private Translate(RuleNode ruleNode, ScopeGroup root, VarCollection varCollection, UserMethod[] userMethods)
{
Root = root;
VarCollection = varCollection;
UserMethods = userMethods;
Rule = new Rule(ruleNode.Name, ruleNode.Event, ruleNode.Team, ruleNode.Player);
IsGlobal = Rule.IsGlobal;
ContinueSkip = new ContinueSkip(IsGlobal, Actions, varCollection);
ParseConditions(ruleNode.Conditions);
ParseBlock(root.Child(), ruleNode.Block, false, null);
Rule.Actions = Actions.ToArray();
Rule.Conditions = Conditions.ToArray();
// Fufill remaining skips
foreach (var skip in ReturnSkips)
{
skip.ParameterValues = new IWorkshopTree[] { new V_Number(Actions.Count - ReturnSkips.IndexOf(skip)) }
}
;
ReturnSkips.Clear();
}
void ParseConditions(IExpressionNode[] expressions)
{
foreach (var expr in expressions)
{
Element parsedIf = ParseExpression(Root, expr);
// If the parsed if is a V_Compare, translate it to a condition.
// Makes "(value1 == value2) == true" to just "value1 == value2"
if (parsedIf is V_Compare)
{
Element left = (Element)parsedIf.ParameterValues[0];
if (!left.ElementData.IsValue)
{
throw SyntaxErrorException.InvalidMethodType(true, left.Name, ((Node)expr).Range);
}
Element right = (Element)parsedIf.ParameterValues[2];
if (!right.ElementData.IsValue)
{
throw SyntaxErrorException.InvalidMethodType(true, right.Name, ((Node)expr).Range);
}
Conditions.Add(
new Condition(
left,
(EnumMember)parsedIf.ParameterValues[1],
right
)
);
}
// If not, just do "parsedIf == true"
else
{
if (!parsedIf.ElementData.IsValue)
{
throw SyntaxErrorException.InvalidMethodType(true, parsedIf.Name, ((Node)expr).Range);
}
Conditions.Add(new Condition(
parsedIf, EnumData.GetEnumValue(Operators.Equal), new V_True()
));
}
}
}
Element ParseExpression(ScopeGroup scope, IExpressionNode expression)
{
switch (expression)
{
// Math and boolean operations.
case OperationNode operationNode:
{
Element left = ParseExpression(scope, operationNode.Left);
Element right = ParseExpression(scope, operationNode.Right);
/*
* if (Constants.BoolOperations.Contains(operationNode.Operation))
* {
* if (left.ElementData.ValueType != Elements.ValueType.Any && left.ElementData.ValueType != Elements.ValueType.Boolean)
* throw new SyntaxErrorException($"Expected boolean, got {left .ElementData.ValueType.ToString()} instead.", ((Node)operationNode.Left).Range);
*
* if (right.ElementData.ValueType != Elements.ValueType.Any && right.ElementData.ValueType != Elements.ValueType.Boolean)
* throw new SyntaxErrorException($"Expected boolean, got {right.ElementData.ValueType.ToString()} instead.", ((Node)operationNode.Right).Range);
* }
*/
switch (operationNode.Operation)
{
// Math: ^, *, %, /, +, -
case "^":
return(Element.Part <V_RaiseToPower>(left, right));
case "*":
return(Element.Part <V_Multiply>(left, right));
case "%":
return(Element.Part <V_Modulo>(left, right));
case "/":
return(Element.Part <V_Divide>(left, right));
case "+":
return(Element.Part <V_Add>(left, right));
case "-":
return(Element.Part <V_Subtract>(left, right));
// BoolCompare: &, |
case "&":
return(Element.Part <V_And>(left, right));
case "|":
return(Element.Part <V_Or>(left, right));
// Compare: <, <=, ==, >=, >, !=
case "<":
return(Element.Part <V_Compare>(left, EnumData.GetEnumValue(Operators.LessThan), right));
case "<=":
return(Element.Part <V_Compare>(left, EnumData.GetEnumValue(Operators.LessThanOrEqual), right));
case "==":
return(Element.Part <V_Compare>(left, EnumData.GetEnumValue(Operators.Equal), right));
case ">=":
return(Element.Part <V_Compare>(left, EnumData.GetEnumValue(Operators.GreaterThanOrEqual), right));
case ">":
return(Element.Part <V_Compare>(left, EnumData.GetEnumValue(Operators.GreaterThan), right));
case "!=":
return(Element.Part <V_Compare>(left, EnumData.GetEnumValue(Operators.NotEqual), right));
}
