mirror of
https://github.com/denoland/deno.git
synced 2024-11-29 16:30:56 -05:00
b3d7df5535
This PR enables V8 code cache for ES modules and for `require` scripts through `op_eval_context`. Code cache artifacts are transparently stored and fetched using sqlite db and are passed to V8. `--no-code-cache` can be used to disable. --------- Co-authored-by: Bartek Iwańczuk <biwanczuk@gmail.com>
811 lines
24 KiB
Rust
811 lines
24 KiB
Rust
// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
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use crate::args::jsr_url;
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use crate::args::CliOptions;
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use crate::args::DenoSubcommand;
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use crate::args::TsTypeLib;
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use crate::cache::CodeCache;
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use crate::cache::ModuleInfoCache;
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use crate::cache::ParsedSourceCache;
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use crate::emit::Emitter;
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use crate::graph_util::graph_lock_or_exit;
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use crate::graph_util::CreateGraphOptions;
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use crate::graph_util::ModuleGraphBuilder;
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use crate::graph_util::ModuleGraphContainer;
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use crate::node;
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use crate::resolver::CliGraphResolver;
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use crate::resolver::CliNodeResolver;
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use crate::resolver::ModuleCodeStringSource;
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use crate::resolver::NpmModuleLoader;
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use crate::tools::check;
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use crate::tools::check::TypeChecker;
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use crate::util::progress_bar::ProgressBar;
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use crate::util::text_encoding::code_without_source_map;
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use crate::util::text_encoding::source_map_from_code;
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use crate::worker::ModuleLoaderFactory;
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use deno_ast::MediaType;
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use deno_core::anyhow::anyhow;
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use deno_core::anyhow::bail;
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use deno_core::anyhow::Context;
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use deno_core::error::custom_error;
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use deno_core::error::generic_error;
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use deno_core::error::AnyError;
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use deno_core::futures::future::FutureExt;
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use deno_core::futures::Future;
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use deno_core::parking_lot::Mutex;
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use deno_core::resolve_url;
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use deno_core::resolve_url_or_path;
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use deno_core::ModuleCodeString;
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use deno_core::ModuleLoader;
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use deno_core::ModuleSource;
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use deno_core::ModuleSourceCode;
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use deno_core::ModuleSpecifier;
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use deno_core::ModuleType;
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use deno_core::RequestedModuleType;
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use deno_core::ResolutionKind;
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use deno_core::SourceMapGetter;
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use deno_graph::source::ResolutionMode;
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use deno_graph::source::Resolver;
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use deno_graph::JsModule;
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use deno_graph::JsonModule;
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use deno_graph::Module;
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use deno_graph::Resolution;
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use deno_lockfile::Lockfile;
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use deno_runtime::code_cache;
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use deno_runtime::deno_node::NodeResolutionMode;
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use deno_runtime::fs_util::code_timestamp;
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use deno_runtime::permissions::PermissionsContainer;
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use deno_semver::npm::NpmPackageReqReference;
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use deno_terminal::colors;
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use std::borrow::Cow;
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use std::pin::Pin;
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use std::rc::Rc;
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use std::str;
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use std::sync::Arc;
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pub struct ModuleLoadPreparer {
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options: Arc<CliOptions>,
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graph_container: Arc<ModuleGraphContainer>,
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lockfile: Option<Arc<Mutex<Lockfile>>>,
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module_graph_builder: Arc<ModuleGraphBuilder>,
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progress_bar: ProgressBar,
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type_checker: Arc<TypeChecker>,
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}
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impl ModuleLoadPreparer {
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#[allow(clippy::too_many_arguments)]
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pub fn new(
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options: Arc<CliOptions>,
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graph_container: Arc<ModuleGraphContainer>,
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lockfile: Option<Arc<Mutex<Lockfile>>>,
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module_graph_builder: Arc<ModuleGraphBuilder>,
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progress_bar: ProgressBar,
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type_checker: Arc<TypeChecker>,
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) -> Self {
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Self {
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options,
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graph_container,
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lockfile,
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module_graph_builder,
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progress_bar,
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type_checker,
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}
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}
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/// This method must be called for a module or a static importer of that
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/// module before attempting to `load()` it from a `JsRuntime`. It will
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/// populate the graph data in memory with the necessary source code, write
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/// emits where necessary or report any module graph / type checking errors.
