"use strict"; Object.defineProperty(exports, "__esModule", { value: true }); const normalize_1 = require("./normalize"); const range_tree_1 = require("./range-tree"); /** * Merges a list of process coverages. * * The result is normalized. * The input values may be mutated, it is not safe to use them after passing * them to this function. * The computation is synchronous. * * @param processCovs Process coverages to merge. * @return Merged process coverage. */ function mergeProcessCovs(processCovs) { if (processCovs.length === 0) { return { result: [] }; } const urlToScripts = new Map(); for (const processCov of processCovs) { for (const scriptCov of processCov.result) { let scriptCovs = urlToScripts.get(scriptCov.url); if (scriptCovs === undefined) { scriptCovs = []; urlToScripts.set(scriptCov.url, scriptCovs); } scriptCovs.push(scriptCov); } } const result = []; for (const scripts of urlToScripts.values()) { // assert: `scripts.length > 0` result.push(mergeScriptCovs(scripts)); } const merged = { result }; normalize_1.normalizeProcessCov(merged); return merged; } exports.mergeProcessCovs = mergeProcessCovs; /** * Merges a list of matching script coverages. * * Scripts are matching if they have the same `url`. * The result is normalized. * The input values may be mutated, it is not safe to use them after passing * them to this function. * The computation is synchronous. * * @param scriptCovs Process coverages to merge. * @return Merged script coverage, or `undefined` if the input list was empty. */ function mergeScriptCovs(scriptCovs) { if (scriptCovs.length === 0) { return undefined; } else if (scriptCovs.length === 1) { const merged = scriptCovs[0]; normalize_1.deepNormalizeScriptCov(merged); return merged; } const first = scriptCovs[0]; const scriptId = first.scriptId; const url = first.url; const rangeToFuncs = new Map(); for (const scriptCov of scriptCovs) { for (const funcCov of scriptCov.functions) { const rootRange = stringifyFunctionRootRange(funcCov); let funcCovs = rangeToFuncs.get(rootRange); if (funcCovs === undefined || // if the entry in rangeToFuncs is function-level granularity and // the new coverage is block-level, prefer block-level. (!funcCovs[0].isBlockCoverage && funcCov.isBlockCoverage)) { funcCovs = []; rangeToFuncs.set(rootRange, funcCovs); } else if (funcCovs[0].isBlockCoverage && !funcCov.isBlockCoverage) { // if the entry in rangeToFuncs is block-level granularity, we should // not append function level granularity. continue; } funcCovs.push(funcCov); } } const functions = []; for (const funcCovs of rangeToFuncs.values()) { // assert: `funcCovs.length > 0` functions.push(mergeFunctionCovs(funcCovs)); } const merged = { scriptId, url, functions }; normalize_1.normalizeScriptCov(merged); return merged; } exports.mergeScriptCovs = mergeScriptCovs; /** * Returns a string representation of the root range of the function. * * This string can be used to match function with same root range. * The string is derived from the start and end offsets of the root range of * the function. * This assumes that `ranges` is non-empty (true for valid function coverages). * * @param funcCov Function coverage with the range to stringify * @internal */ function stringifyFunctionRootRange(funcCov) { const rootRange = funcCov.ranges[0]; return `${rootRange.startOffset.toString(10)};${rootRange.endOffset.toString(10)}`; } /** * Merges a list of matching function coverages. * * Functions are matching if their root ranges have the same span. * The result is normalized. * The input values may be mutated, it is not safe to use them after passing * them to this function. * The computation is synchronous. * * @param funcCovs Function coverages to merge. * @return Merged function coverage, or `undefined` if the input list was empty. */ function mergeFunctionCovs(funcCovs) { if (funcCovs.length === 0) { return undefined; } else if (funcCovs.length === 1) { const merged = funcCovs[0]; normalize_1.normalizeFunctionCov(merged); return merged; } const functionName = funcCovs[0].functionName; const trees = []; for (const funcCov of funcCovs) { // assert: `fn.ranges.length > 0` // assert: `fn.ranges` is sorted trees.push(range_tree_1.RangeTree.fromSortedRanges(funcCov.ranges)); } // assert: `trees.length > 0` const mergedTree = mergeRangeTrees(trees); normalize_1.normalizeRangeTree(mergedTree); const ranges = mergedTree.toRanges(); const isBlockCoverage = !