ascii.mjs
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import { compareRangeCovs } from "./compare";
export function emitForest(trees) {
return emitForestLines(trees).join("\n");
}
export function emitForestLines(trees) {
const colMap = getColMap(trees);
const header = emitOffsets(colMap);
return [header, ...trees.map(tree => emitTree(tree, colMap).join("\n"))];
}
function getColMap(trees) {
const eventSet = new Set();
for (const tree of trees) {
const stack = [tree];
while (stack.length > 0) {
const cur = stack.pop();
eventSet.add(cur.start);
eventSet.add(cur.end);
for (const child of cur.children) {
stack.push(child);
}
}
}
const events = [...eventSet];
events.sort((a, b) => a - b);
let maxDigits = 1;
for (const event of events) {
maxDigits = Math.max(maxDigits, event.toString(10).length);
}
const colWidth = maxDigits + 3;
const colMap = new Map();
for (const [i, event] of events.entries()) {
colMap.set(event, i * colWidth);
}
return colMap;
}
function emitTree(tree, colMap) {
const layers = [];
let nextLayer = [tree];
while (nextLayer.length > 0) {
const layer = nextLayer;
layers.push(layer);
nextLayer = [];
for (const node of layer) {
for (const child of node.children) {
nextLayer.push(child);
}
}
}
return layers.map(layer => emitTreeLayer(layer, colMap));
}
export function parseFunctionRanges(text, offsetMap) {
const result = [];
for (const line of text.split("\n")) {
for (const range of parseTreeLayer(line, offsetMap)) {
result.push(range);
}
}
result.sort(compareRangeCovs);
return result;
}
/**
*
* @param layer Sorted list of disjoint trees.
* @param colMap
*/
function emitTreeLayer(layer, colMap) {
const line = [];
let curIdx = 0;
for (const { start, end, count } of layer) {
const startIdx = colMap.get(start);
const endIdx = colMap.get(end);
if (startIdx > curIdx) {
line.push(" ".repeat(startIdx - curIdx));
}
line.push(emitRange(count, endIdx - startIdx));
curIdx = endIdx;
}
return line.join("");
}
function parseTreeLayer(text, offsetMap) {
const result = [];
const regex = /\[(\d+)-*\)/gs;
while (true) {
const match = regex.exec(text);
if (match === null) {
break;
}
const startIdx = match.index;
const endIdx = startIdx + match[0].length;
const count = parseInt(match[1], 10);
const startOffset = offsetMap.get(startIdx);
const endOffset = offsetMap.get(endIdx);
if (startOffset === undefined || endOffset === undefined) {
throw new Error(`Invalid offsets for: ${JSON.stringify(text)}`);
}
result.push({ startOffset, endOffset, count });
}
return result;
}
function emitRange(count, len) {
const rangeStart = `[${count.toString(10)}`;
const rangeEnd = ")";
const hyphensLen = len - (rangeStart.length + rangeEnd.length);
const hyphens = "-".repeat(Math.max(0, hyphensLen));
return `${rangeStart}${hyphens}${rangeEnd}`;
}
function emitOffsets(colMap) {
let line = "";
for (const [event, col] of colMap) {
if (line.length < col) {
line += " ".repeat(col - line.length);
}
line += event.toString(10);
}
return line;
}
export function parseOffsets(text) {
const result = new Map();
const regex = /\d+/gs;
while (true) {
const match = regex.exec(text);
if (match === null) {
break;
}
result.set(match.index, parseInt(match[0], 10));
}
return result;
}
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{ compareRangeCovs } from \"./compare\";\nimport { RangeCov } from \"./types\";\n\ninterface ReadonlyRangeTree {\n  readonly start: number;\n  readonly end: number;\n  readonly count: number;\n  readonly children: ReadonlyRangeTree[];\n}\n\nexport function emitForest(trees: ReadonlyArray<ReadonlyRangeTree>): string {\n  return emitForestLines(trees).join(\"\\n\");\n}\n\nexport function emitForestLines(trees: ReadonlyArray<ReadonlyRangeTree>): string[] {\n  const colMap: Map<number, number> = getColMap(trees);\n  const header: string = emitOffsets(colMap);\n  return [header, ...trees.map(tree => emitTree(tree, colMap).join(\"\\n\"))];\n}\n\nfunction getColMap(trees: Iterable<ReadonlyRangeTree>): Map<number, number> {\n  