1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
|
// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
use crate::import_map::ImportMap;
use crate::module_graph2::TypeLib;
use crate::permissions::Permissions;
use crate::program_state::ProgramState;
use deno_core::error::AnyError;
use deno_core::futures::future::FutureExt;
use deno_core::futures::Future;
use deno_core::ModuleLoadId;
use deno_core::ModuleLoader;
use deno_core::ModuleSpecifier;
use deno_core::OpState;
use std::cell::RefCell;
use std::pin::Pin;
use std::rc::Rc;
use std::str;
use std::sync::Arc;
pub struct CliModuleLoader {
/// When flags contains a `.import_map_path` option, the content of the
/// import map file will be resolved and set.
pub import_map: Option<ImportMap>,
pub lib: TypeLib,
pub is_main: bool,
}
impl CliModuleLoader {
pub fn new(maybe_import_map: Option<ImportMap>) -> Rc<Self> {
Rc::new(CliModuleLoader {
import_map: maybe_import_map,
lib: TypeLib::DenoWindow,
is_main: true,
})
}
pub fn new_for_worker() -> Rc<Self> {
Rc::new(CliModuleLoader {
import_map: None,
lib: TypeLib::DenoWorker,
is_main: false,
})
}
}
impl ModuleLoader for CliModuleLoader {
fn resolve(
&self,
op_state: Rc<RefCell<OpState>>,
specifier: &str,
referrer: &str,
is_main: bool,
) -> Result<ModuleSpecifier, AnyError> {
let program_state = {
let state = op_state.borrow();
state.borrow::<Arc<ProgramState>>().clone()
};
// FIXME(bartlomieju): hacky way to provide compatibility with repl
let referrer = if referrer.is_empty() && program_state.flags.repl {
"<unknown>"
} else {
referrer
};
if !is_main {
if let Some(import_map) = &self.import_map {
let result = import_map.resolve(specifier, referrer)?;
if let Some(r) = result {
return Ok(r);
}
}
}
let module_specifier =
ModuleSpecifier::resolve_import(specifier, referrer)?;
Ok(module_specifier)
}
fn load(
&self,
op_state: Rc<RefCell<OpState>>,
module_specifier: &ModuleSpecifier,
maybe_referrer: Option<ModuleSpecifier>,
_is_dynamic: bool,
) -> Pin<Box<deno_core::ModuleSourceFuture>> {
let module_specifier = module_specifier.to_owned();
let module_url_specified = module_specifier.to_string();
let program_state = {
let state = op_state.borrow();
state.borrow::<Arc<ProgramState>>().clone()
};
// TODO(@kitsonk) this shouldn't be async
let fut = async move {
let compiled_module = program_state
.fetch_compiled_module(module_specifier, maybe_referrer)?;
Ok(deno_core::ModuleSource {
// Real module name, might be different from initial specifier
// due to redirections.
code: compiled_module.code,
module_url_specified,
module_url_found: compiled_module.name,
})
};
fut.boxed_local()
}
fn prepare_load(
&self,
op_state: Rc<RefCell<OpState>>,
_load_id: ModuleLoadId,
specifier: &ModuleSpecifier,
_maybe_referrer: Option<String>,
is_dynamic: bool,
) -> Pin<Box<dyn Future<Output = Result<(), AnyError>>>> {
let specifier = specifier.clone();
let maybe_import_map = self.import_map.clone();
let state = op_state.borrow();
// The permissions that should be applied to any dynamically imported module
let dynamic_permissions = state.borrow::<Permissions>().clone();
let program_state = state.borrow::<Arc<ProgramState>>().clone();
let lib = if program_state.flags.unstable {
if self.lib == TypeLib::DenoWindow {
TypeLib::UnstableDenoWindow
} else {
TypeLib::UnstableDenoWorker
}
} else {
self.lib.clone()
};
drop(state);
// TODO(bartlomieju): `prepare_module_load` should take `load_id` param
async move {
program_state
.prepare_module_load(
specifier,
lib,
dynamic_permissions,
is_dynamic,
maybe_import_map,
)
.await
}
.boxed_local()
}
}
|
