diff options
Diffstat (limited to 'lib/SATS')
| -rw-r--r-- | lib/SATS/valid.sats | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/lib/SATS/valid.sats b/lib/SATS/valid.sats index 83081fe..bfbbc23 100644 --- a/lib/SATS/valid.sats +++ b/lib/SATS/valid.sats @@ -8,16 +8,17 @@ absviewt@ype valid(a:viewt@ype,b:bool) = (a,bool b) viewtypedef Valid(a:viewt@ype) = [b : bool] valid(a,b) // Wraps valid value. -fn {a:viewt@ype} create_valid(a) : valid(a,true) +fn {a:viewt@ype} create_valid(a) :<> valid(a,true) // Creates unvalid type. -fn {a:viewt@ype} create_unvalid() : valid(a,false) +fn {a:viewt@ype} create_unvalid() :<> valid(a,false) // Only function that allows getting value. Only accepts valid values. -fn {a:viewt@ype} unwrap_valid(valid(a,true)) : a +fn {a:viewt@ype} unwrap_valid(valid(a,true)) :<> a -castfn destroy_unvalid{a:viewt@ype}(valid(a,false)) : void +castfn destroy_unvalid{a:viewt@ype}(valid(a,false)) :<> void // Check if value is valid -fn{a:viewt@ype} is_valid{b:bool}(!valid(a,b)) : bool b +fn{a:viewt@ype} is_valid{c:bool}(!valid(a,c) >> valid(a,b)) :<> #[b:bool] bool b + |