jschaf

A history of Go generics proposals

Go shipped generics in Go 1.18 (March 2022) after more than a decade of proposals. This is a timeline of each serious design, what it proposed, and why it was rejected. Syntax is taken from each design document at the commit it was published.

The umbrella issue is golang/go#15292. The accepted proposal is golang/go#43651.

jschaf

<!doctype html>
<html>
<head>
  <title>Example Domain</title>

  <meta charset="utf-8" />
  <meta http-equiv="Content-type" content="text/html; charset=utf-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1" />
  <style type="text/css">

jschaf

// Parses a platform-specific package name.
const supportedRegexp =
  /\b(darwin|linux|aix|android|freebsd|netbsd|openbsd|sunos|win32)-(arm64|x64|arm|ia32|loong64|mips64el|powerpc64|ppc64|riscv64|s390x)(?:-(gnu|eabi|musl|msvc|gnueabihf)\b)?(@[0-9.]+)?/;

const supportedPlatforms = new Set(['darwin-arm64', 'linux-x64', 'linux-arm64']);
const supportedABIs = new Set(['gnu']);

/**
 * Returns true if the package is supported. Useful to omit unneeded packages
 * since pnpm downloads optional dependencies.

jschaf

package main

import (
	"bytes"
	"flag"
	"fmt"
	"os"
	"slices"
)

jschaf

load("@bazel_skylib//rules:build_test.bzl", "build_test")
load("@rules_foreign_cc//tools/build_defs:configure.bzl", "configure_make")

"""An openssl build file based on a snippet found in the github issue:
https://github.com/bazelbuild/rules_foreign_cc/issues/337
"""

# Read https://wiki.openssl.org/index.php/Compilation_and_Installation

CONFIGURE_OPTIONS = [

jschaf

-- create_temporal_past_table creates a new table with the same structure
-- as the current table. Adds triggers to copy all changed or deleted rows
-- from the current table to the past table.
CREATE PROCEDURE admin.create_temporal_past_table(curr_tbl regclass, past_tbl text) AS $fn$
DECLARE
  curr_tbl_qual   text := simc.quote_regclass(curr_tbl);
  past_tbl_schema text := (parse_ident(past_tbl))[1];
  past_tbl_name   text := (parse_ident(past_tbl))[2];
  past_tbl_qual   text := quote_ident(past_tbl_schema) || '.' || quote_ident(past_tbl_name);

jschaf

# We append the integers 1..50 to a base prefix.
# The problematic strings have the apostrophe \xe2
#    Andy’s liqour parent account
#    Carr’s Bar N’ Grill

short dest error transforming unicode to ascii src_bytes="wind-Andy\xe2" src_bytes_read=10, dst_bytes="wind-And\x00\x00" dst_bytes_written=8: transform: short destination buffer
short dest error transforming unicode to ascii src_bytes="wind-Andy\xe21" src_bytes_read=11, dst_bytes="wind-And\x00\x00\x00" dst_bytes_written=8: transform: short destination buffer    ...
...
short dest error transforming unicode to ascii src_bytes="wind-Andy\xe246" src_bytes_read=12, dst_bytes="wind-Andy\x00\x00\x00" dst_bytes_written=9: transform: short destination buffer
short dest error transforming unicode to ascii src_bytes="wind-Andy\xe247" src_bytes_read=12, dst_bytes="wind-Andy\x00\x00\x00" dst_bytes_written=9: transform: short destination buffer

jschaf

package main

import (
	"fmt"
	"golang.org/x/text/runes"
	"golang.org/x/text/transform"
	"golang.org/x/text/unicode/norm"
	"unicode"
)

jschaf

#!/bin/zsh

function port-kill() {
  local port="$1"
  local pids
  # Simplest way to fill an array from a command. The results are whitespace
  # safe.
  # shellcheck disable=SC2207
  pids=( $(lsof -t -i:"${port}") )
  if [[ "${#pids[@]}" == 0 ]]; then

jschaf

import type { Dispatch, SetStateAction } from 'react';
import { useCallback, useRef, useState } from 'react';

/** The returned value of a useRef hook, but marked as readonly. */
type ReadOnlyRef<T> = {
  readonly current: T;
};

/** The return type of useStateRef. */
type StateRefResult<S> = [S, Dispatch<SetStateAction<S>>, ReadOnlyRef<S>];