diff options
Diffstat (limited to 'core/control_flow.nom')
| -rw-r--r-- | core/control_flow.nom | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/core/control_flow.nom b/core/control_flow.nom index c3b5b2b..3f20e10 100644 --- a/core/control_flow.nom +++ b/core/control_flow.nom @@ -1,4 +1,4 @@ -#.. +# This file contains compile-time actions that define basic control flow structures like "if" statements and loops. @@ -28,7 +28,7 @@ immediately end # Conditional expression (ternary operator) -#.. Note: this uses a function instead of "(condition and if_expr or else_expr)" +# Note: this uses a function instead of "(condition and if_expr or else_expr)" because that breaks if %if_expr is falsey, e.g. "x < 5 and false or 99" immediately compile [..] @@ -37,14 +37,14 @@ immediately %when_false_expr unless %condition else %when_true_expr %when_false_expr unless %condition then %when_true_expr ..to - #.. If %when_true_expr is guaranteed to be truthy, we can use Lua's idiomatic + # If %when_true_expr is guaranteed to be truthy, we can use Lua's idiomatic equivalent of a conditional expression: (cond and if_true or if_false) if: %when_true_expr.type in {Text:yes, List:yes, Dict:yes, Number:yes} return Lua value ".." (\(%condition as lua expr) and \(%when_true_expr as lua expr) or \(%when_false_expr as lua expr)) ..else - #.. Otherwise, need to do an anonymous inline function (yuck, too bad lua + # Otherwise, need to do an anonymous inline function (yuck, too bad lua doesn't have a proper ternary operator!) To see why this is necessary consider: (random()<.5 and false or 99) return |