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#[allow(clippy::too_many_arguments)]
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pub async fn prepare_module_load(
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&self,
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roots: Vec<ModuleSpecifier>,
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is_dynamic: bool,
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lib: TsTypeLib,
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permissions: PermissionsContainer,
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) -> Result<(), AnyError> {
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log::debug!("Preparing module load.");
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let _pb_clear_guard = self.progress_bar.clear_guard();
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let mut cache = self.module_graph_builder.create_fetch_cacher(permissions);
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log::debug!("Creating module graph.");
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let mut graph_update_permit =
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self.graph_container.acquire_update_permit().await;
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let graph = graph_update_permit.graph_mut();
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let has_type_checked = !graph.roots.is_empty();
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self
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.module_graph_builder
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.build_graph_with_npm_resolution(
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graph,
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CreateGraphOptions {
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is_dynamic,
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graph_kind: graph.graph_kind(),
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roots: roots.clone(),
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loader: Some(&mut cache),
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},
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)
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.await?;
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self.module_graph_builder.graph_roots_valid(graph, &roots)?;
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// If there is a lockfile...
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if let Some(lockfile) = &self.lockfile {
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let mut lockfile = lockfile.lock();
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// validate the integrity of all the modules
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graph_lock_or_exit(graph, &mut lockfile);
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// update it with anything new
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lockfile.write().context("Failed writing lockfile.")?;
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}
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// save the graph and get a reference to the new graph
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let graph = graph_update_permit.commit();
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drop(_pb_clear_guard);
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// type check if necessary
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if self.options.type_check_mode().is_true() && !has_type_checked {
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self
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.type_checker
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.check(
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// todo(perf): since this is only done the first time the graph is
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// created, we could avoid the clone of the graph here by providing
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// the actual graph on the first run and then getting the Arc<ModuleGraph>
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// back from the return value.
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(*graph).clone(),
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check::CheckOptions {
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build_fast_check_graph: true,
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lib,
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log_ignored_options: false,
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reload: self.options.reload_flag(),
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type_check_mode: self.options.type_check_mode(),
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},
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)
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.await?;
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}
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log::debug!("Prepared module load.");
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Ok(())
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}
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/// Helper around prepare_module_load that loads and type checks
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/// the provided files.
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pub async fn load_and_type_check_files(
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&self,
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files: &[String],
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) -> Result<(), AnyError> {
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let lib = self.options.ts_type_lib_window();
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let specifiers = self.collect_specifiers(files)?;
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if specifiers.is_empty() {
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log::warn!("{} No matching files found.", colors::yellow("Warning"));
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}
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self
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.prepare_module_load(
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specifiers,
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false,
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lib,
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PermissionsContainer::allow_all(),
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)
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.await
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}
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fn collect_specifiers(
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&self,
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files: &[String],
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) -> Result<Vec<ModuleSpecifier>, AnyError> {
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let excludes = self.options.resolve_config_excludes()?;
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Ok(
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files
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.iter()
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.filter_map(|file| {
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let file_url =
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resolve_url_or_path(file, self.options.initial_cwd()).ok()?;
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if file_url.scheme() != "file" {
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return Some(file_url);
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}
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// ignore local files that match any of files listed in `exclude` option
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let file_path = file_url.to_file_path().ok()?;
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if excludes.matches_path(&file_path) {
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None
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} else {
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Some(file_url)
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}
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})
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.collect::<Vec<_>>(),
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)
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}
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}
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struct PreparedModuleLoader {
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emitter: Arc<Emitter>,
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graph_container: Arc<ModuleGraphContainer>,
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parsed_source_cache: Arc<ParsedSourceCache>,
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}
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impl PreparedModuleLoader {
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pub fn load_prepared_module(
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&self,
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specifier: &ModuleSpecifier,
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maybe_referrer: Option<&ModuleSpecifier>,
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) -> Result<ModuleCodeStringSource, AnyError> {
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if specifier.scheme() == "node" {
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unreachable!(); // Node built-in modules should be handled internally.
