Lack of intellisense when target_arch other than current machine's

Environment

• IntelliJ Rust plugin version: 0.2.118.2157-201
• IDE name and version: CLion 2020.1 EAP Build #CL-201.6251.14, built on March 11, 2020 Experimental macro resolution is enabled!

Problem description

I’d like to have code completion for js_sys::Object, and other conditionally disabled types somehow. Is there an option to set the target_arch somehow to something different than the current machine’s? js_ ✔️ js_sys js_sys::Re ✔️ js_sys::Reflect Even if the above are completed, then on ctrl+q they have no documentation, although ctrl+q on js_sys does show docs

Object:: ❌ empty nothing js_sys::Obj ❌ js_sys::Object JsValue::fr ✔️ JsValue::from_bool and many more This is a weird one: js_sys::Reflect::se ✔️ js_sys::Reflect::set Reflect::se ❌ Reflect::set

Steps to reproduce

#[cfg(target_arch = "wasm32")]
use {
	wasm_bindgen::{
		prelude::*,
		JsValue
	},
	js_sys::{
		Object,
		Reflect
	},
}
#[cfg(target_arch = "wasm32")]
#[cfg_attr(target_arch= "wasm32", wasm_bindgen)]
impl SomeStruct {
	#[wasm_bindgen]
	pub fn take(self) -> Object {
		let obj = Object::new();
		
	}
}

This has the same effect:

#[cfg(target_arch = "wasm32")]
#[wasm_bindgen]
impl SomeStruct {
...
}

[TimonPost]

This issue seems still relevant. It would be nice to just be able to pass a target to rust plugin instead of changing the build target.

[Miha-Rozina]

While the .cargo/config approach works, it does mean that anytime you want to change the target, you have to rebuild the whole project. It would still be great if we could just tell CLion for which target it should show intellisense without the need to fully rebuild the project.