/**
* Finds and loads a logic into the given symbol table
*
* @param logicName name of the logic to load
* @param symTable the symbol table into which to load it
* @return null if read OK, an error if a problem happened
*/
public /* @Nullable */ IResponse loadLogic(
String logicName, SymbolTable symTable, /* @Nullable */ IPos pos) {
ILogic sx = null; // = findLogic(logicName, smtConfig.logicPath, pos);
{
String name = logicName;
ISource source;
InputStream input = null;
try {
SMT.Configuration config = smtConfig.clone();
config.interactive = false;
input = SMT.logicFinder.find(smtConfig, name, pos);
if (input == null)
return smtConfig.responseFactory.error(
"Unexpected null result: No logic loaded " + name, pos);
// The above error should not happen, because an exception
// ought to be thrown for any problems in find().
source = config.smtFactory.createSource(config, input, null);
IParser p = config.smtFactory.createParser(config, source);
sx = p.parseLogic();
symTable.logicInUse = sx;
} catch (IParser.ParserException e) {
return smtConfig.responseFactory.error(
"Failed to parse the logic file " + name + ": " + e, e.pos());
} catch (Utils.SMTLIBException e) {
return e.errorResponse;
} catch (Exception e) {
return smtConfig.responseFactory.error(
"Failed to read the logic file for " + name + ": " + e, null);
} finally {
try {
if (input != null) input.close();
} catch (java.io.IOException e) {
return smtConfig.responseFactory.error(
"Failed to close a stream while parsing " + name + " : " + e, null);
}
}
}
if (sx == null) {
return smtConfig.responseFactory.error("Failed to load logic", pos);
}
// The second element should be the name of the logic, if specified
if (!logicName.equals(sx.logicName().value())) {
return smtConfig.responseFactory.error(
"Definition of logic "
+ logicName
+ " is mal-formed (internal name does not match file name): "
+ sx.logicName().value(),
sx.logicName().pos());
}
return loadLogic(sx, symTable);
}
