Method Visit

cpp/src/gandiva/expr_validator.cc:69–90

}

Status ExprValidator::Visit(const FieldNode& node) {
  auto llvm_type = types_->IRType(node.return_type()->id());
  ARROW_RETURN_IF(llvm_type == nullptr,
                  Status::ExpressionValidationError("Field ", node.field()->name(),
                                                    " has unsupported data type ",
                                                    node.return_type()->name()));

  // Ensure that field is found in schema
  auto field_in_schema_entry = field_map_.find(node.field()->name());
  ARROW_RETURN_IF(field_in_schema_entry == field_map_.end(),
                  Status::ExpressionValidationError("Field ", node.field()->name(),
                                                    " not in schema."));

  // Ensure that the found field matches.
  FieldPtr field_in_schema = field_in_schema_entry->second;
  ARROW_RETURN_IF(!field_in_schema->Equals(node.field()),
                  Status::ExpressionValidationError(
                      "Field definition in schema ", field_in_schema->ToString(),
                      " different from field in expression ", node.field()->ToString()));

  return Status::OK();
}

Status ExprValidator::Visit(const FunctionNode& node) {
  const auto& desc = node.descriptor();