public static IEnumerable <SyntaxNode> BuildVariable(this RoslynEcsTranslator translator, IVariableModel v, IPortModel portModel)
{
if (v is IConstantNodeModel model)
{
if (model.ObjectValue != null)
{
yield return(translator.Constant(model.ObjectValue, translator.Stencil, model.Type));
}
yield break;
}
if (translator.InMacro.Count > 0 && v.DeclarationModel.VariableType == VariableType.GraphVariable && v.DeclarationModel.Modifiers == ModifierFlags.ReadOnly)
{
MacroRefNodeModel oldValue = translator.InMacro.Pop();
var syntaxNodes = translator.BuildPort(oldValue.InputsById[v.DeclarationModel.VariableName]);
translator.InMacro.Push(oldValue);
foreach (var syntaxNode in syntaxNodes)
{
yield return(syntaxNode);
}
yield break;
}
switch (v.DeclarationModel.VariableType)
{
case VariableType.GraphVariable:
yield return(translator.context.GetSingletonVariable(v.DeclarationModel));
break;
case VariableType.FunctionVariable:
case VariableType.ComponentGroupField:
yield return(RoslynBuilder.LocalVariableReference(v.DeclarationModel.VariableName));
break;
case VariableType.FunctionParameter:
var variableDeclarationModel = v.DeclarationModel;
if (variableDeclarationModel.VariableIsAGeneratedEcsComponent(out var groupDeclaration))
{
var relevantContext = translator.FindContext(groupDeclaration);
translator.context.RecordComponentAccess(relevantContext, v.DeclarationModel.DataType, translator.IsRecordingComponentAccesses);
yield return(RoslynBuilder.ArgumentReference(translator.context.GetComponentVariableName(groupDeclaration, variableDeclarationModel.DataType)));
}
else
{
yield return(RoslynBuilder.ArgumentReference(v.DeclarationModel.VariableName));
}
break;
default:
throw new ArgumentOutOfRangeException();
}
}
internal static void BuildCriteria(this IEntityManipulationTranslator self, RoslynEcsTranslator translator,
TranslationContext context, ExpressionSyntax entity, IEnumerable <CriteriaModel> criteriaModels,
StatementSyntax conditionBreak)
{
var criteriaList = criteriaModels.ToList();
if (!criteriaList.Any())
{
return;
}
ExpressionSyntax ifExpressionSyntax = null;
foreach (var model in criteriaList)
{
ExpressionSyntax finalExpression = null;
foreach (var criterion in model.Criteria)
{
if (!(criterion is Criterion componentCriterion))
{
continue;
}
var rightValue = componentCriterion.Value is ConstantNodeModel constantNodeModel
? translator.Constant(constantNodeModel.ObjectValue, translator.Stencil, constantNodeModel.Type)
: IdentifierName(componentCriterion.Value.DeclarationModel.VariableName);
var expression = BinaryExpression(
componentCriterion.Operator.ToSyntaxKind(),
GetLeftValueFromCriterion(self, context, translator.Stencil, entity, componentCriterion),
rightValue) as ExpressionSyntax;
// TODO : Temporary. Once Unity.Mathematics have IComparable interface, remove this
// and use IComparable and IEquatable methods instead of operators
var rightValueType = GetRightValueType(componentCriterion, translator.Stencil);
if (rightValueType.Namespace != null && rightValueType.Namespace.StartsWith("Unity.Mathematics"))
{
expression = RoslynBuilder.MethodInvocation(
nameof(math.all),
typeof(math).ToTypeSyntax(),
new[] { Argument(expression) },
Enumerable.Empty <TypeSyntax>());
}
finalExpression = finalExpression == null
? expression
: BinaryExpression(SyntaxKind.LogicalAndExpression, finalExpression, expression);
}
if (finalExpression == null)
{
continue;
}
context.AddStatement(RoslynBuilder.DeclareLocalVariable(
typeof(bool),
model.Name,
finalExpression,
RoslynBuilder.VariableDeclarationType.InferredType));
var unaryExpression = PrefixUnaryExpression(SyntaxKind.LogicalNotExpression, IdentifierName(model.Name));
if (model != criteriaList.First())
{
ifExpressionSyntax = BinaryExpression(
SyntaxKind.LogicalAndExpression,
ifExpressionSyntax,
unaryExpression);
}
else
{
ifExpressionSyntax = unaryExpression;
}
}
if (ifExpressionSyntax != null)
{
BlockSyntax statementSyntax;
if ((translator.Options & CompilationOptions.Tracing) != 0 && context is JobContext jobContext)
{
statementSyntax = Block(List <SyntaxNode>()
.Add(jobContext.MakeTracingEndForEachIndexStatement())
.Add(conditionBreak));
}
else
{
statementSyntax = Block(SingletonList(conditionBreak));
}
context.AddStatement(IfStatement(ifExpressionSyntax, statementSyntax));
}
}