Method addStack

deps/v8/tools/profview/profile-utils.js:340–395

(file, tickIndex)

  }

  addStack(file, tickIndex) {
    let stack = file.ticks[tickIndex].s;
    let vmState = file.ticks[tickIndex].vm;

    this.tree.ticks++;
    let child = null;
    let tree = null;
    for (let i = stack.length - 2; i >= 0; i -= 2) {
      let codeId = stack[i];
      if (codeId < 0 || this.codeVisited[codeId]) continue;

      let code = file.code[codeId];
      if (this.filter) {
        let type = code ? code.type : undefined;
        let kind = code ? code.kind : undefined;
        if (!this.filter(type, kind)) continue;
      }
      let childId = childIdFromCode(codeId, code);
      if (this.categories) {
        let kind = resolveCodeKindAndVmState(code, vmState);
        tree = this.categories[kind];
      } else {
        tree = this.tree;
      }
      child = tree.children[childId];
      if (!child) {
        child = createNodeFromStackEntry(code, codeId, vmState);
        child.children[0] = createEmptyNode("Top-down tree");
        child.children[0].delayedExpansion =
          { frameList : [], ascending : false };
        child.children[1] = createEmptyNode("Bottom-up tree");
        child.children[1].delayedExpansion =
          { frameList : [], ascending : true };
        tree.children[childId] = child;
      }
      child.ticks++;
      child.children[0].ticks++;
      addFrameToFrameList(
          child.children[0].delayedExpansion.frameList, tickIndex, i);
      child.children[1].ticks++;
      addFrameToFrameList(
          child.children[1].delayedExpansion.frameList, tickIndex, i);
      this.codeVisited[codeId] = true;
    }
    if (child) {
      child.ownTicks++;
      console.assert(tree !== null);
      tree.ticks++;
      console.assert(tree.type === "CAT");
    }

    for (let i = 0; i < stack.length; i += 2) {
      let codeId = stack[i];
      if (codeId >= 0) this.codeVisited[codeId] = false;
    }
  }
}