const eventSet: Set<number> = new Set();\n  for (const tree of trees) {\n    const stack: ReadonlyRangeTree[] = [tree];\n    while (stack.length > 0) {\n      const cur: ReadonlyRangeTree = stack.pop()!;\n      eventSet.add(cur.start);\n      eventSet.add(cur.end);\n      for (const child of cur.children) {\n        stack.push(child);\n      }\n    }\n  }\n  const events: number[] = [...eventSet];\n  events.sort((a, b) => a - b);\n  let maxDigits: number = 1;\n  for (const event of events) {\n    maxDigits = Math.max(maxDigits, event.toString(10).length);\n  }\n  const colWidth: number = maxDigits + 3;\n  const colMap: Map<number, number> = new Map();\n  for (const [i, event] of events.entries()) {\n    colMap.set(event, i * colWidth);\n  }\n  return colMap;\n}\n\nfunction emitTree(tree: ReadonlyRangeTree, colMap: Map<number, number>): string[] {\n  const layers: ReadonlyRangeTree[][] = [];\n  let nextLayer: ReadonlyRangeTree[] = [tree];\n  while (nextLayer.length > 0) {\n    const layer: ReadonlyRangeTree[] = nextLayer;\n    layers.push(layer);\n    nextLayer = [];\n    for (const node of layer) {\n      for (const child of node.children) {\n        nextLayer.push(child);\n      }\n    }\n  }\n  return layers.map(layer => emitTreeLayer(layer, colMap));\n}\n\nexport function parseFunctionRanges(text: string, offsetMap: Map<number, number>): RangeCov[] {\n  const result: RangeCov[] = [];\n  for (const line of text.split(\"\\n\")) {\n    for (const range of parseTreeLayer(line, offsetMap)) {\n      result.push(range);\n    }\n  }\n  result.sort(compareRangeCovs);\n  return result;\n}\n\n/**\n *\n * @param layer Sorted list of disjoint trees.\n * @param colMap\n */\nfunction emitTreeLayer(layer: ReadonlyRangeTree[], colMap: Map<number, number>): string {\n  const line: string[] = [];\n  let curIdx: number = 0;\n  for (const {start, end, count} of layer) {\n    const startIdx: number = colMap.get(start)!;\n    const endIdx: number = colMap.get(end)!;\n    if (startIdx > curIdx) {\n      line.push(\" \".repeat(startIdx - curIdx));\n    }\n    line.push(emitRange(count, endIdx - startIdx));\n    curIdx = endIdx;\n  }\n  return line.join(\"\");\n}\n\nfunction parseTreeLayer(text: string, offsetMap: Map<number, number>): RangeCov[] {\n  const result: RangeCov[] = [];\n  const regex: RegExp = /\\[(\\d+)-*\\)/gs;\n  while (true) {\n    const match: RegExpMatchArray | null = regex.exec(text);\n    if (match === null) {\n      break;\n    }\n    const startIdx: number = match.index!;\n    const endIdx: number = startIdx + match[0].length;\n    const count: number = parseInt(match[1], 10);\n    const startOffset: number | undefined = offsetMap.get(startIdx);\n    const endOffset: number | undefined = offsetMap.get(endIdx);\n    if (startOffset === undefined || endOffset === undefined) {\n      throw new Error(`Invalid offsets for: ${JSON.stringify(text)}`);\n    }\n    result.push({startOffset, endOffset, count});\n  }\n  return result;\n}\n\nfunction emitRange(count: number, len: number): string {\n  const rangeStart: string = `[${count.toString(10)}`;\n  const rangeEnd: string = \")\";\n  const hyphensLen: number = len - (rangeStart.length + rangeEnd.length);\n  const hyphens: string = \"-\".repeat(Math.max(0, hyphensLen));\n  return `${rangeStart}${hyphens}${rangeEnd}`;\n}\n\nfunction emitOffsets(colMap: Map<number, number>): string {\n  let line: string = \"\";\n  for (const [event, col] of colMap) {\n    if (line.length < col) {\n      line += \" \".repeat(col - line.length);\n    }\n    line += event.toString(10);\n  }\n  return line;\n}\n\nexport function parseOffsets(text: string): Map<number, number> {\n  const result: Map<number, number> = new Map();\n  const regex: RegExp = /\\d+/gs;\n  while (true) {\n    const match: RegExpExecArray | null = regex.exec(text);\n    if (match === null) {\n      break;\n    }\n    result.set(match.index, parseInt(match[0], 10));\n  }\n  return result;\n}\n"],"sourceRoot":""}