public static void Register(Engine engine)
{
//@ class List<T>
TypeDef_Class ourType = TypeFactory.GetTypeDef_Class("List", new ArgList {
IntrinsicTypeDefs.TEMPLATE_0
}, false);
ClassDef classDef = engine.defaultContext.CreateClass("List", ourType, null, new List <string> {
"T"
});
classDef.childAllocator = () => {
return(new PebbleList());
};
classDef.Initialize();
//@ List<T> Add(T newValue, ...) or List<T> Push(T newValue, ...)
// Adds one or more elements to the end of the list.
// Cannot be used in a foreach loop.
{
FunctionValue_Host.EvaluateDelegate eval = (context, args, thisScope) => {
PebbleList scope = thisScope as PebbleList;
if (scope.enumeratingCount > 0)
{
context.SetRuntimeError(RuntimeErrorType.ForeachModifyingContainer, "Add: Attempt to modify a list that is being enumerated by a foreach loop.");
return(null);
}
var list = scope.list;
var listType = (TypeDef_Class)scope.classDef.typeDef;
var elementType = listType.genericTypes[0];
for (int ii = 0; ii < args.Count; ++ii)
{
object ret = args[ii];
list.Add(new Variable(null, elementType, ret));
}
return(thisScope);
};
FunctionValue_Host newValue = new FunctionValue_Host(ourType, new ArgList {
IntrinsicTypeDefs.TEMPLATE_0
}, eval, true, ourType);
classDef.AddMemberLiteral("Add", newValue.valType, newValue);
classDef.AddMemberLiteral("Push", newValue.valType, newValue);
}
//@ List<T> Clear()
// Removes all elements from the list.
// Cannot be used in a foreach loop.
{
FunctionValue_Host.EvaluateDelegate eval = (context, args, thisScope) => {
PebbleList pebList = thisScope as PebbleList;
if (pebList.enumeratingCount > 0)
{
context.SetRuntimeError(RuntimeErrorType.ForeachModifyingContainer, "Clear: Attempt to modify a list that is being enumerated by a foreach loop.");
return(null);
}
var list = pebList.list;
list.Clear();
return(thisScope);
};
FunctionValue_Host newValue = new FunctionValue_Host(ourType, new ArgList {
}, eval, false, ourType);
classDef.AddMemberLiteral("Clear", newValue.valType, newValue);
}
//@ num Count()
// Returns the number of elements in the list.
{
FunctionValue_Host.EvaluateDelegate eval = (context, args, thisScope) => {
var list = (thisScope as PebbleList).list;
return(System.Convert.ToDouble(list.Count));
};
FunctionValue_Host newValue = new FunctionValue_Host(IntrinsicTypeDefs.NUMBER, new ArgList {
}, eval, false, ourType);
classDef.AddMemberLiteral("Count", newValue.valType, newValue);
}
//@ T Get(num index)
// Returns the value of the element of the list at the given index.
{
FunctionValue_Host.EvaluateDelegate eval = (context, args, thisScope) => {
double dix = (double)args[0];
int ix = (int)dix;
var list = (thisScope as PebbleList).list;
// Bounds checking.
if (ix < 0 || ix >= list.Count)
{
context.SetRuntimeError(RuntimeErrorType.ArrayIndexOutOfBounds, "Get: Index " + ix + " out of bounds of array of length " + list.Count + ".");
return(null);
}
return(list[ix].value);
};
FunctionValue_Host newValue = new FunctionValue_Host(IntrinsicTypeDefs.TEMPLATE_0, new ArgList {
IntrinsicTypeDefs.NUMBER
}, eval, false, ourType);
classDef.AddMemberLiteral("Get", newValue.valType, newValue);
}
//@ List<T> Insert(num index, T item)
// Inserts a new element into the list at the given index. Existing elements at and after the given index are pushed further down the list.
// Cannot be used in a foreach loop.
