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105 lines
2.7 KiB
Rust
105 lines
2.7 KiB
Rust
// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
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use crate::emit::TsTypeLib;
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use crate::proc_state::ProcState;
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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::ModuleLoader;
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use deno_core::ModuleSpecifier;
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use deno_core::OpState;
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use deno_runtime::permissions::Permissions;
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use std::cell::RefCell;
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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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pub struct CliModuleLoader {
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pub lib: TsTypeLib,
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/// The initial set of permissions used to resolve the static imports in the
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/// worker. They are decoupled from the worker (dynamic) permissions since
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/// read access errors must be raised based on the parent thread permissions.
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pub root_permissions: Permissions,
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pub ps: ProcState,
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}
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impl CliModuleLoader {
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pub fn new(ps: ProcState) -> Rc<Self> {
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Rc::new(CliModuleLoader {
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lib: ps.options.ts_type_lib_window(),
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root_permissions: Permissions::allow_all(),
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ps,
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})
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}
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pub fn new_for_worker(ps: ProcState, permissions: Permissions) -> Rc<Self> {
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Rc::new(CliModuleLoader {
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lib: ps.options.ts_type_lib_worker(),
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root_permissions: permissions,
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ps,
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})
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}
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}
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impl ModuleLoader for CliModuleLoader {
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fn resolve(
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&self,
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specifier: &str,
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referrer: &str,
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_is_main: bool,
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) -> Result<ModuleSpecifier, AnyError> {
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self.ps.resolve(specifier, referrer)
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}
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fn load(
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&self,
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module_specifier: &ModuleSpecifier,
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maybe_referrer: Option<ModuleSpecifier>,
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is_dynamic: bool,
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) -> Pin<Box<deno_core::ModuleSourceFuture>> {
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let module_specifier = module_specifier.clone();
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let ps = self.ps.clone();
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// NOTE: this block is async only because of `deno_core` interface
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// requirements; module was already loaded when constructing module graph
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// during call to `prepare_load`.
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async move { ps.load(module_specifier, maybe_referrer, is_dynamic) }
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.boxed_local()
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}
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fn prepare_load(
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&self,
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op_state: Rc<RefCell<OpState>>,
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specifier: &ModuleSpecifier,
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_maybe_referrer: Option<String>,
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is_dynamic: bool,
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) -> Pin<Box<dyn Future<Output = Result<(), AnyError>>>> {
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let specifier = specifier.clone();
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let ps = self.ps.clone();
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let state = op_state.borrow();
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let dynamic_permissions = state.borrow::<Permissions>().clone();
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let root_permissions = if is_dynamic {
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dynamic_permissions.clone()
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} else {
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self.root_permissions.clone()
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};
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let lib = self.lib;
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drop(state);
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async move {
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ps.prepare_module_load(
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vec![specifier],
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is_dynamic,
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lib,
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root_permissions,
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dynamic_permissions,
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false,
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)
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.await
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}
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.boxed_local()
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}
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}
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