public IMatchable findObject(MatchNode matchNode, int index) {
int node_type = matchNode.getType();
if (node_type == MatchNode.MATCHNODE_STATEMENT && !this.stats.isEmpty()) {
String position = (String) matchNode.getRuleValue(MatchProperties.STATEMENT_POSITION);
if (position != null) {
if (position.matches("-?\\d+")) {
return this.stats.get(
(this.stats.size() + Integer.parseInt(position))
% this.stats.size()); // care for negative positions
}
} else if (index < this.stats.size()) { // use 'index' parameter
return this.stats.get(index);
}
} else if (node_type == MatchNode.MATCHNODE_EXPRENT
&& this.exprents != null
&& !this.exprents.isEmpty()) {
String position = (String) matchNode.getRuleValue(MatchProperties.EXPRENT_POSITION);
if (position != null) {
if (position.matches("-?\\d+")) {
return this.exprents.get(
(this.exprents.size() + Integer.parseInt(position))
% this.exprents.size()); // care for negative positions
}
} else if (index < this.exprents.size()) { // use 'index' parameter
return this.exprents.get(index);
}
}
return null;
}
public boolean match(MatchNode matchNode, MatchEngine engine) {
if (matchNode.getType() != MatchNode.MATCHNODE_STATEMENT) {
return false;
}
for (Entry<MatchProperties, RuleValue> rule : matchNode.getRules().entrySet()) {
switch (rule.getKey()) {
case STATEMENT_TYPE:
if (this.type != ((Integer) rule.getValue().value).intValue()) {
return false;
}
break;
case STATEMENT_STATSIZE:
if (this.stats.size() != ((Integer) rule.getValue().value).intValue()) {
return false;
}
break;
case STATEMENT_EXPRSIZE:
int exprsize = ((Integer) rule.getValue().value).intValue();
if (exprsize == -1) {
if (this.exprents != null) {
return false;
}
} else {
if (this.exprents == null || this.exprents.size() != exprsize) {
return false;
}
}
break;
case STATEMENT_RET:
if (!engine.checkAndSetVariableValue((String) rule.getValue().value, this)) {
return false;
}
break;
}
}
return true;
}