1 files changed, 38 insertions, 0 deletions
diff --git a/src/js/_codegen/client-js.ts b/src/js/_codegen/client-js.ts
new file mode 100644
index 000000000..849240c1f
--- /dev/null
+++ b/src/js/_codegen/client-js.ts
@@ -0,0 +1,38 @@
+// This is the implementation for $debug
+export function createLogClientJS(filepath: string, publicName: string) {
+  return `
+let $debug_log_enabled = ((env) => (
+  // The rationale for checking all these variables is just so you don't have to exactly remember which one you set.
+  (env.BUN_DEBUG_ALL && env.BUN_DEBUG_ALL !== '0')
+  || (env.BUN_DEBUG_JS && env.BUN_DEBUG_JS !== '0')
+  || (env.BUN_DEBUG_${filepath
+    .replace(/^.*?:/, "")
+    .split(/[-_./]/g)
+    .join("_")
+    .toUpperCase()})
+  || (env.DEBUG_${filepath
+    .replace(/^.*?:/, "")
+    .split(/[-_./]/g)
+    .join("_")
+    .toUpperCase()})
+))(@Bun.env);
+let $debug_log = $debug_log_enabled ? (...args) => {
+  // warn goes to stderr without colorizing
+  console.warn(Bun.enableANSIColors ? '\\x1b[90m[${publicName}]\\x1b[0m' : '[${publicName}]', ...args);
+} : () => {};
+`;
+}
+
+export function createAssertClientJS(publicName: string) {
+  return `
+let $assert = function(check, sourceString, ...message) {
+  if (!check) {
+    console.error('[${publicName}] ASSERTION FAILED: ' + sourceString);
+    if(message.length)console.warn (' ${" ".repeat(publicName.length)}', ...message);
+    const e = new Error(sourceString);
+    e.name = 'AssertionError';
+    throw e;
+  }
+}
+`;
+}