public CallExpression(Expression inner,Expression[] arguments)
: base(inner)
{
if (arguments == null)
throw new ArgumentNullException("arguments");
this.arguments = arguments;
}
public override void Assign(CodeContext c,Expression source)
{
LocalBuilder local;
int parameter;
if (c.Locals.TryGetValue(variablename,out local))
{
Type type = source.Evaluate(c);
c.Convert(type,local.LocalType);
c.IL.Emit(OpCodes.Stloc,local);
}
else if (c.Parameters.TryGetValue(variablename,out parameter))
{
Type type = source.Evaluate(c);
c.Convert(type,c.ParameterTypes[parameter]);
if (c.Method.IsStatic)
{
c.IL.Emit(OpCodes.Starg,parameter);
}
else
{
c.IL.Emit(OpCodes.Starg,parameter + 1);
}
}
else
{
throw new ApplicationException();
}
}
public MemberExpression(Expression inner,string membername)
: base(inner)
{
if (membername == null)
throw new ArgumentNullException("membername");
this.membername = membername;
}
public override void Assign(CodeContext c,Expression source)
{
Type type = Inner.Evaluate(c);
MemberInfo member = GetMember(type,ScriptAccessType.Set);
if (member.MemberType == MemberTypes.Field)
{
FieldInfo field = (FieldInfo)member;
if (field.IsInitOnly || field.IsLiteral)
{
throw new ApplicationException();
}
Type sourcetype = source.Evaluate(c);
c.Convert(sourcetype,field.FieldType);
c.IL.Emit(OpCodes.Stfld,field);
}
else if (member.MemberType == MemberTypes.Property)
{
PropertyInfo property = (PropertyInfo)member;
if (!property.CanWrite)
{
throw new ApplicationException();
}
Type sourcetype = source.Evaluate(c);
c.Convert(sourcetype,property.PropertyType);
c.IL.Emit(OpCodes.Callvirt,property.GetSetMethod());
}
else
{
throw new ApplicationException();
}
}
public BinaryExpression(Expression left,Expression right)
{
if (left == null)
throw new ArgumentNullException("left");
if (right == null)
throw new ArgumentNullException("right");
this.left = left;
this.right = right;
}
public VarStatement(string variablename,Expression expression)
{
if (variablename == null)
throw new ArgumentNullException("variablename");
if (expression == null)
throw new ArgumentNullException("expression");
this.variablename = variablename;
this.expression = expression;
}
public WhileStatement(Expression condition,Statement loopstatement,Statement elsestatement)
{
if (condition == null)
throw new ArgumentNullException("condition");
if (loopstatement == null)
throw new ArgumentNullException("loopstatement");
if (elsestatement == null)
throw new ArgumentNullException("elsestatement");
this.condition = condition;
this.loopstatement = loopstatement;
this.elsestatement = elsestatement;
}
public IfStatement(Expression condition,Statement thenstatement,Statement elsestatement)
{
if (condition == null)
throw new ArgumentNullException("condition");
if (thenstatement == null)
throw new ArgumentNullException("thenstatement");
if (elsestatement == null)
throw new ArgumentNullException("elsestatement");
this.condition = condition;
this.thenstatement = thenstatement;
this.elsestatement = elsestatement;
}
public ForEachStatement(string variabletype,string variablename,Expression collection,Statement loopstatement,Statement elsestatement)
{
if (variabletype == null)
throw new ArgumentNullException("variabletype");
if (variablename == null)
throw new ArgumentNullException("variablename");
if (collection == null)
throw new ArgumentNullException("collection");
if (loopstatement == null)
throw new ArgumentNullException("loopstatement");
if (elsestatement == null)
throw new ArgumentNullException("elsestatement");
this.variabletype = variabletype;
this.variablename = variablename;
this.collection = collection;
this.loopstatement = loopstatement;
this.elsestatement = elsestatement;
}
public BitwiseNotExpression(Expression inner) : base(inner)
{
}
public virtual Type Invoke(CodeContext c,Expression[] arguments)
{
throw new ApplicationException();
}
public virtual void Assign(CodeContext c,Expression source)
{
throw new ApplicationException();
}
public ModuloExpression(Expression left,Expression right) : base(left,right)
{
}
public DivideExpression(Expression left,Expression right) : base(left,right)
{
}
public override Type Invoke(CodeContext c,Expression[] arguments)
{
Type type = Inner.Evaluate(c);
MemberInfo member = GetMember(type,ScriptAccessType.Invoke);
if (member.MemberType == MemberTypes.Method)
{
MethodInfo method = (MethodInfo)member;
ParameterInfo[] parameters = method.GetParameters();
if (parameters.Length != arguments.Length)
{
throw new ApplicationException();
}
for (int i = 0;i < arguments.Length;i++)
{
Type argumenttype = arguments[i].Evaluate(c);
c.Convert(argumenttype,parameters[i].ParameterType);
}
c.IL.Emit(OpCodes.Callvirt,method);
return method.ReturnType;
}
else
{
throw new ApplicationException();
}
}
public AssignmentExpression(Expression left,Expression right)
: base(left,right)
{
}
public LogicalNotExpression(Expression inner) : base(inner)
{
}
public LessExpression(Expression left,Expression right) : base(left,right)
{
}
public GreaterOrEqualExpression(Expression left,Expression right) : base(left,right)
{
}
public IsNotExpression(Expression left,Expression right) : base(left,right)
{
}
public EqualExpression(Expression left,Expression right) : base(left,right)
{
}
public NegateExpression(Expression inner) : base(inner)
{
}
public MultiplyExpression(Expression left,Expression right) : base(left,right)
{
}
public SubtractExpression(Expression left,Expression right) : base(left,right)
{
}
public BitwiseXorExpression(Expression left,Expression right) : base(left,right)
{
}
public LogicalAndExpression(Expression left,Expression right) : base(left,right)
{
}
public LeftShiftExpression(Expression left,Expression right) : base(left,right)
{
}
public ExpressionStatement(Expression expression)
{
if (expression == null)
throw new ArgumentNullException("expression");
this.expression = expression;
}
public UnaryExpression(Expression inner)
{
if (inner == null)
throw new ArgumentNullException("inner");
this.inner = inner;
}
public ReturnStatement(Expression expression)
{
// expression can be null
this.expression = expression;
}