public override object Evaluate(Water.List expressions)
{
if (expressions.Count != 2)
{
throw new Water.Error("Invalid arguments.\n\t" + expressions.ToString());
}
if (!(expressions[0] is Identifier))
{
throw new Water.Error("Invalid arguments.\n\t" + expressions.ToString());
}
string name = ((Identifier)expressions[0]).Value;
object value = Water.Evaluator.Evaluate(expressions[1]);
Water.Environment.DefineConstant(name, value);
return(null);
}
public override object Evaluate(Water.List expressions)
{
if (expressions.Count == 4)
{
if (!(expressions[0] is Water.Identifier))
{
throw new Water.Error("Invalid arguments.\n\t" + expressions.ToString());
}
string name = ((Water.Identifier)expressions[0]).Value;
string type_name = ((Water.Identifier)expressions[1]).Value;
string assembly_name = ((Water.Identifier)expressions[2]).Value;
if (!(expressions[3] is Water.Identifier))
{
throw new Water.Error("args[3] was not a valid method name.");
}
string method = ((Water.Identifier)expressions[3]).Value;
LoadMethod(name, type_name, assembly_name, method);
return(null);
}
else if (expressions.Count == 3)
{
if (!(expressions[0] is Water.Identifier))
{
throw new Water.Error("Invalid arguments.\n\t" + expressions.ToString());
}
string name = ((Water.Identifier)expressions[0]).Value;
System.Type type = (System.Type)Water.Evaluator.Evaluate(expressions[1]);
if (!(expressions[2] is Water.Identifier))
{
throw new Water.Error("args[2] was not a valid method name.");
}
string method = ((Water.Identifier)expressions[2]).Value;
LoadMethod(name, type, method);
return(null);
}
else
{
throw new Water.Error("Invalid arguments.\n\t" + expressions.ToString());
}
}
public override object Evaluate(Water.List expressions)
{
if (expressions.Count == 0)
{
throw new Water.Error("Invalid arguments.\n\t" + expressions.ToString());
}
System.Type type = (System.Type)Water.Evaluator.Evaluate(expressions[0]);
object[] parameters = new object[expressions.Count - 1];
for (int i = 1; i < expressions.Count; i++)
{
parameters[i - 1] = Water.Evaluator.Evaluate(expressions[i]);
if (parameters[i - 1] == null)
{
//TODO DELETE throw new Water.Error("Expression was null: " + expressions[i].ToString());
}
}
try
{
return(Activator.CreateInstance(type, parameters));
}
catch (System.MissingMethodException exception)
{
throw new System.Exception("Invalid arguments passed to constructor on '" + type.FullName + "'.", exception);
}
}
public override object Evaluate(Water.List expressions)
{
if (expressions.Count == 3)
{
string name = ((Water.Identifier)expressions[0]).Value;
string type_name = ((Water.Identifier)expressions[1]).Value;
string assembly_name = ((Water.Identifier)expressions[2]).Value;
this.LoadOperator(name, type_name, assembly_name);
return(null);
}
else if (expressions.Count == 2)
{
string name = ((Water.Identifier)expressions[0]).Value;
System.Type type = (System.Type)Water.Evaluator.Evaluate(expressions[1]);
this.LoadOperator(name, type);
return(null);
}
else
{
throw new Water.Error("Invalid arguments.\n\t" + expressions.ToString());
}
}
public override void Evaluate(Water.List expressions, Water.List statements)
{
if (expressions.Count != 3)
{
throw new Water.Error("Invalid arguments.\n\t" + expressions.ToString());
}
string itemName = ((Water.Identifier)expressions[0]).Value;
System.Collections.IEnumerable list = (System.Collections.IEnumerable)Water.Evaluator.Evaluate(expressions[2]);
// Copy list to allow modification.
System.Collections.ArrayList list2 = new System.Collections.ArrayList();
foreach (object item in list)
{
list2.Add(item);
}
bool first = true;
bool last = false;
int i = 1;
foreach (object item in list2)
{
if (i == list2.Count)
{
last = true;
}
//Push a stack frame
Water.Environment.Push();
Water.Environment.DefineVariable("first", first);
Water.Environment.DefineVariable("last", last);
Water.Environment.DefineVariable(itemName, item);
if (first)
{
first = false;
}
Water.Interpreter.Interpret(new StatementIterator(statements, true));
//Pop a stack frame.
