public object VisitClassStmt(Stmt.Class stmt)
{
Declare(stmt.Name);
Define(stmt.Name);
var enclosingClass = currentClass;
currentClass = ClassType.CLASS;
BeginScope();
scopes.Peek().Add("this", true);
stmt.Methods.ForEach(m =>
{
var declaration = FunctionType.METHOD;
if (m.name.Lexeme == "init")
{
declaration = FunctionType.INITIALIZER;
}
ResolveFunction(m, declaration);
});
currentClass = enclosingClass;
EndScope();
return(null);
}
public object VisitClassStmt(Stmt.Class stmt)
{
environment.Define(stmt.Name.Lexeme, null);
var methods = new Dictionary <string, LoxFunction>();
stmt.Methods.ForEach(m =>
{
var function = new LoxFunction(m, environment, m.name.Equals("init"));
methods.Add(m.name.Lexeme, function);
});
var klass = new LoxClass(stmt.Name.Lexeme, methods);
environment.Assign(stmt.Name, klass);
return(null);
}
object Stmt.IVisitor <object> .VisitClassStmt(Stmt.Class stmt)
{
ClassType enclosingClass = currentClass;
currentClass = ClassType.CLASS;
Declare(stmt.name);
if (stmt.superclass != null)
{
currentClass = ClassType.SUBCLASS;
BeginScope();
scopes.Peek()["super"] = true;
Resolve(stmt.superclass);
}
Define(stmt.name);
BeginScope();
scopes.Peek()["this"] = true;
foreach (Stmt.Function method in stmt.methods)
{
FunctionType declaration = FunctionType.METHOD;
if (method.name.lexeme.Equals("init"))
{
declaration = FunctionType.INITIALIZER;
}
ResolveFunction(method, declaration);
}
EndScope();
if (stmt.superclass != null)
{
EndScope();
}
currentClass = enclosingClass;
return(null);
}
object Stmt.IVisitor <object> .VisitClassStmt(Stmt.Class stmt)
{
object superclass = null;
if (stmt.superclass != null)
{
superclass = Evaluate(stmt.superclass);
if (!(superclass is LoxClass))
{
throw new RuntimeError(stmt.superclass.name, "Superclass must be a class.");
}
}
environment.Define(stmt.name.lexeme, null);
if (stmt.superclass != null)
{
environment = new Environment(environment);
environment.Define("super", superclass);
}
Dictionary <string, LoxFunction> methods = new Dictionary <string, LoxFunction>();
foreach (Stmt.Function method in stmt.methods)
{
LoxFunction function = new LoxFunction(method, environment, method.name.lexeme.Equals("init"));
methods[method.name.lexeme] = function;
}
LoxClass klass = new LoxClass(stmt.name.lexeme, (LoxClass)superclass, methods);
if (superclass != null)
{
environment = environment.enclosing;
}
environment.Assign(stmt.name, klass);
return(null);
}
public Void Visit(Stmt.Class stmt)
{
Declare(stmt.Name);
Define(stmt.Name);
var enclosingClass = currentClass;
currentClass = ClassType.Class;
if (stmt.Superclass != null)
{
currentClass = ClassType.Subclass;
Resolve(stmt.Superclass);
BeginScope();
scopes.Peek()["super"] = true;
}
BeginScope();
scopes.Peek()["this"] = true;
foreach (var method in stmt.Methods)
{
var decl = method.Name.Lexeme.Equals("init")
? FunctionType.Initializer
: FunctionType.Method;
ResolveFunction(method, decl);
}
EndScope();
if (stmt.Superclass != null)
{
EndScope();
}
currentClass = enclosingClass;
return(Void.Instance);
}
public Void Visit(Stmt.Class stmt)
{
environment.Define(stmt.Name.Lexeme, null);
object superclass = null;
if (stmt.Superclass != null)
{
superclass = Evaluate(stmt.Superclass);
if (!(superclass is LoxClass))
{
throw new RuntimeErrorException(stmt.Superclass.Name, "Superclass must be a class");
}
environment = new Environment(environment);
environment.Define("super", superclass);
}
var methods = new Dictionary <string, LoxFunction>();
foreach (var method in stmt.Methods)
{
var function = new LoxFunction(method, environment, method.Name.Lexeme.Equals("this"));
methods[method.Name.Lexeme] = function;
}
var klass = new LoxClass(stmt.Name.Lexeme, (LoxClass)superclass, methods);
if (superclass != null)
{
environment = environment.Enclosing;
}
environment.Assign(stmt.Name, klass);
return(null);
}