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import java.io.FileNotFoundException;
import java.io.IOException;
public class VHDLLevel
{
/* Utility Class */
private VHDLLevel () {}
public static boolean add_to_model
(
final VHDLModel m,
final String filename
)
throws FileNotFoundException
{
final QuickParser qp;
String[] input;
boolean success;
qp = new QuickParser(filename);
for (;;)
{
try
{
input = qp.parse_line();
if (input == null)
{
qp.finalize();
return false;
}
else if (input.length == 0)
{
qp.finalize();
break;
}
}
catch (final IOException e)
{
System.err.println
(
"[E] IO error while parsing file \""
+ filename
+ "\":"
/* FIXME: can be null */
+ e.getMessage()
);
return false;
}
if (input[0].equals("add_type"))
{
success = handle_add_type(input, m);
}
else if (input[0].equals("add_predicate"))
{
success = handle_add_predicate(input, m, false);
}
else if (input[0].equals("add_function"))
{
success = handle_add_predicate(input, m, true);
}
else
{
System.err.println
(
"[E] Unknown instruction type \""
+ input[0]
+ "\" in file \""
+ filename
+ "\"."
);
return false;
}
if (!success)
{
System.err.println
(
"[E] An erroneous instruction was found in file \""
+ filename
+ "\"."
);
try
{
qp.finalize();
}
catch (final Exception e)
{
System.err.println("[E] Additionally:");
e.printStackTrace();
}
return false;
}
}
return true;
}
private static boolean handle_add_type
(
final String[] cmd,
final VHDLModel m
)
{
if (cmd.length != 2)
{
System.err.println
(
"[E] Badly formed \"add_type\" instruction: \""
+ String.join(" ", cmd)
+ "\"."
);
return false;
}
m.add_type(cmd[1]);
return true;
}
private static boolean handle_add_predicate
(
final String[] cmd,
final VHDLModel m,
final boolean is_function
)
{
final String[] signature;
if (cmd.length < 2)
{
System.err.println
(
"[E] Badly formed \"add_predicate\" or \"add_function\""
+ " instruction: \""
+ String.join(" ", cmd)
+ "\"."
);
return false;
}
signature = new String[cmd.length - 2];
for (int i = 2; i < cmd.length; ++i)
{
signature[i - 2] = cmd[i];
}
return m.add_predicate(cmd[1], signature, is_function);
}
}
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