CAFxX

Language/syntax

Shorthand error definition

Instead of things like var ErrFoo = errors.New("foo") or return fmt.Errorf("foo: %d", n) I would like a shorthand syntax that allows to define a new error type.

Simple error

CAFxX

package bulkinsert

import (
	"context"
	"database/sql"
	"errors"
	"fmt"
	"strings"
)

CAFxX

package mysql

import (
	"bytes"
	"context"
	"database/sql"
	"encoding/csv"
	"errors"
	"fmt"
	"io"

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package xsync

import "sync"

type TryLocker interface {
  sync.Locker // Lock(); Unlock()
  TryLock() bool
}

// LockAndDo will acquire the lock l and execute fn.

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package batchgetter

type Getter[I, T any] interface {
  Get(context.Context, []I) ([]T, error)
}

type BatchGetter[I, T any] struct {
  parent Getter[I, T]
  batchWait time.Duration
  

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package main

import "fmt"

func genOptIface(name string, opt ...string) {
	if len(opt) == 0 {
		panic("zero opt types")
	}
	if len(opt) > 10 {
		panic("too many opt types")

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#include <immintrin.h>
#include <stdint.h>

int getIndexOf(__m512i const *values, int64_t target)
{
    __m512i valuesSimd = _mm512_loadu_si512(values);
    __m512i targetSplatted = _mm512_set1_epi64(target);
    __mmask8 equalMask = _mm512_cmpeq_epi64_mask(valuesSimd, targetSplatted);
    uint32_t equalMaskInt = _cvtmask8_u32(equalMask);
    int index = _tzcnt_u32(equalMaskInt);

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%%{
utf8 = 
    ( 0..127 | 192..223 128..191 | 224..239 128..191 128..191 | 240..247 128..191 128..191 128..191 )
    - ( 244 144..191 any any | 245..247 any any any ) # over U+10FFFF
    - ( 0xC0..0xC1 any ) # overlong 2-byte encodings
    - ( 224 128..159 any ) # overlong 3-byte encodings
    - ( 240 128..143 any any ) # overlong 4-byte encodings
    - ( 237 160..191 any ) # invalid utf-16 surrogate pairs
    ;
main := utf8* ;

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// libdivide.h - Optimized integer division
// https://libdivide.com
//
// Copyright (C) 2010 - 2021 ridiculous_fish, <libdivide@ridiculousfish.com>
// Copyright (C) 2016 - 2021 Kim Walisch, <kim.walisch@gmail.com>
//
// libdivide is dual-licensed under the Boost or zlib licenses.
// You may use libdivide under the terms of either of these.
// See LICENSE.txt for more details.

CAFxX

package main

import (
	"encoding"
	"fmt"
	"reflect"
	"regexp"
	"strconv"
	"time"
)