worker: use DataCloneError for unknown native objects

This aligns the behaviour better with the web. PR-URL: #28025 Reviewed-By: Michaël Zasso <targos@protonmail.com> Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Tiancheng "Timothy" Gu <timothygu99@gmail.com>
nodejs · Jun 17, 2019 · d7641d8 · d7641d8
1 parent 5fc4e48
commit d7641d8
Show file tree

Hide file tree

Showing 5 changed files with 49 additions and 9 deletions.
diff --git a/doc/api/errors.md b/doc/api/errors.md
@@ -671,12 +671,6 @@ An operation outside the bounds of a `Buffer` was attempted.
 An attempt has been made to create a `Buffer` larger than the maximum allowed
 size.
 
-<a id="ERR_CANNOT_TRANSFER_OBJECT"></a>
-### ERR_CANNOT_TRANSFER_OBJECT
-
-The value passed to `postMessage()` contained an object that is not supported
-for transferring.
-
 <a id="ERR_CANNOT_WATCH_SIGINT"></a>
 ### ERR_CANNOT_WATCH_SIGINT
 
@@ -2013,6 +2007,16 @@ A module file could not be resolved while attempting a [`require()`][] or
 > Stability: 0 - Deprecated. These error codes are either inconsistent, or have
 > been removed.
 
+<a id="ERR_CANNOT_TRANSFER_OBJECT"></a>
+### ERR_CANNOT_TRANSFER_OBJECT
+<!--
+added: v10.5.0
+removed: REPLACEME
+-->
+
+The value passed to `postMessage()` contained an object that is not supported
+for transferring.
+
 <a id="ERR_CLOSED_MESSAGE_PORT"></a>
 ### ERR_CLOSED_MESSAGE_PORT
 <!-- YAML

diff --git a/src/env.h b/src/env.h
@@ -158,6 +158,7 @@ constexpr size_t kFsStatsBufferLength = kFsStatsFieldsNumber * 2;
   V(change_string, "change")                                                   \
   V(channel_string, "channel")                                                 \
   V(chunks_sent_since_last_write_string, "chunksSentSinceLastWrite")           \
+  V(clone_unsupported_type_str, "Cannot transfer object of unsupported type.") \
   V(code_string, "code")                                                       \
   V(commonjs_string, "commonjs")                                               \
   V(config_string, "config")                                                   \

diff --git a/src/node_errors.h b/src/node_errors.h
@@ -54,7 +54,6 @@ void FatalException(v8::Isolate* isolate,
   V(ERR_BUFFER_CONTEXT_NOT_AVAILABLE, Error)                                 \
   V(ERR_BUFFER_OUT_OF_BOUNDS, RangeError)                                    \
   V(ERR_BUFFER_TOO_LARGE, Error)                                             \
-  V(ERR_CANNOT_TRANSFER_OBJECT, TypeError)                                   \
   V(ERR_CONSTRUCT_CALL_REQUIRED, Error)                                      \
   V(ERR_INVALID_ARG_VALUE, TypeError)                                        \
   V(ERR_INVALID_ARG_TYPE, TypeError)                                         \
@@ -100,7 +99,6 @@ void FatalException(v8::Isolate* isolate,
 #define PREDEFINED_ERROR_MESSAGES(V)                                         \
   V(ERR_BUFFER_CONTEXT_NOT_AVAILABLE,                                        \
     "Buffer is not available for the current Context")                       \
-  V(ERR_CANNOT_TRANSFER_OBJECT, "Cannot transfer object of unsupported type")\
   V(ERR_CONSTRUCT_CALL_REQUIRED, "Cannot call constructor without `new`")    \
   V(ERR_INVALID_TRANSFER_OBJECT, "Found invalid object in transferList")     \
   V(ERR_MEMORY_ALLOCATION_FAILED, "Failed to allocate memory")               \

diff --git a/src/node_messaging.cc b/src/node_messaging.cc
@@ -232,7 +232,7 @@ class SerializerDelegate : public ValueSerializer::Delegate {
       return WriteMessagePort(Unwrap<MessagePort>(object));
     }
 
-    THROW_ERR_CANNOT_TRANSFER_OBJECT(env_);
+    ThrowDataCloneError(env_->clone_unsupported_type_str());
     return Nothing<bool>();
   }
 

diff --git a/test/parallel/test-worker-message-port-transfer-native.js b/test/parallel/test-worker-message-port-transfer-native.js
@@ -0,0 +1,37 @@
+// Flags: --expose-internals
+'use strict';
+const common = require('../common');
+const assert = require('assert');
+const { MessageChannel } = require('worker_threads');
+const { internalBinding } = require('internal/test/binding');
+
+// Test that passing native objects and functions to .postMessage() throws
+// DataCloneError exceptions.
+
+{
+  const { port1, port2 } = new MessageChannel();
+  port2.once('message', common.mustNotCall());
+
+  assert.throws(() => {
+    port1.postMessage(function foo() {});
+  }, {
+    name: 'DataCloneError',
+    message: /function foo\(\) \{\} could not be cloned\.$/
+  });
+  port1.close();
+}
+
+{
+  const { port1, port2 } = new MessageChannel();
+  port2.once('message', common.mustNotCall());
+
+  const nativeObject = new (internalBinding('js_stream').JSStream)();
+
+  assert.throws(() => {
+    port1.postMessage(nativeObject);
+  }, {
+    name: 'DataCloneError',
+    message: /Cannot transfer object of unsupported type\.$/
+  });
+  port1.close();
+}