(ranges.length === 1 && ranges[0].count === 0); const merged = { functionName, ranges, isBlockCoverage }; // assert: `merged` is normalized return merged; } exports.mergeFunctionCovs = mergeFunctionCovs; /** * @precondition Same `start` and `end` for all the trees */ function mergeRangeTrees(trees) { if (trees.length <= 1) { return trees[0]; } const first = trees[0]; let delta = 0; for (const tree of trees) { delta += tree.delta; } const children = mergeRangeTreeChildren(trees); return new range_tree_1.RangeTree(first.start, first.end, delta, children); } class RangeTreeWithParent { constructor(parentIndex, tree) { this.parentIndex = parentIndex; this.tree = tree; } } class StartEvent { constructor(offset, trees) { this.offset = offset; this.trees = trees; } static compare(a, b) { return a.offset - b.offset; } } class StartEventQueue { constructor(queue) { this.queue = queue; this.nextIndex = 0; this.pendingOffset = 0; this.pendingTrees = undefined; } static fromParentTrees(parentTrees) { const startToTrees = new Map(); for (const [parentIndex, parentTree] of parentTrees.entries()) { for (const child of parentTree.children) { let trees = startToTrees.get(child.start); if (trees === undefined) { trees = []; startToTrees.set(child.start, trees); } trees.push(new RangeTreeWithParent(parentIndex, child)); } } const queue = []; for (const [startOffset, trees] of startToTrees) { queue.push(new StartEvent(startOffset, trees)); } queue.sort(StartEvent.compare); return new StartEventQueue(queue); } setPendingOffset(offset) { this.pendingOffset = offset; } pushPendingTree(tree) { if (this.pendingTrees === undefined) { this.pendingTrees = []; } this.pendingTrees.push(tree); } next() { const pendingTrees = this.pendingTrees; const nextEvent = this.queue[this.nextIndex]; if (pendingTrees === undefined) { this.nextIndex++; return nextEvent; } else if (nextEvent === undefined) { this.pendingTrees = undefined; return new StartEvent(this.pendingOffset, pendingTrees); } else { if (this.pendingOffset < nextEvent.offset) { this.pendingTrees = undefined; return new StartEvent(this.pendingOffset, pendingTrees); } else { if (this.pendingOffset === nextEvent.offset) { this.pendingTrees = undefined; for (const tree of pendingTrees) { nextEvent.trees.push(tree); } } this.nextIndex++; return nextEvent; } } } } function mergeRangeTreeChildren(parentTrees) { const result = []; const startEventQueue = StartEventQueue.fromParentTrees(parentTrees); const parentToNested = new Map(); let openRange; while (true) { const event = startEventQueue.next(); if (event === undefined) { break; } if (openRange !== undefined && openRange.end <= event.offset) { result.push(nextChild(openRange, parentToNested)); openRange = undefined; } if (openRange === undefined) { let openRangeEnd = event.offset + 1; for (const { parentIndex, tree } of event.trees) { openRangeEnd = Math.max(openRangeEnd, tree.end); insertChild(parentToNested, parentIndex, tree); } startEventQueue.setPendingOffset(openRangeEnd); openRange = { start: event.offset, end: openRangeEnd }; } else { for (const { parentIndex, tree } of event.trees) { if (tree.end > openRange.end) { const right = tree.split(openRange.end); startEventQueue.pushPendingTree(new RangeTreeWithParent(parentIndex, right)); } insertChild(parentToNested, parentIndex, tree); } } } if (openRange !