throw new Exception($"Operation {operationNode.Operation} not implemented.");
}
// Number
case NumberNode numberNode:
return(new V_Number(numberNode.Value));
// Bool
case BooleanNode boolNode:
if (boolNode.Value)
{
return(new V_True());
}
else
{
return(new V_False());
}
// Not operation
case NotNode notNode:
return(Element.Part <V_Not>(ParseExpression(scope, notNode.Value)));
// Strings
case StringNode stringNode:
Element[] stringFormat = new Element[stringNode.Format?.Length ?? 0];
for (int i = 0; i < stringFormat.Length; i++)
{
stringFormat[i] = ParseExpression(scope, stringNode.Format[i]);
}
return(V_String.ParseString(stringNode.Range, stringNode.Value, stringFormat));
// Null
case NullNode nullNode:
return(new V_Null());
// TODO check if groups need to be implemented here
// Methods
case MethodNode methodNode:
return(ParseMethod(scope, methodNode, true));
// Variable
case VariableNode variableNode:
return(scope.GetVar(variableNode.Name, variableNode.Range, Diagnostics)
.GetVariable(variableNode.Target != null ? ParseExpression(scope, variableNode.Target) : null));
// Get value in array
case ValueInArrayNode viaNode:
return(Element.Part <V_ValueInArray>(ParseExpression(scope, viaNode.Value), ParseExpression(scope, viaNode.Index)));
// Create array
case CreateArrayNode createArrayNode:
{
Element prev = null;
Element current = null;
for (int i = 0; i < createArrayNode.Values.Length; i++)
{
current = new V_Append()
{
ParameterValues = new IWorkshopTree[2]
};
if (prev != null)
{
current.ParameterValues[0] = prev;
}
else
{
current.ParameterValues[0] = new V_EmptyArray();
}
current.ParameterValues[1] = ParseExpression(scope, createArrayNode.Values[i]);
prev = current;
}
return(current ?? new V_EmptyArray());
}
case EnumNode enumNode:
return(EnumData.Special(enumNode.EnumMember)
?? throw SyntaxErrorException.EnumCantBeValue(enumNode.Type, enumNode.Range));
// Seperator
}
throw new Exception();
}
Element ParseMethod(ScopeGroup scope, MethodNode methodNode, bool needsToBeValue)
{
methodNode.RelatedScopeGroup = scope;
// Get the kind of method the method is (Method (Overwatch), Custom Method, or User Method.)
var methodType = GetMethodType(UserMethods, methodNode.Name);
// Throw exception if the method does not exist.
if (methodType == null)
{
throw SyntaxErrorException.NonexistentMethod(methodNode.Name, methodNode.Range);
}
Element method;
switch (methodType)
{
case MethodType.Method:
{
Type owMethod = Element.GetMethod(methodNode.Name);
method = (Element)Activator.CreateInstance(owMethod);
Parameter[] parameterData = owMethod.GetCustomAttributes <Parameter>().ToArray();
List <IWorkshopTree> parsedParameters = new List <IWorkshopTree>();
for (int i = 0; i < parameterData.Length; i++)
{
if (methodNode.Parameters.Length > i)
{
// Parse the parameter.
parsedParameters.Add(ParseParameter(scope, methodNode.Parameters[i], methodNode.Name, parameterData[i]));
}
else
{
if (parameterData[i].ParameterType == ParameterType.Value && parameterData[i].DefaultType == null)
{
// Throw exception if there is no default method to fallback on.
throw SyntaxErrorException.MissingParameter(parameterData[i].Name, methodNode.Name, methodNode.Range);
}
else
{
parsedParameters.Add(parameterData[i].GetDefault());
}
}
}
method.ParameterValues = parsedParameters.ToArray();
break;
}
case MethodType.CustomMethod:
{
MethodInfo customMethod = CustomMethods.GetCustomMethod(methodNode.Name);
Parameter[] parameterData = customMethod.GetCustomAttributes <Parameter>().ToArray();
object[] parsedParameters = new Element[parameterData.Length];
for (int i = 0; i < parameterData.Length; i++)
{
if (methodNode.Parameters.Length > i)
{
parsedParameters[i] = ParseParameter(scope, methodNode.Parameters[i], methodNode.Name, parameterData[i]);
}
else
{
// Throw exception if there is no default method to fallback on.
