range-tree.mjs
15.5 KB
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
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
export class RangeTree {
constructor(start, end, delta, children) {
this.start = start;
this.end = end;
this.delta = delta;
this.children = children;
}
/**
* @precodition `ranges` are well-formed and pre-order sorted
*/
static fromSortedRanges(ranges) {
let root;
// Stack of parent trees and parent counts.
const stack = [];
for (const range of ranges) {
const node = new RangeTree(range.startOffset, range.endOffset, range.count, []);
if (root === undefined) {
root = node;
stack.push([node, range.count]);
continue;
}
let parent;
let parentCount;
while (true) {
[parent, parentCount] = stack[stack.length - 1];
// assert: `top !== undefined` (the ranges are sorted)
if (range.startOffset < parent.end) {
break;
}
else {
stack.pop();
}
}
node.delta -= parentCount;
parent.children.push(node);
stack.push([node, range.count]);
}
return root;
}
normalize() {
const children = [];
let curEnd;
let head;
const tail = [];
for (const child of this.children) {
if (head === undefined) {
head = child;
}
else if (child.delta === head.delta && child.start === curEnd) {
tail.push(child);
}
else {
endChain();
head = child;
}
curEnd = child.end;
}
if (head !== undefined) {
endChain();
}
if (children.length === 1) {
const child = children[0];
if (child.start === this.start && child.end === this.end) {
this.delta += child.delta;
this.children = child.children;
// `.lazyCount` is zero for both (both are after normalization)
return;
}
}
this.children = children;
function endChain() {
if (tail.length !== 0) {
head.end = tail[tail.length - 1].end;
for (const tailTree of tail) {
for (const subChild of tailTree.children) {
subChild.delta += tailTree.delta - head.delta;
head.children.push(subChild);
}
}
tail.length = 0;
}
head.normalize();
children.push(head);
}
}
/**
* @precondition `tree.start < value && value < tree.end`
* @return RangeTree Right part
*/
split(value) {
let leftChildLen = this.children.length;
let mid;
// TODO(perf): Binary search (check overhead)
for (let i = 0; i < this.children.length; i++) {
const child = this.children[i];
if (child.start < value && value < child.end) {
mid = child.split(value);
leftChildLen = i + 1;
break;
}
else if (child.start >= value) {
leftChildLen = i;
break;
}
}
const rightLen = this.children.length - leftChildLen;
const rightChildren = this.children.splice(leftChildLen, rightLen);
if (mid !== undefined) {
rightChildren.unshift(mid);
}
const result = new RangeTree(value, this.end, this.delta, rightChildren);
this.end = value;
return result;
}
/**
* Get the range coverages corresponding to the tree.
*
* The ranges are pre-order sorted.
*/
toRanges() {
const ranges = [];
// Stack of parent trees and counts.
const stack = [[this, 0]];
while (stack.length > 0) {
const [cur, parentCount] = stack.pop();
const count = parentCount + cur.delta;
