mirror of
https://github.com/denoland/deno.git
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254 lines
7.4 KiB
Rust
254 lines
7.4 KiB
Rust
// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
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use std::path::Path;
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use deno_ast::ModuleSpecifier;
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use deno_core::error::AnyError;
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use deno_runtime::deno_webstorage::rusqlite::params;
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use deno_runtime::deno_webstorage::rusqlite::Connection;
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use super::common::run_sqlite_pragma;
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/// The cache used to tell whether type checking should occur again.
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///
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/// This simply stores a hash of the inputs of each successful type check
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/// and only clears them out when changing CLI versions.
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pub struct TypeCheckCache(Option<Connection>);
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impl TypeCheckCache {
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pub fn new(db_file_path: &Path) -> Self {
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log::debug!("Loading type check cache.");
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match Self::try_new(db_file_path) {
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Ok(cache) => cache,
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Err(err) => {
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log::debug!(
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concat!(
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"Failed loading internal type checking cache. ",
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"Recreating...\n\nError details:\n{:#}",
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),
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err
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);
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// Maybe the cache file is corrupt. Attempt to remove the cache file
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// then attempt to recreate again. Otherwise, use null object pattern.
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match std::fs::remove_file(db_file_path) {
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Ok(_) => match Self::try_new(db_file_path) {
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Ok(cache) => cache,
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Err(err) => {
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log::debug!(
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concat!(
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"Unable to load internal cache for type checking. ",
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"This will reduce the performance of type checking.\n\n",
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"Error details:\n{:#}",
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),
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err
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);
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Self(None)
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}
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},
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Err(_) => Self(None),
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}
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}
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}
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}
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fn try_new(db_file_path: &Path) -> Result<Self, AnyError> {
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let conn = Connection::open(db_file_path)?;
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Self::from_connection(conn, crate::version::deno())
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}
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fn from_connection(
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conn: Connection,
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cli_version: String,
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) -> Result<Self, AnyError> {
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run_sqlite_pragma(&conn)?;
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create_tables(&conn, cli_version)?;
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Ok(Self(Some(conn)))
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}
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pub fn has_check_hash(&self, hash: u64) -> bool {
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match self.hash_check_hash_result(hash) {
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Ok(val) => val,
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Err(err) => {
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if cfg!(debug_assertions) {
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panic!("Error retrieving hash: {}", err);
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} else {
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log::debug!("Error retrieving hash: {}", err);
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// fail silently when not debugging
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false
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}
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}
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}
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}
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fn hash_check_hash_result(&self, hash: u64) -> Result<bool, AnyError> {
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let conn = match &self.0 {
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Some(conn) => conn,
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None => return Ok(false),
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};
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let query = "SELECT * FROM checkcache WHERE check_hash=?1 LIMIT 1";
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let mut stmt = conn.prepare_cached(query)?;
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Ok(stmt.exists(params![hash.to_string()])?)
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}
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pub fn add_check_hash(&self, check_hash: u64) {
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if let Err(err) = self.add_check_hash_result(check_hash) {
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if cfg!(debug_assertions) {
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panic!("Error saving check hash: {}", err);
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} else {
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log::debug!("Error saving check hash: {}", err);
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}
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}
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}
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fn add_check_hash_result(&self, check_hash: u64) -> Result<(), AnyError> {
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let conn = match &self.0 {
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Some(conn) => conn,
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None => return Ok(()),
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};
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let sql = "
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INSERT OR REPLACE INTO
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checkcache (check_hash)
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VALUES
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(?1)";
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let mut stmt = conn.prepare_cached(sql)?;
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stmt.execute(params![&check_hash.to_string(),])?;
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Ok(())
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}
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pub fn get_tsbuildinfo(&self, specifier: &ModuleSpecifier) -> Option<String> {
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let conn = match &self.0 {
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Some(conn) => conn,
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None => return None,
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};
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let mut stmt = conn
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.prepare_cached("SELECT text FROM tsbuildinfo WHERE specifier=?1 LIMIT 1")
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.ok()?;
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let mut rows = stmt.query(params![specifier.to_string()]).ok()?;
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let row = rows.next().ok().flatten()?;
