Class SBType

source code

    Represents a data type in lldb.  The FindFirstType() method of SBTarget/SBModule
    returns a SBType.

    SBType supports the eq/ne operator. For example,

    main.cpp:

    class Task {
    public:
        int id;
        Task *next;
        Task(int i, Task *n):
            id(i),
            next(n)
        {}
    };

    int main (int argc, char const *argv[])
    {
        Task *task_head = new Task(-1, NULL);
        Task *task1 = new Task(1, NULL);
        Task *task2 = new Task(2, NULL);
        Task *task3 = new Task(3, NULL); // Orphaned.
        Task *task4 = new Task(4, NULL);
        Task *task5 = new Task(5, NULL);

        task_head->next = task1;
        task1->next = task2;
        task2->next = task4;
        task4->next = task5;

        int total = 0;
        Task *t = task_head;
        while (t != NULL) {
            if (t->id >= 0)
                ++total;
            t = t->next;
        }
        printf('We have a total number of %d tasks
', total);

        // This corresponds to an empty task list.
        Task *empty_task_head = new Task(-1, NULL);

        return 0; // Break at this line
    }

    find_type.py:

            # Get the type 'Task'.
            task_type = target.FindFirstType('Task')
            self.assertTrue(task_type)

            # Get the variable 'task_head'.
            frame0.FindVariable('task_head')
            task_head_type = task_head.GetType()
            self.assertTrue(task_head_type.IsPointerType())

            # task_head_type is 'Task *'.
            task_pointer_type = task_type.GetPointerType()
            self.assertTrue(task_head_type == task_pointer_type)

            # Get the child mmember 'id' from 'task_head'.
            id = task_head.GetChildMemberWithName('id')
            id_type = id.GetType()

            # SBType.GetBasicType() takes an enum 'BasicType' (lldb-enumerations.h).
            int_type = id_type.GetBasicType(lldb.eBasicTypeInt)
            # id_type and int_type should be the same type!
            self.assertTrue(id_type == int_type)

    ...