public override string ToString()
{
if (operation == BlockOperation.Comment)
{
return(" // " + (string)parameter);
}
else if (operation == BlockOperation.MarkLabel)
{
return(" " + ((BlockLabel)parameter).Name + ":");
}
else if (operation == BlockOperation.DeclareLocal)
{
return(" local " + TypeNames.GetName(((BlockLocal)parameter).Type));
}
else if (operation == BlockOperation.BeginScope)
{
return(" {");
}
else if (operation == BlockOperation.EndScope)
{
return(" }");
}
else
{
throw new Exception();
}
}
public static object Convert(object o, Type type)
{
if ((o != null) && type.IsAssignableFrom(o.GetType()))
{
return(o);
}
else if (type == typeof(bool))
{
return(ToBool(o));
}
else if (type == typeof(double))
{
return(ToDouble(o));
}
else if (type == typeof(int))
{
return(ToInt(o));
}
else if (type == typeof(string))
{
return(ToString(o));
}
else if (type.IsArray)
{
return(ToArray(o, type));
}
else
{
throw new NotImplementedException(
"No conversion to " + TypeNames.GetName(type) + " from "
+ TypeNames.GetName(o.GetType()));
}
}
public static object GetMember(object obj, string member,
object[] parametersHint, bool throwIfUndefined)
{
if (obj is IScope)
{
// FIXME - shouldn't be using exceptions for this
try
{
return(((IScope)obj).GetName(member));
}
catch
{
}
}
MemberInfo memberInfo = FindMember(obj, member,
parametersHint);
if (memberInfo == null)
{
if (throwIfUndefined)
{
throw new Exception("can't find getable member "
+ TextEscape.Quote(member) + " in "
+ TypeNames.GetName(obj.GetType()));
}
else
{
return(null);
}
}
if (memberInfo is MethodInfo)
{
return(new ClrObjectMethodBinding(obj, (MethodInfo)memberInfo));
}
else if (memberInfo is PropertyInfo)
{
return(((PropertyInfo)memberInfo).GetValue(obj, null));
}
else if (memberInfo is FieldInfo)
{
object fieldValue = ((FieldInfo)memberInfo).GetValue(obj);
if (fieldValue is Method)
{
fieldValue = new ObjectMethodBinding(obj,
(Method)fieldValue);
}
return(fieldValue);
}
else
{
throw new Exception("can't get "
+ TypeNames.GetName(memberInfo.GetType()));
}
}
public ObjectViewHeader GetHeader(object obj)
{
IList list = (IList)obj;
return(new ObjectViewHeader(TypeNames.GetName(obj.GetType()),
list.Count > 0,
true));
}
public ObjectViewHeader GetHeader(object obj)
{
IDictionary dictionary = (IDictionary)obj;
return(new ObjectViewHeader(TypeNames.GetName(obj.GetType()),
dictionary.Count > 0,
true));
}
public ObjectViewHeader GetHeader(object obj)
{
Array array = (Array)obj;
return(new ObjectViewHeader(TypeNames.GetName(obj.GetType()),
array.Length > 0,
false));
}
public override ParseTree Parse(Lexer lexer, ParserState state)
{
int start = lexer.Position;
if (type == null)
{
throw new Exception();
}
if (state.RuntimeState.Runtime.TraceParser)
{
state.RuntimeState.Runtime.ParseTrace.Enter(this,
lexer.CurrentSource(),
"User defined node " + TypeNames.GetName(type));
}
object instance = NewNode.New(state.RuntimeState, type, null);
object parseMethod = MemberNode.GetMember(instance, "Parse", true);
object result = CallNode.Call(state.RuntimeState, parseMethod,
new object[] { lexer });
if (result == null)
{
result = ParseTree.Yes;
}
else if (result is bool)
{
if ((bool)result)
{
result = ParseTree.Yes;
}
else
{
result = ParseTree.No;
}
}
if (state.RuntimeState.Runtime.TraceParser)
{
if (result == ParseTree.No)
{
state.RuntimeState.Runtime.ParseTrace.No(this,
lexer.SourceFrom(start));
}
else
{
state.RuntimeState.Runtime.ParseTrace.Yes(this,
lexer.SourceFrom(start));
}
}
return((ParseTree)result);
}
public static object Not(object a)
{
if (a is bool)
{
return(!((bool)a));
}
else
{
throw new NotImplementedException(
"No not operator for "