{
FunctionValue_Host.EvaluateDelegate eval = (context, args, thisScope) => {
PebbleList scope = thisScope as PebbleList;
if (scope.enumeratingCount > 0)
{
context.SetRuntimeError(RuntimeErrorType.ForeachModifyingContainer, "Insert: Attempt to modify a list that is being enumerated by a foreach loop.");
return(null);
}
var list = scope.list;
var listType = (TypeDef_Class)scope.classDef.typeDef;
var elementType = listType.genericTypes[0];
var indexDouble = (double)args[0];
var item = args[1];
var index = Convert.ToInt32(indexDouble);
if (index < 0 || index > list.Count)
{
context.SetRuntimeError(RuntimeErrorType.ArrayIndexOutOfBounds, "Insert: array index out of bounds.");
return(null);
}
list.Insert(index, new Variable(null, elementType, item));
return(thisScope);
};
FunctionValue_Host newValue = new FunctionValue_Host(ourType, new ArgList {
IntrinsicTypeDefs.NUMBER, IntrinsicTypeDefs.TEMPLATE_0
}, eval, false, ourType);
classDef.AddMemberLiteral("Insert", newValue.valType, newValue);
}
//@ T Pop()
// Returns the value of the last element of the list and removes it from the list.
// Cannot be used in a foreach loop.
{
FunctionValue_Host.EvaluateDelegate eval = (context, args, thisScope) => {
PebbleList pebList = thisScope as PebbleList;
if (pebList.enumeratingCount > 0)
{
context.SetRuntimeError(RuntimeErrorType.ForeachModifyingContainer, "Pop: Attempt to remove an element from a list that is being enumerated in a foreach loop.");
return(null);
}
var list = pebList.list;
int ix = list.Count - 1;
if (ix < 0)
{
context.SetRuntimeError(RuntimeErrorType.ArrayIndexOutOfBounds, "Pop: List is empty.");
return(null);
}
var result = list[ix].value;
list.RemoveAt(ix);
return(result);
};
FunctionValue_Host newValue = new FunctionValue_Host(IntrinsicTypeDefs.TEMPLATE_0, new ArgList {
}, eval, false, ourType);
classDef.AddMemberLiteral("Pop", newValue.valType, newValue);
}
//@ List<T> RemoveAt(num index)
// Removes element at the given index, and returns the list.
// Cannot be used in a foreach loop.
{
FunctionValue_Host.EvaluateDelegate eval = (context, args, thisScope) => {
double dix = (double)args[0];
int ix = (int)dix;
PebbleList pebList = thisScope as PebbleList;
if (pebList.enumeratingCount > 0)
{
context.SetRuntimeError(RuntimeErrorType.ForeachModifyingContainer, "RemoveAt: Attempt to modify a list that is being enumerated by a foreach loop.");
return(null);
}
var list = pebList.list;
if (ix < 0 || ix >= list.Count)
{
context.SetRuntimeError(RuntimeErrorType.ArrayIndexOutOfBounds, "RemoveAt: Index " + ix + " out of bounds of array of length " + list.Count + ".");
return(null);
}
list.RemoveAt(ix);
return(thisScope);
};
FunctionValue_Host newValue = new FunctionValue_Host(ourType, new ArgList {
IntrinsicTypeDefs.NUMBER
}, eval, false, ourType);
classDef.AddMemberLiteral("RemoveAt", newValue.valType, newValue);
}
//@ List<T> RemoveRange(num start, num count)
// Removes elements in the given range of indices, and returns the list.
// Cannot be used in a foreach loop.
