def main():
import mpasparse
import sys
from errors import subscribe_errors
lexer = mpaslex.make_lexer()
parser = mpasparse.make_parser()
with subscribe_errors(lambda msg: sys.stderr.write(msg+"\n")):
program = parser.parse(open(sys.argv[1]).read())
check_program(program)
import sys
import os.path
import mpasparse
import mpasgen
import semantic
from errors import subscribe_errors, errors_reported
if __name__ == '__main__':
filename = sys.argv[1]
outname = os.path.splitext(filename)[0] + ".s"
parser = mpasparse.make_parser()
with subscribe_errors(lambda msg: sys.stdout.write(msg+"\n")):
program = parser.parse(open(sys.argv[1]).read())
# Revise el programa
num_errors = semantic.check_program(program)
# Si no ocurren errores, genere codigo
if num_errors == 0:
outf = open(outname,"w")
mpasgen.generate(outf,program)
outf.close()
else:
sys.stderr.write("Program couldn't be compiled\n")
# Emite un salto condicional alrededor del if-branch
inst = ('JUMP_IF_FALSE',
block.else_branch if block.else_branch else block.next_block)
print(" %s" % (inst,))
self.visit(block.if_branch)
if block.else_branch:
# Emite un salto alrededor del if-branch (si hay alguno)
inst = ('JUMP', block.next_block)
print(" %s" % (inst,))
self.visit(block.else_branch)
if __name__ == '__main__':
import mpasparse
import mpaslex
from mpasparse import make_parser
lexer = mpaslex.make_lexer()
parser = make_parser()
top = parser.parse("""\
start
if a < 0:
a + b
else:
a - b
done
""")
gen = CodeGenerator()
gen.visit(top)
# PrintBlocks().visit(gen.start_block)
EmitBlocks().visit(gen.start_block)