+ TypeNames.GetName(a.GetType()));
}
}
public ObjectViewHeader GetHeader(object obj)
{
if (obj == null)
{
return(new ObjectViewHeader("null", false, false));
}
Type type = obj.GetType();
string description = string.Format("({0}) 0x{1:x}", TypeNames.GetName(type), obj.GetHashCode());
bool hasContents = GetFields(type).Length > 0;
return(new ObjectViewHeader(description, hasContents, false));
}
public static object Multiply(object a, object b)
{
if (a is int)
{
return((int)a * ConvertNode.ToInt(b));
}
else
{
throw new NotImplementedException(
"No multiply operator for "
+ TypeNames.GetName(a.GetType()) + " and "
+ (b == null ? "null" : TypeNames.GetName(b.GetType())));
}
}
public static bool SetMember(object obj, string member, object v,
bool throwIfUndefined)
{
if (obj is IScope)
{
// FIXME - shouldn't be using exceptions for this
try
{
((IScope)obj).SetName(member, v);
return(true);
}
catch
{
return(false);
}
}
MemberInfo memberInfo = FindMember(obj, member, null);
if (memberInfo == null)
{
if (throwIfUndefined)
{
throw new Exception("can't find setable " + member
+ " in " + obj.GetType());
}
else
{
return(false);
}
}
if (memberInfo is PropertyInfo)
{
((PropertyInfo)memberInfo).SetValue(obj, v, null);
}
else if (memberInfo is FieldInfo)
{
((FieldInfo)memberInfo).SetValue(obj, v);
}
else
{
throw new Exception("can't set "
+ TypeNames.GetName(memberInfo.GetType()));
}
return(true);
}
public static bool ToBool(object o)
{
if (o == null)
{
return(false);
}
else if (o is bool)
{
return((bool)o);
}
else
{
throw new NotImplementedException(
"No conversion to bool from " + TypeNames.GetName(o.GetType()));
}
}
public static object Add(object a, object b)
{
if (a is int)
{
return((int)a + ConvertNode.ToInt(b));
}
else if (a is string)
{
return((string)a + ConvertNode.ToString(b));
}
else
{
throw new NotImplementedException(
"No add operator for "
+ TypeNames.GetName(a.GetType()) + " and "
+ (b == null ? "null" : TypeNames.GetName(b.GetType())));
}
}
public static bool CompareLessOrEqual(object a, object b)
{
if (a is double || b is double)
{
return(ConvertNode.ToDouble(a) <= ConvertNode.ToDouble(b));
}
if (a is int)
{
return((int)a <= ConvertNode.ToInt(b));
}
else
{
throw new NotImplementedException(
"No less or equal comparision for "
+ TypeNames.GetName(a.GetType()) + " and "
+ (b == null ? "null" : TypeNames.GetName(b.GetType())));
}
}
private TreeIter Add(TreeIter parent, string prefix, RuntimeObject node)
{
Type type = node.GetType();
parent = store.AppendValues(parent, prefix + TypeNames.GetName(type), node);
// FIXME
try
{
foreach (string field in Pattern.PatternForType(type).Fields)
{
Add(parent, field + ": ", type.GetField(field).GetValue(node));
}
}
catch (Exception)
{
}
return(parent);
}
private void OnGrammarPatternDefined(Pattern pattern)
{
Application.Invoke(delegate
{
string name = TypeNames.GetName(pattern.Type);
if (pattern is AbstractPattern)
{
name += " (abstract)";
}
TreeIter iter = store.AppendValues(name, pattern);
AddNode(iter, pattern.ParseGraph);
patternPaths[pattern] = store.GetPath(iter);
signal.Send();
});
signal.WaitFor();
}
public static bool CompareInequality(object a, object b)
{
if (a is double || b is double)
{
return(ConvertNode.ToDouble(a) != ConvertNode.ToDouble(b));
}
if (a == null)
{
return(b != null);
}
else if (b == null)
{
return(true);
}
else if (a is int)
{
return((int)a != ConvertNode.ToInt(b));
}
else if (a is double)
{
return((double)a != ConvertNode.ToDouble(b));
}
else if (a is string)
{
return((string)a != ConvertNode.ToString(b));
}
else if (a is char)
{
return(a.ToString() != ConvertNode.ToString(b));
}
else
{
throw new NotImplementedException(
