class Compiler:
"""This class encapsulates all the compiling process."""
def __init__(self):
self.setUpLogging()
self.debug = False
self.input = sys.stdin
#We use 'buffer' to get a stream of bytes, not str, because we want to
#encode it using utf-8 (just for safety).
self.output = sys.stdout.buffer
#Create all the data structures needed.
self.defCats = {}
self.defAttrs = {}
self.defVars = {}
self.defLists = {}
#Initialize all the compiler's components.
self.callStack = CallStack()
self.symbolTable = SymbolTable()
self.codeGenerator = AssemblyCodeGenerator() #here we set the code generator to use
self.eventHandler = EventHandler(self)
self.parser = ExpatParser(self)
def setUpLogging(self):
"""Set at least an error through stderr logger"""
self.formatString = '%(levelname)s: %(filename)s[%(lineno)d]:\t%(message)s'
self.logger = logging.getLogger('compiler')
errorHandler = logging.StreamHandler(sys.stderr)
errorHandler.setFormatter(logging.Formatter(self.formatString))
errorHandler.setLevel(logging.ERROR)
self.logger.addHandler(errorHandler)
def setDebug(self, fileName):
"""Set the debug capabilities using the file passed."""
self.debug = True
self.codeGenerator.debug = True
self.logger.setLevel(logging.DEBUG)
debugHandler = logging.FileHandler(filename=fileName, mode='w', encoding='utf-8')
debugHandler.setFormatter(logging.Formatter(self.formatString))
debugHandler.setLevel(logging.DEBUG)
self.logger.addHandler(debugHandler)
def compile(self):
try:
self.parser.parse(self.input.read())
self.output.write(self.codeGenerator.getWritableCode())
self.logger.debug(str(self.symbolTable))
except (CompilerError, Exception) as e:
if self.debug: self.logger.exception(e)
else: self.logger.error(e)
exit(1)
def __init__(self):
self.setUpLogging()
self.debug = False
self.input = sys.stdin
#We use 'buffer' to get a stream of bytes, not str, because we want to
#encode it using utf-8 (just for safety).
self.output = sys.stdout.buffer
#Create all the data structures needed.
self.defCats = {}
self.defAttrs = {}
self.defVars = {}
self.defLists = {}
#Initialize all the compiler's components.
self.callStack = CallStack()
self.symbolTable = SymbolTable()
self.codeGenerator = AssemblyCodeGenerator() #here we set the code generator to use
self.eventHandler = EventHandler(self)
self.parser = ExpatParser(self)