throw SyntaxErrorException.MissingParameter(parameterData[i].Name, methodNode.Name, methodNode.Range);
}
}
MethodResult result = (MethodResult)customMethod.Invoke(null, new object[] { IsGlobal, VarCollection, parsedParameters });
switch (result.MethodType)
{
case CustomMethodType.Action:
if (needsToBeValue)
{
throw SyntaxErrorException.InvalidMethodType(true, methodNode.Name, methodNode.Range);
}
break;
case CustomMethodType.MultiAction_Value:
case CustomMethodType.Value:
if (!needsToBeValue)
{
throw SyntaxErrorException.InvalidMethodType(false, methodNode.Name, methodNode.Range);
}
break;
}
// Some custom methods have extra actions.
if (result.Elements != null)
{
Actions.AddRange(result.Elements);
}
method = result.Result;
break;
}
case MethodType.UserMethod:
{
if (!AllowRecursion)
{
UserMethod userMethod = UserMethod.GetUserMethod(UserMethods, methodNode.Name);
if (MethodStackNoRecursive.Contains(userMethod))
{
throw SyntaxErrorException.RecursionNotAllowed(methodNode.Range);
}
var methodScope = Root.Child();
// Add the parameter variables to the scope.
DefinedVar[] parameterVars = new DefinedVar[userMethod.Parameters.Length];
for (int i = 0; i < parameterVars.Length; i++)
{
if (methodNode.Parameters.Length > i)
{
// Create a new variable using the parameter input.
parameterVars[i] = VarCollection.AssignDefinedVar(methodScope, IsGlobal, userMethod.Parameters[i].Name, methodNode.Range);
Actions.Add(parameterVars[i].SetVariable(ParseExpression(scope, methodNode.Parameters[i])));
}
else
{
throw SyntaxErrorException.MissingParameter(userMethod.Parameters[i].Name, methodNode.Name, methodNode.Range);
}
}
var returns = VarCollection.AssignVar($"{methodNode.Name}: return temp value", IsGlobal);
MethodStackNoRecursive.Add(userMethod);
var userMethodScope = methodScope.Child();
userMethod.Block.RelatedScopeGroup = userMethodScope;
ParseBlock(userMethodScope, userMethod.Block, true, returns);
MethodStackNoRecursive.Remove(userMethod);
// No return value if the method is being used as an action.
if (needsToBeValue)
{
method = returns.GetVariable();
}
else
{
method = null;
}
break;
}
else
{
UserMethod userMethod = UserMethod.GetUserMethod(UserMethods, methodNode.Name);
MethodStack lastMethod = MethodStack.FirstOrDefault(ms => ms.UserMethod == userMethod);
if (lastMethod != null)
{
ContinueSkip.Setup();
for (int i = 0; i < lastMethod.ParameterVars.Length; i++)
{
if (methodNode.Parameters.Length > i)
{
Actions.Add(lastMethod.ParameterVars[i].Push(ParseExpression(scope, methodNode.Parameters[i])));
}
}
// ?--- Multidimensional Array
Actions.Add(
Element.Part <A_SetGlobalVariable>(EnumData.GetEnumValue(Variable.B), lastMethod.ContinueSkipArray.GetVariable())
);
Actions.Add(
Element.Part <A_ModifyGlobalVariable>(EnumData.GetEnumValue(Variable.B), EnumData.GetEnumValue(Operation.AppendToArray), new V_Number(ContinueSkip.GetSkipCount() + 4))
);
Actions.Add(
lastMethod.ContinueSkipArray.SetVariable(Element.Part <V_GlobalVariable>(EnumData.GetEnumValue(Variable.B)))
);
// ?---
ContinueSkip.SetSkipCount(lastMethod.ActionIndex);
Actions.Add(Element.Part <A_Loop>());
if (needsToBeValue)
{
method = lastMethod.Return.GetVariable();
}
else
{
method = null;
}
}
else
{
var methodScope = Root.Child();
// Add the parameter variables to the scope.