"No inequality comparision for "
+ TypeNames.GetName(a.GetType()) + " and "
+ (b == null ? "null" : TypeNames.GetName(b.GetType())));
}
}
public override string ToString()
{
if (parameter == null)
{
return(" " + op.ToString());
}
else if (parameter is string)
{
return(" " + op + " " + TextEscape.Quote((string)parameter));
}
else if (parameter is Type)
{
return(" " + op + " " + TypeNames.GetName((Type)parameter));
}
else if (parameter is FieldInfo)
{
FieldInfo field = (FieldInfo)parameter;
return(" " + op + " " + TypeNames.GetName(field.DeclaringType) + "::" + field.Name);
}
else if (parameter is MethodInfo)
{
MethodInfo method = (MethodInfo)parameter;
return(" " + op + " " + TypeNames.GetName(method.DeclaringType) + "::" + method.Name);
}
else if (parameter is ConstructorInfo)
{
ConstructorInfo constructor = (ConstructorInfo)parameter;
return(" " + op + " " + TypeNames.GetName(constructor.DeclaringType));
}
else if (parameter is BlockLocal)
{
return(" " + op + " " + TypeNames.GetName(((BlockLocal)parameter).Type));
}
else
{
return(" " + op + " " + parameter);
}
}
public static bool CompareGreater(object a, object b)
{
if (a is double || b is double)
{
return(ConvertNode.ToDouble(a) > ConvertNode.ToDouble(b));
}
if (a is int)
{
return((int)a > ConvertNode.ToInt(b));
}
else if (a is double)
{
return((double)a > ConvertNode.ToDouble(b));
}
else
{
throw new NotImplementedException(
"No greater comparision for "
+ TypeNames.GetName(a.GetType()) + " and "
+ (b == null ? "null" : TypeNames.GetName(b.GetType())));
}
}
public static object Divide(object a, object b)
{
if (a is double || b is double)
{
return(ConvertNode.ToDouble(a) / ConvertNode.ToDouble(b));
}
if (a is int)
{
return((int)a / ConvertNode.ToInt(b));
}
else if (a is double)
{
return((double)a / ConvertNode.ToDouble(b));
}
else
{
throw new NotImplementedException(
"No divide operator for "
+ TypeNames.GetName(a.GetType()) + " and "
+ (b == null ? "null" : TypeNames.GetName(b.GetType())));
}
}
public static int ToInt(object o)
{
if (o == null)
{
return(0);
}
else if (o is int)
{
return((int)o);
}
else if (o is double)
{
return((int)(double)o);
}
else if (o is string)
{
return(System.Convert.ToInt32((string)o));
}
else
{
throw new NotImplementedException(
"No conversion to int from " + TypeNames.GetName(o.GetType()));
}
}
private void AppendReturnType(StringBuilder str)
{
str.Append(TypeNames.GetName(Method.ReturnType));
}
public static object Call(RuntimeState state, object callable,
object[] parameters, bool wantRefParams, out bool[] refParams)
{
if (parameters == null)
{
parameters = new object[] {}
}
;
if (callable == null)
{
throw new NotImplementedException(
"No call operation for null");
}
else if (callable is ICallable)
{
return(((ICallable)callable).Call(state, parameters,
wantRefParams, out refParams));
}
else if (callable is MethodInfo)
{
ClrObjectMethodBinding binding
= new ClrObjectMethodBinding(null, (MethodInfo)callable);
return(binding.Call(state, parameters, wantRefParams,
out refParams));
}
else
{
object callMethod = MemberNode.GetMember(callable, "Call",
false);
if (callMethod == null)
{
throw new NotImplementedException(
"No call operation for "
+ TypeNames.GetName(callable.GetType()));
}
if (wantRefParams)
{
object getRefParamsMethod = MemberNode.GetMember(callable,
"GetRefParams", false);
if (getRefParamsMethod != null)
{
object refParamsObject = CallNode.Call(state,
getRefParamsMethod, null);
refParams = (bool[])ConvertNode.Convert(
refParamsObject, typeof(bool[]));
}
else
{
refParams = null;
}
}
else
{
refParams = null;
}
return(Call(state, callMethod, new object[] { parameters }));
}
}
