Method start

package/svelte/compiler.js:77–88

(label)

      this.current_children = this.timings = [];
    }
    start(label) {
      const timing = {
        label,
        start: now(),
        end: null,
        children: []
      };
      this.current_children.push(timing);
      this.stack.push(timing);
      this.current_timing = timing;
      this.current_children = timing.children;
    }
    stop(label) {
      if (label !== this.current_timing.label) {
        throw new Error(`Mismatched timing labels (expected ${this.current_timing.label}, got ${label})`);