ParameterVar[] parameterVars = new ParameterVar[userMethod.Parameters.Length];
for (int i = 0; i < parameterVars.Length; i++)
{
if (methodNode.Parameters.Length > i)
{
// Create a new variable using the parameter input.
parameterVars[i] = VarCollection.AssignParameterVar(Actions, methodScope, IsGlobal, userMethod.Parameters[i].Name, methodNode.Range);
Actions.Add(parameterVars[i].Push(ParseExpression(scope, methodNode.Parameters[i])));
}
else
{
throw SyntaxErrorException.MissingParameter(userMethod.Parameters[i].Name, methodNode.Name, methodNode.Range);
}
}
var returns = VarCollection.AssignVar($"{methodNode.Name}: return temp value", IsGlobal);
Var continueSkipArray = VarCollection.AssignVar($"{methodNode.Name}: continue skip temp value", IsGlobal);
var stack = new MethodStack(userMethod, parameterVars, ContinueSkip.GetSkipCount(), returns, continueSkipArray);
MethodStack.Add(stack);
var userMethodScope = methodScope.Child();
userMethod.Block.RelatedScopeGroup = userMethodScope;
ParseBlock(userMethodScope, userMethod.Block, true, returns);
// No return value if the method is being used as an action.
if (needsToBeValue)
{
method = returns.GetVariable();
}
else
{
method = null;
}
Actions.Add(Element.Part <A_Wait>(new V_Number(Constants.MINIMUM_WAIT)));
for (int i = 0; i < parameterVars.Length; i++)
{
parameterVars[i].Pop();
}
ContinueSkip.Setup();
ContinueSkip.SetSkipCount(Element.Part <V_LastOf>(continueSkipArray.GetVariable()));
// ?--- Multidimensional Array
Actions.Add(
Element.Part <A_SetGlobalVariable>(EnumData.GetEnumValue(Variable.B), continueSkipArray.GetVariable())
);
Actions.Add(
continueSkipArray.SetVariable(
Element.Part <V_ArraySlice>(
Element.Part <V_GlobalVariable>(EnumData.GetEnumValue(Variable.B)),
new V_Number(0),
Element.Part <V_Subtract>(
Element.Part <V_CountOf>(Element.Part <V_GlobalVariable>(EnumData.GetEnumValue(Variable.B))),
new V_Number(1)
)
)
)
);
// ?---
Actions.Add(
Element.Part <A_LoopIf>(
Element.Part <V_Compare>(
Element.Part <V_CountOf>(continueSkipArray.GetVariable()),
EnumData.GetEnumValue(Operators.NotEqual),
new V_Number(0)
)
)
);
ContinueSkip.ResetSkip();
MethodStack.Remove(stack);
}
break;
}
}
default: throw new NotImplementedException();
}
methodNode.RelatedElement = method;
return(method);
}
IWorkshopTree ParseParameter(ScopeGroup scope, IExpressionNode node, string methodName, Parameter parameterData)
{
IWorkshopTree value = null;
switch (node)
{
case EnumNode enumNode:
/*
* if (parameterData.ParameterType != ParameterType.Enum)
* throw SyntaxErrorException.ExpectedType(true, parameterData.ValueType.ToString(), methodName, parameterData.Name, enumNode.Range);
*
* if (enumNode.Type != parameterData.EnumType.Name)
* throw SyntaxErrorException.ExpectedType(false, parameterData.EnumType.ToString(), methodName, parameterData.Name, enumNode.Range);
*/
value = (IWorkshopTree)EnumData.Special(enumNode.EnumMember) ?? (IWorkshopTree)enumNode.EnumMember;
//if (value == null)
// throw SyntaxErrorException.InvalidEnumValue(enumNode.Type, enumNode.Value, enumNode.Range);
break;
default:
if (parameterData.ParameterType != ParameterType.Value)
{
throw SyntaxErrorException.ExpectedType(false, parameterData.EnumType.Name, methodName, parameterData.Name, ((Node)node).Range);
}
value = ParseExpression(scope, node);
Element element = value as Element;
ElementData elementData = element.GetType().GetCustomAttribute <ElementData>();
if (elementData.ValueType != Elements.ValueType.Any &&
!parameterData.ValueType.HasFlag(elementData.ValueType))
{
throw SyntaxErrorException.InvalidType(parameterData.ValueType, elementData.ValueType, ((Node)node).Range);
}
break;
}
if (value == null)
{
throw new Exception("Failed to parse parameter.");
}
return(value);
}
Element ParseExpression(DeltinScriptParser.ExprContext context)
{
// If the expression is a(n)...
