protected override void OnTranslate(ShaderTranslationContext sc, IdentifierNameSyntax syntax, ScopeInfo scope)
{
if (syntax.Parent is InvocationExpressionSyntax invSyntax)
{
string translatedIntrinsic = ShaderType.GetIntrinsicTranslation(sc, syntax.Identifier.ValueText);
sc.Source.Append(translatedIntrinsic);
}
else
{
ScopeInfo cScope = scope.FindOfType(ScopeType.Class);
PropertyInfo pInfo = cScope?.TypeInfo.OriginalType.GetProperty(syntax.Identifier.ValueText);
if (pInfo != null)
{
if (syntax.Parent is AssignmentExpressionSyntax aSyntax)
{
if (aSyntax.Left == syntax)
{
TranslatePropertyAssignment(sc, syntax, aSyntax);
}
}
else if (syntax.Parent is MemberAccessExpressionSyntax mSyntax &&
mSyntax.Parent is AssignmentExpressionSyntax maSyntax &&
maSyntax.Left == mSyntax)
{
TranslatePropertyAssignment(sc, syntax, maSyntax);
}
else // Safe to assume it's a property get call.
{
sc.Source.Append($"get{syntax.Identifier}()");
}
}
protected override void OnTranslate(ShaderTranslationContext sc, MemberAccessExpressionSyntax syntax, ScopeInfo scope)
{
switch (syntax.Expression)
{
case IdentifierNameSyntax idSyntax:
// Is this a static class identifier?
// Static classes are abstract and sealed at IL level.
Type targetType = ShaderType.Resolve(sc, idSyntax.Identifier.ValueText);
if (targetType != null && targetType.IsClass && targetType.IsAbstract && targetType.IsSealed)
{
// Is the member a constant value? If so, we can take it's value directly.
FieldInfo fInfo = targetType.GetField(syntax.Name.Identifier.ValueText);
if (fInfo != null && (fInfo.Attributes & FieldAttributes.Literal) == FieldAttributes.Literal)
{
object val = fInfo.GetValue(null);
if (val != null)
{
sc.Source.Append(val.ToString());
sc.CompleteChildren(syntax);
return;
}
}
}
else
{
ScopeInfo cScope = scope.FindOfType(ScopeType.Class);
if (cScope == sc.Source.RootScope)
{
FieldInfo fInfo = cScope.TypeInfo.OriginalType.GetField(idSyntax.Identifier.ValueText);
if (fInfo != null && sc.ConstantBuffers.Values.Any(x => x.TypeInfo == fInfo.FieldType))
{
if (!sc.Language.InstancedConstantBuffers)
{
sc.CompleteSelfAndChildren(syntax.Expression);
sc.Runner.Translate(sc, syntax.Name);
return;
}
}
}
}
break;
case ThisExpressionSyntax thisSyntax:
case BaseExpressionSyntax baseSyntax:
ScopeInfo pScope = scope.FindOfType(ScopeType.Class);
if (pScope.TypeInfo.OriginalType == sc.ShaderType)
{
sc.Complete(syntax.Expression);
// Are we translating a shader intrinsic method/function?
if (syntax.Name is IdentifierNameSyntax idSyntax && syntax.Parent is InvocationExpressionSyntax)
{
string translatedIntrinsic = ShaderType.GetIntrinsicTranslation(sc, idSyntax.Identifier.ValueText);
sc.Source.Append(translatedIntrinsic);
sc.Complete(syntax.Name);
}
return;
}
break;
}
sc.Runner.Translate(sc, syntax.Expression);
sc.Source.Append(syntax.OperatorToken);
sc.Runner.Translate(sc, syntax.Name);
}