kylelemons

Leaking Undefined Behavior

Don’t use = when assigning with an error. Typically, this is paired with predefining an err variable, though this may be implicit in an earlier := and thus be invisible.

This often presents in a few ways ways:

// Assigning outside the current scope
var somethingOutsideTheScope T
{

kylelemons

// Leetcode:
//    https://leetcode.com/problems/maximum-value-of-k-coins-from-piles/

func maxValueOfCoins(piles [][]int, k int) int {
    // Record the points cumulatively for taking N coins from each pile
    for p := range piles {
        for c := range piles[p] {
            if c+1 >= len(piles[p]) {
                continue
            }

kylelemons

package fs

import (
	"fmt"
	"io"
	"os"

	. "io/fs"
)

kylelemons

// https://go2goplay.golang.org/p/MGkmOhAcV79

package main

import (
	"fmt"
)

type Pair[K, V any] struct {
	Key   K

kylelemons

package main

import (
        "flag"
        "fmt"
        "runtime"
        "sync"
        "time"
)

kylelemons

diff --git a/internal/lsp/source/analysis.go b/internal/lsp/source/analysis.go
index e9c9ecc1..cea1e548 100644
--- a/internal/lsp/source/analysis.go
+++ b/internal/lsp/source/analysis.go
@@ -16,6 +16,7 @@ import (
        "strings"
        "sync"
        "time"
+       "runtime/debug"

kylelemons

.section .data._gba_asm_interrupt_handler
.global  _gba_asm_interrupt_handler
.type    _gba_asm_interrupt_handler, %function
.align
.arm

_gba_asm_interrupt_handler:
    // Registers:
    //   r0 = IOREG
    // NOTE:

kylelemons

Original:
-Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M

New:
-XX:+UseG1GC -Xmx3G -Xms1G -Dsun.rmi.dgc.server.gcInterval=2147483646 -XX:+UnlockExperimentalVMOptions -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M

kylelemons

#!/bin/bash

set -e

TOKEN="YOUR_GITHUB_AUTH_TOKEN_HERE"
USERNAME="YOUR_USERNAME"

mkdir -p repos published

for DIR in *.git; do

kylelemons

package main

import (
	"fmt"
	"sort"
	"strings"
	"unicode"
)

func main() {