#region Operation
// 0 1 2
// (expr operation expr)
// count == 3
if (context.ChildCount == 3 &&
(Constants.MathOperations.Contains(context.GetChild(1).GetText()) ||
Constants.CompareOperations.Contains(context.GetChild(1).GetText()) ||
Constants.BoolOperations.Contains(context.GetChild(1).GetText())))
{
Element left = ParseExpression(context.GetChild(0) as DeltinScriptParser.ExprContext);
string operation = context.GetChild(1).GetText();
Element right = ParseExpression(context.GetChild(2) as DeltinScriptParser.ExprContext);
if (Constants.BoolOperations.Contains(context.GetChild(1).GetText()))
{
if (left.ElementData.ValueType != Elements.ValueType.Any && left.ElementData.ValueType != Elements.ValueType.Boolean)
{
throw new SyntaxErrorException($"Expected boolean datatype, got {left .ElementData.ValueType.ToString()} instead.", context.start);
}
if (right.ElementData.ValueType != Elements.ValueType.Any && right.ElementData.ValueType != Elements.ValueType.Boolean)
{
throw new SyntaxErrorException($"Expected boolean datatype, got {right.ElementData.ValueType.ToString()} instead.", context.start);
}
}
switch (operation)
{
case "^":
return(Element.Part <V_RaiseToPower>(left, right));
case "*":
return(Element.Part <V_Multiply>(left, right));
case "/":
return(Element.Part <V_Divide>(left, right));
case "+":
return(Element.Part <V_Add>(left, right));
case "-":
return(Element.Part <V_Subtract>(left, right));
case "%":
return(Element.Part <V_Modulo>(left, right));
// COMPARE : '<' | '<=' | '==' | '>=' | '>' | '!=';
case "&":
return(Element.Part <V_And>(left, right));
case "|":
return(Element.Part <V_Or>(left, right));
case "<":
return(Element.Part <V_Compare>(left, Operators.LessThan, right));
case "<=":
return(Element.Part <V_Compare>(left, Operators.LessThanOrEqual, right));
case "==":
return(Element.Part <V_Compare>(left, Operators.Equal, right));
case ">=":
return(Element.Part <V_Compare>(left, Operators.GreaterThanOrEqual, right));
case ">":
return(Element.Part <V_Compare>(left, Operators.GreaterThan, right));
case "!=":
return(Element.Part <V_Compare>(left, Operators.NotEqual, right));
}
}
#endregion
#region Not
if (context.GetChild(0) is DeltinScriptParser.NotContext)
{
return(Element.Part <V_Not>(ParseExpression(context.GetChild(1) as DeltinScriptParser.ExprContext)));
}
#endregion
#region Number
if (context.GetChild(0) is DeltinScriptParser.NumberContext)
{
var number = context.GetChild(0);
double num = double.Parse(number.GetChild(0).GetText());
/*
* // num will have the format expr(number(X)) if positive, expr(number(neg(X))) if negative.
* if (number.GetChild(0) is DeltinScriptParser.NegContext)
* // Is negative, use '-' before int.parse to make it negative.
* num = -double.Parse(number.GetChild(0).GetText());
* else
* // Is positive
* num = double.Parse(number.GetChild(0).GetText());
*/
return(new V_Number(num));
}
#endregion
#region Boolean
// True
if (context.GetChild(0) is DeltinScriptParser.TrueContext)
{
return(new V_True());
}
// False
if (context.GetChild(0) is DeltinScriptParser.FalseContext)
{
return(new V_False());
}
#endregion
#region String
if (context.GetChild(0) is DeltinScriptParser.StringContext)
{
return(V_String.ParseString(
context.start,
// String will look like "hey this is the contents", trim the quotes.
