From 6ab99329b2cf60a7237e4c331ce4e5478ffbc2ad Mon Sep 17 00:00:00 2001
From: Simon Gardling <titaniumtown@gmail.com>
Date: Wed, 23 Feb 2022 09:56:44 -0500
Subject: [PATCH] tracing-wasm and init function

---
 Cargo.toml   |  1 +
 src/lib.rs   | 20 +++++++++++++++++---
 www/index.js |  1 -
 3 files changed, 18 insertions(+), 4 deletions(-)

diff --git a/Cargo.toml b/Cargo.toml
index b2e7896..bb73b8a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -20,3 +20,4 @@ wee_alloc = "0.4.5"
 web-sys = { version = "0.3.56", features = ["HtmlCanvasElement"] }
 meval = { git = "https://github.com/Titaniumtown/meval-rs.git" }
 console_error_panic_hook = "0.1.7"
+tracing-wasm = "0.2.1"
\ No newline at end of file
diff --git a/src/lib.rs b/src/lib.rs
index df6a9ba..bdb24a4 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -21,6 +21,23 @@ extern "C" {
     fn log(s: &str);
 }
 
+#[wasm_bindgen(start)]
+pub fn init() {
+    log("Initializing...");
+
+    // See performance in browser profiler!
+    log("Initializing tracing_wasm...");
+    tracing_wasm::set_as_global_default();
+    log("Initialized tracing_wasm!");
+
+    // Used in order to hook into `panic!()` to log in the browser's console
+    log("Initializing console_error_panic_hook...");
+    panic::set_hook(Box::new(console_error_panic_hook::hook));
+    log("Initialized console_error_panic_hook!");
+
+    log("Finished initializing!");
+}
+
 // Manages Chart generation and caching of values
 #[wasm_bindgen]
 pub struct ChartManager {
@@ -54,9 +71,6 @@ impl ChartManager {
         }
     }
 
-    // Used in order to hook into `panic!()` to log in the browser's console
-    pub fn init_panic_hook() { panic::set_hook(Box::new(console_error_panic_hook::hook)); }
-
     // Tests function to make sure it's able to be parsed. Returns the string of the Error produced, or an empty string if it runs successfully.
     pub fn test_func(function_string: String) -> String {
         // Factorials do not work, and it would be really difficult to make them work
diff --git a/www/index.js b/www/index.js
index 1973f30..4edd38e 100644
--- a/www/index.js
+++ b/www/index.js
@@ -27,7 +27,6 @@ export function main() {
 /** This function is used in `bootstrap.js` to setup imports. */
 export function setup(WasmChart) {
     ChartManager = WasmChart;
-    ChartManager.init_panic_hook(); // Allows `panic!()` to log in the browser's console
 }
 
 /** Add event listeners. */