Resolve worker specifiers relative to main module of host. (#2751)

cli/ops.rs

@@ -2095,9 +2095,21 @@ fn op_create_worker(
 
   let parent_state = state.clone();
 
+  let mut module_specifier = ModuleSpecifier::resolve_url_or_path(specifier)?;
+
+  let mut child_argv = parent_state.argv.clone();
+
+  if !has_source_code {
+    if let Some(module) = state.main_module() {
+      module_specifier =
+        ModuleSpecifier::resolve_import(specifier, &module.to_string())?;
+      child_argv[1] = module_specifier.to_string();
+    }
+  }
+
   let child_state = ThreadSafeState::new(
     parent_state.flags.clone(),
-    parent_state.argv.clone(),
+    child_argv,
     op_selector_std,
     parent_state.progress.clone(),
     include_deno_namespace,
@@ -2134,8 +2146,6 @@ fn op_create_worker(
     return ok_buf(exec_cb(worker));
   }
 
-  let module_specifier = ModuleSpecifier::resolve_url_or_path(specifier)?;
-
   let op = worker
     .execute_mod_async(&module_specifier, false)
     .and_then(move |()| Ok(exec_cb(worker)));

tests/026_workers.ts

@@ -1,5 +1,5 @@
-const jsWorker = new Worker("./tests/subdir/test_worker.js");
-const tsWorker = new Worker("./tests/subdir/test_worker.ts");
+const jsWorker = new Worker("./subdir/test_worker.js");
+const tsWorker = new Worker("./subdir/test_worker.ts");
 
 tsWorker.onmessage = (e): void => {
   console.log("Received ts: " + e.data);

tests/039_worker_deno_ns.ts

@@ -1,5 +1,5 @@
-const w1 = new Worker("./tests/039_worker_deno_ns/has_ns.ts");
-const w2 = new Worker("./tests/039_worker_deno_ns/no_ns.ts", {
+const w1 = new Worker("./039_worker_deno_ns/has_ns.ts");
+const w2 = new Worker("./039_worker_deno_ns/no_ns.ts", {
   noDenoNamespace: true
 });
 let w1MsgCount = 0;

tests/039_worker_deno_ns/has_ns.ts

@@ -2,7 +2,7 @@ onmessage = (msg): void => {
   if (msg.data === "START") {
     postMessage("has_ns.ts: is window.Deno available: " + !!window.Deno);
   } else {
-    const worker = new Worker("./tests/039_worker_deno_ns/maybe_ns.ts");
+    const worker = new Worker("./maybe_ns.ts");
     worker.onmessage = (msg): void => {
       postMessage("[SPAWNED BY has_ns.ts] " + msg.data);
     };

tests/039_worker_deno_ns/no_ns.ts

@@ -2,7 +2,7 @@ onmessage = (msg): void => {
   if (msg.data === "START") {
     postMessage("no_ns.ts: is window.Deno available: " + !!window.Deno);
   } else {
-    const worker = new Worker("./tests/039_worker_deno_ns/maybe_ns.ts");
+    const worker = new Worker("./maybe_ns.ts");
     worker.onmessage = (msg): void => {
       postMessage("[SPAWNED BY no_ns.ts] " + msg.data);
     };

tests/workers_round_robin_bench.ts

@@ -39,7 +39,7 @@ function handleAsyncMsgFromWorker(
 async function main(): Promise<void> {
   const workers: Array<[Map<number, Resolvable<string>>, Worker]> = [];
   for (var i = 1; i <= workerCount; ++i) {
-    const worker = new Worker("tests/subdir/bench_worker.ts");
+    const worker = new Worker("./subdir/bench_worker.ts");
     const promise = new Promise(
       (resolve): void => {
         worker.onmessage = (e): void => {

tests/workers_startup_bench.ts

@@ -4,7 +4,7 @@ const workerCount = 50;
 async function bench(): Promise<void> {
   const workers: Worker[] = [];
   for (var i = 1; i <= workerCount; ++i) {
-    const worker = new Worker("tests/subdir/bench_worker.ts");
+    const worker = new Worker("./subdir/bench_worker.ts");
     const promise = new Promise(
       (resolve): void => {
         worker.onmessage = (e): void => {