def p_varcte_id(p):
'''varcte : ID'''
var = symtable.get_var(p[1])
if not var:
errors.append("Line {}: Undefined variable '{}'".format(p.lineno(1), p[1]))
raise SyntaxError
else:
p[0] = var
def p_array_index(p):
'''array_index : LBRACK expression RBRACK'''
var = symtable.get_var(p[-1])
if not var:
errors.append("Line {}: Undefined variable '{}'".format(p.lineno(1), p[-1]))
raise SyntaxError
elif not var['dim']:
errors.append("Line {}: Variable '{}' is not an array".format(p.lineno(1), p[-1]))
raise SyntaxError
exp_res = codegen.opdos.pop()
if exp_res['type'] != int:
errors.append("Line {}: Index must be integer".format(p.lineno(1)))
raise SyntaxError
liminf = 0
limsup = var['dim']-1
codegen.gen_quad(dir.verifica, exp_res['dir'], liminf, limsup)
basedir = symtable.add_constant(var['dir'])
pointer = symtable.newpointer()
codegen.gen_quad(dir.suma, basedir['dir'], exp_res['dir'], pointer)
res = {'dir':pointer, 'type':int, 'dim':None}
#codegen.opdos.append(res)
p[0] = res
def p_input(p):
'input : SCAN ID'
var = symtable.get_var(p[2])
if not var:
var = symtable.add_var(p[2], str, None)
codegen.gen_quad(dir.scan, -1, -1, var['dir'])
