diff options
Diffstat (limited to 'parser.sml')
| -rw-r--r-- | parser.sml | 7 |
1 files changed, 6 insertions, 1 deletions
@@ -447,7 +447,12 @@ struct const (Syntax.ELambda (p, e))))) <|> raiseExpr) st and expr : Syntax.expr parser = fn st => fnExpr st - and dec : Syntax.dec parser = fn st => (reserved "val" >> reserved "_" >> reserved "=" >> Syntax.DVal <$> expr) st + and dec : Syntax.dec parser = fn st => + (reserved "val" >> + bind pat (fn p => + reserved "=" >> + bind expr (fn e => + const (Syntax.DVal (p, e))))) st val program : Syntax.expr parser = (fn decs => Syntax.ELet (decs, Syntax.EInt 0)) <$> many dec fun parse (f : string) : (string, Syntax.expr) Result.either = runParser program f |
