Conform option does not pay attention on language features #8169
Description
I was trying to use --conform option while have some unions with structures inside.
Simplified fbs file:
namespace DataModel;
// Wrapping structures for union
struct A {
a:int;
}
struct B {
b:double;
}
// Unions
union FooUnion {
a:A,
b:B
}
table Msg {
foo:FooUnion;
}
If I generate code from this DM it works:
flatc --swift DM.fbs
But if I want to check conformance for this file:
$ flatc --swift DM.fbs --conform DM.fbs --swift
error:
<path...>/DM.fbs:23: 0: error: only tables can be union elements in the generated language: a
I guess that conformance parser should copy options around this place:
diff --git a/src/flatc.cpp b/src/flatc.cpp
index 4bc88eb1..e5f96b46 100644
--- a/src/flatc.cpp
+++ b/src/flatc.cpp
@@ -727,6 +727,7 @@ void FlatCompiler::ValidateOptions(const FlatCOptions &options) {
flatbuffers::Parser FlatCompiler::GetConformParser(
const FlatCOptions &options) {
flatbuffers::Parser conform_parser;
+ conform_parser.opts = options.opts;
if (!options.conform_to_schema.empty()) {
std::string contents;
if (!flatbuffers::LoadFile(options.conform_to_schema.c_str(), true,
diff --git a/src/idl_parser.cpp b/src/idl_parser.cpp
index d01e18ef..0580808d 100644
Then conformance works correctly.
Not sure if it is a bug or some intentional behaviour.