ranges.push({ startOffset: cur.start, endOffset: cur.end, count });
for (let i = cur.children.length - 1; i >= 0; i--) {
stack.push([cur.children[i], count]);
}
}
return ranges;
}
}
//# sourceMappingURL=data:application/json;charset=utf8;base64,{"version":3,"sources":["_src/range-tree.ts"],"names":[],"mappings":"AAEA,MAAM,OAAO,SAAS;IAMpB,YACE,KAAa,EACb,GAAW,EACX,KAAa,EACb,QAAqB;QAErB,IAAI,CAAC,KAAK,GAAG,KAAK,CAAC;QACnB,IAAI,CAAC,GAAG,GAAG,GAAG,CAAC;QACf,IAAI,CAAC,KAAK,GAAG,KAAK,CAAC;QACnB,IAAI,CAAC,QAAQ,GAAG,QAAQ,CAAC;IAC3B,CAAC;IAED;;OAEG;IACH,MAAM,CAAC,gBAAgB,CAAC,MAA+B;QACrD,IAAI,IAA2B,CAAC;QAChC,2CAA2C;QAC3C,MAAM,KAAK,GAA0B,EAAE,CAAC;QACxC,KAAK,MAAM,KAAK,IAAI,MAAM,EAAE;YAC1B,MAAM,IAAI,GAAc,IAAI,SAAS,CAAC,KAAK,CAAC,WAAW,EAAE,KAAK,CAAC,SAAS,EAAE,KAAK,CAAC,KAAK,EAAE,EAAE,CAAC,CAAC;YAC3F,IAAI,IAAI,KAAK,SAAS,EAAE;gBACtB,IAAI,GAAG,IAAI,CAAC;gBACZ,KAAK,CAAC,IAAI,CAAC,CAAC,IAAI,EAAE,KAAK,CAAC,KAAK,CAAC,CAAC,CAAC;gBAChC,SAAS;aACV;YACD,IAAI,MAAiB,CAAC;YACtB,IAAI,WAAmB,CAAC;YACxB,OAAO,IAAI,EAAE;gBACX,CAAC,MAAM,EAAE,WAAW,CAAC,GAAG,KAAK,CAAC,KAAK,CAAC,MAAM,GAAG,CAAC,CAAC,CAAC;gBAChD,sDAAsD;gBACtD,IAAI,KAAK,CAAC,WAAW,GAAG,MAAM,CAAC,GAAG,EAAE;oBAClC,MAAM;iBACP;qBAAM;oBACL,KAAK,CAAC,GAAG,EAAE,CAAC;iBACb;aACF;YACD,IAAI,CAAC,KAAK,IAAI,WAAW,CAAC;YAC1B,MAAM,CAAC,QAAQ,CAAC,IAAI,CAAC,IAAI,CAAC,CAAC;YAC3B,KAAK,CAAC,IAAI,CAAC,CAAC,IAAI,EAAE,KAAK,CAAC,KAAK,CAAC,CAAC,CAAC;SACjC;QACD,OAAO,IAAI,CAAC;IACd,CAAC;IAED,SAAS;QACP,MAAM,QAAQ,GAAgB,EAAE,CAAC;QACjC,IAAI,MAAc,CAAC;QACnB,IAAI,IAA2B,CAAC;QAChC,MAAM,IAAI,GAAgB,EAAE,CAAC;QAC7B,KAAK,MAAM,KAAK,IAAI,IAAI,CAAC,QAAQ,EAAE;YACjC,IAAI,IAAI,KAAK,SAAS,EAAE;gBACtB,IAAI,GAAG,KAAK,CAAC;aACd;iBAAM,IAAI,KAAK,CAAC,KAAK,KAAK,IAAI,CAAC,KAAK,IAAI,KAAK,CAAC,KAAK,KAAK,MAAO,EAAE;gBAChE,IAAI,CAAC,IAAI,CAAC,KAAK,CAAC,CAAC;aAClB;iBAAM;gBACL,QAAQ,EAAE,CAAC;gBACX,IAAI,GAAG,KAAK,CAAC;aACd;YACD,MAAM,GAAG,KAAK,CAAC,GAAG,CAAC;SACpB;QACD,IAAI,IAAI,KAAK,SAAS,EAAE;YACtB,QAAQ,EAAE,CAAC;SACZ;QAED,IAAI,QAAQ,CAAC,MAAM,KAAK,CAAC,EAAE;YACzB,MAAM,KAAK,GAAc,QAAQ,CAAC,CAAC,CAAC,CAAC;YACrC,IAAI,KAAK,CAAC,KAAK,KAAK,IAAI,CAAC,KAAK,IAAI,KAAK,CAAC,GAAG,KAAK,IAAI,CAAC,GAAG,EAAE;gBACxD,IAAI,CAAC,KAAK,IAAI,KAAK,CAAC,KAAK,CAAC;gBAC1B,IAAI,CAAC,QAAQ,GAAG,KAAK,CAAC,QAAQ,CAAC;gBAC/B,+DAA+D;gBAC/D,OAAO;aACR;SACF;QAED,IAAI,CAAC,QAAQ,GAAG,QAAQ,CAAC;QAEzB,SAAS,QAAQ;YACf,IAAI,IAAI,CAAC,MAAM,KAAK,CAAC,EAAE;gBACrB,IAAK,CAAC,GAAG,GAAG,IAAI,CAAC,IAAI,CAAC,MAAM,GAAG,CAAC,CAAC,CAAC,GAAG,CAAC;gBACtC,KAAK,MAAM,QAAQ,IAAI,IAAI,EAAE;oBAC3B,KAAK,MAAM,QAAQ,IAAI,QAAQ,CAAC,QAAQ,EAAE;wBACxC,QAAQ,CAAC,KAAK,IAAI,QAAQ,CAAC,KAAK,GAAG,IAAK,CAAC,KAAK,CAAC;wBAC/C,IAAK,CAAC,QAAQ,CAAC,IAAI,CAAC,QAAQ,CAAC,CAAC;qBAC/B;iBACF;gBACD,IAAI,CAAC,MAAM,GAAG,CAAC,CAAC;aACjB;YACD,IAAK,CAAC,SAAS,EAAE,CAAC;YAClB,QAAQ,CAAC,IAAI,CAAC,IAAK,CAAC,CAAC;QACvB,CAAC;IACH,CAAC;IAED;;;OAGG;IACH,KAAK,CAAC,KAAa;QACjB,IAAI,YAAY,GAAW,IAAI,CAAC,QAAQ,CAAC,MAAM,CAAC;QAChD,IAAI,GAA0B,CAAC;QAE/B,6CAA6C;QAC7C,KAAK,IAAI,CAAC,GAAW,CAAC,EAAE,CAAC,GAAG,IAAI,CAAC,QAAQ,CAAC,MAAM,EAAE,CAAC,EAAE,EAAE;YACrD,MAAM,KAAK,GAAc,IAAI,CAAC,QAAQ,CAAC,CAAC,CAAC,CAAC;YAC1C,IAAI,KAAK,CAAC,KAAK,GAAG,KAAK,IAAI,KAAK,GAAG,KAAK,CAAC,GAAG,EAAE;gBAC5C,GAAG,GAAG,KAAK,CAAC,KAAK,CAAC,KAAK,CAAC,CAAC;gBACzB,YAAY,GAAG,CAAC,GAAG,CAAC,CAAC;gBACrB,MAAM;aACP;iBAAM,IAAI,KAAK,CAAC,KAAK,IAAI,KAAK,EAAE;gBAC/B,YAAY,GAAG,CAAC,CAAC;gBACjB,MAAM;aACP;SACF;QAED,MAAM,QAAQ,GAAW,IAAI,CAAC,QAAQ,CAAC,MAAM,GAAG,YAAY,CAAC;QAC7D,MAAM,aAAa,GAAgB,IAAI,CAAC,QAAQ,CAAC,MAAM,CAAC,YAAY,EAAE,QAAQ,CAAC,CAAC;QAChF,IAAI,GAAG,KAAK,SAAS,EAAE;YACrB,aAAa,CAAC,OAAO,CAAC,GAAG,CAAC,CAAC;SAC5B;QACD,MAAM,MAAM,GAAc,IAAI,SAAS,CACrC,KAAK,EACL,IAAI,CAAC,GAAG,EACR,IAAI,CAAC,KAAK,EACV,aAAa,CACd,CAAC;QACF,IAAI,CAAC,GAAG,GAAG,KAAK,CAAC;QACjB,OAAO,MAAM,CAAC;IAChB,CAAC;IAED;;;;OAIG;IACH,QAAQ;QACN,MAAM,MAAM,GAAe,EAAE,CAAC;QAC9B,oCAAoC;QACpC,MAAM,KAAK,GAA0B,CAAC,CAAC,IAAI,EAAE,CAAC,CAAC,CAAC,CAAC;QACjD,OAAO,KAAK,CAAC,MAAM,GAAG,CAAC,EAAE;YACvB,MAAM,CAAC,GAAG,EAAE,WAAW,CAAC,GAAwB,KAAK,CAAC,GAAG,EAAG,CAAC;YAC7D,MAAM,KAAK,GAAW,WAAW,GAAG,GAAG,CAAC,KAAK,CAAC;YAC9C,MAAM,CAAC,IAAI,CAAC,EAAC,WAAW,EAAE,GAAG,CAAC,KAAK,EAAE,SAAS,EAAE,GAAG,CAAC,GAAG,EAAE,KAAK,EAAC,CAAC,CAAC;YACjE,KAAK,IAAI,CAAC,GAAW,GAAG,CAAC,QAAQ,CAAC,MAAM,GAAG,CAAC,EAAE,CAAC,IAAI,CAAC,EAAE,CAAC,EAAE,EAAE;gBACzD,KAAK,CAAC,IAAI,CAAC,CAAC,GAAG,CAAC,QAAQ,CAAC,CAAC,CAAC,EAAE,KAAK,CAAC,CAAC,CAAC;aACtC;SACF;QACD,OAAO,MAAM,CAAC;IAChB,CAAC;CACF","file":"range-tree.js","sourcesContent":["import { RangeCov } from \"./types\";\n\nexport class RangeTree {\n  start: number;\n  end: number;\n  delta: number;\n  children: RangeTree[];\n\n  constructor(\n    start: number,\n    end: number,\n    delta: number,\n    children: RangeTree[],\n  ) {\n    this.start = start;\n    this.end = end;\n    this.delta = delta;\n    this.children = children;\n  }\n\n  /**\n   * @precodition `ranges` are well-formed and pre-order sorted\n   */\n  static fromSortedRanges(ranges: ReadonlyArray<RangeCov>): RangeTree | undefined {\n    let root: RangeTree | undefined;\n    // Stack of parent trees and parent counts.\n    const stack: [RangeTree, number][] = [];\n    for (const range of ranges) {\n      const node: RangeTree = new RangeTree(range.startOffset, range.endOffset, range.count, []);\n      if (root === undefined) {\n        root = node;\n        stack.push([node, range.count]);\n        continue;\n      }\n      let parent: RangeTree;\n      let parentCount: number;\n      while (true) {\n        [parent, parentCount] = stack[stack.length - 1];\n        // assert: `top !== undefined` (the ranges are sorted)\n        if (range.startOffset < parent.end) {\n          break;\n        } else {\n          stack.pop();\n        }\n      }\n      node.delta -= parentCount;\n      parent.children.push(node);\n      stack.push([node, range.count]);\n    }\n    return root;\n  }\n\n  normalize(): void {\n    const children: RangeTree[] = [];\n    let curEnd: number;\n    let head: RangeTree | undefined;\n    const tail: RangeTree[] = [];\n    for (const child of this.children) {\n      if (head === undefined) {\n        head = child;\n      } else if (child.delta === head.delta && child.start === curEnd!) {\n        tail.push(child);\n      } else {\n        endChain();\n        head = child;\n      }\n      curEnd = child.end;\n    }\n    if (head !