def p_factory(p):
'''factory : FACTORY ID LBRACE factory_creator factory_receiver RBRACE
| FACTORY ID LBRACE factory_creator RBRACE'''
if len(p) == 7:
p[0] = GenMsgAST.Factory(p[2], p[4], p[5])
p[0].linespan = (p.linespan(1)[0], p.linespan(6)[1])
elif len(p) == 6:
p[0] = GenMsgAST.Factory(p[2], p[4])
p[0].linespan = (p.linespan(1)[0], p.linespan(5)[1])
def p_native(p):
'''native : NATIVE ID LBRACE native_line_list RBRACE'''
# we should reverse the language list
# because the parse build it the other way around (recursive way)
p[4].reverse()
p[0] = GenMsgAST.NativeType(p[2], p[4])
p[0].linespan = (p.linespan(1)[0], p.linespan(5)[1])
def p_message(p):
'''message : MESSAGE ID LBRACE RBRACE
| MESSAGE ID LBRACE field_list RBRACE
| MESSAGE ID COLON MERGE ID LBRACE RBRACE
| MESSAGE ID COLON MERGE ID LBRACE field_list RBRACE'''
if len(p) == 5:
p[0] = GenMsgAST.MessageType(p[2], [], None)
elif len(p) == 6:
p[4].reverse()
p[0] = GenMsgAST.MessageType(p[2], p[4], None)
elif len(p) == 8:
p[0] = GenMsgAST.MessageType(p[2], [], p[5])
elif len(p) == 9:
p[7].reverse()
p[0] = GenMsgAST.MessageType(p[2], p[7], p[5])
p[0].linespan = (p.linespan(1)[0], p.linespan(len(p) - 1)[1])
def p_enum(p):
'''enum : ENUM ID LBRACE enum_value_list RBRACE'''
# we should reverse the enum value list
# because the parse build it the other way around (recursive way)
p[4].reverse()
p[0] = GenMsgAST.EnumType(p[2], p[4])
p[0].linespan = (p.linespan(1)[0], p.linespan(5)[1])
def p_comment_block(p):
'''comment_block : COMMENT
| COMMENT comment_block'''
if len(p) == 2:
p[0] = GenMsgAST.CommentBlock(p[1].strip('/'), isAtEOL=False)
else:
p[0] = p[2]
p[0].lines.append(p[1].strip('/'))
def p_eol_comment(p):
'''eol_comment : COMMENT
| empty'''
# we may store the comment text for future use
if len(p) > 1 and isinstance(p[1], type('')):
p[0] = GenMsgAST.CommentBlock(p[1].strip('/'), isAtEOL=True)
p[0].linespan = p.linespan(1)
else:
p[0] = ''
def p_version(p):
'''version : VERSION INTEGER_VALUE PERIOD INTEGER_VALUE'''
p[0] = GenMsgAST.Version((p[2], p[4]))
def p_package(p):
'''package : PACKAGE package_id'''
p[0] = GenMsgAST.Package(p[2])
p[0].linespan = (p.linespan(1)[0], p.linespan(2)[1])
if inputFile != None:
mainlogger.info('Parsing message file specifications...')
try:
msgFile = open(inputFile, 'r')
except IOError, e:
mainlogger.error('IOError raised: <' + str(e) + '>')
mainlogger.error('May be input file <%s> is unreadable or mispelled?'
% inputFile)
sys.exit()
else:
mainlogger.error('No input file given!!')
sys.exit()
lexer.lineno = 1
parser.AST = GenMsgAST.MessageAST(inputFile)
parser.parse(msgFile.read(), lexer=lexer, tracking=True)
parser.AST.messages.reverse()
parser.AST.enums.reverse()
parser.AST.natives.reverse()
if lexer.syntax:
msgFile.close()
mainlogger.info('Parse succeeded %s' % parser.AST)
mainlogger.info('Checking AST properties....')
checker = GenMsgAST.ASTChecker()
checker.check(parser.AST)
if parser.AST.checked:
mainlogger.info('AST properties checked Ok.')
else:
mainlogger.error('AST has error, generation step may produce invalid files!!!'