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72 lines
1.8 KiB
Plaintext
72 lines
1.8 KiB
Plaintext
--# -path=.:../prelude
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concrete ImperC of Imper = open Prelude, Precedence, ResImper in {
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flags lexer=codevars ; unlexer=code ; startcat=Stm ;
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-- code inside function bodies
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lincat
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Stm = SS ;
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Typ = SS ;
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Exp = PrecExp ;
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Var = SS ;
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lin
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Decl typ cont = continue (typ.s ++ cont.$0) cont ;
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Assign _ x exp = continue (x.s ++ "=" ++ ex exp) ;
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Return _ exp = statement ("return" ++ ex exp) ;
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While exp loop = continue ("while" ++ paren (ex exp) ++ loop.s) ;
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Block stm = continue ("{" ++ stm.s ++ "}") ;
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End = statement [] ;
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EVar _ x = constant x.s ;
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EInt n = constant n.s ;
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EFloat a b = constant (a.s ++ "." ++ b.s) ;
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EMulI = infixL p3 "*" ;
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EMulF = infixL p3 "*" ;
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EAddI = infixL p2 "+" ;
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EAddF = infixL p2 "+" ;
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ELtI = infixN p1 "<" ;
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ELtF = infixN p1 "<" ;
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TInt = ss "int" ;
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TFloat = ss "float" ;
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-- top-level code consisting of function definitions
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lincat
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Program = SS ;
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Typs = SS ;
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Fun = SS ;
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Body = {s,s2 : Str ; size : Size} ;
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Exps = {s : Str ; size : Size} ;
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lin
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Empty = ss [] ;
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Funct args val body cont = ss (
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val.s ++ cont.$0 ++ paren body.s2 ++ "{" ++
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body.s ++
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"}" ++ ";" ++
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cont.s
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) ;
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NilTyp = ss [] ;
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ConsTyp = cc2 ;
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BodyNil stm = stm ** {s2 = [] ; size = Zero} ;
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BodyCons typ _ body = {
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s = body.s ;
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s2 = typ.s ++ body.$0 ++ separator "," body.size ++ body.s2 ;
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size = nextSize body.size
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} ;
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EApp args val f exps = constant (f.s ++ paren exps.s) ;
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NilExp = ss [] ** {size = Zero} ;
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ConsExp _ _ e es = {
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s = ex e ++ separator "," es.size ++ es.s ;
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size = nextSize es.size
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} ;
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}
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