{
FunctionValue_Host.EvaluateDelegate eval = (context, args, thisScope) => {
double dstart = (double)args[0];
int start = (int)dstart;
double dcount = (double)args[1];
int count = (int)dcount;
PebbleList pebList = thisScope as PebbleList;
if (pebList.enumeratingCount > 0)
{
context.SetRuntimeError(RuntimeErrorType.ForeachModifyingContainer, "RemoveRange: Attempt to modify a list that is being enumerated by a foreach loop.");
return(null);
}
var list = pebList.list;
if (start < 0 || start >= list.Count)
{
context.SetRuntimeError(RuntimeErrorType.ArrayIndexOutOfBounds, "RemoveRange: Start " + start + " out of bounds of array of length " + list.Count + ".");
return(null);
}
if (count < 0)
{
context.SetRuntimeError(RuntimeErrorType.ArrayIndexOutOfBounds, "RemoveRange: Count (" + count + ") cannot be negative.");
return(null);
}
if ((start + count) >= list.Count)
{
context.SetRuntimeError(RuntimeErrorType.ArrayIndexOutOfBounds, "RemoveRange: Count " + count + " exceeds array length (" + list.Count + ").");
return(null);
}
list.RemoveRange(start, count);
return(thisScope);
};
FunctionValue_Host newValue = new FunctionValue_Host(ourType, new ArgList {
IntrinsicTypeDefs.NUMBER, IntrinsicTypeDefs.NUMBER
}, eval, false, ourType);
classDef.AddMemberLiteral("RemoveRange", newValue.valType, newValue);
}
//@ List<T> Reverse()
// Reverses the list and returns it.
{
FunctionValue_Host.EvaluateDelegate eval = (context, args, thisScope) => {
var list = (thisScope as PebbleList).list;
list.Reverse();
return(thisScope);
};
FunctionValue_Host newValue = new FunctionValue_Host(ourType, new ArgList {
}, eval, false, ourType);
classDef.AddMemberLiteral("Reverse", newValue.valType, newValue);
}
//@ List<T> Set(num index, T newValue)
// Changes the value of the element at the given index, and returns the list.
{
FunctionValue_Host.EvaluateDelegate eval = (context, args, thisScope) => {
double dix = (double)args[0];
int ix = (int)dix;
object value = args[1];
var list = (thisScope as PebbleList).list;
// Bounds checking.
if (ix < 0 || ix >= list.Count)
{
context.SetRuntimeError(RuntimeErrorType.ArrayIndexOutOfBounds, "Set: Index " + ix + " out of bounds of array of length " + list.Count + ".");
return(null);
}
list[ix].value = value;
return(thisScope);
};
FunctionValue_Host newValue = new FunctionValue_Host(ourType, new ArgList {
IntrinsicTypeDefs.NUMBER, IntrinsicTypeDefs.TEMPLATE_0
}, eval, false, ourType);
classDef.AddMemberLiteral("Set", newValue.valType, newValue);
}
//@ List<T> Shuffle()
// Shuffles the list, putting the elements in random order.
// Returns the list.
{
FunctionValue_Host.EvaluateDelegate eval = (context, args, thisScope) => {
var list = (thisScope as PebbleList).list;
Random rng = new Random();
int n = list.Count;
while (n > 1)
{
--n;
int k = rng.Next(n + 1);
Variable value = list[k];
list[k] = list[n];
list[n] = value;
}
return(thisScope);
};
FunctionValue_Host newValue = new FunctionValue_Host(ourType, new ArgList {
}, eval, false, ourType);
classDef.AddMemberLiteral("Shuffle", newValue.valType, newValue);
}
//@ List<T> Sort(functype<num(T, T>)> comparator)
// Sorts the list using the given comparator function.
// The comparator should behave the same as a C# Comparer. The first argument should be earlier in the
// list than the second, return a number < 0. If It should be later, return a number > 0. If their order
// is irrelevant, return 0.
