mirror of
https://github.com/denoland/deno.git
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381 lines
10 KiB
Rust
381 lines
10 KiB
Rust
// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
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use std::path::Path;
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use deno_ast::CjsAnalysis;
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use deno_core::error::AnyError;
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use deno_core::parking_lot::Mutex;
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use deno_core::serde_json;
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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 serde::Deserialize;
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use serde::Serialize;
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use std::path::PathBuf;
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use std::sync::Arc;
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use super::common::run_sqlite_pragma;
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use super::FastInsecureHasher;
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// todo(dsherret): use deno_ast::CjsAnalysisData directly when upgrading deno_ast
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// See https://github.com/denoland/deno_ast/pull/117
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#[derive(Serialize, Deserialize)]
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struct CjsAnalysisData {
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pub exports: Vec<String>,
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pub reexports: Vec<String>,
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}
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pub struct NodeAnalysisCache {
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db_file_path: Option<PathBuf>,
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inner: Arc<Mutex<Option<Option<NodeAnalysisCacheInner>>>>,
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}
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impl NodeAnalysisCache {
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pub fn new(db_file_path: Option<PathBuf>) -> Self {
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Self {
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db_file_path,
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inner: Default::default(),
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}
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}
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pub fn compute_source_hash(text: &str) -> String {
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FastInsecureHasher::new()
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.write_str(text)
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.finish()
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.to_string()
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}
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pub fn get_cjs_analysis(
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&self,
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specifier: &str,
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expected_source_hash: &str,
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) -> Option<CjsAnalysis> {
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self
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.with_inner(|inner| {
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inner.get_cjs_analysis(specifier, expected_source_hash)
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})
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.flatten()
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}
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pub fn set_cjs_analysis(
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&self,
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specifier: &str,
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source_hash: &str,
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cjs_analysis: &CjsAnalysis,
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) {
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self.with_inner(|inner| {
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inner.set_cjs_analysis(specifier, source_hash, cjs_analysis)
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});
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}
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pub fn get_esm_analysis(
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&self,
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specifier: &str,
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expected_source_hash: &str,
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) -> Option<Vec<String>> {
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self
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.with_inner(|inner| {
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inner.get_esm_analysis(specifier, expected_source_hash)
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})
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.flatten()
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}
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pub fn set_esm_analysis(
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&self,
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specifier: &str,
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source_hash: &str,
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top_level_decls: &Vec<String>,
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) {
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self.with_inner(|inner| {
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inner.set_esm_analysis(specifier, source_hash, top_level_decls)
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});
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}
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fn with_inner<TResult>(
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&self,
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action: impl FnOnce(&NodeAnalysisCacheInner) -> Result<TResult, AnyError>,
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) -> Option<TResult> {
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// lazily create the cache in order to not
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let mut maybe_created = self.inner.lock();
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let inner = match maybe_created.as_ref() {
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Some(maybe_inner) => maybe_inner.as_ref(),
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None => {
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let maybe_inner = match NodeAnalysisCacheInner::new(
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self.db_file_path.as_deref(),
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crate::version::deno(),
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) {
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Ok(cache) => Some(cache),
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Err(err) => {
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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 creating node analysis cache: {:#}", err);
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} else {
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log::debug!("Error creating node analysis cache: {:#}", err);
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None
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}
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}
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};
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*maybe_created = Some(maybe_inner);
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maybe_created.as_ref().and_then(|p| p.as_ref())
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}
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}?;
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match action(inner) {
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Ok(result) => Some(result),
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Err(err) => {
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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 using esm analysis: {:#}", err);
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} else {
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log::debug!("Error using esm analysis: {:#}", err);
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}
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None
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}
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}
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}
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}
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struct NodeAnalysisCacheInner {
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conn: Connection,
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}
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impl NodeAnalysisCacheInner {
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pub fn new(
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db_file_path: Option<&Path>,
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version: String,
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) -> Result<Self, AnyError> {
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log::debug!("Opening node analysis cache.");
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let conn = match db_file_path {
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Some(path) => Connection::open(path)?,
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None => Connection::open_in_memory()?,
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};
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Self::from_connection(conn, version)
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}
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fn from_connection(
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conn: Connection,
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version: String,
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) -> Result<Self, AnyError> {
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run_sqlite_pragma(&conn)?;
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create_tables(&conn, &version)?;
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Ok(Self { conn })
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}
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pub fn get_cjs_analysis(
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&self,
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specifier: &str,
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expected_source_hash: &str,
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) -> Result<Option<CjsAnalysis>, AnyError> {
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let query = "
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SELECT
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data
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FROM
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cjsanalysiscache
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WHERE
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specifier=?1
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AND source_hash=?2
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LIMIT 1";
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let mut stmt = self.conn.prepare_cached(query)?;
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let mut rows = stmt.query(params![specifier, &expected_source_hash])?;
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if let Some(row) = rows.next()? {
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let analysis_info: String = row.get(0)?;
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let analysis_info: CjsAnalysisData =
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serde_json::from_str(&analysis_info)?;
