mirror of
https://github.com/denoland/deno.git
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e5e2c45998
* Uses diagnostics from deno_ast * Real fix for https://github.com/denoland/deno/pull/22310 * Moves `deno lint --json` code here * Upgrades swc Closes #22117 Closes #22109 Closes #21927 Closes #20993
337 lines
7.9 KiB
Rust
337 lines
7.9 KiB
Rust
// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
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use std::sync::Arc;
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use deno_ast::MediaType;
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use deno_ast::ModuleSpecifier;
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use deno_core::error::AnyError;
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use deno_core::serde_json;
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use deno_graph::DefaultModuleAnalyzer;
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use deno_graph::ModuleInfo;
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use deno_graph::ModuleParser;
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use deno_runtime::deno_webstorage::rusqlite::params;
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use super::cache_db::CacheDB;
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use super::cache_db::CacheDBConfiguration;
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use super::cache_db::CacheFailure;
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use super::FastInsecureHasher;
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const SELECT_MODULE_INFO: &str = "
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SELECT
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module_info
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FROM
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moduleinfocache
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WHERE
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specifier=?1
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AND media_type=?2
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AND source_hash=?3
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LIMIT 1";
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pub static MODULE_INFO_CACHE_DB: CacheDBConfiguration = CacheDBConfiguration {
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table_initializer: "CREATE TABLE IF NOT EXISTS moduleinfocache (
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specifier TEXT PRIMARY KEY,
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media_type TEXT NOT NULL,
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source_hash TEXT NOT NULL,
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module_info TEXT NOT NULL
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);",
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on_version_change: "DELETE FROM moduleinfocache;",
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preheat_queries: &[SELECT_MODULE_INFO],
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on_failure: CacheFailure::InMemory,
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};
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pub struct ModuleInfoCacheSourceHash(String);
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impl ModuleInfoCacheSourceHash {
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pub fn new(hash: u64) -> Self {
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Self(hash.to_string())
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}
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pub fn from_source(source: &[u8]) -> Self {
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Self::new(FastInsecureHasher::hash(source))
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}
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pub fn as_str(&self) -> &str {
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&self.0
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}
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}
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/// A cache of `deno_graph::ModuleInfo` objects. Using this leads to a considerable
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/// performance improvement because when it exists we can skip parsing a module for
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/// deno_graph.
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pub struct ModuleInfoCache {
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conn: CacheDB,
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}
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impl ModuleInfoCache {
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#[cfg(test)]
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pub fn new_in_memory(version: &'static str) -> Self {
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Self::new(CacheDB::in_memory(&MODULE_INFO_CACHE_DB, version))
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}
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pub fn new(conn: CacheDB) -> Self {
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Self { conn }
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}
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/// Useful for testing: re-create this cache DB with a different current version.
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#[cfg(test)]
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pub(crate) fn recreate_with_version(self, version: &'static str) -> Self {
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Self {
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conn: self.conn.recreate_with_version(version),
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}
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}
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pub fn get_module_info(
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&self,
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specifier: &ModuleSpecifier,
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media_type: MediaType,
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expected_source_hash: &ModuleInfoCacheSourceHash,
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) -> Result<Option<ModuleInfo>, AnyError> {
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let query = SELECT_MODULE_INFO;
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let res = self.conn.query_row(
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query,
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params![
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&specifier.as_str(),
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serialize_media_type(media_type),
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expected_source_hash.as_str(),
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],
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|row| {
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let module_info: String = row.get(0)?;
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let module_info = serde_json::from_str(&module_info)?;
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Ok(module_info)
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},
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)?;
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Ok(res)
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}
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pub fn set_module_info(
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&self,
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specifier: &ModuleSpecifier,
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media_type: MediaType,
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source_hash: &ModuleInfoCacheSourceHash,
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module_info: &ModuleInfo,
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) -> Result<(), AnyError> {
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let sql = "
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INSERT OR REPLACE INTO
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moduleinfocache (specifier, media_type, source_hash, module_info)
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VALUES
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(?1, ?2, ?3, ?4)";
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self.conn.execute(
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sql,
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params![
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specifier.as_str(),
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serialize_media_type(media_type),
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source_hash.as_str(),
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&serde_json::to_string(&module_info)?,
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],
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)?;
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Ok(())
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}
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pub fn as_module_analyzer<'a>(
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&'a self,
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parser: &'a dyn ModuleParser,
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) -> ModuleInfoCacheModuleAnalyzer<'a> {
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ModuleInfoCacheModuleAnalyzer {
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module_info_cache: self,
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parser,
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}
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}
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}
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pub struct ModuleInfoCacheModuleAnalyzer<'a> {
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module_info_cache: &'a ModuleInfoCache,
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parser: &'a dyn ModuleParser,
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}
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impl<'a> deno_graph::ModuleAnalyzer for ModuleInfoCacheModuleAnalyzer<'a> {
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fn analyze(
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&self,
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specifier: &ModuleSpecifier,
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source: Arc<str>,
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media_type: MediaType,
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) -> Result<ModuleInfo, deno_ast::ParseDiagnostic> {
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// attempt to load from the cache
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let source_hash = ModuleInfoCacheSourceHash::from_source(source.as_bytes());
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match self.module_info_cache.get_module_info(
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specifier,
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media_type,
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&source_hash,
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) {
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Ok(Some(info)) => return Ok(info),
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Ok(None) => {}
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Err(err) => {