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row.get(0).ok()
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}
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pub fn set_tsbuildinfo(&self, specifier: &ModuleSpecifier, text: &str) {
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if let Err(err) = self.set_tsbuildinfo_result(specifier, text) {
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// should never error here, but if it ever does don't fail
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if cfg!(debug_assertions) {
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panic!("Error saving tsbuildinfo: {}", err);
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} else {
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log::debug!("Error saving tsbuildinfo: {}", err);
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}
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}
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}
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fn set_tsbuildinfo_result(
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&self,
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specifier: &ModuleSpecifier,
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text: &str,
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) -> Result<(), AnyError> {
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let conn = match &self.0 {
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Some(conn) => conn,
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None => return Ok(()),
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};
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let mut stmt = conn.prepare_cached(
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"INSERT OR REPLACE INTO tsbuildinfo (specifier, text) VALUES (?1, ?2)",
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)?;
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stmt.execute(params![specifier.to_string(), text])?;
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Ok(())
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}
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}
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fn create_tables(
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conn: &Connection,
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cli_version: String,
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) -> Result<(), AnyError> {
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// INT doesn't store up to u64, so use TEXT
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conn.execute(
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"CREATE TABLE IF NOT EXISTS checkcache (
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check_hash TEXT PRIMARY KEY
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)",
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[],
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)?;
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conn.execute(
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"CREATE TABLE IF NOT EXISTS tsbuildinfo (
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specifier TEXT PRIMARY KEY,
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text TEXT NOT NULL
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)",
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[],
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)?;
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conn.execute(
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"CREATE TABLE IF NOT EXISTS info (
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key TEXT PRIMARY KEY,
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value TEXT NOT NULL
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)",
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[],
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)?;
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// delete the cache when the CLI version changes
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let data_cli_version: Option<String> = conn
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.query_row(
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"SELECT value FROM info WHERE key='CLI_VERSION' LIMIT 1",
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[],
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|row| row.get(0),
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)
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.ok();
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if data_cli_version != Some(cli_version.to_string()) {
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conn.execute("DELETE FROM checkcache", params![])?;
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conn.execute("DELETE FROM tsbuildinfo", params![])?;
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let mut stmt = conn
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.prepare("INSERT OR REPLACE INTO info (key, value) VALUES (?1, ?2)")?;
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stmt.execute(params!["CLI_VERSION", &cli_version])?;
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}
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Ok(())
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}
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#[cfg(test)]
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mod test {
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use super::*;
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#[test]
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pub fn check_cache_general_use() {
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let conn = Connection::open_in_memory().unwrap();
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let cache =
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TypeCheckCache::from_connection(conn, "1.0.0".to_string()).unwrap();
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assert!(!cache.has_check_hash(1));
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cache.add_check_hash(1);
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assert!(cache.has_check_hash(1));
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assert!(!cache.has_check_hash(2));
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let specifier1 = ModuleSpecifier::parse("file:///test.json").unwrap();
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assert_eq!(cache.get_tsbuildinfo(&specifier1), None);
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cache.set_tsbuildinfo(&specifier1, "test");
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assert_eq!(cache.get_tsbuildinfo(&specifier1), Some("test".to_string()));
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// try changing the cli version (should clear)
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let conn = cache.0.unwrap();
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let cache =
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TypeCheckCache::from_connection(conn, "2.0.0".to_string()).unwrap();
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assert!(!cache.has_check_hash(1));
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cache.add_check_hash(1);
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assert!(cache.has_check_hash(1));
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assert_eq!(cache.get_tsbuildinfo(&specifier1), None);
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cache.set_tsbuildinfo(&specifier1, "test");
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assert_eq!(cache.get_tsbuildinfo(&specifier1), Some("test".to_string()));
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// recreating the cache should not remove the data because the CLI version is the same
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let conn = cache.0.unwrap();
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let cache =
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TypeCheckCache::from_connection(conn, "2.0.0".to_string()).unwrap();
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assert!(cache.has_check_hash(1));
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assert!(!cache.has_check_hash(2));
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assert_eq!(cache.get_tsbuildinfo(&specifier1), Some("test".to_string()));
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// adding when already exists should not cause issue
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cache.add_check_hash(1);
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assert!(cache.has_check_hash(1));
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cache.set_tsbuildinfo(&specifier1, "other");
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assert_eq!(
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cache.get_tsbuildinfo(&specifier1),
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Some("other".to_string())
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);
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}
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}
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