Water.Environment.Pop();
if (Water.Environment.Break)
{
break;
}
i++;
}
if (Water.Environment.Break)
{
Water.Environment.Break = false;
}
}
public override void Evaluate(Water.List expressions, Water.List statements)
{
if (!(expressions[0] is Water.Identifier))
{
throw new Water.Error("Invalid arguments.\n\t" + expressions.ToString());
}
string name = ((Water.Identifier)expressions[0]).Value;
string namespace_ = (string)Water.Environment.Identify("_Namespace");
if (namespace_ != null && namespace_.Length > 0)
{
name = namespace_ + "." + name;
}
Water.Functions.Function function = new Water.Functions.Function(name);
for (int i = 1; i < expressions.Count; i++)
{
if (expressions[i] is Water.Identifier)
{
Water.Identifier identifier = (Water.Identifier)expressions[i];
function.Parameters.Add(identifier);
}
else if ((expressions[i] is Water.Quote))
{
Water.Quote quote = (Water.Quote)expressions[i];
Water.Identifier identifier = (Water.Identifier)quote.Expression;
function.Parameters.Add(new Water.Identifier("'" + identifier.Value));
}
else
{
throw new Water.Error("'" + expressions[i] + "' is not a valid parameter name.");
}
}
foreach (Water.Statement statement in statements)
{
function.Statements.Add(statement);
}
bool hasOptional = HasOptional(function.Parameters);
bool hasRest = HasRest(function.Parameters);
if (hasOptional && hasRest)
{
throw new Water.Error("Cannot have both optional and rest parameters: " + name);
}
else if (hasRest)
{
CheckRestLegal(name, function.Parameters);
}
Water.Environment.DefineConstant(function.Name, function);
}
public override void Evaluate(Water.List expressions, Water.List statements)
{
if (!(expressions[0] is Water.Identifier))
{
throw new Water.Error("Invalid arguments.\n\t" + expressions.ToString());
}
string name = ((Water.Identifier)expressions[0]).Value;
Water.Blocks.UserDefinedBlock userDefinedBlock = new Water.Blocks.UserDefinedBlock(name, expressions.NotFirst(), statements);
Water.Environment.DefineConstant(name, userDefinedBlock);
}
public override void Evaluate(Water.List expressions, Water.List statements)
{
if (expressions.Count != 1)
{
throw new Water.Error("Invalid arguments.\n\t" + expressions.ToString());
}
while (Water.Evaluator.EvaluateBoolean(expressions[0]) && !Water.Environment.Break)
{
Water.Interpreter.Interpret(new StatementIterator(statements, true));
}
if (Water.Environment.Break)
{
Water.Environment.Break = false;
}
}
public override object Evaluate(Water.List expressions)
{
if (expressions.Count == 1)
{
string type_name = ((Water.Identifier)expressions[0]).Value;
System.Type type = System.Type.GetType(type_name);
if (type == null)
{
throw new Water.Error("Cannot load type: " + type_name);
}
return(type);
}
else if (expressions.Count == 2)
{
string type_name = ((Water.Identifier)expressions[0]).Value;
string assembly_name = ((Water.Identifier)expressions[1]).Value;
System.Reflection.Assembly assembly = Water.AssemblyCache.LoadAssembly(assembly_name);
if (assembly == null)
{
assembly = System.Reflection.Assembly.LoadWithPartialName(assembly_name);
}
if (assembly == null)
{
throw new Water.Error("Cannot load assembly: " + assembly_name);
}
System.Type type = assembly.GetType(type_name);
if (type == null)
{
throw new Water.Error("Cannot load type: " + type_name);
}
return(type);
}
else
{
throw new Water.Error("Invalid arguments.\n\t" + expressions.ToString());
}
}
public override void Evaluate(Water.List expressions, Water.List statements)
{
if (expressions.Count != 1)
{
throw new Water.Error("Invalid arguments.\n\t" + expressions.ToString());
}
Water.Dictionary block = new Water.Dictionary();
block["else_if"] = new Water.List();
Water.List if_block = new Water.List();
block["if"] = if_block;
Water.List current_block = if_block;
foreach (Water.Statement block_statement in statements)
{
Water.List statement = (Water.List)block_statement.Expression;
if (statement.First() is Water.Identifier)
{
string tag = ((Water.Identifier)statement.First()).Value;
if (tag.Equals("if"))
{
current_block.Add(block_statement);
}
else if (statement.Count == 2 && tag.Equals("else_if"))
{
Water.Dictionary else_if_block = new Water.Dictionary();
//TODO use generics
((Water.List)block["else_if"]).Add(else_if_block);
else_if_block["Expressions"] = statement.NotFirst().First();
Water.List else_if_block_statements = new Water.List();
else_if_block["Statements"] = else_if_block_statements;
current_block = else_if_block_statements;
}
else if (statement.Count == 1 && tag.Equals("else")) // && depth == 0
{
Water.List else_block = new Water.List();
block["else"] = else_block;
current_block = else_block;
}
else if (statement.Count == 1 && tag.Equals("end_if"))
{
current_block.Add(block_statement);
