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Associations are like Classes and can also have attributes

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This commit is contained in:
Joeri Exelmans 2024-10-21 14:59:01 +02:00
parent cfafbc2efa
commit 107f2f750e
1 changed files with 16 additions and 12 deletions
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28
concrete_syntax/textual_cd/parser.py
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@ -42,7 +42,7 @@ constraint: CODE | INDENTED_CODE
class_: [ABSTRACT] "class" IDENTIFIER [multiplicity] ["(" superclasses ")"] ["{" attrs [constraint] "}"]
association: "association" IDENTIFIER [multiplicity] IDENTIFIER "->" IDENTIFIER [multiplicity] ["{" [constraint] "}"]
association: "association" IDENTIFIER [multiplicity] IDENTIFIER "->" IDENTIFIER [multiplicity] ["{" attrs [constraint] "}"]
OPTIONAL: "optional"
@ -113,15 +113,7 @@ def parse_cd(state, m_text):
od.create_object(name, "GlobalConstraint")
_add_constraint_to_obj(name, constraint)
def class_(self, el):
[abstract, class_name, multiplicity, super_classes, attrs, constraint] = el
(lower, upper) = _handle_missing_multiplicity(multiplicity)
cd.create_class(class_name, abstract, lower, upper)
if super_classes != None:
for super_class in super_classes:
cd.create_inheritance(class_name, super_class)
if constraint != None:
_add_constraint_to_obj(class_name, constraint)
def process_attrs(self, attrs, class_name):
if attrs != None:
for attr in attrs:
(optional, attr_type, attr_name, constraint) = attr
@ -131,13 +123,25 @@ def parse_cd(state, m_text):
if constraint != None:
_add_constraint_to_obj(f"{class_name}_{attr_name}", constraint)
def class_(self, el):
[abstract, class_name, multiplicity, super_classes, attrs, constraint] = el
(lower, upper) = _handle_missing_multiplicity(multiplicity)
cd.create_class(class_name, abstract, lower, upper)
if super_classes != None:
for super_class in super_classes:
cd.create_inheritance(class_name, super_class)
if constraint != None:
_add_constraint_to_obj(class_name, constraint)
self.process_attrs(attrs, class_name)
def association(self, el):
[assoc_name, src_multiplicity, src_name, tgt_name, tgt_multiplicity, constraint] = el
[assoc_name, src_multiplicity, src_name, tgt_name, tgt_multiplicity, attrs, constraint] = el
(src_lower, src_upper) = _handle_missing_multiplicity(src_multiplicity)
(tgt_lower, tgt_upper) = _handle_missing_multiplicity(tgt_multiplicity)
cd.create_association(assoc_name, src_name, tgt_name, src_lower, src_upper, tgt_lower, tgt_upper)
if constraint != None:
_add_constraint_to_obj(class_name, constraint)
_add_constraint_to_obj(assoc_name, constraint)
self.process_attrs(attrs, assoc_name)
tree = parser.parse(m_text)
t = T(visit_tokens=True).transform(tree)