tools: fix js2c regression

node.gyp

@@ -1094,6 +1094,7 @@
         'test/cctest/test_node_postmortem_metadata.cc',
         'test/cctest/test_environment.cc',
         'test/cctest/test_linked_binding.cc',
+        'test/cctest/test_per_process.cc',
         'test/cctest/test_platform.cc',
         'test/cctest/test_report_util.cc',
         'test/cctest/test_traced_value.cc',

src/node_native_module.h

@@ -11,6 +11,9 @@
 #include "node_union_bytes.h"
 #include "v8.h"
 
+// Forward declare test fixture for `friend` declaration.
+class PerProcessTest;
+
 namespace node {
 namespace native_module {
 
@@ -82,6 +85,8 @@ class NativeModuleLoader {
 
   // Used to synchronize access to the code cache map
   Mutex code_cache_mutex_;
+
+  friend class ::PerProcessTest;
 };
 }  // namespace native_module
 

test/cctest/test_per_process.cc

@@ -0,0 +1,34 @@
+#include "node_native_module.h"
+
+#include "gtest/gtest.h"
+#include "node_test_fixture.h"
+
+#include <string>
+
+
+using node::native_module::NativeModuleLoader;
+using node::native_module::NativeModuleRecordMap;
+
+class PerProcessTest : public ::testing::Test {
+ protected:
+  static const NativeModuleRecordMap get_sources_for_test() {
+    return NativeModuleLoader::instance_.source_;
+  }
+};
+
+namespace {
+
+TEST_F(PerProcessTest, EmbeddedSources) {
+  const auto& sources = PerProcessTest::get_sources_for_test();
+  ASSERT_TRUE(
+    std::any_of(sources.cbegin(), sources.cend(),
+                [](auto p){ return p.second.is_one_byte(); }))
+      << "NativeModuleLoader::source_ should have some 8bit items";
+
+  ASSERT_TRUE(
+    std::any_of(sources.cbegin(), sources.cend(),
+                [](auto p){ return !p.second.is_one_byte(); }))
+      << "NativeModuleLoader::source_ should have some 16bit items";
+}
+
+}  // end namespace

tools/js2c.py

@@ -200,6 +200,12 @@ def ReadMacros(macro_files):
 }}  // namespace node
 """
 
+ONE_BYTE_STRING = """
+static const uint8_t {0}[] = {{
+{1}
+}};
+"""
+
 TWO_BYTE_STRING = """
 static const uint16_t {0}[] = {{
 {1}
@@ -215,15 +221,25 @@ def ReadMacros(macro_files):
 is_verbose = False
 
 def GetDefinition(var, source, step=30):
-  encoded_source = bytearray(source, 'utf-16le')
-  code_points = [encoded_source[i] + (encoded_source[i+1] * 256) for i in range(0, len(encoded_source), 2)]
+  template = ONE_BYTE_STRING
+  code_points = [ord(c) for c in source]
+  if any(c > 127 for c in code_points):
+    template = TWO_BYTE_STRING
+    # Treat non-ASCII as UTF-8 and encode as UTF-16 Little Endian.
+    encoded_source = bytearray(source, 'utf-16le')
+    code_points = [
+      encoded_source[i] + (encoded_source[i + 1] * 256)
+      for i in range(0, len(encoded_source), 2)
+    ]
+
   # For easier debugging, align to the common 3 char for code-points.
   elements_s = ['%3s' % x for x in code_points]
   # Put no more then `step` code-points in a line.
   slices = [elements_s[i:i + step] for i in range(0, len(elements_s), step)]
   lines = [','.join(s) for s in slices]
   array_content = ',\n'.join(lines)
-  definition = TWO_BYTE_STRING.format(var, array_content)
+  definition = template.format(var, array_content)
+
   return definition, len(code_points)