}
else
{
current_block.Add(block_statement);
}
}
else
{
current_block.Add(block_statement);
}
}
if (Water.Evaluator.EvaluateBoolean(expressions[0]))
{
//TODO use generics
Water.Interpreter.Interpret(new StatementIterator((Water.List)block["if"], false));
return;
}
//TODO use generics
foreach (Water.Dictionary elseIf in (Water.List)block["else_if"])
{
if (Water.Evaluator.EvaluateBoolean(elseIf["Expressions"]))
{
//TODO use generics
Water.Interpreter.Interpret(new StatementIterator((Water.List)elseIf["Statements"], false));
return;
}
}
if (block["else"] != null)
{
//TODO use generics
Water.Interpreter.Interpret(new StatementIterator((Water.List)block["else"], false));
return;
}
}
public override void Evaluate(Water.List expressions, Water.List statements)
{
if (expressions.Count != 1)
{
throw new Water.Error("Invalid arguments.\n\t" + expressions.ToString());
}
object switch_expression = Water.Evaluator.Evaluate(expressions[0]);
Water.Dictionary block = new Water.Dictionary();
block["case"] = new Water.List();
Water.List current_block = null;
int depth = 0;
foreach (Water.Statement block_statement in statements)
{
//TODO use generics
Water.List statement = (Water.List)block_statement.Expression;
if (statement.Count == 2 && statement.First() is Water.Identifier && ((Water.Identifier)statement.First()).Value.Equals("case"))
{
Water.Dictionary case_block = new Water.Dictionary();
//TODO use generics
((Water.List)block["case"]).Add(case_block);
case_block["Expressions"] = statement.NotFirst().First();
Water.List case_block_statements = new Water.List();
case_block["Statements"] = case_block_statements;
current_block = case_block_statements;
}
else if (statement.First() is Water.Identifier)
{
string tag = ((Water.Identifier)statement.First()).Value;
if (tag.Equals("switch"))
{
current_block.Add(block_statement);
depth++;
}
//TODO No good.
else if (statement.Count == 1 && tag.Equals("end_switch"))
{
current_block.Add(block_statement);
depth--;
}
else if (statement.Count == 1 && tag.Equals("default") && depth == 0)
{
Water.List default_block = new Water.List();
block["default"] = default_block;
current_block = default_block;
}
else
{
current_block.Add(block_statement);
}
}
else
{
if (current_block == null)
{
//TODO file, line, column.
throw new Water.Error("Invalid statement in switch statement.");
}
current_block.Add(block_statement);
}
}
//TODO use generics
foreach (Water.Dictionary case_ in (Water.List)block["case"])
{
if (switch_expression.Equals(Water.Evaluator.Evaluate(case_["Expressions"])))
{
//TODO use generics
Water.Interpreter.Interpret(new StatementIterator((Water.List)case_["Statements"], false));
return;
}
}
if (block["default"] != null)
{
//TODO use generics
Water.Interpreter.Interpret(new StatementIterator((Water.List)block["default"], false));
return;
}
}
public override object Evaluate(Water.List expressions)
{
if (expressions.Count != 2)
{
throw new Water.Error("Invalid arguments.\n\t" + expressions.ToString());
}
if (!(expressions[0] is Water.Identifier))
{
throw new Water.Error("Invalid arguments.\n\t" + expressions.ToString());
}
string target = ((Water.Identifier)expressions[0]).Value;
if (target.IndexOf(".") != -1)
{
object o = Water.Evaluator.Evaluate(new Water.Identifier(target.Substring(0, target.LastIndexOf("."))));
string property_name = target.Substring(target.LastIndexOf(".") + ".".Length);
object value = Water.Evaluator.Evaluate(expressions[1]);
if (o is System.Collections.IDictionary)
{
System.Collections.IDictionary dictionary = (System.Collections.IDictionary)o;
dictionary[property_name] = value;
}
else
{
System.Reflection.FieldInfo fieldInfo = o.GetType().GetField(property_name);
if (fieldInfo != null)
{
fieldInfo.SetValue(o, value);
return(null);
}
else
{
foreach (System.ComponentModel.PropertyDescriptor propertyDescriptor in System.ComponentModel.TypeDescriptor.GetProperties(o))
{
if (propertyDescriptor.Name.ToLower().Equals(property_name.ToLower()))
{
propertyDescriptor.SetValue(o, value);
return(null);
}
}
foreach (System.Reflection.PropertyInfo propertyInfo in o.GetType().GetProperties())
{
if (propertyInfo.Name.ToLower().Equals(property_name.ToLower()))
{
propertyInfo.SetValue(o, value, new object[] { });
return(null);
}
}
throw new Water.Error("Property does not exist: " + property_name);
}
}
}
else
{
if (expressions.Count != 2)
{
throw new Water.Error("Invalid arguments.\n\t" + expressions.ToString());
}
if (!(expressions[0] is Identifier))
{
throw new Water.Error("Invalid arguments.\n\t" + expressions.ToString());
}
string name = ((Identifier)expressions[0]).Value;
Water.Environment.RedefineVariable(name, Water.Evaluator.Evaluate(expressions[1]));
}
return(null);
}
