feat: Start implementing loupe::MemoryUsage on wasmer::Module.

lib/vm/src/memory.rs

@@ -7,6 +7,8 @@
 
 use crate::mmap::Mmap;
 use crate::vmcontext::VMMemoryDefinition;
+use loupe::MemoryUsage;
+use loupe_derive::MemoryUsage;
 use more_asserts::assert_ge;
 use serde::{Deserialize, Serialize};
 use std::borrow::BorrowMut;
@@ -61,7 +63,7 @@ pub enum MemoryError {
 }
 
 /// Implementation styles for WebAssembly linear memory.
-#[derive(Debug, Clone, PartialEq, Eq, Hash, Serialize, Deserialize)]
+#[derive(Debug, Clone, PartialEq, Eq, Hash, Serialize, Deserialize, MemoryUsage)]
 pub enum MemoryStyle {
     /// The actual memory can be resized and moved.
     Dynamic {
@@ -96,7 +98,7 @@ impl MemoryStyle {
 }
 
 /// Trait for implementing Wasm Memory used by Wasmer.
-pub trait Memory: fmt::Debug + Send + Sync {
+pub trait Memory: fmt::Debug + Send + Sync + MemoryUsage {
     /// Returns the memory type for this memory.
     fn ty(&self) -> &MemoryType;
 
@@ -116,7 +118,7 @@ pub trait Memory: fmt::Debug + Send + Sync {
 }
 
 /// A linear memory instance.
-#[derive(Debug)]
+#[derive(Debug, MemoryUsage)]
 pub struct LinearMemory {
     // The underlying allocation.
     mmap: Mutex<WasmMmap>,
@@ -144,7 +146,7 @@ pub struct LinearMemory {
 
 /// A type to help manage who is responsible for the backing memory of them
 /// `VMMemoryDefinition`.
-#[derive(Debug)]
+#[derive(Debug, MemoryUsage)]
 enum VMMemoryDefinitionOwnership {
     /// The `VMMemoryDefinition` is owned by the `Instance` and we should use
     /// its memory. This is how a local memory that's exported should be stored.
@@ -167,7 +169,7 @@ unsafe impl Send for LinearMemory {}
 /// This is correct because all internal mutability is protected by a mutex.
 unsafe impl Sync for LinearMemory {}
 
-#[derive(Debug)]
+#[derive(Debug, MemoryUsage)]
 struct WasmMmap {
     // Our OS allocation of mmap'd memory.
     alloc: Mmap,