== undefined) { result.push(nextChild(openRange, parentToNested)); } return result; } function insertChild(parentToNested, parentIndex, tree) { let nested = parentToNested.get(parentIndex); if (nested === undefined) { nested = []; parentToNested.set(parentIndex, nested); } nested.push(tree); } function nextChild(openRange, parentToNested) { const matchingTrees = []; for (const nested of parentToNested.values()) { if (nested.length === 1 && nested[0].start === openRange.start && nested[0].end === openRange.end) { matchingTrees.push(nested[0]); } else { matchingTrees.push(new range_tree_1.RangeTree(openRange.start, openRange.end, 0, nested)); } } parentToNested.clear(); return mergeRangeTrees(matchingTrees); } //# 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{\n  deepNormalizeScriptCov,\n  normalizeFunctionCov,\n  normalizeProcessCov,\n  normalizeRangeTree,\n  normalizeScriptCov,\n} from \"./normalize\";\nimport { RangeTree } from \"./range-tree\";\nimport { FunctionCov, ProcessCov, Range, RangeCov, ScriptCov } from \"./types\";\n\n/**\n * Merges a list of process coverages.\n *\n * The result is normalized.\n * The input values may be mutated, it is not safe to use them after passing\n * them to this function.\n * The computation is synchronous.\n *\n * @param processCovs Process coverages to merge.\n * @return Merged process coverage.\n */\nexport function mergeProcessCovs(processCovs: ReadonlyArray<ProcessCov>): ProcessCov {\n  if (processCovs.length === 0) {\n    return {result: []};\n  }\n\n  const urlToScripts: Map<string, ScriptCov[]> = new Map();\n  for (const processCov of processCovs) {\n    for (const scriptCov of processCov.result) {\n      let scriptCovs: ScriptCov[] | undefined = urlToScripts.get(scriptCov.url);\n      if (scriptCovs === undefined) {\n        scriptCovs = [];\n        urlToScripts.set(scriptCov.url, scriptCovs);\n      }\n      scriptCovs.push(scriptCov);\n    }\n  }\n\n  const result: ScriptCov[] = [];\n  for (const scripts of urlToScripts.values()) {\n    // assert: `scripts.length > 0`\n    result.push(mergeScriptCovs(scripts)!);\n  }\n  const merged: ProcessCov = {result};\n\n  normalizeProcessCov(merged);\n  return merged;\n}\n\n/**\n * Merges a list of matching script coverages.\n *\n * Scripts are matching if they have the same `url`.\n * The result is normalized.\n * The input values may be mutated, it is not safe to use them after passing\n * them to this function.\n * The computation is synchronous.\n *\n * @param scriptCovs Process coverages to merge.\n * @return Merged script coverage, or `undefined` if the input list was empty.\n */\nexport function mergeScriptCovs(scriptCovs: ReadonlyArray<ScriptCov>): ScriptCov | undefined {\n  if (scriptCovs.length === 0) {\n    return undefined;\n  } else if (scriptCovs.length === 1) {\n    const merged: ScriptCov = scriptCovs[0];\n    deepNormalizeScriptCov(merged);\n    return merged;\n  }\n\n  const first: ScriptCov = scriptCovs[0];\n  const scriptId: string = first.scriptId;\n  const url: string = first.url;\n\n  const rangeToFuncs: Map<string, FunctionCov[]> = new Map();\n  for (const scriptCov of scriptCovs) {\n    for (const funcCov of scriptCov.functions) {\n      const rootRange: string = stringifyFunctionRootRange(funcCov);\n      let funcCovs: FunctionCov[] | undefined = rangeToFuncs.get(rootRange);\n\n      if (funcCovs === undefined ||\n        // if the entry in rangeToFuncs is function-level granularity and\n        // the new coverage is block-level, prefer block-level.\n        (!funcCovs[0].isBlockCoverage && funcCov.isBlockCoverage)) {\n        funcCovs = [];\n        rangeToFuncs.set(rootRange, funcCovs);\n      } else if (funcCovs[0].isBlockCoverage && !funcCov.isBlockCoverage) {\n        // if the entry in rangeToFuncs is block-level granularity, we should\n        // not append function level granularity.