def parse(self, source, filename=None):
if filename is not None:
self.filename = filename
source = self._prepSource(source)
try:
result = parseFunc(source)
except ParseError as e:
if self.filename != "":
err = e.nice_error_message().split("\n")
msg = err[len(err) - 1]
print error_message(
self.filename,
(e.source_pos.lineno, e.source_pos.columnno), msg)
else:
self._printErrorInfo(e)
return None
newtree = ToAST().transform(result)
if self.debug:
print ">>> Parse tree <<<"
self._printTree(newtree)
tree = ast.RootNode()
childNodes = []
assert newtree.symbol == "program"
for item in newtree.children:
childNodes.append(self._traverse(item))
tree.set(childNodes)
return tree
def parse(self, source, filename=None):
if filename is not None:
self.filename = filename
source = self._prepSource(source)
try:
result = parseFunc(source)
except ParseError as e:
if self.filename != "":
err = e.nice_error_message().split("\n")
msg = err[len(err) - 1]
print error_message(self.filename, (e.source_pos.lineno, e.source_pos.columnno), msg)
else:
self._printErrorInfo(e)
return None
newtree = ToAST().transform(result)
if self.debug:
print ">>> Parse tree <<<"
self._printTree(newtree)
tree = ast.RootNode()
childNodes = []
assert newtree.symbol == "program"
for item in newtree.children:
childNodes.append(self._traverse(item))
tree.set(childNodes)
return tree
def main(argv):
argc = len(argv)
# debugging flags
debug = 0
debug_parser = False
debug_compiler = False
debug_interpreter = False
if argc == 1:
print "Usage: %s [-pci] <filename>.dip\n" % argv[0]
print " -p: Debug parser/ast"
print " -c: Debug compiler/bytecode"
print " -i: Debug interpreter/execution"
return 1
elif argc == 2:
debug = 0
filename = argv[1]
dip_args = []
else:
assert argc > 2
if argv[1].startswith("-"):
# figure out debug flags based on the first argument
for ch in argv[1]:
if ch == "p":
debug_parser = True
if ch == "c":
debug_compiler = True
elif ch == "i":
debug_interpreter = True
filename = argv[2]
dip_args = argv[2:]
else:
filename = argv[1]
dip_args = argv[1:]
if not os.path.exists(filename):
print "Specified file '%s' does not exist." % filename
return 1
# read in the file contents
data = basicio.readall(filename)
# create a parser
dip = parser.DipperParser(debug=debug_parser)
# just a debugging step so we can see the same input the parser sees
#print "=============== code ==================="
#print ">>> Source code (after small preprocessing step) <<<"
#print dip._prepSource(data)
if debug_parser > 0:
print "============== parsing ================="
try:
tree = dip.parse(data, filename=filename)
except Exception as e:
print "Error parsing file '%s': %s" % (filename, str(e))
return 1
if tree is None:
print "Error parsing file '%s'" % filename
return 1
if debug_parser:
print ">>> AST <<<"
print tree.show()
if debug_compiler:
print "============= compiling ================"
vm = interpreter.VirtualMachine(dip_args, debug=debug_interpreter)
mainmodule = Module.from_ast(filename, "main", tree)
if debug_compiler:
print mainmodule.toString()
for name, func in mainmodule.funcs.items():
print
print "___ Function '%s' ___" % name
print func.toString()
vm.setglobals(mainmodule)
if debug_parser or debug_compiler or debug_interpreter:
print "============= executing ================"
try:
vm.run()
except interpreter.InterpreterError as e:
print error_message(filename, e.getsource(), e.getmessage())
return 1
except Exception as e:
print error_from_exception(filename, (-1, -1), e)
raise
return 0
def main(argv):
argc = len(argv)
# debugging flags
debug = 0
debug_parser = False
debug_compiler = False
debug_interpreter = False
if argc == 1:
print "Usage: %s [-pci] <filename>.dip\n" % argv[0]
print " -p: Debug parser/ast"
print " -c: Debug compiler/bytecode"
print " -i: Debug interpreter/execution"
return 1
elif argc == 2:
debug = 0
filename = argv[1]
dip_args = []
else:
assert argc > 2
if argv[1].startswith("-"):
# figure out debug flags based on the first argument
for ch in argv[1]:
if ch == "p":
debug_parser = True
if ch == "c":
debug_compiler = True
elif ch == "i":
debug_interpreter = True
filename = argv[2]
dip_args = argv[2:]
else:
filename = argv[1]
dip_args = argv[1:]
if not os.path.exists(filename):
print "Specified file '%s' does not exist." % filename
return 1
# read in the file contents
data = basicio.readall(filename)
# create a parser
dip = parser.DipperParser(debug=debug_parser)
# just a debugging step so we can see the same input the parser sees
#print "=============== code ==================="
#print ">>> Source code (after small preprocessing step) <<<"
#print dip._prepSource(data)
if debug_parser > 0:
print "============== parsing ================="
try:
tree = dip.parse(data, filename=filename)
except Exception as e:
print "Error parsing file '%s': %s" % (filename, str(e))
return 1
if tree is None:
print "Error parsing file '%s'" % filename
return 1
if debug_parser:
print ">>> AST <<<"
print tree.show()
if debug_compiler:
print "============= compiling ================"
vm = interpreter.VirtualMachine(dip_args, debug=debug_interpreter)
mainmodule = Module.from_ast(filename, "main", tree)
if debug_compiler:
print mainmodule.toString()
for name, func in mainmodule.funcs.items():
print
print "___ Function '%s' ___" % name
print func.toString()
vm.setglobals(mainmodule)
if debug_parser or debug_compiler or debug_interpreter:
print "============= executing ================"
try:
vm.run()
except interpreter.InterpreterError as e:
print error_message(filename, e.getsource(), e.getmessage())
return 1
except Exception as e:
print error_from_exception(filename, (-1, -1), e)
raise
return 0