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}
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let graph = self.graph_container.graph();
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match graph.get(specifier) {
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Some(deno_graph::Module::Json(JsonModule {
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source,
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media_type,
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specifier,
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..
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})) => Ok(ModuleCodeStringSource {
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code: source.clone().into(),
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found_url: specifier.clone(),
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media_type: *media_type,
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}),
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Some(deno_graph::Module::Js(JsModule {
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source,
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media_type,
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specifier,
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..
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})) => {
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let code: ModuleCodeString = match media_type {
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MediaType::JavaScript
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| MediaType::Unknown
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| MediaType::Cjs
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| MediaType::Mjs
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| MediaType::Json => source.clone().into(),
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MediaType::Dts | MediaType::Dcts | MediaType::Dmts => {
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Default::default()
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}
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MediaType::TypeScript
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| MediaType::Mts
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| MediaType::Cts
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| MediaType::Jsx
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| MediaType::Tsx => {
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// get emit text
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self
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.emitter
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.emit_parsed_source(specifier, *media_type, source)?
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}
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MediaType::TsBuildInfo | MediaType::Wasm | MediaType::SourceMap => {
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panic!("Unexpected media type {media_type} for {specifier}")
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}
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};
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// at this point, we no longer need the parsed source in memory, so free it
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self.parsed_source_cache.free(specifier);
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Ok(ModuleCodeStringSource {
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code,
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found_url: specifier.clone(),
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media_type: *media_type,
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})
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}
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Some(
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deno_graph::Module::External(_)
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| deno_graph::Module::Node(_)
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| deno_graph::Module::Npm(_),
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)
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| None => {
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let mut msg = format!("Loading unprepared module: {specifier}");
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if let Some(referrer) = maybe_referrer {
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msg = format!("{}, imported from: {}", msg, referrer.as_str());
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}
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Err(anyhow!(msg))
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}
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}
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}
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}
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struct SharedCliModuleLoaderState {
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lib_window: TsTypeLib,
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lib_worker: TsTypeLib,
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is_inspecting: bool,
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is_repl: bool,
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graph_container: Arc<ModuleGraphContainer>,
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module_load_preparer: Arc<ModuleLoadPreparer>,
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prepared_module_loader: PreparedModuleLoader,
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resolver: Arc<CliGraphResolver>,
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node_resolver: Arc<CliNodeResolver>,
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npm_module_loader: NpmModuleLoader,
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code_cache: Option<Arc<CodeCache>>,
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module_info_cache: Arc<ModuleInfoCache>,
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}
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pub struct CliModuleLoaderFactory {
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shared: Arc<SharedCliModuleLoaderState>,
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}
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impl CliModuleLoaderFactory {
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#[allow(clippy::too_many_arguments)]
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pub fn new(
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options: &CliOptions,
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emitter: Arc<Emitter>,
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graph_container: Arc<ModuleGraphContainer>,
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module_load_preparer: Arc<ModuleLoadPreparer>,
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parsed_source_cache: Arc<ParsedSourceCache>,
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resolver: Arc<CliGraphResolver>,
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node_resolver: Arc<CliNodeResolver>,
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npm_module_loader: NpmModuleLoader,
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code_cache: Option<Arc<CodeCache>>,
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module_info_cache: Arc<ModuleInfoCache>,
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) -> Self {
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Self {
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shared: Arc::new(SharedCliModuleLoaderState {
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lib_window: options.ts_type_lib_window(),
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lib_worker: options.ts_type_lib_worker(),
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is_inspecting: options.is_inspecting(),
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is_repl: matches!(
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options.sub_command(),
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DenoSubcommand::Repl(_) | DenoSubcommand::Jupyter(_)
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),
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prepared_module_loader: PreparedModuleLoader {
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emitter,
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graph_container: graph_container.clone(),
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parsed_source_cache,
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},
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graph_container,
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module_load_preparer,
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resolver,
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node_resolver,
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npm_module_loader,
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code_cache,
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module_info_cache,
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}),
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}
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}
