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package flags
import "core:fmt"
import "core:reflect"
import "core:strconv"
_ :: fmt
_ :: reflect
_ :: strconv
// Validate that all the required arguments are set.
validate :: proc(data: ^$T, max_pos: int, set_args: []string) -> Error {
fields := reflect.struct_fields_zipped(T)
check_fields: for field in fields {
tag := reflect.struct_tag_lookup(field.tag, TAG_ARGS) or_continue
if _, ok := get_struct_subtag(tag, SUBTAG_REQUIRED); ok {
was_set := false
// Check if it was set by name.
check_set_args: for set_arg in set_args {
if get_field_name(field) == set_arg {
was_set = true
break check_set_args
}
}
// Check if it was set by position.
if pos, has_pos := get_struct_subtag(tag, SUBTAG_POS); has_pos {
value, value_ok := strconv.parse_int(pos)
if value < max_pos {
was_set = true
}
}
if !was_set {
return Validation_Error {
fmt.tprintf("required argument `%s` was not set", field.name),
}
}
}
}
return nil
}
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