{
FunctionValue_Host.EvaluateDelegate eval = (context, args, thisScope) => {
var list = (thisScope as PebbleList).list;
if (null == args[0])
{
context.SetRuntimeError(RuntimeErrorType.ArgumentInvalid, "Sort: comparator may not be null.");
return(null);
}
FunctionValue comparator = (FunctionValue)args[0];
List <object> argvals = new List <object>();
argvals.Add(0);
argvals.Add(0);
Comparison <Variable> hostComparator = new Comparison <Variable>(
(a, b) => {
argvals[0] = a.value;
argvals[1] = b.value;
// Note we use null instead of thisScope here. There is no way the sort function could be a
// class member because Sort's signature only takes function's whose type has no class.
double result = (double)comparator.Evaluate(context, argvals, null);
return(Convert.ToInt32(result));
}
);
list.Sort(hostComparator);
return(thisScope);
};
TypeDef_Function comparatorType = TypeFactory.GetTypeDef_Function(IntrinsicTypeDefs.NUMBER, new ArgList {
IntrinsicTypeDefs.TEMPLATE_0, IntrinsicTypeDefs.TEMPLATE_0
}, -1, false, null, false, false);
FunctionValue_Host newValue = new FunctionValue_Host(ourType, new ArgList {
comparatorType
}, eval, false, ourType);
classDef.AddMemberLiteral("Sort", newValue.valType, newValue);
}
//@ string ThisToScript(string prefix)
// ThisToScript is used by Serialize. A classes' ThisToScript function should return code which can rebuild the class.
// Note that it's only the content of the class, not the "new A" part. ie., it's the code that goes in the defstructor.
{
FunctionValue_Host.EvaluateDelegate eval = (context, args, thisScope) => {
string result = "";
string prefix = (string)args[0] + "\t";
var list = (thisScope as PebbleList).list;
for (int ii = 0; ii < list.Count; ++ii)
{
result += prefix + "Add(" + CoreLib.ValueToScript(context, list[ii].value, prefix + "\t", false) + ");\n";
}
return(result);
};
FunctionValue_Host newValue = new FunctionValue_Host(IntrinsicTypeDefs.STRING, new ArgList {
IntrinsicTypeDefs.STRING
}, eval, false, ourType);
classDef.AddMemberLiteral("ThisToScript", newValue.valType, newValue);
}
//@ string ToString()
// Returns a string representation of at least the first few elements of the list.
{
FunctionValue_Host.EvaluateDelegate eval = (context, args, thisScope) => {
var list = (thisScope as PebbleList).list;
string result = "List(" + list.Count + ")[";
for (int ii = 0; ii < Math.Min(4, list.Count); ++ii)
{
if (ii > 0)
{
result += ", ";
}
result += CoreLib.ValueToString(context, list[ii].value, true);
}
if (list.Count > 4)
{
result += ", ...";
}
return(result + "]");
};
FunctionValue_Host newValue = new FunctionValue_Host(IntrinsicTypeDefs.STRING, new ArgList {
}, eval, false, ourType);
classDef.AddMemberLiteral("ThisToString", newValue.valType, newValue);
}
classDef.FinalizeClass(engine.defaultContext);
UnitTests.testFuncDelegates.Add("CoreList", RunTests);
}
public static void Register(Engine engine)
{
//@ class Dictionary<K, V>
TypeDef_Class ourType = TypeFactory.GetTypeDef_Class("Dictionary", new ArgList {
IntrinsicTypeDefs.TEMPLATE_0, IntrinsicTypeDefs.TEMPLATE_1
}, false);
ClassDef classDef = engine.defaultContext.CreateClass("Dictionary", ourType, null, new List <string> {
"K", "V"
});
classDef.childAllocator = () => {
return(new PebbleDictionary());
};
classDef.Initialize();
//@ Dictionary<K, V> Add(K key, V value)
// Adds a new element to the dictionary.
// Cannot be used in a foreach loop.