}
public ObjectViewHeader GetHeader(object obj)
{
string description = string.Format("({0}) {1}", TypeNames.GetName(obj.GetType()), obj);
return(new ObjectViewHeader(description, false, false));
}
public void Build(IMethodBuilder builder)
{
//Dump();
ILGenerator il = builder.GetILGenerator();
Dictionary <BlockLabel, Label> labels
= new Dictionary <BlockLabel, Label>();
Dictionary <BlockLocal, LocalBuilder> locals
= new Dictionary <BlockLocal, LocalBuilder>();
foreach (IBlockLine line in (IEnumerable <IBlockLine>)lines)
{
BlockInstruction instruction = line as BlockInstruction;
if ((instruction != null) && (instruction.Operation == BlockOperation.MarkLabel))
{
labels[(BlockLabel)instruction.Parameter] = il.DefineLabel();
}
}
foreach (IBlockLine line in (IEnumerable <IBlockLine>)lines)
{
if (line is Instruction)
{
Instruction instruction = line as Instruction;
if (instruction.Parameter == null)
{
il.Emit(instruction.Op);
}
else if (instruction.Parameter is int)
{
il.Emit(instruction.Op, (int)instruction.Parameter);
}
else if (instruction.Parameter is string)
{
il.Emit(instruction.Op, (string)instruction.Parameter);
}
else if (instruction.Parameter is Type)
{
il.Emit(instruction.Op, (Type)instruction.Parameter);
}
else if (instruction.Parameter is FieldInfo)
{
il.Emit(instruction.Op, (FieldInfo)instruction.Parameter);
}
else if (instruction.Parameter is MethodInfo)
{
il.Emit(instruction.Op, (MethodInfo)instruction.Parameter);
}
else if (instruction.Parameter is ConstructorInfo)
{
il.Emit(instruction.Op, (ConstructorInfo)instruction.Parameter);
}
else if (instruction.Parameter is BlockLabel)
{
BlockLabel blockLabel = (BlockLabel)instruction.Parameter;
Label label;
if (!labels.TryGetValue(blockLabel, out label))
{
throw new Exception("Label " + blockLabel.Name + " not marked");
}
il.Emit(instruction.Op, label);
}
else if (instruction.Parameter is BlockLocal)
{
il.Emit(instruction.Op, locals[(BlockLocal)instruction.Parameter]);
}
else
{
throw new NotImplementedException(instruction.Op.Value + " " + TypeNames.GetName(instruction.Parameter.GetType()));
}
}
else if (line is BlockInstruction)
{
BlockInstruction instruction = line as BlockInstruction;
if (instruction.Operation == BlockOperation.Comment)
{
}
else if (instruction.Operation == BlockOperation.MarkLabel)
{
il.MarkLabel(labels[(BlockLabel)instruction.Parameter]);
}
else if (instruction.Operation == BlockOperation.DeclareLocal)
{
BlockLocal local = (BlockLocal)instruction.Parameter;
locals[local] = il.DeclareLocal(local.Type);
}
else if (instruction.Operation == BlockOperation.BeginScope)
{
il.BeginScope();
}
else if (instruction.Operation == BlockOperation.EndScope)
{
il.EndScope();
}
else
{
throw new Exception();
}
}
else
{
throw new Exception();
}
}
}
public virtual void Set(RuntimeState state, object v)
{
throw new NotImplementedException(TypeNames.GetName(GetType()));
}
private void AppendGenericDefinition(StringBuilder str)
{
if (Method.IsGenericMethod)
{
str.AppendFormat("<{0}>", string.Join(", ",
Method.GetGenericArguments().Select(x => TypeNames.GetName(x)).ToArray()));
}
}
public virtual void EmitSet(Block generator)
{
throw new NotImplementedException(TypeNames.GetName(GetType()));
}
public virtual object Get(RuntimeState state, object[] parametersHint)
{
throw new NotImplementedException(TypeNames.GetName(GetType()));
}
private void AppendParameters(StringBuilder str, int skip)
{
var parameters = Method.GetParameters().Skip(skip);
str.AppendFormat("({0})",
string.Join(", ",
parameters.Select(x => string.Format("{0}{1} {2}", GetParameterModifiers(x, true), TypeNames.GetName(x.ParameterType), x.Name)).ToArray()));
}
