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// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
use deno_ast::ModuleSpecifier;
use deno_core::error::AnyError;
use deno_runtime::code_cache;
use deno_runtime::deno_webstorage::rusqlite::params;
use super::cache_db::CacheDB;
use super::cache_db::CacheDBConfiguration;
use super::cache_db::CacheDBHash;
use super::cache_db::CacheFailure;
pub static CODE_CACHE_DB: CacheDBConfiguration = CacheDBConfiguration {
table_initializer: concat!(
"CREATE TABLE IF NOT EXISTS codecache (",
"specifier TEXT NOT NULL,",
"type INTEGER NOT NULL,",
"source_hash INTEGER NOT NULL,",
"data BLOB NOT NULL,",
"PRIMARY KEY (specifier, type)",
");"
),
on_version_change: "DELETE FROM codecache;",
preheat_queries: &[],
on_failure: CacheFailure::Blackhole,
};
pub struct CodeCache {
inner: CodeCacheInner,
}
impl CodeCache {
pub fn new(db: CacheDB) -> Self {
Self {
inner: CodeCacheInner::new(db),
}
}
fn ensure_ok<T: Default>(res: Result<T, AnyError>) -> T {
match res {
Ok(x) => x,
Err(err) => {
// TODO(mmastrac): This behavior was inherited from before the refactoring but it probably makes sense to move it into the cache
// at some point.
// should never error here, but if it ever does don't fail
if cfg!(debug_assertions) {
panic!("Error using code cache: {err:#}");
} else {
log::debug!("Error using code cache: {:#}", err);
}
T::default()
}
}
}
pub fn get_sync(
&self,
specifier: &ModuleSpecifier,
code_cache_type: code_cache::CodeCacheType,
source_hash: u64,
) -> Option<Vec<u8>> {
Self::ensure_ok(self.inner.get_sync(
specifier.as_str(),
code_cache_type,
CacheDBHash::new(source_hash),
))
}
pub fn set_sync(
&self,
specifier: &ModuleSpecifier,
code_cache_type: code_cache::CodeCacheType,
source_hash: u64,
data: &[u8],
) {
Self::ensure_ok(self.inner.set_sync(
specifier.as_str(),
code_cache_type,
CacheDBHash::new(source_hash),
data,
));
}
}
impl code_cache::CodeCache for CodeCache {
fn get_sync(
&self,
specifier: &ModuleSpecifier,
code_cache_type: code_cache::CodeCacheType,
source_hash: u64,
) -> Option<Vec<u8>> {
self.get_sync(specifier, code_cache_type, source_hash)
}
fn set_sync(
&self,
specifier: ModuleSpecifier,
code_cache_type: code_cache::CodeCacheType,
source_hash: u64,
data: &[u8],
) {
self.set_sync(&specifier, code_cache_type, source_hash, data);
}
}
struct CodeCacheInner {
conn: CacheDB,
}
impl CodeCacheInner {
pub fn new(conn: CacheDB) -> Self {
Self { conn }
}
pub fn get_sync(
&self,
specifier: &str,
code_cache_type: code_cache::CodeCacheType,
source_hash: CacheDBHash,
) -> Result<Option<Vec<u8>>, AnyError> {
let query = "
SELECT
data
FROM
codecache
WHERE
specifier=?1 AND type=?2 AND source_hash=?3
LIMIT 1";
let params = params![
specifier,
serialize_code_cache_type(code_cache_type),
source_hash,
];
self.conn.query_row(query, params, |row| {
let value: Vec<u8> = row.get(0)?;
Ok(value)
})
}
pub fn set_sync(
&self,
specifier: &str,
code_cache_type: code_cache::CodeCacheType,
source_hash: CacheDBHash,
data: &[u8],
) -> Result<(), AnyError> {
let sql = "
INSERT OR REPLACE INTO
codecache (specifier, type, source_hash, data)
VALUES
(?1, ?2, ?3, ?4)";
let params = params![
specifier,
serialize_code_cache_type(code_cache_type),
source_hash,
data
];
self.conn.execute(sql, params)?;
Ok(())
}
}
fn serialize_code_cache_type(
code_cache_type: code_cache::CodeCacheType,
) -> i64 {
match code_cache_type {
code_cache::CodeCacheType::Script => 0,
code_cache::CodeCacheType::EsModule => 1,
}
}
#[cfg(test)]
mod test {
use super::*;
#[test]
pub fn end_to_end() {
let conn = CacheDB::in_memory(&CODE_CACHE_DB, "1.0.0");
let cache = CodeCacheInner::new(conn);
assert!(cache
.get_sync(
"file:///foo/bar.js",
code_cache::CodeCacheType::EsModule,
CacheDBHash::new(1),
)
.unwrap()
.is_none());
let data_esm = vec![1, 2, 3];
cache
.set_sync(
"file:///foo/bar.js",
code_cache::CodeCacheType::EsModule,
CacheDBHash::new(1),
&data_esm,
)
.unwrap();
assert_eq!(
cache
.get_sync(
"file:///foo/bar.js",
code_cache::CodeCacheType::EsModule,
CacheDBHash::new(1),
)
.unwrap()
.unwrap(),
data_esm
);
assert!(cache
.get_sync(
"file:///foo/bar.js",
code_cache::CodeCacheType::Script,
CacheDBHash::new(1),
)
.unwrap()
.is_none());
let data_script = vec![4, 5, 6];
cache
.set_sync(
"file:///foo/bar.js",
code_cache::CodeCacheType::Script,
CacheDBHash::new(1),
&data_script,
)
.unwrap();
assert_eq!(
cache
.get_sync(
"file:///foo/bar.js",
code_cache::CodeCacheType::Script,
CacheDBHash::new(1),
)
.unwrap()
.unwrap(),
data_script
);
assert_eq!(
cache
.get_sync(
"file:///foo/bar.js",
code_cache::CodeCacheType::EsModule,
CacheDBHash::new(1),
)
.unwrap()
.unwrap(),
data_esm
);
}
}
|
