src: throw error in LoadBuiltinModuleSource when reading fails

- Move the file reading code in LoadBuiltinModuleSource into
  util.h so that it can be reused by other C++ code, and
  return an error code from it when there is a failure for
  the caller to generate an error.
- Throw an error when reading local builtins fails in
  LoadBulitinModuleSource.

PR-URL: https://github.com/nodejs/node/pull/38904
Reviewed-By: Chengzhong Wu <legendecas@gmail.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/src/util.h b/src/util.h
index 79ad3dfe2d0..050e4bda35a 100644
--- a/src/util.h
+++ b/src/util.h
@@ -813,6 +813,10 @@ std::unique_ptr<T> static_unique_pointer_cast(std::unique_ptr<U>&& ptr) {
 }
 
 #define MAYBE_FIELD_PTR(ptr, field) ptr == nullptr ? nullptr : &(ptr->field)
+
+// Returns a non-zero code if it fails to open or read the file,
+// aborts if it fails to close the file.
+int ReadFileSync(std::string* result, const char* path);
 }  // namespace node
 
 #endif  // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS