fix: improve conversion of Errors in console functions (#133)

Author: zach

Cargo.toml

@@ -6,7 +6,7 @@ members = [
 ]
 
 [workspace.package]
-version = "1.5.0"
+version = "1.5.1"
 edition = "2021"
 authors = ["The Extism Authors"]
 license = "BSD-Clause-3"

README.md

@@ -253,12 +253,15 @@ module.exports = { count };
 
 ### Logging
 
-At the current time, calling `console.log` emits an `info` log. Please file an
-issue or PR if you want to expose the raw logging interface:
+There are several functions that can be used for logging:
 
 ```javascript
 function logStuff() {
-  console.log("Hello, World!");
+  console.info("Info");
+  console.debug("Debug");
+  console.error("Error");
+  console.warn("Warning");
+  console.log("Log"); // Alias for console.info 
 }
 
 module.exports = { logStuff };

crates/core/src/prelude/src/console.ts

@@ -24,7 +24,7 @@ function stringifyArg(arg: any): string {
 
     if (typeof arg === 'object') {
         if (arg instanceof Error) {
-            return arg.stack || `${arg.name}: ${arg.message}`;
+            return `${arg.name}: ${arg.message}${arg.stack ? '\n' : ''}${arg.stack}`;
         }
         if (arg instanceof Set) {
             return `Set(${arg.size}) { ${Array.from(arg).map(String).join(', ')} }`;
@@ -71,4 +71,4 @@ const console = {
 
 globalThis.console = console;
 
-export { };
+export { };