internal override IEnumerable <NameExpression> Walk()
{
Type = RedwoodType.Make(this);
base.Walk();
DeclaredVariable.KnownType = RedwoodType.GetForCSharpType(typeof(RedwoodType));
DeclaredVariable.DefinedConstant = true;
DeclaredVariable.ConstantValue = Type;
List <NameExpression> freeVars = new List <NameExpression>();
List <Variable> declaredVars = new List <Variable>();
// The set of variables which must be supplied when creating the interface
List <Variable> varsSupplied = new List <Variable>();
This = new Variable
{
Name = "this",
KnownType = null, // Dynamic since the reference isn't necessarily our own type
};
declaredVars.Add(This);
varsSupplied.Add(This);
foreach (FunctionDefinition method in Methods)
{
// Make sure that the method is a stub
if (method.Body != null)
{
throw new NotImplementedException();
}
freeVars.AddRange(method.Walk());
// As in the ClassDefinition, these need to be closured variables
method.DeclaredVariable.Closured = true;
varsSupplied.Add(method.DeclaredVariable);
}
// For every raw function and the this variable,
// we're going to need to take is as an argument
// for building the interface. Each of these should
// live on the stack as they are variables.
ArgumentVariables = varsSupplied
.Select(variable =>
new Variable
{
Name = variable.Name
}
)
.ToList();
SuppliedVariables = varsSupplied;
Overloads = Compiler.GenerateOverloads(Methods.ToList());
declaredVars.AddRange(Overloads.Select(o => o.variable));
foreach (Variable variable in declaredVars)
{
variable.Closured = true;
}
Variables = declaredVars;
// There is no need to match against the fields of the class as
// all methods are stubs, and no code is closured against the
// interface itself.
return(freeVars);
}
internal override IEnumerable <NameExpression> Walk()
{
Type = RedwoodType.Make(this);
base.Walk();
DeclaredVariable.KnownType = RedwoodType.GetForCSharpType(typeof(RedwoodType));
DeclaredVariable.DefinedConstant = true;
DeclaredVariable.ConstantValue = Type;
List <NameExpression> freeVars = new List <NameExpression>();
List <Variable> declaredVars = new List <Variable>();
InterfaceImplicitConversionVars = new List <Variable>();
int maxConstructorArgs = 0;
This = new Variable
{
Name = "this",
KnownType = Type
};
declaredVars.Add(This);
if (ParameterFields != null)
{
maxConstructorArgs = ParameterFields.Length;
foreach (ParameterDefinition param in ParameterFields)
{
freeVars.AddRange(param.Walk());
declaredVars.Add(param.DeclaredVariable);
}
}
foreach (TypeSyntax interfaceType in Interfaces)
{
freeVars.AddRange(interfaceType.Walk());
// TODO: What if we inherit an implicit, or if we
// a function that is meant to represent this, or
// an implicit declared function?
InterfaceImplicitConversionVars.Add(
new Variable
{
Name = RuntimeUtil.GetNameOfConversionToType(interfaceType.TypeName.Name),
Closured = true,
DefinedConstant = true
}
);
}
foreach (LetDefinition field in InstanceFields)
{
freeVars.AddRange(field.Walk());
declaredVars.Add(field.DeclaredVariable);
}
foreach (FunctionDefinition constructor in Constructors)
{
freeVars.AddRange(constructor.Walk());
maxConstructorArgs = Math.Max(maxConstructorArgs, constructor.Parameters.Length);
}
TempArgumentVariables = new List <Variable>();
for (int i = 0; i < maxConstructorArgs; i++)
{
TempArgumentVariables.Add(new Variable
{
Temporary = true
});
}
foreach (FunctionDefinition method in Methods)
{
freeVars.AddRange(method.Walk());
// Closure these variables even though they aren't in the
// object's map so that they can be directly accessed
method.DeclaredVariable.Closured = true;
}
Overloads = Compiler.GenerateOverloads(Methods.ToList());
declaredVars.AddRange(Overloads.Select(o => o.variable));
declaredVars.AddRange(InterfaceImplicitConversionVars);
MemberVariables = declaredVars;
// Make sure that all of our variables end up in the closure that
// makes up our RedwoodObject
foreach (Variable member in declaredVars)
{
member.Closured = true;
}
// Treat the class as a closure that can be populated and then
// updated by all methods.
Compiler.MatchVariables(freeVars, declaredVars);
// When it comes to static methods, we don't want to match to
// our own instance variables.
foreach (FunctionDefinition method in StaticMethods)
{
freeVars.AddRange(method.Walk());
}
StaticOverloads = Compiler.GenerateOverloads(StaticMethods.ToList());
return(freeVars);
}