protected void exitRule(ParseTreeListener listener, RuleNode r) {
ParserRuleContext ctx = (ParserRuleContext) r.getRuleContext();
ctx.exitRule(listener);
listener.exitEveryRule(ctx);
GlobalInfo info = GlobalInfo.getInstance();
info.exitRuleSetup();
}
/**
* Consume and return the {@linkplain #getCurrentToken current symbol}.
*
* <p>E.g., given the following input with {@code A} being the current lookahead symbol, this
* function moves the cursor to {@code B} and returns {@code A}.
*
* <pre>
* A B
* ^
* </pre>
*
* If the parser is not in error recovery mode, the consumed symbol is added to the parse tree
* using {@link ParserRuleContext#addChild(Token)}, and {@link ParseTreeListener#visitTerminal} is
* called on any parse listeners. If the parser <em>is</em> in error recovery mode, the consumed
* symbol is added to the parse tree using {@link ParserRuleContext#addErrorNode(Token)}, and
* {@link ParseTreeListener#visitErrorNode} is called on any parse listeners.
*/
public Token consume() {
Token o = getCurrentToken();
if (o.getType() != EOF) {
getInputStream().consume();
}
boolean hasListener = _parseListeners != null && !_parseListeners.isEmpty();
if (_buildParseTrees || hasListener) {
if (_errHandler.inErrorRecoveryMode(this)) {
ErrorNode node = _ctx.addErrorNode(o);
if (_parseListeners != null) {
for (ParseTreeListener listener : _parseListeners) {
listener.visitErrorNode(node);
}
}
} else {
TerminalNode node = _ctx.addChild(o);
if (_parseListeners != null) {
for (ParseTreeListener listener : _parseListeners) {
listener.visitTerminal(node);
}
}
}
}
return o;
}
public void checkJParse(String filename) throws Exception {
URL testFolderURL = TestParser.class.getClassLoader().getResource(SAMPLES_DIR);
String testFolder = testFolderURL.getPath();
String J_pathToFile = testFolder + "/" + filename;
ANTLRInputStream input = new ANTLRFileStream(J_pathToFile);
JLexer l = new JLexer(input);
TokenStream tokens = new CommonTokenStream(l);
JParser parser = new JParser(tokens);
parser.removeErrorListeners();
int[] errors = {0};
parser.addErrorListener(
new BaseErrorListener() {
@Override
public void syntaxError(
Recognizer<?, ?> recognizer,
Object offendingSymbol,
int line,
int charPositionInLine,
String msg,
RecognitionException e) {
errors[0]++;
}
});
ParserRuleContext tree = parser.file();
assertTrue(tree != null);
assertEquals(Token.EOF, tree.getStop().getType());
assertEquals(0, errors[0]);
}
/**
* A utility method to output consistent error messages.
*
* @param ctx The ANTLR node the error occurred in.
* @return The error message with tacked on line number and character position.
*/
static String error(final ParserRuleContext ctx) {
return "Analyzer Error ["
+ ctx.getStart().getLine()
+ ":"
+ ctx.getStart().getCharPositionInLine()
+ "]: ";
}
protected void addContextToParseTree() {
ParserRuleContext parent = (ParserRuleContext) _ctx.parent;
// add current context to parent if we have a parent
if (parent != null) {
parent.addChild(_ctx);
}
}
public ParserRuleContext getInvokingContext(int ruleIndex) {
ParserRuleContext p = _ctx;
while (p != null) {
if (p.getRuleIndex() == ruleIndex) return p;
p = (ParserRuleContext) p.parent;
}
return null;
}
@Override
public void parse(DeclarationArrayInteger node, ParserRuleContext context) {
// Get Symbol for line
TerminalNodeImpl firstTerminal = (TerminalNodeImpl) context.getChild(1);
Label label =
new LabelLine(
node.getClass(), firstTerminal.getSymbol().getText(), context.getStart().getLine());
node.setL(label);
}
@Override
public void parse(StatementSkip node, ParserRuleContext context) {
// Get Symbol for line
TerminalNodeImpl firstTerminal = (TerminalNodeImpl) context.getChild(0);
Label label =
new LabelLine(
node.getClass(), firstTerminal.getSymbol().getText(), context.getStart().getLine());
