stub out v8::Module (#69)

src/lib.rs

@@ -16,6 +16,7 @@ mod handle_scope;
 mod isolate;
 mod local;
 mod locker;
+mod module;
 mod number;
 mod object;
 mod primitives;
@@ -42,6 +43,7 @@ pub use isolate::Isolate;
 pub use isolate::OwnedIsolate;
 pub use local::Local;
 pub use locker::Locker;
+pub use module::Module;
 pub use number::{Integer, Number};
 pub use object::Object;
 pub use primitives::*;

src/module.rs

@@ -0,0 +1,83 @@
+use crate::support::int;
+use crate::support::Opaque;
+use crate::Context;
+use crate::Local;
+use crate::Value;
+
+extern "C" {}
+
+/// The different states a module can be in.
+///
+/// This corresponds to the states used in ECMAScript except that "evaluated"
+/// is split into kEvaluated and kErrored, indicating success and failure,
+/// respectively.
+#[derive(Debug, PartialEq)]
+#[repr(C)]
+pub enum Status {
+  Uninstantiated,
+  Instantiating,
+  Instantiated,
+  Evaluating,
+  Evaluated,
+  Errored,
+}
+
+#[repr(C)]
+pub struct Module(Opaque);
+
+/// A compiled JavaScript module.
+impl Module {
+  /// Returns the module's current status.
+  pub fn get_status(&self) -> Status {
+    unimplemented!();
+  }
+
+  /// For a module in kErrored status, this returns the corresponding exception.
+  pub fn get_exception(&self) -> Local<Value> {
+    unimplemented!();
+  }
+
+  /// Returns the number of modules requested by this module.
+  pub fn get_module_requests_length(&self) -> int {
+    unimplemented!();
+  }
+
+  /// Returns the ith module specifier in this module.
+  /// i must be < self.get_module_requests_length() and >= 0.
+  pub fn get_module_request(&self, _i: usize) -> Local<String> {
+    unimplemented!();
+  }
+
+  /// Returns the identity hash for this object.
+  pub fn get_identity_hash(&self) -> int {
+    unimplemented!();
+  }
+
+  /// Instantiates the module and its dependencies.
+  ///
+  /// Returns an empty Maybe<bool> if an exception occurred during
+  /// instantiation. (In the case where the callback throws an exception, that
+  /// exception is propagated.)
+  #[must_use]
+  pub fn instantiate_module(
+    &self,
+    _context: Local<Context>,
+    _callback: Box<ResolveCallback>,
+  ) -> Option<bool> {
+    unimplemented!();
+  }
+
+  /// Evaluates the module and its dependencies.
+  ///
+  /// If status is kInstantiated, run the module's code. On success, set status
+  /// to kEvaluated and return the completion value; on failure, set status to
+  /// kErrored and propagate the thrown exception (which is then also available
+  /// via |GetException|).
+  #[must_use]
+  pub fn evaluate(&self, _context: Local<Context>) -> Option<Local<Value>> {
+    unimplemented!();
+  }
+}
+
+type ResolveCallback =
+  dyn Fn(Local<Context>, Local<String>, Local<Module>) -> Option<Local<Module>>;