[ CCode ( instance_pos = 2.9 ) ]
public delegate bool StructureForeachFunc (Quark field_id, Value value)
A function that will be called in @foreach.
The function may not modify value.
| field_id |
the Quark of the field name |
| value |
the Value of the field |
| user_data |
user data |
|
true if the foreach operation should continue, false if the foreach operation should stop with false. |