Remove the extra document node from the parse tree

Author: wravery

GraphQLService.cpp

@@ -381,10 +381,9 @@ Request::Request(TypeMap&& operationTypes)
 
 rapidjson::Document Request::resolve(const peg::ast_node& root, const std::string& operationName, const rapidjson::Document::ConstObject& variables) const
 {
-	const auto& document = *root.children.front();
 	FragmentDefinitionVisitor fragmentVisitor;
 
-	peg::for_each_child<peg::fragment_definition>(document,
+	peg::for_each_child<peg::fragment_definition>(root,
 		[&fragmentVisitor](const peg::ast_node& child)
 	{
 		fragmentVisitor.visit(child);
@@ -393,7 +392,7 @@ rapidjson::Document Request::resolve(const peg::ast_node& root, const std::strin
 	auto fragments = fragmentVisitor.getFragments();
 	OperationDefinitionVisitor operationVisitor(_operations, operationName, variables, fragments);
 
-	peg::for_each_child<peg::operation_definition>(document,
+	peg::for_each_child<peg::operation_definition>(root,
 		[&operationVisitor](const peg::ast_node& child)
 	{
 		operationVisitor.visit(child);

GraphQLTree.cpp

@@ -552,12 +552,6 @@ struct ast_selector<input_object_type_extension>
 {
 };
 
-template <>
-struct ast_selector<document>
-	: std::true_type
-{
-};
-
 std::unique_ptr<ast<std::string>> parseString(std::string&& input)
 {
 	std::unique_ptr<ast<std::string>> result(new ast<std::string> { std::move(input), nullptr });

SchemaGenerator.cpp

@@ -144,7 +144,7 @@ Generator::Generator()
 		throw std::logic_error("Unable to parse the introspection schema, but there was no error message from the parser!");
 	}
 
-	for (const auto& child : ast->root->children.front()->children)
+	for (const auto& child : ast->root->children)
 	{
 		visitDefinition(*child);
 	}
@@ -167,7 +167,7 @@ Generator::Generator(std::string schemaFileName, std::string filenamePrefix, std
 		throw std::logic_error("Unable to parse the service schema, but there was no error message from the parser!");
 	}
 
-	for (const auto& child : ast->root->children.front()->children)
+	for (const auto& child : ast->root->children)
 	{
 		visitDefinition(*child);
 	}