\n        continue;\n      }\n      funcCovs.push(funcCov);\n    }\n  }\n\n  const functions: FunctionCov[] = [];\n  for (const funcCovs of rangeToFuncs.values()) {\n    // assert: `funcCovs.length > 0`\n    functions.push(mergeFunctionCovs(funcCovs)!);\n  }\n\n  const merged: ScriptCov = {scriptId, url, functions};\n  normalizeScriptCov(merged);\n  return merged;\n}\n\n/**\n * Returns a string representation of the root range of the function.\n *\n * This string can be used to match function with same root range.\n * The string is derived from the start and end offsets of the root range of\n * the function.\n * This assumes that `ranges` is non-empty (true for valid function coverages).\n *\n * @param funcCov Function coverage with the range to stringify\n * @internal\n */\nfunction stringifyFunctionRootRange(funcCov: Readonly<FunctionCov>): string {\n  const rootRange: RangeCov = funcCov.ranges[0];\n  return `${rootRange.startOffset.toString(10)};${rootRange.endOffset.toString(10)}`;\n}\n\n/**\n * Merges a list of matching function coverages.\n *\n * Functions are matching if their root ranges have the same span.\n * The result is normalized.\n * The input values may be mutated, it is not safe to use them after passing\n * them to this function.\n * The computation is synchronous.\n *\n * @param funcCovs Function coverages to merge.\n * @return Merged function coverage, or `undefined` if the input list was empty.\n */\nexport function mergeFunctionCovs(funcCovs: ReadonlyArray<FunctionCov>): FunctionCov | undefined {\n  if (funcCovs.length === 0) {\n    return undefined;\n  } else if (funcCovs.length === 1) {\n    const merged: FunctionCov = funcCovs[0];\n    normalizeFunctionCov(merged);\n    return merged;\n  }\n\n  const functionName: string = funcCovs[0].functionName;\n\n  const trees: RangeTree[] = [];\n  for (const funcCov of funcCovs) {\n    // assert: `fn.ranges.length > 0`\n    // assert: `fn.ranges` is sorted\n    trees.push(RangeTree.fromSortedRanges(funcCov.ranges)!);\n  }\n\n  // assert: `trees.length > 0`\n  const mergedTree: RangeTree = mergeRangeTrees(trees)!;\n  normalizeRangeTree(mergedTree);\n  const ranges: RangeCov[] = mergedTree.toRanges();\n  const isBlockCoverage: boolean = !(ranges.length === 1 && ranges[0].count === 0);\n\n  const merged: FunctionCov = {functionName, ranges, isBlockCoverage};\n  // assert: `merged` is normalized\n  return merged;\n}\n\n/**\n * @precondition Same `start` and `end` for all the trees\n */\nfunction mergeRangeTrees(trees: ReadonlyArray<RangeTree>): RangeTree | undefined {\n  if (trees.length <= 1) {\n    return trees[0];\n  }\n  const first: RangeTree = trees[0];\n  let delta: number = 0;\n  for (const tree of trees) {\n    delta += tree.delta;\n  }\n  const children: RangeTree[] = mergeRangeTreeChildren(trees);\n  return new RangeTree(first.start, first.end, delta, children);\n}\n\nclass RangeTreeWithParent {\n  readonly parentIndex: number;\n  readonly tree: RangeTree;\n\n  constructor(parentIndex: number, tree: RangeTree) {\n    this.parentIndex = parentIndex;\n    this.tree = tree;\n  }\n}\n\nclass StartEvent {\n  readonly offset: number;\n  readonly trees: RangeTreeWithParent[];\n\n  constructor(offset: number, trees: RangeTreeWithParent[]) {\n    this.offset = offset;\n    this.trees = trees;\n  }\n\n  static compare(a: StartEvent, b: StartEvent): number {\n    return a.offset - b.offset;\n  }\n}\n\nclass StartEventQueue {\n  private readonly queue: StartEvent[];\n  private nextIndex: number;\n  private pendingOffset: number;\n  private pendingTrees: RangeTreeWithParent[] | undefined;\n\n  private constructor(queue: StartEvent[]) {\n    this.queue = queue;\n    this.nextIndex = 0;\n    this.pendingOffset = 0;\n    this.pendingTrees = undefined;\n  }\n\n  static fromParentTrees(parentTrees: ReadonlyArray<RangeTree>): StartEventQueue {\n    const startToTrees: Map<number, RangeTreeWithParent[]> = new Map();\n    for (const [parentIndex, parentTree] of parentTrees.entries()) {\n      for (const child of parentTree.children) {\n        let trees: RangeTreeWithParent[] | undefined = startToTrees.get(child.start);\n        if (trees === undefined) {\n          trees = [];\n          startToTrees.set(child.start, trees);\n        }\n        trees.push(new RangeTreeWithParent(parentIndex, child));\n      }\n    }\n    const queue: StartEvent[] = [];\n    for (const [startOffset, trees] of startToTrees) {\n      queue.push(new StartEvent(startOffset, trees));\n    }\n    queue.sort(StartEvent.compare);\n    return new StartEventQueue(queue);\n  }\n\n  setPendingOffset(offset: number): void {\n    this.pendingOffset = offset;\n  }\n\n  pushPendingTree(tree: RangeTreeWithParent): void {\n    if (this.pendingTrees === undefined) {\n      this.pendingTrees = [];\n    }\n    this.pendingTrees.push(tree);\n  }\n\n  next(): StartEvent | undefined {\n    const pendingTrees: RangeTreeWithParent[] | undefined = this.pendingTrees;\n    const nextEvent: StartEvent | undefined = this.queue[this.nextIndex];\n    if (pendingTrees === undefined) {\n      this.nextIndex++;\n      return nextEvent;\n    } else if (nextEvent === undefined) {\n      this.pendingTrees = undefined;\n      return new StartEvent(this.pendingOffset, pendingTrees);\n    } else {\n      if (this.pendingOffset < nextEvent.offset) {\n        this.pendingTrees = undefined;\n        return new StartEvent(this.pendingOffset, pendingTrees);\n      } else {\n        if (this.pendingOffset === nextEvent.offset) {\n          this.pendingTrees = undefined;\n          for (const tree of pendingTrees) {\n            nextEvent.trees.push(tree);\n          }\n        }\n        this.nextIndex++;\n        return nextEvent;\n      }\n    }\n  }\n}\n\nfunction mergeRangeTreeChildren(parentTrees: ReadonlyArray<RangeTree>): RangeTree[] {\n  const result: RangeTree[] = [];\n  const startEventQueue: StartEventQueue = StartEventQueue.fromParentTrees(parentTrees);\n  const parentToNested: Map<number, RangeTree[]> = new Map();\n  let openRange: Range | undefined;\n\n  while (true) {\n    const event: StartEvent | undefined = startEventQueue.next();\n    if (event === undefined) {\n      break;\n    }\n\n    if (openRange !== undefined && openRange.end <= event.offset) {\n      result.push(nextChild(openRange, parentToNested));\n      openRange = undefined;\n    }\n\n    if (openRange === undefined) {\n      let openRangeEnd: number = event.offset + 1;\n      for (const {parentIndex, tree} of event.trees) {\n        openRangeEnd = Math.max(openRangeEnd, tree.end);\n        insertChild(parentToNested, parentIndex, tree);\n      }\n      startEventQueue.setPendingOffset(openRangeEnd);\n      openRange = {start: event.offset, end: openRangeEnd};\n    } else {\n      for (const {parentIndex, tree} of event.trees) {\n        if (tree.end > openRange.end) {\n          const right: RangeTree = tree.split(openRange.end);\n          startEventQueue.pushPendingTree(new RangeTreeWithParent(parentIndex, right));\n        }\n        insertChild(parentToNested, parentIndex, tree);\n      }\n    }\n  }\n  if (openRange !== undefined) {\n    result.push(nextChild(openRange, parentToNested));\n  }\n\n  return result;\n}\n\nfunction insertChild(parentToNested: Map<number, RangeTree[]>, parentIndex: number, tree: RangeTree): void {\n  let nested: RangeTree[] | undefined = parentToNested.get(parentIndex);\n  if (nested === undefined) {\n    nested = [];\n    parentToNested.set(parentIndex, nested);\n  }\n  nested.push(tree);\n}\n\nfunction nextChild(openRange: Range, parentToNested: Map<number, RangeTree[]>): RangeTree {\n  const matchingTrees: RangeTree[] = [];\n\n  for (const nested of parentToNested.values()) {\n    if (nested.length === 1 && nested[0].start === openRange.start && nested[0].end === openRange.end) {\n      matchingTrees.push(nested[0]);\n    } else {\n      matchingTrees.push(new RangeTree(\n        openRange.start,\n        openRange.end,\n        0,\n        nested,\n      ));\n    }\n  }\n  parentToNested.clear();\n  return mergeRangeTrees(matchingTrees)!;\n}\n"],"sourceRoot":""}