/**
* Answers {@code true} if the given terminal rule is synthetic. That is, the tokens for this rule
* will not be produced by the generated Antlr lexer but manually in a custom token source.
*/
public boolean isSyntheticTerminalRule(final TerminalRule rule) {
AbstractElement _alternatives = rule.getAlternatives();
if ((_alternatives instanceof Keyword)) {
AbstractElement _alternatives_1 = rule.getAlternatives();
String value = ((Keyword) _alternatives_1).getValue();
TerminalRule _originalElement = AntlrGrammarGenUtil.<TerminalRule>getOriginalElement(rule);
String _name = _originalElement.getName();
String _plus = ("synthetic:" + _name);
return Objects.equal(_plus, value);
}
return false;
}
public LookAheadTerminal createLookAheadTerminal(Token token) {
Grammar grammar = getGrammar();
String tokenName = getTokenNames()[token.getType()];
tokenName = getValueForTokenName(tokenName);
if (tokenName.charAt(0) == '\'') {
LookaheadKeyword result = new LookaheadKeyword();
result.setKeyword(tokenName.substring(1, tokenName.length() - 1));
result.setToken(token);
return result;
}
LookAheadTerminalRuleCall result = new LookAheadTerminalRuleCall();
result.setToken(token);
String ruleName = TokenTool.getLexerRuleName(tokenName);
if (terminalRules == null) terminalRules = GrammarUtil.allTerminalRules(grammar);
for (TerminalRule rule : terminalRules) {
if (rule.getName().equalsIgnoreCase(ruleName)) {
result.setRule(rule);
return result;
}
}
throw new IllegalArgumentException("tokenType " + token.getType() + " seems to be invalid.");
}
protected String _ruleName(final TerminalRule it) {
String _name = it.getName();
String _upperCase = _name.toUpperCase();
return ("RULE_" + _upperCase);
}