superbobry

struct chromNameCallbackContext
/* Some stuff that the bPlusTree traverser needs for context. */
    {
    struct bbiChromInfo *list;		/* The list we are building. */
    boolean isSwapped;			/* Need to byte-swap things? */
    };

static void chromNameCallback(void *context, void *key, int keySize, void *val, int valSize)
/* Callback that captures chromInfo from bPlusTree. */
{

superbobry

Хочу ещё раз на примере декоратора trace пояснить, какие типы декораторов используются на практике и как они работают.

Декораторы без аргументов

Общая структура декоратора и пример использования:

def trace(func):
 def inner(*args, **kwargs):

superbobry

import time

from matplotlib import pyplot as plt


def timed(f, args, *, n_iter=100):
    acc = float("inf")
    for i in range(n_iter):
        t0 = time.perf_counter()
        f(*args)

superbobry

TDF

TDF is a binary format developed by the IGV team at Broad Institute.

Overview

Concepts

superbobry

import scala.{specialized => spec}

package object foo {
  class ImplicitTest(val n: Nothing) extends AnyVal {
    def foo[@spec(Double) T](size: Int)(f: Int => T): Array[T] = {
      f(42)
      ???
    }
  }
}

superbobry

>>> Error(abc.ABC, Exception): pass
...
>>> EndOfTheWorld(Exception): pass
...
>>> Error.register(EndOfTheWorld)
<class '__main__.EndOfTheWorld'>
>>> e = EndOfTheWorld()
>>> isintance(e, Error)
True
>>> try:

superbobry

>>> class A:
...    def __init__(self, __foo):
...        print(__foo)
...
>>> dis.dis(A.__init__)
  3           0 LOAD_GLOBAL              0 (print)
              2 LOAD_FAST                1 (_A__foo)
              4 CALL_FUNCTION            1
              6 POP_TOP
              8 LOAD_CONST               0 (None)