.selection.has(this.stringKey(item));
}
if (isSelected) {
this.selection.set(this.stringKey(item), item);
} else {
this.selection.delete(this.stringKey(item));
}
}
}
public isSelected(obj: any): boolean {
return this.selection.has(this.stringKey(obj));
}
public isKeySelected(key: string): boolean {
return this.selection.has(key);
}
public selectedKeys(): Set<string> {
const result = new Set<string>();
for (const key of this.selection.keys()) {
result.add(key);
}
return result;
}
public detachSelection(): Map<string, any> {
const result = this.selection;
this.clear();
return result;
}
[Symbol.iterator]() { return this.selection.values(); }
}
|