(context.GetChild(0) as DeltinScriptParser.StringContext).STRINGLITERAL().GetText().Trim('\"'),
null
));
}
#endregion
#region Formatted String
if (context.GetChild(1) is DeltinScriptParser.StringContext)
{
Element[] values = context.expr().Select(expr => ParseExpression(expr)).ToArray();
return(V_String.ParseString(
context.start,
(context.GetChild(1) as DeltinScriptParser.StringContext).STRINGLITERAL().GetText().Trim('\"'),
values
));
}
#endregion
#region null
if (context.GetChild(0) is DeltinScriptParser.NullContext)
{
return(new V_Null());
}
#endregion
#region Group ( expr )
if (context.ChildCount == 3 && context.GetChild(0).GetText() == "(" &&
context.GetChild(1) is DeltinScriptParser.ExprContext &&
context.GetChild(2).GetText() == ")")
{
Console.WriteLine("Group type:" + context.GetChild(0).GetType());
return(ParseExpression(context.GetChild(1) as DeltinScriptParser.ExprContext));
}
#endregion
#region Method
if (context.GetChild(0) is DeltinScriptParser.MethodContext)
{
return(ParseMethod(context.GetChild(0) as DeltinScriptParser.MethodContext, true));
}
#endregion
#region Variable
if (context.GetChild(0) is DeltinScriptParser.VariableContext)
{
return(DefinedVar.GetVar((context.GetChild(0) as DeltinScriptParser.VariableContext).PART().GetText(), context.start).GetVariable(new V_EventPlayer()));
}
#endregion
#region Array
if (context.ChildCount == 4 && context.GetChild(1).GetText() == "[" && context.GetChild(3).GetText() == "]")
{
return(Element.Part <V_ValueInArray>(
ParseExpression(context.expr(0) as DeltinScriptParser.ExprContext),
ParseExpression(context.expr(1) as DeltinScriptParser.ExprContext)));
}
#endregion
#region Create Array
if (context.ChildCount >= 4 && context.GetChild(0).GetText() == "[")
{
var expressions = context.expr();
V_Append prev = null;
V_Append current = null;
for (int i = 0; i < expressions.Length; i++)
{
current = new V_Append()
{
ParameterValues = new object[2]
};
if (prev != null)
{
current.ParameterValues[0] = prev;
}
else
{
current.ParameterValues[0] = new V_EmptyArray();
}
current.ParameterValues[1] = ParseExpression(expressions[i]);
prev = current;
}
return(current);
}
#endregion
#region Empty Array
if (context.ChildCount == 2 && context.GetText() == "[]")
{
return(Element.Part <V_EmptyArray>());
}
#endregion
#region Seperator/enum
if (context.ChildCount == 3 && context.GetChild(1).GetText() == ".")
{
Element left = ParseExpression(context.GetChild(0) as DeltinScriptParser.ExprContext);
string variableName = context.GetChild(2).GetChild(0).GetText();
DefinedVar var = DefinedVar.GetVar(variableName, context.start);
return(var.GetVariable(left));
}
#endregion
throw new Exception($"What's a {context.GetType().Name}?");
}
public Element ParseExpression(ScopeGroup getter, ScopeGroup scope, Node expression)
{
switch (expression)
{
// Math and boolean operations.
case OperationNode operationNode:
{
Element left = ParseExpression(getter, scope, operationNode.Left);
Element right = ParseExpression(getter, scope, operationNode.Right);
/*
* if (Constants.BoolOperations.Contains(operationNode.Operation))
* {
* if (left.ElementData.ValueType != Elements.ValueType.Any && left.ElementData.ValueType != Elements.ValueType.Boolean)
* throw new SyntaxErrorException($"Expected boolean, got {left .ElementData.ValueType.ToString()} instead.", ((Node)operationNode.Left).Range);
*
* if (right.ElementData.ValueType != Elements.ValueType.Any && right.ElementData.ValueType != Elements.ValueType.Boolean)
* throw new SyntaxErrorException($"Expected boolean, got {right.ElementData.ValueType.ToString()} instead.", ((Node)operationNode.Right).Range);
* }
*/
switch (operationNode.Operation)
{
// Math: ^, *, %, /, +, -
case "^":
return(Element.Part <V_RaiseToPower>(left, right));
case "*":
return(left * right);
case "%":
return(left % right);
case "/":
return(left / right);
case "+":
return(left + right);
case "-":
return(left - right);
// BoolCompare: &&, ||
case "&&":
return(Element.Part <V_And>(left, right));
case "||":
