def visit(self, ddispatch, scope, errs):
if not self.visit(ddispatch.instance, scope, errs):
return False
for arg in ddispatch.arguments:
if not self.visit(arg, scope, errs):
return False
m = scope.is_define_method(ddispatch.instance.static_type,
ddispatch.method)
if not m:
errs.append('Method {} not found at line {}'.format(
ddispatch.method, ddispatch.lineno))
return False
if len(ddispatch.arguments) != len(m) - 1:
errs.append(
'Missing arguments for method dispatch at line {}'.format(
ddispatch.lineno))
return False
for i in range(len(ddispatch.arguments)):
if not scope.inherit(ddispatch.arguments[i].static_type, m[i]):
errs.append(
'Type of argument {} does not conform declared type in function call at line {}'
.format(i + 1, ddispatch.lineno))
return False
ddispatch.static_type = ddispatch.instance.static_type if m[
-1] == 'SELF_TYPE' else m[-1]
return True
def visit(self, method, scope, errs):
for p in method.formal_params:
if not self.visit(p, scope, errs):
return False
child = scope.createChildScope()
for p in method.formal_params:
child.O(p.name, p.param_type)
if not self.visit(method.body, child, errs):
return False
t = scope.is_define_obj(
'self'
) if method.return_type == 'SELF_TYPE' else method.return_type
if not scope.is_define_type(t):
errs.append('Type {} is not defined at line {}'.format(
t, method.lineno))
return False
if not scope.inherit(method.body.static_type, t):
errs.append(
'Method {}\'s body type does not conform declared return type at line {}'
.format(method.name, method.lineno))
return False
if (scope.inherit(method.class_name, OBJECT_CLASS) and method.name in ['abort', 'copy', 'type_name']) or \
(scope.inherit(method.class_name, IO_CLASS) and method.name in ['in_int', 'in_string', 'out_int', 'out_string']) or \
(scope.inherit(method.class_name, STRING_CLASS) and method.name in ['length', 'concat', 'substr']):
errs.append(
'Built-in method {} cannot be redefined at line {}'.format(
method.name, method.lineno))
return None
method.static_type = t
return True
# if __name__ == "__main__":
# s = CoolParser()
# fpath = "/home/luis/Desktop/Cool-Compiler/cool-compiler-hieu-luis-alejandro/examples/mytest.cl"
# ast = None
# with open(fpath, encoding="utf-8") as file:
# cool_program_code = file.read()
# ast = s.parse(cool_program_code)
# semantic = Semananalyzer()
# semantic.analyze(ast)
def visit(self, sdispatch, scope, errs):
if not self.visit(sdispatch.instance, scope, errs):
return False
t = scope.is_define_obj(
'self'
) if sdispatch.dispatch_type == 'SELF_TYPE' else sdispatch.dispatch_type
if not scope.is_define_type(t):
errs.append('Type {} is not defined at line {}'.format(
t, sdispatch.lineno))
return False
if not scope.inherit(sdispatch.instance.static_type, t):
errs.append(
'Type to the left of @ : {} must conform the type specified to the right of @: {}, at line {}'
.format(sdispatch.instance.static_type, t, sdispatch.lineno))
return False
for arg in sdispatch.arguments:
if not self.visit(arg, scope, errs):
return False
m = scope.is_define_method(sdispatch.instance.static_type,
sdispatch.method)
if not m:
errs.append('Method {} not found at line {}'.format(
sdispatch.method, sdispatch.lineno))
return False
if len(sdispatch.arguments) != len(m) - 1:
errs.append(
'Missing arguments for method dispatch at line {}'.format(
sdispatch.lineno))
return False
for i in range(len(sdispatch.arguments)):
if not scope.inherit(sdispatch.arguments[i].static_type, m[i]):
errs.append(
'Type of argument {} does not conform declared type in function call at line {}'
.format(i + 1, sddispatch.lineno))
return False
sdispatch.static_type = sdispatch.instance.static_type if m[
-1] == 'SELF_TYPE' else m[-1]
return True
def visit(self, Assign, scope, errs):
if not self.visit(Assign.instance, scope, errs):
return False
if not self.visit(Assign.expr, scope, errs):
return False
if not scope.inherit(Assign.expr.static_type,
Assign.instance.static_type):
errs.append(
'Invalid assignment of incompatible types: {} <- {} at line {}'
.format(Assign.instance.static_type, Assign.expr.static_type,
Assign.lineno))
return False
Assign.static_type = Assign.expr.static_type
return True
def visit(self, attr, scope, errs):
t = scope.is_define_obj(
'self') if attr.attr_type == 'SELF_TYPE' else attr.attr_type
if not scope.is_define_type(t):
errs.append('Type {} is not defined at line {}'.format(
t, attr.lineno))
return False
if attr.init_expr:
if not self.visit(attr.init_expr, scope, errs):
return False
if not scope.inherit(attr.init_expr.static_type, t):
errs.append(
'Attribute initialization type does not conform declared type at line {}'
.format(attr.lineno))
return False
attr.static_type = t
return True
def visit(self, letvar, scope, errs):
t = scope.is_define_obj(
'self') if letvar.ttype == 'SELF_TYPE' else letvar.ttype
if not scope.is_define_type(t):
errs.append('Type {} is not defined at line {}'.format(
t, letvar.lineno))
return False
if letvar.initialization:
if not self.visit(letvar.initialization, scope, errs):
return False
if not scope.inherit(letvar.initialization.static_type, t):
errs.append(
"Type {} does not conform type {} at line {}".format(
letvar.initialization.static_type, t, letvar.lineno))
return False
scope.O(letvar.name, t)
letvar.static_type = letvar.initialization.static_type if letvar.initialization else t
return True