== undefined) {\n      endChain();\n    }\n\n    if (children.length === 1) {\n      const child: RangeTree = children[0];\n      if (child.start === this.start && child.end === this.end) {\n        this.delta += child.delta;\n        this.children = child.children;\n        // `.lazyCount` is zero for both (both are after normalization)\n        return;\n      }\n    }\n\n    this.children = children;\n\n    function endChain(): void {\n      if (tail.length !== 0) {\n        head!.end = tail[tail.length - 1].end;\n        for (const tailTree of tail) {\n          for (const subChild of tailTree.children) {\n            subChild.delta += tailTree.delta - head!.delta;\n            head!.children.push(subChild);\n          }\n        }\n        tail.length = 0;\n      }\n      head!.normalize();\n      children.push(head!);\n    }\n  }\n\n  /**\n   * @precondition `tree.start < value && value < tree.end`\n   * @return RangeTree Right part\n   */\n  split(value: number): RangeTree {\n    let leftChildLen: number = this.children.length;\n    let mid: RangeTree | undefined;\n\n    // TODO(perf): Binary search (check overhead)\n    for (let i: number = 0; i < this.children.length; i++) {\n      const child: RangeTree = this.children[i];\n      if (child.start < value && value < child.end) {\n        mid = child.split(value);\n        leftChildLen = i + 1;\n        break;\n      } else if (child.start >= value) {\n        leftChildLen = i;\n        break;\n      }\n    }\n\n    const rightLen: number = this.children.length - leftChildLen;\n    const rightChildren: RangeTree[] = this.children.splice(leftChildLen, rightLen);\n    if (mid !== undefined) {\n      rightChildren.unshift(mid);\n    }\n    const result: RangeTree = new RangeTree(\n      value,\n      this.end,\n      this.delta,\n      rightChildren,\n    );\n    this.end = value;\n    return result;\n  }\n\n  /**\n   * Get the range coverages corresponding to the tree.\n   *\n   * The ranges are pre-order sorted.\n   */\n  toRanges(): RangeCov[] {\n    const ranges: RangeCov[] = [];\n    // Stack of parent trees and counts.\n    const stack: [RangeTree, number][] = [[this, 0]];\n    while (stack.length > 0) {\n      const [cur, parentCount]: [RangeTree, number] = stack.pop()!;\n      const count: number = parentCount + cur.delta;\n      ranges.push({startOffset: cur.start, endOffset: cur.end, count});\n      for (let i: number = cur.children.length - 1; i >= 0; i--) {\n        stack.push([cur.children[i], count]);\n      }\n    }\n    return ranges;\n  }\n}\n"],"sourceRoot":""}