{
FunctionValue_Host.EvaluateDelegate eval = (context, args, thisScope) => {
object key = args[0];
object value = args[1];
PebbleDictionary scope = thisScope as PebbleDictionary;
if (scope.enumeratingCount > 0)
{
context.SetRuntimeError(RuntimeErrorType.ForeachModifyingContainer, "Add: Attempt to modify a dictionary that is being enumerated by a foreach loop.");
return(null);
}
var dictionary = scope.dictionary;
var dictionaryType = (TypeDef_Class)scope.classDef.typeDef;
var valueType = dictionaryType.genericTypes[1];
if (dictionary.ContainsKey(key))
{
context.SetRuntimeError(RuntimeErrorType.KeyAlreadyExists, "Dictionary already contains key '" + key + "'.");
return(null);
}
dictionary.Add(key, new Variable(null, valueType, value));
return(thisScope);
};
FunctionValue_Host newValue = new FunctionValue_Host(ourType, new ArgList {
IntrinsicTypeDefs.TEMPLATE_0, IntrinsicTypeDefs.TEMPLATE_1
}, eval, false, ourType);
classDef.AddMemberLiteral("Add", newValue.valType, newValue);
}
//@ Dictionary<K, V> Clear()
// Removes all elements from the dictionary.
// Cannot be used in a foreach loop.
{
FunctionValue_Host.EvaluateDelegate eval = (context, args, thisScope) => {
PebbleDictionary pebDict = thisScope as PebbleDictionary;
var dictionary = pebDict.dictionary;
if (pebDict.enumeratingCount > 0)
{
context.SetRuntimeError(RuntimeErrorType.ForeachModifyingContainer, "Clear: Attempt to modify a dictionary that is being enumerated by a foreach loop.");
return(null);
}
dictionary.Clear();
return(thisScope);
};
FunctionValue_Host newValue = new FunctionValue_Host(ourType, new ArgList {
}, eval, false, ourType);
classDef.AddMemberLiteral("Clear", newValue.valType, newValue);
}
//@ bool ContainsKey(K)
// Returns true iff the dictionary contains an element with the given key.
{
FunctionValue_Host.EvaluateDelegate eval = (context, args, thisScope) => {
object key = args[0];
PebbleDictionary pebDict = thisScope as PebbleDictionary;
var dictionary = pebDict.dictionary;
return(dictionary.ContainsKey(key));
};
FunctionValue_Host newValue = new FunctionValue_Host(IntrinsicTypeDefs.BOOL, new ArgList {
IntrinsicTypeDefs.TEMPLATE_0
}, eval, false, ourType);
classDef.AddMemberLiteral("ContainsKey", newValue.valType, newValue);
}
//@ num Count()
// Returns number of elements in the dictionary.
{
FunctionValue_Host.EvaluateDelegate eval = (context, args, thisScope) => {
var dictionary = (thisScope as PebbleDictionary).dictionary;
return(System.Convert.ToDouble(dictionary.Count));
};
FunctionValue_Host newValue = new FunctionValue_Host(IntrinsicTypeDefs.NUMBER, new ArgList {
}, eval, false, ourType);
classDef.AddMemberLiteral("Count", newValue.valType, newValue);
}
//@ V Get(K)
// Returns the value of the element with the given key.
{
FunctionValue_Host.EvaluateDelegate eval = (context, args, thisScope) => {
object key = args[0];
PebbleDictionary pebDict = thisScope as PebbleDictionary;
// Bounds checking.
var dictionary = pebDict.dictionary;
if (!dictionary.ContainsKey(key))
{
context.SetRuntimeError(RuntimeErrorType.KeyNotFound, "Get: Key '" + key + "' not in dictionary.");
return(null);
}
return(dictionary[key].value);
};
FunctionValue_Host newValue = new FunctionValue_Host(IntrinsicTypeDefs.TEMPLATE_1, new ArgList {
IntrinsicTypeDefs.TEMPLATE_0
}, eval, false, ourType);
classDef.AddMemberLiteral("Get", newValue.valType, newValue);
}
//@ Dictionary<K, V> Remove(K key)
// Removes element with given key.
// Cannot be used in a foreach loop.
