/// <summary>
/// Check for any inline "out" variable declarations in this statement - i.e. MyFunc(out var result) -
/// and declare those variables now.
/// </summary>
private string DeclareInlineOutVariables(StatementSyntax statement)
{
StringBuilder sb = new StringBuilder();
IEnumerable <SyntaxNode> declarationExpressionNodes = statement
.DescendantNodes(x => !x.IsKind(SyntaxKind.Block)) // Don't descend into child blocks
.Where(x => x.IsKind(SyntaxKind.DeclarationExpression));
foreach (DeclarationExpressionSyntax declarationExpressionNode in declarationExpressionNodes)
{
string varType = _compilation.GetSemanticModel(declarationExpressionNode.Type.SyntaxTree).GetFullTypeName(declarationExpressionNode.Type);
string mappedType = _backend.CSharpToShaderType(varType);
sb.Append(" ");
sb.Append(mappedType);
sb.Append(' ');
switch (declarationExpressionNode.Designation)
{
case SingleVariableDesignationSyntax svds:
string identifier = _backend.CorrectIdentifier(svds.Identifier.Text);
sb.Append(identifier);
sb.Append(';');
sb.AppendLine();
break;
default:
throw new NotImplementedException($"{declarationExpressionNode.Designation.GetType()} designations are not implemented.");
}
}
return(sb.ToString());
}
protected virtual string GetFunctionDeclStr()
{
string returnType = _backend.CSharpToShaderType(_shaderFunction.ReturnType.Name);
string fullDeclType = _backend.CSharpToShaderType(_shaderFunction.DeclaringType);
string funcName = _shaderFunction.IsEntryPoint
? _shaderFunction.Name
: fullDeclType + "_" + _shaderFunction.Name;
return($"{returnType} {funcName}({GetParameterDeclList()})");
}
