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module demo::lang::Pico::Abstract

rascal-0.40.17

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]