--experimental-detect-module flag

Author: GeoffreyBooth

src/node_options.cc

@@ -347,6 +347,11 @@ EnvironmentOptionsParser::EnvironmentOptionsParser() {
             &EnvironmentOptions::conditions,
             kAllowedInEnvvar);
   AddAlias("-C", "--conditions");
+  AddOption("--experimental-detect-module",
+            "when ambiguous modules fail to evaluate because they contain "
+            "ES module syntax, try again to evaluate them as ES modules",
+            &EnvironmentOptions::detect_module,
+            kAllowedInEnvvar);
   AddOption("--diagnostic-dir",
             "set dir for all output files"
             " (default: current working directory)",

src/node_options.h

@@ -104,6 +104,7 @@ class EnvironmentOptions : public Options {
  public:
   bool abort_on_uncaught_exception = false;
   std::vector<std::string> conditions;
+  bool detect_module = false;
   std::string dns_result_order;
   bool enable_source_maps = false;
   bool experimental_fetch = true;