Create Identifer to help keep track of plugin resources.

Cargo.lock

@@ -1972,6 +1972,7 @@ version = "0.1.0"
 dependencies = [
  "extism",
  "log",
+ "serde",
 ]
 
 [[package]]
@@ -2404,9 +2405,9 @@ checksum = "61697e0a1c7e512e84a621326239844a24d8207b4669b41bc18b32ea5cbf988b"
 
 [[package]]
 name = "serde"
-version = "1.0.205"
+version = "1.0.209"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e33aedb1a7135da52b7c21791455563facbbcc43d0f0f66165b42c21b3dfb150"
+checksum = "99fce0ffe7310761ca6bf9faf5115afbc19688edd00171d81b1bb1b116c63e09"
 dependencies = [
  "serde_derive",
 ]
@@ -2422,9 +2423,9 @@ dependencies = [
 
 [[package]]
 name = "serde_derive"
-version = "1.0.205"
+version = "1.0.209"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "692d6f5ac90220161d6774db30c662202721e64aed9058d2c394f451261420c1"
+checksum = "a5831b979fd7b5439637af1752d535ff49f4860c0f341d1baeb6faf0f4242170"
 dependencies = [
  "proc-macro2",
  "quote",

pumpkin-plugin/Cargo.toml

@@ -5,4 +5,5 @@ edition.workspace = true
 
 [dependencies]
 extism = "1.5.0"
-log.workspace = true
+log.workspace = true
+serde ={ version = "1.0.209", features = ["derive"] }

pumpkin-plugin/src/api/identifer.rs

@@ -0,0 +1,15 @@
+use extism::{convert::Msgpack, host_fn, FromBytes, ToBytes};
+use serde::{Deserialize, Serialize};
+
+/// Used to keep track of things created by plugins.
+/// This can include things like events, commands, etc.
+#[derive(Hash, PartialEq, Eq, ToBytes, FromBytes, Serialize, Deserialize)]
+#[encoding(Msgpack)]
+struct Identifier {
+    namespace: String,
+    path: String,
+}
+
+host_fn!(new(namespace: String, path: String) -> Result<Identifier, _> {
+    Ok(Identifier { namespace, path })
+});

pumpkin-plugin/src/api/mod.rs

@@ -0,0 +1 @@
+mod identifer;

pumpkin-plugin/src/lib.rs

@@ -1,3 +1,5 @@
+mod api;
+
 use std::path::Path;
 
 use extism::{Manifest, Plugin, Wasm};