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module demo::lang::Pico::Abstract

rascal-0.34.0

Usage​

import demo::lang::Pico::Abstract;

data TYPE​

data TYPE (loc src=|unknown:///|) 
     = natural()
     | string()
     ;

alias PicoId​

str

data PROGRAM​

data PROGRAM (loc src=|unknown:///|) 
     = program(list[DECL] decls, list[STATEMENT] stats)
     ;

data DECL​

data DECL (loc src=|unknown:///|) 
     = decl(PicoId name, TYPE tp)
     ;

data EXP​

data EXP (loc src=|unknown:///|) 
     = id(PicoId name)
     | natCon(int iVal)
     | strCon(str sVal)
     | add(EXP left, EXP right)
     | sub(EXP left, EXP right)
     | conc(EXP left, EXP right)
     ;

data STATEMENT​

data STATEMENT (loc src=|unknown:///|) 
     = asgStat(PicoId name, EXP exp)
     | ifElseStat(EXP exp, list[STATEMENT] thenpart, list[STATEMENT] elsepart)
     | whileStat(EXP exp, list[STATEMENT] body)
     ;

alias Occurrence​

tuple[loc src, PicoId name, STATEMENT stat]