return(Element.Part <V_Or>(left, right));
// Compare: <, <=, ==, >=, >, !=
case "<":
return(left < right);
case "<=":
return(left <= right);
case "==":
return(Element.Part <V_Compare>(left, EnumData.GetEnumValue(Operators.Equal), right));
case ">=":
return(left >= right);
case ">":
return(left > right);
case "!=":
return(Element.Part <V_Compare>(left, EnumData.GetEnumValue(Operators.NotEqual), right));
}
throw new Exception($"Operation {operationNode.Operation} not implemented.");
}
// Number
case NumberNode numberNode:
return(numberNode.Value);
// Bool
case BooleanNode boolNode:
if (boolNode.Value)
{
return(new V_True());
}
else
{
return(new V_False());
}
// Not operation
case NotNode notNode:
return(!(ParseExpression(getter, scope, notNode.Value)));
case InvertNode invertNode:
return(-ParseExpression(getter, scope, invertNode.Value));
// Strings
case StringNode stringNode:
Element[] stringFormat = new Element[stringNode.Format?.Length ?? 0];
for (int i = 0; i < stringFormat.Length; i++)
{
stringFormat[i] = ParseExpression(getter, scope, stringNode.Format[i]);
}
if (stringNode.Localized)
{
return(V_String.ParseString(stringNode.Location, stringNode.Value, stringFormat));
}
else
{
return(V_CustomString.ParseString(stringNode.Location, stringNode.Value, stringFormat));
}
// Null
case NullNode nullNode:
return(new V_Null());
// TODO check if groups need to be implemented here
// Methods
case MethodNode methodNode:
return(ParseMethod(getter, scope, methodNode, true));
// Variable
case VariableNode variableNode:
Element[] index = new Element[variableNode.Index.Length];
for (int i = 0; i < index.Length; i++)
{
index[i] = ParseExpression(getter, scope, variableNode.Index[i]);
}
Var var = scope.GetVar(getter, variableNode.Name, variableNode.Location);
if (!var.Gettable())
{
throw SyntaxErrorException.VariableIsReadonly(var.Name, variableNode.Location);
}
Element result = var.GetVariable();
for (int i = 0; i < index.Length; i++)
{
result = Element.Part <V_ValueInArray>(result, index[i]);
}
return(result);
// Get value in array
case ValueInArrayNode viaNode:
return(Element.Part <V_ValueInArray>(ParseExpression(getter, scope, viaNode.Value), ParseExpression(getter, scope, viaNode.Index)));
// Create array
case CreateArrayNode createArrayNode:
{
Element prev = null;
Element current = null;
for (int i = 0; i < createArrayNode.Values.Length; i++)
{
current = new V_Append()
{
ParameterValues = new IWorkshopTree[2]
};
if (prev != null)
{
current.ParameterValues[0] = prev;
}
else
{
current.ParameterValues[0] = new V_EmptyArray();
}
current.ParameterValues[1] = ParseExpression(getter, scope, createArrayNode.Values[i]);
prev = current;
}
return(current ?? new V_EmptyArray());
}
// Ternary Conditional (a ? b : c)
case TernaryConditionalNode ternaryNode:
return(Element.TernaryConditional
(
ParseExpression(getter, scope, ternaryNode.Condition),
ParseExpression(getter, scope, ternaryNode.Consequent),
ParseExpression(getter, scope, ternaryNode.Alternative)
));
// Enums
case EnumNode enumNode:
return(EnumData.ToElement(enumNode.EnumMember)
?? throw SyntaxErrorException.EnumCantBeValue(enumNode.Type, enumNode.Location));
// New object
case CreateObjectNode createObjectNode:
DefinedType typeData = ParserData.GetDefinedType(createObjectNode.TypeName, createObjectNode.Location);
return(typeData.New(createObjectNode, getter, scope, this));
// Expression tree
case ExpressionTreeNode expressionTree:
return(new ParseExpressionTree(this, getter, scope, expressionTree).ResultingElement);
// This
case ThisNode thisNode:
return(getter.GetThis(thisNode.Location));
// Type convert
case TypeConvertNode typeConvertNode:
DefinedType type = ParserData.GetDefinedType(typeConvertNode.Type, typeConvertNode.Location);
Element element = ParseExpression(getter, scope, typeConvertNode.Expression);
type.GetSource(this, element, typeConvertNode.Location);
return(element);
case RootNode rootNode: throw new SyntaxErrorException("'root' cannot be used like an expression.", rootNode.Location);
}
throw new Exception();
}