def VisitConstructorDecl(self, node):
node.env.Update(self.PassVisit(node.env, node.params))
self.ForkVisit(node.env, node.body)
env = Environment()
env.AddMethod(node.name.lexeme, node)
return env
def VisitLocalVarDecl(self, node):
self.ForkVisit(node.env, node.var_decl)
self.PassVisit(node.env, node.l_type)
env = Environment()
env.AddLocalVar(node.var_decl.var_id.lexeme, node)
return env
def VisitMethodHeader(self, node):
self.PassVisit(node.env, node.m_type)
self.PassVisit(node.env, node.params)
env = Environment()
env.Update(self.PassVisit(node.env, node.params))
return env
def VisitInterfaceDecl(self, node):
node.env.Update(self.ForkVisit(node.env, node.method_decls))
self.PassVisit(node.env, node.extends_interface)
env = Environment()
env.AddClassOrInterface(node.name.lexeme, node)
return env
def VisitMethodDecl(self, node):
node.env.Update(self.ForkVisit(node.env, node.header))
node.env.Update(self.ForkVisit(node.env, node.body_block))
env = Environment()
env.AddMethod(node.header.m_id.lexeme, node)
return env
def VisitFieldDecl(self, node):
node.env.Update(self.ForkVisit(node.env, node.var_decl))
self.PassVisit(node.env, node.f_type)
self.PassVisit(node.env, node.var_decl)
env = Environment()
env.AddField(node.var_decl.var_id.lexeme, node)
return env
def VisitClassDecl(self, node):
self.PassVisit(node.env, node.extends)
self.PassVisit(node.env, node.interfaces)
node.env.Update(self.ForkVisit(node.env, node.method_decls))
node.env.Update(self.ForkVisit(node.env, node.constructor_decls))
node.env.Update(self.ForkVisit(node.env, node.field_decls))
env = Environment()
env.AddClassOrInterface(node.name.lexeme, node)
return env
def VisitBlock(self, node):
env = node.env.upstream.Fork()
if node.stmts:
for stmt in node.stmts:
update = self.ForkVisit(env, stmt)
env = env.Fork()
env.Update(update)
return Environment.Empty()
def VisitImportDecl(self, node):
return Environment.Empty()
def VisitParameter(self, node):
self.PassVisit(node.env, node.p_type)
env = Environment()
env.AddParameter(node.var_id.lexeme, node)
return env
def VisitWhileStatement(self, node):
self.PassVisit(node.env, node.test_expr)
self.ForkVisit(node.env, node.body)
return Environment.Empty()
def VisitReturnStatement(self, node):
self.PassVisit(node.env, node.exp)
return Environment.Empty()
def VisitArrayCreationExpression(self, node):
self.PassVisit(node.env, node.a_type)
self.PassVisit(node.env, node.exp)
return Environment.Empty()
def VisitArrayAccess(self, node):
self.PassVisit(node.env, node.name_or_primary)
self.PassVisit(node.env, node.exp)
return Environment.Empty()
def VisitParensExpression(self, node):
self.PassVisit(node.env, node.exp)
return Environment.Empty()
def VisitEmptyStatement(self, node):
return Environment.Empty()
def VisitUnaryExpression(self, node):
self.PassVisit(node.env, node.right)
return Environment.Empty()
def VisitCastExpression(self, node):
self.PassVisit(node.env, node.cast_type)
self.PassVisit(node.env, node.exp)
return Environment.Empty()
def VisitPackageDecl(self, node):
env = Environment()
env.AddPackage(node.name.AsString(), node)
return env
def VisitFieldAccess(self, node):
self.PassVisit(node.env, node.primary)
return Environment.Empty()
def VisitNameExpression(self, node):
self.PassVisit(node.env, node.name)
return Environment.Empty()
def VisitThisExpression(self, node):
return Environment.Empty()
def VisitClassInstanceCreationExpression(self, node):
self.PassVisit(node.env, node.class_type)
self.PassVisit(node.env, node.args)
return Environment.Empty()
def VisitStatementExpression(self, node):
self.PassVisit(node.env, node.stmt)
return Environment.Empty()
def VisitForStatement(self, node):
node.env.Update(self.PassVisit(node.env, node.init))
self.PassVisit(node.env, node.test_expr)
self.PassVisit(node.env, node.update)
self.ForkVisit(node.env, node.body)
return Environment.Empty()
def VisitAssignmentExpression(self, node):
self.PassVisit(node.env, node.lhs)
self.PassVisit(node.env, node.exp)
return Environment.Empty()
def VisitVariableDeclarator(self, node):
self.PassVisit(node.env, node.exp)
return Environment.Empty()
def VisitMethodInvocation(self, node):
self.PassVisit(node.env, node.name)
self.PassVisit(node.env, node.primary)
self.PassVisit(node.env, node.args)
return Environment.Empty()
def VisitIfThenElseStatement(self, node):
self.PassVisit(node.env, node.test_expr)
self.ForkVisit(node.env, node.stmt_true)
self.ForkVisit(node.env, node.stmt_false)
return Environment.Empty()