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fn create_with_lib(
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&self,
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lib: TsTypeLib,
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root_permissions: PermissionsContainer,
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dynamic_permissions: PermissionsContainer,
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) -> Rc<dyn ModuleLoader> {
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Rc::new(CliModuleLoader {
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lib,
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root_permissions,
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dynamic_permissions,
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shared: self.shared.clone(),
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})
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}
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}
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impl ModuleLoaderFactory for CliModuleLoaderFactory {
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fn create_for_main(
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&self,
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root_permissions: PermissionsContainer,
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dynamic_permissions: PermissionsContainer,
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) -> Rc<dyn ModuleLoader> {
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self.create_with_lib(
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self.shared.lib_window,
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root_permissions,
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dynamic_permissions,
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)
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}
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fn create_for_worker(
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&self,
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root_permissions: PermissionsContainer,
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dynamic_permissions: PermissionsContainer,
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) -> Rc<dyn ModuleLoader> {
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self.create_with_lib(
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self.shared.lib_worker,
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root_permissions,
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dynamic_permissions,
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)
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}
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fn create_source_map_getter(&self) -> Option<Rc<dyn SourceMapGetter>> {
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Some(Rc::new(CliSourceMapGetter {
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shared: self.shared.clone(),
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}))
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}
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}
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struct CliModuleLoader {
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lib: TsTypeLib,
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/// The initial set of permissions used to resolve the static imports in the
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/// worker. These are "allow all" for main worker, and parent thread
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/// permissions for Web Worker.
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root_permissions: PermissionsContainer,
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/// Permissions used to resolve dynamic imports, these get passed as
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/// "root permissions" for Web Worker.
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dynamic_permissions: PermissionsContainer,
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shared: Arc<SharedCliModuleLoaderState>,
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}
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impl CliModuleLoader {
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fn load_sync(
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&self,
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specifier: &ModuleSpecifier,
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maybe_referrer: Option<&ModuleSpecifier>,
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is_dynamic: bool,
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requested_module_type: RequestedModuleType,
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) -> Result<ModuleSource, AnyError> {
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let permissions = if is_dynamic {
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&self.dynamic_permissions
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} else {
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&self.root_permissions
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};
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let code_source = if let Some(result) = self
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.shared
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.npm_module_loader
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.load_sync_if_in_npm_package(specifier, maybe_referrer, permissions)
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{
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result?
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} else {
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self
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.shared
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.prepared_module_loader
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.load_prepared_module(specifier, maybe_referrer)?
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};
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let code = if self.shared.is_inspecting {
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// we need the code with the source map in order for
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// it to work with --inspect or --inspect-brk
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code_source.code
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} else {
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// reduce memory and throw away the source map
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// because we don't need it
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code_without_source_map(code_source.code)
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};
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let module_type = match code_source.media_type {
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MediaType::Json => ModuleType::Json,
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_ => ModuleType::JavaScript,
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};
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|
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// If we loaded a JSON file, but the "requested_module_type" (that is computed from
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// import attributes) is not JSON we need to fail.
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if module_type == ModuleType::Json
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&& requested_module_type != RequestedModuleType::Json
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{
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return Err(generic_error("Attempted to load JSON module without specifying \"type\": \"json\" attribute in the import statement."));
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}
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|
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let code_cache = if module_type == ModuleType::JavaScript {
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self.shared.code_cache.as_ref().and_then(|cache| {
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let code_hash = self
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.get_code_hash_or_timestamp(specifier, code_source.media_type)
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.ok()
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.flatten();
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if let Some(code_hash) = code_hash {
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cache
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.get_sync(
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specifier.as_str(),
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code_cache::CodeCacheType::EsModule,
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&code_hash,
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)
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.map(Cow::from)
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.inspect(|_| {
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// This log line is also used by tests.
