private LuaStatementSyntax BuildCheckReturnInvocationExpression(LuaInvocationExpressionSyntax invocationExpression, SyntaxNode node)
{
if (IsReturnExists(node))
{
var curMethodInfo = CurMethodInfoOrNull;
bool isReturnVoid = curMethodInfo != null && curMethodInfo.Symbol.ReturnsVoid;
var temp1 = GetTempIdentifier(node);
var temp2 = isReturnVoid ? null : GetTempIdentifier(node);
LuaLocalVariablesStatementSyntax localVariables = new LuaLocalVariablesStatementSyntax();
localVariables.Variables.Add(temp1);
if (temp2 != null)
{
localVariables.Variables.Add(temp2);
}
LuaEqualsValueClauseListSyntax initializer = new LuaEqualsValueClauseListSyntax();
initializer.Values.Add(invocationExpression);
localVariables.Initializer = initializer;
LuaIfStatementSyntax ifStatement = new LuaIfStatementSyntax(temp1);
if (CurFunction is LuaCheckReturnFunctionExpressionSyntax)
{
LuaMultipleReturnStatementSyntax returnStatement = new LuaMultipleReturnStatementSyntax();
returnStatement.Expressions.Add(LuaIdentifierNameSyntax.True);
if (temp2 != null)
{
returnStatement.Expressions.Add(temp2);
}
ifStatement.Body.Statements.Add(returnStatement);
}
else
{
if (curMethodInfo != null && curMethodInfo.RefOrOutParameters.Count > 0)
{
LuaMultipleReturnStatementSyntax returnStatement = new LuaMultipleReturnStatementSyntax();
if (temp2 != null)
{
returnStatement.Expressions.Add(temp2);
}
returnStatement.Expressions.AddRange(curMethodInfo.RefOrOutParameters);
ifStatement.Body.Statements.Add(returnStatement);
}
else
{
ifStatement.Body.Statements.Add(new LuaReturnStatementSyntax(temp2));
}
}
LuaStatementListSyntax statements = new LuaStatementListSyntax();
statements.Statements.Add(localVariables);
statements.Statements.Add(ifStatement);
return(statements);
}
else
{
return(new LuaExpressionStatementSyntax(invocationExpression));
}
}
internal void Render(LuaLocalVariablesStatementSyntax node)
{
if (node.Variables.Count > 0)
{
Write(node.LocalKeyword);
WriteSpace();
WriteSeparatedSyntaxList(node.Variables);
node.Initializer?.Render(this);
Write(node.SemicolonToken);
WriteNewLine();
}
}