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// Copyright 2021 Parity Technologies
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

#[derive(Clone, Debug)]
pub struct Unimplemented;
pub use Unimplemented as Error;

#[cfg(feature = "std")]
impl std::fmt::Display for Unimplemented {
	fn fmt(&self, fmt: &mut std::fmt::Formatter) -> std::fmt::Result {
		fmt.write_str("unimplemented")
	}
}

#[derive(Clone)]
pub struct MemoryAllocationTracker {}

impl MemoryAllocationTracker {
	pub fn new() -> Result<Self, Error> {
		Err(Error)
	}

	pub fn snapshot(&self) -> Result<crate::MemoryAllocationSnapshot, Error> {
		unimplemented!();
	}
}