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log::debug!(
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"V8 code cache hit for ES module: {specifier}, [{code_hash:?}]"
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);
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})
|
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} else {
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None
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}
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})
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} else {
|
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None
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};
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|
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Ok(ModuleSource::new_with_redirect(
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module_type,
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ModuleSourceCode::String(code),
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specifier,
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&code_source.found_url,
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code_cache,
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))
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}
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|
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fn resolve_referrer(
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&self,
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referrer: &str,
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) -> Result<ModuleSpecifier, AnyError> {
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// TODO(bartlomieju): ideally we shouldn't need to call `current_dir()` on each
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// call - maybe it should be caller's responsibility to pass it as an arg?
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let cwd = std::env::current_dir().context("Unable to get CWD")?;
|
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if referrer.is_empty() && self.shared.is_repl {
|
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// FIXME(bartlomieju): this is a hacky way to provide compatibility with REPL
|
|
// and `Deno.core.evalContext` API. Ideally we should always have a referrer filled
|
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// but sadly that's not the case due to missing APIs in V8.
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deno_core::resolve_path("./$deno$repl.ts", &cwd).map_err(|e| e.into())
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} else {
|
|
deno_core::resolve_url_or_path(referrer, &cwd).map_err(|e| e.into())
|
|
}
|
|
}
|
|
|
|
fn inner_resolve(
|
|
&self,
|
|
specifier: &str,
|
|
referrer: &ModuleSpecifier,
|
|
kind: ResolutionKind,
|
|
) -> Result<ModuleSpecifier, AnyError> {
|
|
let permissions = if matches!(kind, ResolutionKind::DynamicImport) {
|
|
&self.dynamic_permissions
|
|
} else {
|
|
&self.root_permissions
|
|
};
|
|
|
|
if let Some(result) = self.shared.node_resolver.resolve_if_in_npm_package(
|
|
specifier,
|
|
referrer,
|
|
NodeResolutionMode::Execution,
|
|
permissions,
|
|
) {
|
|
return match result? {
|
|
Some(res) => Ok(res.into_url()),
|
|
None => Err(generic_error("not found")),
|
|
};
|
|
}
|
|
|
|
let graph = self.shared.graph_container.graph();
|
|
let maybe_resolved = match graph.get(referrer) {
|
|
Some(Module::Js(module)) => {
|
|
module.dependencies.get(specifier).map(|d| &d.maybe_code)
|
|
}
|
|
_ => None,
|
|
};
|
|
|
|
match maybe_resolved {
|
|
Some(Resolution::Ok(resolved)) => {
|
|
let specifier = &resolved.specifier;
|
|
let specifier = match graph.get(specifier) {
|
|
Some(Module::Npm(module)) => {
|
|
let package_folder = self
|
|
.shared
|
|
.node_resolver
|
|
.npm_resolver
|
|
.as_managed()
|
|
.unwrap() // byonm won't create a Module::Npm
|
|
.resolve_pkg_folder_from_deno_module(module.nv_reference.nv())?;
|
|
let maybe_resolution = self
|
|
.shared
|
|
.node_resolver
|
|
.resolve_package_sub_path_from_deno_module(
|
|
&package_folder,
|
|
module.nv_reference.sub_path(),
|
|
referrer,
|
|
NodeResolutionMode::Execution,
|
|
permissions,
|
|
)
|
|
.with_context(|| {
|
|
format!("Could not resolve '{}'.", module.nv_reference)
|
|
})?;
|
|
match maybe_resolution {
|
|
Some(res) => res.into_url(),
|
|
None => return Err(generic_error("not found")),
|
|
}
|
|
}
|
|
Some(Module::Node(module)) => module.specifier.clone(),
|
|
Some(Module::Js(module)) => module.specifier.clone(),
|
|
Some(Module::Json(module)) => module.specifier.clone(),
|
|
Some(Module::External(module)) => {
|
|
node::resolve_specifier_into_node_modules(&module.specifier)
|
|
}
|
|
None => specifier.clone(),
|
|
};
|
|
return Ok(specifier);
|
|
}
|
|
Some(Resolution::Err(err)) => {
|
|
return Err(custom_error(
|
|
"TypeError",
|
|
format!("{}\n", err.to_string_with_range()),
|
|
))
|
|
}
|
|
Some(Resolution::None) | None => {}
|
|
}
|
|
|
|
// FIXME(bartlomieju): this is another hack way to provide NPM specifier
|
|
// support in REPL. This should be fixed.
