On Tuesday, 16 June 2015 at 21:17:37 UTC, tcak wrote:
As far as I known, when I define a string with enum and it is
used at different parts of code, that string is repeated again
and again in executable file instead of passing a pointer to
string. So, using enum with string doesn't seem like a good
idea.
Hence, I defined string as const to make it belong to struct
itself instead of instances, but it comes with 'need `this` for
...' error. This indicates that the string doesn't belong to
struct itself actually.
Because there is nothing like namespace in D, I used a
sub-struct.
[code]
struct TableSchema{
const string TABLE = "users";
struct FieldTypes{
const string ID = "BIGINT";
}
const string CREATESQL = "... id " ~ FieldTypes.ID ~ "...";
}
[/code]
But compiler doesn't allow me to access FieldTypes.ID. It says
that it needs `this`. I tried with `static shared`, used
`class` instead of `struct` etc. But couldn't have come up with
a nice solution.
Do i miss a detail in your requirement ?
---
struct TableSchema{
const string TABLE = "users";
struct FieldTypes{
static const string ID = "BIGINT";
}
const string CREATESQL = "... id " ~ FieldTypes.ID ~ "...";
}
---
because this works.
