public static void _EmitReturn(ReturnStatement rs, List<ILInstuction> il)
{
if (rs.Expression != null) {
var returnVariable = _EmitExpression(rs.Expression, il);
CurrentFunction.AddLocal(returnVariable, rs.Expression.ResultType);
ILReturn ilReturn = new ILReturn();
ilReturn.Line = GetLabel();
ilReturn.Return = _constructVariableAccess(returnVariable);
il.Add(ilReturn);
} else {
ILReturn ilReturn = new ILReturn();
ilReturn.Line = GetLabel();
il.Add(ilReturn);
}
}
public static bool ValidateReturnStatement(ReturnStatement returnStatement, SymbolTableLight table)
{
bool validReturn = returnStatement.Validate(table);
if (validReturn && (returnStatement.Expression != null || f_currentFunction.Header.ReturnType != null) && (
(returnStatement.Expression == null && f_currentFunction.Header.ReturnType != null) ||
(returnStatement.Expression != null && f_currentFunction.Header.ReturnType == null) ||
!IsAssignable(f_currentFunction.Header.ReturnType, returnStatement.Expression.ResultType)
))
{
CompilerServices.AddError(
returnStatement.Location,
"Return type doesn't match function prototype"
);
return false;
}
return validReturn;
}
public static void EmitReturn(ReturnStatement rs, List<ILInstuction> il)
{
ILReturn ilReturn = new ILReturn();
ilReturn.Line = GetLabel();
ilReturn.Return = ConstructILExpression(rs.Expression);
il.Add(ilReturn);
}
public static void EmitReturn(ReturnStatement returnStatement, SymbolTable table, ILGenerator ilGen)
{
if (returnStatement.Expression == null)
{
ilGen.Emit(OpCodes.Ret);
}
else
{
EmitExpression(returnStatement.Expression, table, ilGen);
ilGen.Emit(OpCodes.Ret);
}
}