{
FunctionValue_Host.EvaluateDelegate eval = (context, args, thisScope) => {
object key = args[0];
PebbleDictionary pebDict = thisScope as PebbleDictionary;
var dictionary = pebDict.dictionary;
if (pebDict.enumeratingCount > 0)
{
context.SetRuntimeError(RuntimeErrorType.ForeachModifyingContainer, "Remove: Attempt to modify a dictionary that is being enumerated by a foreach loop.");
return(null);
}
if (!dictionary.ContainsKey(key))
{
context.SetRuntimeError(RuntimeErrorType.KeyNotFound, "Remove: Key '" + key + "' not in dictionary.");
return(null);
}
dictionary.Remove(key);
return(thisScope);
};
FunctionValue_Host newValue = new FunctionValue_Host(ourType, new ArgList {
IntrinsicTypeDefs.TEMPLATE_0
}, eval, false, ourType);
classDef.AddMemberLiteral("Remove", newValue.valType, newValue);
}
//@ Dictionary<K, V> Set(K key, V newValue)
// Replaces value of existing element with the given key.
{
FunctionValue_Host.EvaluateDelegate eval = (context, args, thisScope) => {
object key = args[0];
object value = args[1];
var dictionary = (thisScope as PebbleDictionary).dictionary;
// Bounds checking.
if (!dictionary.ContainsKey(key))
{
context.SetRuntimeError(RuntimeErrorType.KeyNotFound, "Get: Key '" + key + "' not in dictionary.");
return(null);
}
dictionary[key].value = value;
return(thisScope);
};
FunctionValue_Host newValue = new FunctionValue_Host(ourType, new ArgList {
IntrinsicTypeDefs.TEMPLATE_0, IntrinsicTypeDefs.TEMPLATE_1
}, eval, false, ourType);
classDef.AddMemberLiteral("Set", newValue.valType, newValue);
}
//@ string ThisToScript(string prefix)
// ThisToScript is used by Serialize. A classes' ThisToScript function should return code which can rebuild the class.
// Note that it's only the content of the class, not the "new A" part. ie., it's the code that goes in the defstructor.
{
FunctionValue_Host.EvaluateDelegate eval = (context, args, thisScope) => {
string result = "";
string prefix = (string)args[0] + "\t";
var dictionary = (thisScope as PebbleDictionary).dictionary;
//bool first = true;
foreach (KeyValuePair <object, Variable> kvp in dictionary)
{
result += prefix + "Add(" + CoreLib.ValueToScript(context, kvp.Key, prefix + "\t", false) + ", " + CoreLib.ValueToScript(context, kvp.Value.value, prefix + "\t", false) + ");\n";
}
return(result);
};
FunctionValue_Host newValue = new FunctionValue_Host(IntrinsicTypeDefs.STRING, new ArgList {
IntrinsicTypeDefs.STRING
}, eval, false, ourType);
classDef.AddMemberLiteral("ThisToScript", newValue.valType, newValue);
}
//@ string ToString()
// Returns a human readable version of at least the first few elements of the dictionary.
{
FunctionValue_Host.EvaluateDelegate eval = (context, args, thisScope) => {
var dictionary = (thisScope as PebbleDictionary).dictionary;
string result = "Dictionary(" + dictionary.Count + ")[";
int count = 0;
foreach (KeyValuePair <object, Variable> kvp in dictionary)
{
if (count != 0)
{
result += ", ";
}
result += "(" + CoreLib.ValueToString(context, kvp.Key, true) + ", " + CoreLib.ValueToString(context, kvp.Value.value, true) + ")";
if (++count >= 4)
{
break;
}
}
if (dictionary.Count > 4)
{
result += ", ...";
}
return(result + "]");
};
FunctionValue_Host newValue = new FunctionValue_Host(IntrinsicTypeDefs.STRING, new ArgList {
}, eval, false, ourType);
classDef.AddMemberLiteral("ThisToString", newValue.valType, newValue);
}
bool error = false;
classDef.FinalizeClass(engine.defaultContext);
Pb.Assert(!error);
UnitTests.testFuncDelegates.Add("CoreDictionary", RunTests);
}