|
|
let resolution = self.shared.resolver.resolve(
|
|
specifier,
|
|
&deno_graph::Range {
|
|
specifier: referrer.clone(),
|
|
start: deno_graph::Position::zeroed(),
|
|
end: deno_graph::Position::zeroed(),
|
|
},
|
|
ResolutionMode::Execution,
|
|
);
|
|
|
|
if self.shared.is_repl {
|
|
let specifier = resolution
|
|
.as_ref()
|
|
.ok()
|
|
.map(Cow::Borrowed)
|
|
.or_else(|| ModuleSpecifier::parse(specifier).ok().map(Cow::Owned));
|
|
if let Some(specifier) = specifier {
|
|
if let Ok(reference) =
|
|
NpmPackageReqReference::from_specifier(&specifier)
|
|
{
|
|
return self
|
|
.shared
|
|
.node_resolver
|
|
.resolve_req_reference(
|
|
&reference,
|
|
permissions,
|
|
referrer,
|
|
NodeResolutionMode::Execution,
|
|
)
|
|
.map(|res| res.into_url());
|
|
}
|
|
}
|
|
}
|
|
|
|
resolution.map_err(|err| err.into())
|
|
}
|
|
|
|
fn get_code_hash_or_timestamp(
|
|
&self,
|
|
specifier: &ModuleSpecifier,
|
|
media_type: MediaType,
|
|
) -> Result<Option<String>, AnyError> {
|
|
let hash = self
|
|
.shared
|
|
.module_info_cache
|
|
.get_module_source_hash(specifier, media_type)?;
|
|
if let Some(hash) = hash {
|
|
return Ok(Some(hash.into()));
|
|
}
|
|
|
|
// Use the modified timestamp from the local file system if we don't have a hash.
|
|
let timestamp = code_timestamp(specifier.as_str())
|
|
.map(|timestamp| timestamp.to_string())?;
|
|
Ok(Some(timestamp))
|
|
}
|
|
}
|
|
|
|
impl ModuleLoader for CliModuleLoader {
|
|
fn resolve(
|
|
&self,
|
|
specifier: &str,
|
|
referrer: &str,
|
|
kind: ResolutionKind,
|
|
) -> Result<ModuleSpecifier, AnyError> {
|
|
fn ensure_not_jsr_non_jsr_remote_import(
|
|
specifier: &ModuleSpecifier,
|
|
referrer: &ModuleSpecifier,
|
|
) -> Result<(), AnyError> {
|
|
if referrer.as_str().starts_with(jsr_url().as_str())
|
|
&& !specifier.as_str().starts_with(jsr_url().as_str())
|
|
&& matches!(specifier.scheme(), "http" | "https")
|
|
{
|
|
bail!("Importing {} blocked. JSR packages cannot import non-JSR remote modules for security reasons.", specifier);
|
|
}
|
|
Ok(())
|
|
}
|
|
|
|
let referrer = self.resolve_referrer(referrer)?;
|
|
let specifier = self.inner_resolve(specifier, &referrer, kind)?;
|
|
ensure_not_jsr_non_jsr_remote_import(&specifier, &referrer)?;
|
|
Ok(specifier)
|
|
}
|
|
|
|
fn load(
|
|
&self,
|
|
specifier: &ModuleSpecifier,
|
|
maybe_referrer: Option<&ModuleSpecifier>,
|
|
is_dynamic: bool,
|
|
requested_module_type: RequestedModuleType,
|
|
) -> deno_core::ModuleLoadResponse {
|
|
// NOTE: this block is async only because of `deno_core` interface
|
|
// requirements; module was already loaded when constructing module graph
|
|
// during call to `prepare_load` so we can load it synchronously.
