public LL1PlusBlock(OutputModelFactory factory, GrammarAST plusRoot, List<CodeBlockForAlt> alts) {
super(factory, plusRoot, alts);
PlusBlockStartState blkStart = (PlusBlockStartState) plusRoot.atnState;
stateNumber = blkStart.loopBackState.stateNumber;
blockStartStateNumber = blkStart.stateNumber;
this.decision = blkStart.decision;
Grammar g = factory.getGrammar();
CodeGenerator gen = factory.getGenerator();
/** Lookahead for each alt 1..n */
IntervalSet[] altLookSets = g.decisionLOOK.get(decision);
altLook = getAltLookaheadAsStringLists(altLookSets);
IntervalSet all = new IntervalSet();
for (IntervalSet s : altLookSets) all.addAll(s);
this.error = getThrowNoViableAlt(factory, plusRoot, all);
loopExpr = addCodeForLoopLookaheadTempVar(all);
loopLabel = gen.getTarget().getLoopLabel(plusRoot);
loopCounterVar = gen.getTarget().getLoopCounter(plusRoot);
IntervalSet exitLookSet = altLookSets[altLookSets.length - 1];
this.exitLook = gen.getTarget().getTokenTypesAsTargetLabels(g, exitLookSet.toArray());
}
public void testActions(String templates, String actionName, String action, String expected)
throws org.antlr.runtime.RecognitionException {
int lp = templates.indexOf('(');
String name = templates.substring(0, lp);
STGroup group = new STGroupString(templates);
ST st = group.getInstanceOf(name);
st.add(actionName, action);
String grammar = st.render();
ErrorQueue equeue = new ErrorQueue();
Grammar g = new Grammar(grammar, equeue);
if (g.ast != null && !g.ast.hasErrors) {
SemanticPipeline sem = new SemanticPipeline(g);
sem.process();
ATNFactory factory = new ParserATNFactory(g);
if (g.isLexer()) factory = new LexerATNFactory((LexerGrammar) g);
g.atn = factory.createATN();
CodeGenerator gen = new CodeGenerator(g);
ST outputFileST = gen.generateParser();
String output = outputFileST.render();
// System.out.println(output);
String b = "#" + actionName + "#";
int start = output.indexOf(b);
String e = "#end-" + actionName + "#";
int end = output.indexOf(e);
String snippet = output.substring(start + b.length(), end);
assertEquals(expected, snippet);
}
if (equeue.size() > 0) {
System.err.println(equeue.toString());
}
}
public LexerATNFactory(LexerGrammar g) {
super(g);
// use codegen to get correct language templates for lexer commands
String language = g.getOptionString("language");
CodeGenerator gen = new CodeGenerator(g.tool, null, language);
codegenTemplates = gen.getTemplates();
}
public List<String> getEvalInfoForString(String grammarString, String pattern)
throws RecognitionException {
ErrorQueue equeue = new ErrorQueue();
Grammar g = new Grammar(grammarString);
List<String> evals = new ArrayList<String>();
if (g.ast != null && !g.ast.hasErrors) {
SemanticPipeline sem = new SemanticPipeline(g);
sem.process();
ATNFactory factory = new ParserATNFactory(g);
if (g.isLexer()) factory = new LexerATNFactory((LexerGrammar) g);
g.atn = factory.createATN();
CodeGenerator gen = new CodeGenerator(g);
ST outputFileST = gen.generateParser();
// STViz viz = outputFileST.inspect();
// try {
// viz.waitForClose();
// }
// catch (Exception e) {
// e.printStackTrace();
// }
boolean debug = false;
DebugInterpreter interp =
new DebugInterpreter(
outputFileST.groupThatCreatedThisInstance,
outputFileST.impl.nativeGroup.errMgr,
debug);
InstanceScope scope = new InstanceScope(null, outputFileST);
StringWriter sw = new StringWriter();
AutoIndentWriter out = new AutoIndentWriter(sw);
interp.exec(out, scope);
for (String e : interp.evals) {
if (e.contains(pattern)) {
evals.add(e);
}
}
}
if (equeue.size() > 0) {
System.err.println(equeue.toString());
}
return evals;
}
