223 lines
7.8 KiB
Rust
223 lines
7.8 KiB
Rust
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//! Using Resolution Box - 綺麗綺麗なusing文解決専門家！📦
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//!
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//! 巨大な `collect_using_and_strip` 関数を箱に分解して、
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//! 責務を明確にしてテストしやすくするにゃ！
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use crate::runner::NyashRunner;
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use std::collections::HashMap;
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use std::path::{Path, PathBuf};
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/// 📦 UsingResolutionBox - using文解決の専門家！
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///
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/// using文の解析、パス解決、重複チェックを一手に引き受ける箱にゃ！
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pub struct UsingResolutionBox<'a> {
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runner: &'a NyashRunner,
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config: UsingConfig,
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ctx_dir: Option<PathBuf>,
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filename_canon: Option<PathBuf>,
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inside_pkg: bool,
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seen_paths: HashMap<String, (String, usize)>, // canon_path -> (alias/label, first_line)
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seen_aliases: HashMap<String, (String, usize)>, // alias -> (canon_path, first_line)
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}
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/// 🎯 UsingTarget - 解析済みusing文の構造体にゃ！
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#[derive(Debug, Clone)]
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pub struct UsingTarget {
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pub original: String,
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pub target: String,
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pub target_unquoted: String,
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pub alias: Option<String>,
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pub line_no: usize,
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pub is_path: bool,
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}
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/// ⚙️ UsingConfig - using解決の設定！
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#[derive(Debug)]
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pub struct UsingConfig {
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pub prod: bool,
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pub strict: bool,
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pub verbose: bool,
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pub allow_file_using: bool,
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}
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impl<'a> UsingResolutionBox<'a> {
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/// 🌟 新しいUsingResolutionBoxを作るにゃ！
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pub fn new(runner: &'a NyashRunner, filename: &str) -> Result<Self, String> {
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let using_ctx = runner.init_using_context();
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let config = UsingConfig {
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prod: crate::config::env::using_is_prod(),
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strict: std::env::var("NYASH_USING_STRICT").ok().as_deref() == Some("1"),
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verbose: crate::config::env::cli_verbose()
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|| std::env::var("NYASH_RESOLVE_TRACE").ok().as_deref() == Some("1"),
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allow_file_using: crate::config::env::allow_using_file(),
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};
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let ctx_dir = Path::new(filename).parent().map(|p| p.to_path_buf());
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// ファイルがパッケージ内にあるかチェック
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let filename_canon = std::fs::canonicalize(filename).ok();
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let mut inside_pkg = false;
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if let Some(ref fc) = filename_canon {
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for (_name, pkg) in &using_ctx.packages {
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let base = Path::new(&pkg.path);
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if let Ok(root) = std::fs::canonicalize(base) {
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if fc.starts_with(&root) {
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inside_pkg = true;
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break;
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}
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}
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}
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}
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Ok(Self {
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runner,
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config,
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ctx_dir,
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filename_canon,
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inside_pkg,
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seen_paths: HashMap::new(),
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seen_aliases: HashMap::new(),
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})
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}
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/// 🔍 using文を解析するにゃ！
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pub fn parse_using_line(&self, line: &str, line_no: usize) -> Option<UsingTarget> {
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let t = line.trim_start();
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if !t.starts_with("using ") {
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return None;
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}
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crate::cli_v!("[using] stripped line: {}", line);
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let rest0 = t.strip_prefix("using ").unwrap().trim();
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let rest0 = rest0.split('#').next().unwrap_or(rest0).trim();
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let rest0 = rest0.strip_suffix(';').unwrap_or(rest0).trim();
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let (target, alias) = if let Some(pos) = rest0.find(" as ") {
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(
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rest0[..pos].trim().to_string(),
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Some(rest0[pos + 4..].trim().to_string()),
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)
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} else {
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(rest0.to_string(), None)
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};
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let target_unquoted = target.trim_matches('"').to_string();
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let using_ctx = self.runner.init_using_context();
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// 既知のエイリアスかモジュールかチェック
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let is_known_alias_or_module = using_ctx.aliases.contains_key(&target_unquoted)
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|| using_ctx.pending_modules.iter().any(|(k, _)| k == &target_unquoted)
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|| using_ctx.packages.contains_key(&target_unquoted);
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let is_path = if is_known_alias_or_module {
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false
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} else {
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target.starts_with("./")
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|| target.starts_with('/')
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|| target.ends_with(".nyash")
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|| target.ends_with(".hako")
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};
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Some(UsingTarget {
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original: line.to_string(),
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target,
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target_unquoted,
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alias,
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line_no,
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is_path,
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})
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}
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/// 🚀 パスを解決するにゃ！
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pub fn resolve_path(&self, target: &UsingTarget) -> Result<String, String> {
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if !target.is_path {
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return Err("Not a file path".to_string());
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}
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// ファイルusingチェック
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if (self.config.prod || !self.config.allow_file_using) && !self.inside_pkg {
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return Err(format!(
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"{}:{}: using: file paths are disallowed in this profile. Add it to nyash.toml [using]/[modules] and reference by name: {}\n suggestions: using \"alias.name\" as Name | dev/test: set NYASH_PREINCLUDE=1 to expand includes ahead of VM\n docs: see docs/reference/using.md",
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"filename", // TODO: 実際のファイル名を渡す
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target.line_no,
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target.target
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));
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}
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let path = target.target.trim_matches('"').to_string();
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let mut p = PathBuf::from(&path);
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// 相対パス解決
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if p.is_relative() {
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if let Some(dir) = &self.ctx_dir {
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let cand = dir.join(&p);
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if cand.exists() {
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p = cand;
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}
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}
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// NYASH_ROOTも試す
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if p.is_relative() {
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if let Ok(root) = std::env::var("NYASH_ROOT") {
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let cand = Path::new(&root).join(&p);
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if cand.exists() {
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p = cand;
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}
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}
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}
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}
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p.to_str()
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.ok_or_else(|| "Invalid path".to_string())
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.map(|s| s.to_string())
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}
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/// 🛡️ 重複チェックするにゃ！
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pub fn check_duplicates(&mut self, target: &UsingTarget, resolved_path: &str) -> Result<(), String> {
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let canon_path = std::fs::canonicalize(resolved_path)
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.unwrap_or_else(|_| PathBuf::from(resolved_path));
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let canon_str = canon_path.to_string_lossy();
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// パスの重複チェック
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if let Some((prev_alias, prev_line)) = self.seen_paths.get(&canon_str.to_string()) {
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return Err(format!(
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"{}:{}: using: duplicate target (first imported at {}:{})",
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"filename", // TODO: 実際のファイル名を渡す
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target.line_no,
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prev_alias,
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prev_line
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));
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}
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// エイリアスの重複チェック
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if let Some(ref alias_name) = target.alias {
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if let Some((prev_path, prev_line)) = self.seen_aliases.get(alias_name) {
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return Err(format!(
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"{}:{}: using: duplicate alias '{}' (first used for {} at {})",
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"filename", // TODO: 実際のファイル名を渡す
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target.line_no,
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alias_name,
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prev_path,
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prev_line
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));
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}
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}
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// 記録
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let alias_label = target.alias.as_ref().unwrap_or(&target.target).clone();
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self.seen_paths.insert(canon_str.to_string(), (alias_label.clone(), target.line_no));
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if let Some(ref alias_name) = target.alias {
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self.seen_aliases.insert(alias_name.clone(), (resolved_path.to_string(), target.line_no));
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}
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Ok(())
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}
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/// 📊 設定を取得するにゃ！
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pub fn config(&self) -> &UsingConfig {
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&self.config
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}
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}
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