1 files changed, 67 insertions, 18 deletions

diff --git a/core/modules.rs b/core/modules.rs
index 817e1f25e..7b1e0c5a3 100644
--- a/core/modules.rs
+++ b/core/modules.rs
@@ -65,7 +65,7 @@ pub trait ModuleLoader {
     &self,
     specifier: &str,
     referrer: &str,
-    is_main: bool,
+    _is_main: bool,
   ) -> Result<ModuleSpecifier, ErrBox>;
 
   /// Given ModuleSpecifier, load its source code.
@@ -98,6 +98,31 @@ pub trait ModuleLoader {
   }
 }
 
+/// Placeholder structure used when creating
+/// isolate that doesn't support module loading.
+pub(crate) struct NoopModuleLoader;
+
+impl ModuleLoader for NoopModuleLoader {
+  fn resolve(
+    &self,
+    _specifier: &str,
+    _referrer: &str,
+    _is_main: bool,
+  ) -> Result<ModuleSpecifier, ErrBox> {
+    Err(ErrBox::error("Module loading is not supported"))
+  }
+
+  fn load(
+    &self,
+    _module_specifier: &ModuleSpecifier,
+    _maybe_referrer: Option<ModuleSpecifier>,
+    _is_dyn_import: bool,
+  ) -> Pin<Box<ModuleSourceFuture>> {
+    async { Err(ErrBox::error("Module loading is not supported")) }
+      .boxed_local()
+  }
+}
+
 #[derive(Debug, Eq, PartialEq)]
 enum Kind {
   Main,
@@ -520,9 +545,9 @@ impl fmt::Display for Deps {
 #[cfg(test)]
 mod tests {
   use super::*;
-  use crate::es_isolate::EsIsolate;
   use crate::js_check;
   use crate::BasicState;
+  use crate::CoreIsolate;
   use crate::StartupData;
   use futures::future::FutureExt;
   use std::error::Error;
@@ -700,8 +725,12 @@ mod tests {
   fn test_recursive_load() {
     let loader = MockLoader::new();
     let loads = loader.loads.clone();
-    let mut isolate =
-      EsIsolate::new(loader, BasicState::new(), StartupData::None, false);
+    let mut isolate = CoreIsolate::new_with_loader(
+      loader,
+      BasicState::new(),
+      StartupData::None,
+      false,
+    );
     let spec = ModuleSpecifier::resolve_url("file:///a.js").unwrap();
     let a_id_fut = isolate.load_module(&spec, None);
     let a_id = futures::executor::block_on(a_id_fut).expect("Failed to load");
@@ -718,7 +747,7 @@ mod tests {
       ]
     );
 
-    let state_rc = EsIsolate::state(&isolate);
+    let state_rc = CoreIsolate::state(&isolate);
     let state = state_rc.borrow();
     let modules = &state.modules;
     assert_eq!(modules.get_id("file:///a.js"), Some(a_id));
@@ -763,8 +792,12 @@ mod tests {
   fn test_circular_load() {
     let loader = MockLoader::new();
     let loads = loader.loads.clone();
-    let mut isolate =
-      EsIsolate::new(loader, BasicState::new(), StartupData::None, false);
+    let mut isolate = CoreIsolate::new_with_loader(
+      loader,
+      BasicState::new(),
+      StartupData::None,
+      false,
+    );
 
     let fut = async move {
       let spec = ModuleSpecifier::resolve_url("file:///circular1.js").unwrap();
@@ -783,7 +816,7 @@ mod tests {
         ]
       );
 
-      let state_rc = EsIsolate::state(&isolate);
+      let state_rc = CoreIsolate::state(&isolate);
       let state = state_rc.borrow();
       let modules = &state.modules;
 
@@ -837,8 +870,12 @@ mod tests {
   fn test_redirect_load() {
     let loader = MockLoader::new();
     let loads = loader.loads.clone();
-    let mut isolate =
-      EsIsolate::new(loader, BasicState::new(), StartupData::None, false);
+    let mut isolate = CoreIsolate::new_with_loader(
+      loader,
+      BasicState::new(),
+      StartupData::None,
+      false,
+    );
 
     let fut = async move {
       let spec = ModuleSpecifier::resolve_url("file:///redirect1.js").unwrap();
@@ -857,7 +894,7 @@ mod tests {
         ]
       );
 
-      let state_rc = EsIsolate::state(&isolate);
+      let state_rc = CoreIsolate::state(&isolate);
       let state = state_rc.borrow();
       let modules = &state.modules;
 
@@ -902,8 +939,12 @@ mod tests {
     run_in_task(|mut cx| {
       let loader = MockLoader::new();
       let loads = loader.loads.clone();
-      let mut isolate =
-        EsIsolate::new(loader, BasicState::new(), StartupData::None, false);
+      let mut isolate = CoreIsolate::new_with_loader(
+        loader,
+        BasicState::new(),
+        StartupData::None,
+        false,
+      );
       let spec = ModuleSpecifier::resolve_url("file:///main.js").unwrap();
       let mut recursive_load = isolate.load_module(&spec, None).boxed_local();
 
@@ -948,8 +989,12 @@ mod tests {
   fn loader_disappears_after_error() {
     run_in_task(|mut cx| {
       let loader = MockLoader::new();
-      let mut isolate =
-        EsIsolate::new(loader, BasicState::new(), StartupData::None, false);
+      let mut isolate = CoreIsolate::new_with_loader(
+        loader,
+        BasicState::new(),
+        StartupData::None,
+        false,
+      );
       let spec = ModuleSpecifier::resolve_url("file:///bad_import.js").unwrap();
       let mut load_fut = isolate.load_module(&spec, None).boxed_local();
       let result = load_fut.poll_unpin(&mut cx);
@@ -977,8 +1022,12 @@ mod tests {
   fn recursive_load_main_with_code() {
     let loader = MockLoader::new();
     let loads = loader.loads.clone();
-    let mut isolate =
-      EsIsolate::new(loader, BasicState::new(), StartupData::None, false);
+    let mut isolate = CoreIsolate::new_with_loader(
+      loader,
+      BasicState::new(),
+      StartupData::None,
+      false,
+    );
     // In default resolution code should be empty.
     // Instead we explicitly pass in our own code.
     // The behavior should be very similar to /a.js.
@@ -998,7 +1047,7 @@ mod tests {
       vec!["file:///b.js", "file:///c.js", "file:///d.js"]
     );
 
-    let state_rc = EsIsolate::state(&isolate);
+    let state_rc = CoreIsolate::state(&isolate);
     let state = state_rc.borrow();
     let modules = &state.modules;