compiler: support constants in conditional fields

This commit adds support for using the value of constants in conditional
fields in addition to integers and flags. Intuitively, this probably
looks like it shouldn't be needed: constants are known so the condition
can be resolved ahead of time. It is however useful in the case of
templates (example in the next commit) where the type of a field may be
interchangeably an integer or a constant:

    type example_t[TYPE] {
        f1    TYPE
        f2    int32    (if[value[f1] == 3])
    }
    type example1 example_t[int64]
    type example2 example_t[const[0, int64]]

Signed-off-by: Paul Chaignon <paul.chaignon@gmail.com>

0 files changed, 0 insertions, 0 deletions