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Ok(Some(CjsAnalysis {
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exports: analysis_info.exports,
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reexports: analysis_info.reexports,
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}))
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} else {
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Ok(None)
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}
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}
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pub fn set_cjs_analysis(
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&self,
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specifier: &str,
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source_hash: &str,
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cjs_analysis: &CjsAnalysis,
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) -> Result<(), AnyError> {
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let sql = "
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INSERT OR REPLACE INTO
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cjsanalysiscache (specifier, source_hash, data)
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VALUES
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(?1, ?2, ?3)";
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let mut stmt = self.conn.prepare_cached(sql)?;
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stmt.execute(params![
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specifier,
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&source_hash.to_string(),
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&serde_json::to_string(&CjsAnalysisData {
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// temporary clones until upgrading deno_ast
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exports: cjs_analysis.exports.clone(),
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reexports: cjs_analysis.reexports.clone(),
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})?,
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])?;
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Ok(())
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}
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pub fn get_esm_analysis(
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&self,
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specifier: &str,
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expected_source_hash: &str,
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) -> Result<Option<Vec<String>>, AnyError> {
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let query = "
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SELECT
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data
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FROM
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esmglobalscache
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WHERE
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specifier=?1
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AND source_hash=?2
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LIMIT 1";
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let mut stmt = self.conn.prepare_cached(query)?;
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let mut rows = stmt.query(params![specifier, &expected_source_hash])?;
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if let Some(row) = rows.next()? {
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let top_level_decls: String = row.get(0)?;
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let decls: Vec<String> = serde_json::from_str(&top_level_decls)?;
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Ok(Some(decls))
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} else {
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Ok(None)
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}
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}
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pub fn set_esm_analysis(
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&self,
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specifier: &str,
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source_hash: &str,
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top_level_decls: &Vec<String>,
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) -> Result<(), AnyError> {
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let sql = "
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INSERT OR REPLACE INTO
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esmglobalscache (specifier, source_hash, data)
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VALUES
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(?1, ?2, ?3)";
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let mut stmt = self.conn.prepare_cached(sql)?;
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stmt.execute(params![
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specifier,
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&source_hash.to_string(),
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&serde_json::to_string(top_level_decls)?,
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])?;
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Ok(())
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}
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}
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fn create_tables(conn: &Connection, cli_version: &str) -> Result<(), AnyError> {
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// INT doesn't store up to u64, so use TEXT for source_hash
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conn.execute(
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"CREATE TABLE IF NOT EXISTS cjsanalysiscache (
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specifier TEXT PRIMARY KEY,
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source_hash TEXT NOT NULL,
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data 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 UNIQUE INDEX IF NOT EXISTS cjsanalysiscacheidx
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ON cjsanalysiscache(specifier)",
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[],
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)?;
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conn.execute(
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"CREATE TABLE IF NOT EXISTS esmglobalscache (
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specifier TEXT PRIMARY KEY,
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source_hash TEXT NOT NULL,
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data 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 UNIQUE INDEX IF NOT EXISTS esmglobalscacheidx
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ON esmglobalscache(specifier)",
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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 cjsanalysiscache", params![])?;
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conn.execute("DELETE FROM esmglobalscache", 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 node_analysis_cache_general_use() {
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let conn = Connection::open_in_memory().unwrap();
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let cache =
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NodeAnalysisCacheInner::from_connection(conn, "1.0.0".to_string())
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.unwrap();
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assert!(cache.get_cjs_analysis("file.js", "2").unwrap().is_none());
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let cjs_analysis = CjsAnalysis {
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exports: vec!["export1".to_string()],
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reexports: vec!["re-export1".to_string()],
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};
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cache
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.set_cjs_analysis("file.js", "2", &cjs_analysis)
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.unwrap();
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assert!(cache.get_cjs_analysis("file.js", "3").unwrap().is_none()); // different hash
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let actual_cjs_analysis =
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cache.get_cjs_analysis("file.js", "2").unwrap().unwrap();
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assert_eq!(actual_cjs_analysis.exports, cjs_analysis.exports);
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assert_eq!(actual_cjs_analysis.reexports, cjs_analysis.reexports);
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assert!(cache.get_esm_analysis("file.js", "2").unwrap().is_none());
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let esm_analysis = vec!["esm1".to_string()];
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cache
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.set_esm_analysis("file.js", "2", &esm_analysis)
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.unwrap();
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assert!(cache.get_esm_analysis("file.js", "3").unwrap().is_none()); // different hash
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let actual_esm_analysis =
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cache.get_esm_analysis("file.js", "2").unwrap().unwrap();
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assert_eq!(actual_esm_analysis, esm_analysis);
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// adding when already exists should not cause issue
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cache
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.set_cjs_analysis("file.js", "2", &cjs_analysis)
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.unwrap();
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cache
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.set_esm_analysis("file.js", "2", &esm_analysis)
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.unwrap();
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// recreating with same cli version should still have it
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let conn = cache.conn;
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let cache =
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NodeAnalysisCacheInner::from_connection(conn, "1.0.0".to_string())
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.unwrap();
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let actual_analysis =
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cache.get_cjs_analysis("file.js", "2").unwrap().unwrap();
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assert_eq!(actual_analysis.exports, cjs_analysis.exports);
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assert_eq!(actual_analysis.reexports, cjs_analysis.reexports);
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let actual_esm_analysis =
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cache.get_esm_analysis("file.js", "2").unwrap().unwrap();
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assert_eq!(actual_esm_analysis, esm_analysis);
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// now changing the cli version should clear it
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let conn = cache.conn;
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let cache =
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NodeAnalysisCacheInner::from_connection(conn, "2.0.0".to_string())
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.unwrap();
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assert!(cache.get_cjs_analysis("file.js", "2").unwrap().is_none());
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assert!(cache.get_esm_analysis("file.js", "2").unwrap().is_none());
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}
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}
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