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log::debug!(
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"Error loading module cache info for {}. {:#}",
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specifier,
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err
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);
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}
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}
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// otherwise, get the module info from the parsed source cache
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let analyzer = DefaultModuleAnalyzer::new(self.parser);
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let module_info = analyzer.analyze(specifier, source, media_type)?;
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// then attempt to cache it
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if let Err(err) = self.module_info_cache.set_module_info(
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specifier,
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media_type,
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&source_hash,
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&module_info,
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) {
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log::debug!(
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"Error saving module cache info for {}. {:#}",
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specifier,
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err
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);
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}
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Ok(module_info)
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}
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}
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// todo(dsherret): change this to be stored as an integer next time
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// the cache version is bumped
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fn serialize_media_type(media_type: MediaType) -> &'static str {
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use MediaType::*;
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match media_type {
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JavaScript => "1",
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Jsx => "2",
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Mjs => "3",
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Cjs => "4",
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TypeScript => "5",
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Mts => "6",
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Cts => "7",
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Dts => "8",
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Dmts => "9",
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Dcts => "10",
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Tsx => "11",
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Json => "12",
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Wasm => "13",
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TsBuildInfo => "14",
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SourceMap => "15",
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Unknown => "16",
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}
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}
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#[cfg(test)]
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mod test {
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use deno_graph::PositionRange;
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use deno_graph::SpecifierWithRange;
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use super::*;
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#[test]
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pub fn module_info_cache_general_use() {
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let cache = ModuleInfoCache::new_in_memory("1.0.0");
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let specifier1 =
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ModuleSpecifier::parse("https://localhost/mod.ts").unwrap();
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let specifier2 =
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ModuleSpecifier::parse("https://localhost/mod2.ts").unwrap();
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assert_eq!(
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cache
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.get_module_info(
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&specifier1,
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MediaType::JavaScript,
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&ModuleInfoCacheSourceHash::new(1)
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)
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.unwrap(),
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None
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);
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let mut module_info = ModuleInfo::default();
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module_info.jsdoc_imports.push(SpecifierWithRange {
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range: PositionRange {
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start: deno_graph::Position {
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line: 0,
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character: 3,
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},
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end: deno_graph::Position {
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line: 1,
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character: 2,
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},
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},
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text: "test".to_string(),
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});
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cache
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.set_module_info(
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&specifier1,
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MediaType::JavaScript,
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&ModuleInfoCacheSourceHash::new(1),
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&module_info,
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)
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.unwrap();
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assert_eq!(
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cache
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.get_module_info(
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&specifier1,
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MediaType::JavaScript,
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&ModuleInfoCacheSourceHash::new(1)
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)
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.unwrap(),
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Some(module_info.clone())
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);
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assert_eq!(
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cache
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.get_module_info(
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&specifier2,
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MediaType::JavaScript,
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&ModuleInfoCacheSourceHash::new(1)
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)
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.unwrap(),
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None,
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);
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// different media type
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assert_eq!(
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cache
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.get_module_info(
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&specifier1,
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MediaType::TypeScript,
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&ModuleInfoCacheSourceHash::new(1)
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)
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.unwrap(),
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None,
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);
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// different source hash
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assert_eq!(
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cache
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.get_module_info(
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&specifier1,
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MediaType::JavaScript,
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&ModuleInfoCacheSourceHash::new(2)
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)
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.unwrap(),
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None,
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);
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// try recreating with the same version
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let cache = cache.recreate_with_version("1.0.0");
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// should get it
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assert_eq!(
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cache
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.get_module_info(
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&specifier1,
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MediaType::JavaScript,
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&ModuleInfoCacheSourceHash::new(1)
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)
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.unwrap(),
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Some(module_info)
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);
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// try recreating with a different version
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let cache = cache.recreate_with_version("1.0.1");
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// should no longer exist
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assert_eq!(
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cache
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.get_module_info(
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&specifier1,
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MediaType::JavaScript,
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&ModuleInfoCacheSourceHash::new(1)
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)
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.unwrap(),
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None,
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);
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}
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}
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