Beispiel #1
0
Datei: lx.py Projekt: kr/sodium
def code_to_get_rest_args(operand_codes, pop_all_symbol):
    code_for_next_arg = preserving((argl_r,), operand_codes.car(),
                                   make_ir_seq((val_r, argl_r), (argl_r,),
                                       ir.cons(argl_r, val_r, argl_r)), pop_all_symbol)
    if operand_codes.cdr().nullp(): return code_for_next_arg
    return preserving((env_r,), code_for_next_arg,
            code_to_get_rest_args(operand_codes.cdr(), pop_all_symbol), pop_all_symbol)
Beispiel #2
0
Datei: lx.py Projekt: kr/sodium
def compile_literal(exp, target, linkage, cenv, pop_all_symbol):
  if exp is nil:
    return end_with_linkage(linkage,
            make_ir_seq((), (target,), mov(target, nil_r)), pop_all_symbol)
    return compile_self_evaluating(exp, target, linkage, cenv, pop_all_symbol)
  if self_evaluatingp(exp) or symbolp(exp):
    return compile_self_evaluating(exp, target, linkage, cenv, pop_all_symbol)
  if pairp(exp):
    reg = tmp_r
    if reg is target: reg = val_r # this feels like a hack
    d = compile_literal(exp.cdr(), target, next_s, cenv, pop_all_symbol)
    a = compile_literal(exp.car(), reg, next_s, cenv, pop_all_symbol)
    return end_with_linkage(linkage,
            append_ir_seqs(
                d,
                preserving((target,),
                    a,
                    make_ir_seq((reg, target), (target,),
                        ir.cons(target, reg, target)),
                    pop_all_symbol)), pop_all_symbol)
  raise CompileError(exp, "Can't compile literal")