[THRIFT-2067] Thrift objects should have a default string representation

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.9.2
• Component/s: C++ - Compiler, C++ - Library
• Assignee: Konrad Grochowski
• Reporter: Vitali Lovich
• Created: 25/Jun/13 17:10
• Updated: 23/Sep/15 16:20
• Resolved: 03/Sep/14 22:05

Description

Just like thrift objects implement a custom toString in Java, there should be an inline friend function that writes a text representation of the struct to a std::ostream. Probably makes sense for the text representation to be similar to C++:

class MyThriftClass {
    friend std::ostream& operator<<(std::ostream& o, MyThriftClass) {
        o << "MyThriftClass[";
        o << "field1=" << field1;
        if (__isset.field2) {
             o << ", field2=" << field2;
        }
        o << ", list1=" << apache::thrift::util::to_string(list1);
        return o << "]";
    }
    // ...
}

There will also probably be a util.h file to include that implements generic template to_string for lists, maps, & sets.

Issue Links

• breaks: THRIFT-3336 Thrift generated streaming operators added in 0.9.2 cannot be overridden
• is related to: THRIFT-2691 C++ - new operator<< could be used in tutorial