}
			stack = stack[:len(stack)-1]
		}
		i++
	}
}

// traverse builds the table of events representing a traversal.
func traverse(files []*ast.File) []event {
	// Preallocate approximate number of events
	// based on source file extent.
	// This makes traverse faster by 4x (!).
	var extent int
	for _, f := range files {
		extent += int(f.End() - f.Pos())
	}

			// ingest these resize events.
			return
		}
	}
}

// createChannels returns the standard channel types for a shell connection (STDIN 0, STDOUT 1, STDERR 2)
// along with the approximate duplex value. It also creates the error (3) and resize (4) channels.
func createChannels(opts Options) []wsstream.ChannelType {
	// open the requested channels, and always open the error channel

//               = 2s + 2/3 s**3 + 2/5 s**5 + .....,
//               = 2s + s*R
//      We use a special Reme algorithm on [0,0.1716] to generate
//      a polynomial of degree 14 to approximate R The maximum error
//      of this polynomial approximation is bounded by 2**-58.45. In
//      other words,
//                      2      4      6      8      10      12      14

      }
    }

    // Optimization - use signed division if dividend < 2^63
    if (dividend >= 0) {
      return dividend / divisor;
    }

    /*
     * Otherwise, approximate the quotient, check, and correct if necessary. Our approximation is
     * guaranteed to be either exact or one less than the correct value. This follows from fact that

		math.MaxInt64. This value is set by the GOMEMLIMIT environment
		variable, and the runtime/debug.SetMemoryLimit function.

	/gc/heap/allocs-by-size:bytes
		Distribution of heap allocations by approximate size.
		Bucket counts increase monotonically. Note that this does not
		include tiny objects as defined by /gc/heap/tiny/allocs:objects,
		only tiny blocks.

	/gc/heap/allocs:bytes

 * <i>can</i> be subtracted to obtain a {@code Duration} (such as by {@code Duration.between}), but
 * doing so does <i>not</i> give a reliable measurement of elapsed time, because wall time readings
 * are inherently approximate, routinely affected by periodic clock corrections. Because this class
 * (by default) uses {@link System#nanoTime}, it is unaffected by these changes.
 *

			if n.Lhs != nil {
				m = n.Lhs
				continue
			}
			m = n.X
		// case *CaseClause:
		// case *CommClause:

		default:
			return n.Pos()
		}
	}
}

// EndPos returns the approximate end position of n in the source.
// For some nodes (*Name, *BasicLit) it returns the position immediately
// following the node; for others (*BlockStmt, *SwitchStmt, etc.) it

		// (b) do specify field selector with the value equal to the value
		//     coming from the processed object
		//
		// TODO(wojtek-t): For the sake of making progress and initially
		// simplifying the implementation, we approximate (b) for all values
		// as the value for an empty string. The assumption we're making here
		// is that the difference between the actual number of watchers that
		// will be processed, i.e. (a)+(b) above and the one from our

  If the disclaimer of warranty and limitation of liability provided
above cannot be given local legal effect according to their terms,
reviewing courts shall apply local law that most closely approximates
an absolute waiver of all civil liability in connection with the
Program, unless a warranty or assumption of liability accompanies a
copy of the Program in return for a fee.

  // For discussion of <? extends Object>, see getAllPresent.
  void invalidateAll(Iterable<? extends Object> keys);

  /** Discards all entries in the cache. */
  void invalidateAll();

  /** Returns the approximate number of entries in this cache. */
  long size();

  /**
   * Returns a current snapshot of this cache's cumulative statistics, or a set of default values if