|
|
deno_core::ModuleLoadResponse::Sync(self.load_sync(
|
|
specifier,
|
|
maybe_referrer,
|
|
is_dynamic,
|
|
requested_module_type,
|
|
))
|
|
}
|
|
|
|
fn prepare_load(
|
|
&self,
|
|
specifier: &ModuleSpecifier,
|
|
_maybe_referrer: Option<String>,
|
|
is_dynamic: bool,
|
|
) -> Pin<Box<dyn Future<Output = Result<(), AnyError>>>> {
|
|
if let Some(result) =
|
|
self.shared.npm_module_loader.maybe_prepare_load(specifier)
|
|
{
|
|
return Box::pin(deno_core::futures::future::ready(result));
|
|
}
|
|
|
|
let specifier = specifier.clone();
|
|
let module_load_preparer = self.shared.module_load_preparer.clone();
|
|
|
|
let root_permissions = if is_dynamic {
|
|
self.dynamic_permissions.clone()
|
|
} else {
|
|
self.root_permissions.clone()
|
|
};
|
|
let lib = self.lib;
|
|
|
|
async move {
|
|
module_load_preparer
|
|
.prepare_module_load(vec![specifier], is_dynamic, lib, root_permissions)
|
|
.await
|
|
}
|
|
.boxed_local()
|
|
}
|
|
|
|
fn code_cache_ready(
|
|
&self,
|
|
specifier: &ModuleSpecifier,
|
|
code_cache: &[u8],
|
|
) -> Pin<Box<dyn Future<Output = ()>>> {
|
|
if let Some(cache) = self.shared.code_cache.as_ref() {
|
|
let media_type = MediaType::from_specifier(specifier);
|
|
let code_hash = self
|
|
.get_code_hash_or_timestamp(specifier, media_type)
|
|
.ok()
|
|
.flatten();
|
|
if let Some(code_hash) = code_hash {
|
|
// This log line is also used by tests.
|
|
log::debug!(
|
|
"Updating V8 code cache for ES module: {specifier}, [{code_hash:?}]"
|
|
);
|
|
cache.set_sync(
|
|
specifier.as_str(),
|
|
code_cache::CodeCacheType::EsModule,
|
|
&code_hash,
|
|
code_cache,
|
|
);
|
|
}
|
|
}
|
|
async {}.boxed_local()
|
|
}
|
|
}
|
|
|
|
struct CliSourceMapGetter {
|
|
shared: Arc<SharedCliModuleLoaderState>,
|
|
}
|
|
|
|
impl SourceMapGetter for CliSourceMapGetter {
|
|
fn get_source_map(&self, file_name: &str) -> Option<Vec<u8>> {
|
|
let specifier = resolve_url(file_name).ok()?;
|
|
match specifier.scheme() {
|
|
// we should only be looking for emits for schemes that denote external
|
|
// modules, which the disk_cache supports
|
|
"wasm" | "file" | "http" | "https" | "data" | "blob" => (),
|
|
_ => return None,
|
|
}
|
|
let source = self
|
|
.shared
|
|
.prepared_module_loader
|
|
.load_prepared_module(&specifier, None)
|
|
.ok()?;
|
|
source_map_from_code(&source.code)
|
|
}
|
|
|
|
fn get_source_line(
|
|
&self,
|
|
file_name: &str,
|
|
line_number: usize,
|
|
) -> Option<String> {
|
|
let graph = self.shared.graph_container.graph();
|
|
let code = match graph.get(&resolve_url(file_name).ok()?) {
|
|
Some(deno_graph::Module::Js(module)) => &module.source,
|
|
Some(deno_graph::Module::Json(module)) => &module.source,
|
|
_ => return None,
|
|
};
|
|
// Do NOT use .lines(): it skips the terminating empty line.
|
|
// (due to internally using_terminator() instead of .split())
|
|
let lines: Vec<&str> = code.split('\n').collect();
|
|
if line_number >= lines.len() {
|
|
Some(format!(
|
|
"{} Couldn't format source line: Line {} is out of bounds (source may have changed at runtime)",
|
|
crate::colors::yellow("Warning"), line_number + 1,
|
|
))
|
|
} else {
|
|
Some(lines[line_number].to_string())
|
|
}
|
|
}
|
|
}
|