task の登録
{
// See https://go.microsoft.com/fwlink/?LinkId=733558
// for the documentation about the tasks.json format
"version": "2.0.0",
"tasks": [
{
"label": "cargo run",
"type": "shell",
"command": "RUST_BACKTRACE=1",
"args": [
"cargo",
"run",
"--bin",
"${fileBasenameNoExtension}"
],
"group": {
"kind": "build",
"isDefault": true
}
}
]
}
{
// Place your snippets for rust here. Each snippet is defined under a snippet name and has a prefix, body and
// description. The prefix is what is used to trigger the snippet and the body will be expanded and inserted. Possible variables are:
// $1, $2 for tab stops, $0 for the final cursor position, and ${1:label}, ${2:another} for placeholders. Placeholders with the
// same ids are connected.
// Example:
// "Print to console": {
// "prefix": "log",
// "body": [
// "console.log('$1');",
// "$2"
// ],
// "description": "Log output to console"
// }
"Scanner and main": {
"prefix": "scanner",
"body": [
"fn main() {",
" let s = std::io::stdin();",
" let mut sc = Scanner { stdin: s.lock() };",
" $1",
"}",
"",
"pub struct Scanner<R> {",
" stdin: R,",
"}",
"",
"impl<R: std::io::Read> Scanner<R> {",
" pub fn read<T: std::str::FromStr>(&mut self) -> T {",
" use std::io::Read;",
" let buf = self",
" .stdin",
" .by_ref()",
" .bytes()",
" .map(|b| b.unwrap())",
" .skip_while(|&b| b == b' ' || b == b'\\n' || b == b'\\r')",
" .take_while(|&b| b != b' ' && b != b'\\n' && b != b'\\r')",
" .collect::<Vec<_>>();",
" unsafe { std::str::from_utf8_unchecked(&buf) }",
" .parse()",
" .ok()",
" .expect(\"Parse error.\")",
" }",
" pub fn vec<T: std::str::FromStr>(&mut self, n: usize) -> Vec<T> {",
" (0..n).map(|_| self.read()).collect()",
" }",
" pub fn chars(&mut self) -> Vec<char> {",
" self.read::<String>().chars().collect()",
" }",
"}"
]
}
}