node.setL(label);
}
public void exitRule() {
if (matchedEOF) {
// if we have matched EOF, it cannot consume past EOF so we use LT(1) here
_ctx.stop = _input.LT(1); // LT(1) will be end of file
} else {
_ctx.stop = _input.LT(-1); // stop node is what we just matched
}
// trigger event on _ctx, before it reverts to parent
if (_parseListeners != null) triggerExitRuleEvent();
setState(_ctx.invokingState);
_ctx = (ParserRuleContext) _ctx.parent;
}
private void add(
ParserRuleContext ctx,
Boolean valid,
Boolean print,
GlobalInfo.nodeTypes type,
ClassInfo value) {
if (print) Logger.printValue(ctx, valid.toString() + " : " + ctx.getText());
WalkInfo info = new WalkInfo(valid, ctx.getText());
info.setClassType(value);
info.setNodeType(type);
globalInfo.getCurrentQueue().add(info);
}
public static ParserRuleContext findTopContext(
ParserRuleContext context, IntervalSet values, boolean checkTop) {
if (checkTop && values.contains(context.getRuleIndex())) {
return context;
}
if (context.isEmpty()) {
return null;
}
return findTopContext((ParserRuleContext) context.parent, values, true);
}
public void process(String[] args) throws IOException {
handleArgs(args);
ANTLRInputStream chars;
if (inputFileName != null) chars = new ANTLRFileStream(inputFileName);
else chars = new ANTLRInputStream(System.in);
CharsAsTokens charTokens = new CharsAsTokens(chars, MarkdownParser.tokenNames);
CommonTokenStream tokens = new CommonTokenStream(charTokens);
MarkdownParser parser = new MarkdownParser(tokens);
parser.getInterpreter().setPredictionMode(PredictionMode.SLL);
ParserRuleContext t = parser.file();
if (showGUI) t.inspect(Arrays.asList(MarkdownParser.ruleNames));
if (showTree) System.out.println(t.toStringTree(parser));
}
public void enterOuterAlt(ParserRuleContext localctx, int altNum) {
localctx.setAltNumber(altNum);
// if we have new localctx, make sure we replace existing ctx
// that is previous child of parse tree
if (_buildParseTrees && _ctx != localctx) {
ParserRuleContext parent = (ParserRuleContext) _ctx.parent;
if (parent != null) {
parent.removeLastChild();
parent.addChild(localctx);
}
}
_ctx = localctx;
}
public static Token getStopSymbol(@NonNull ParserRuleContext context) {
Parameters.notNull("context", context);
if (context.stop != null) {
return context.stop;
}
for (int i = context.getChildCount() - 1; i >= 0; i--) {
Token symbol = getStopSymbol(context.getChild(i));
if (symbol != null) {
return symbol;
}
}
return context.start;
}
/**
* Always called by generated parsers upon entry to a rule. Access field {@link #_ctx} get the
* current context.
*/
public void enterRule(ParserRuleContext localctx, int state, int ruleIndex) {
setState(state);
_ctx = localctx;
_ctx.start = _input.LT(1);
if (_buildParseTrees) addContextToParseTree();
if (_parseListeners != null) triggerEnterRuleEvent();
}
/**
* Notify any parse listeners of an exit rule event.
*
* @see #addParseListener
*/
protected void triggerExitRuleEvent() {
// reverse order walk of listeners
for (int i = _parseListeners.size() - 1; i >= 0; i--) {
ParseTreeListener listener = _parseListeners.get(i);
_ctx.exitRule(listener);
listener.exitEveryRule(_ctx);
}
}
public void enterRecursionRule(
ParserRuleContext localctx, int state, int ruleIndex, int precedence) {
setState(state);
_precedenceStack.push(precedence);
_ctx = localctx;
_ctx.start = _input.LT(1);
if (_parseListeners != null) {
triggerEnterRuleEvent(); // simulates rule entry for left-recursive rules
}
}
protected int getTypeDeclarationContextAccessFlag(ParserRuleContext ctx) {
int access = 0;
for (JavaParser.ClassOrInterfaceModifierContext coiModifierContext :
ctx.getRuleContexts(JavaParser.ClassOrInterfaceModifierContext.class)) {
access += getAccessFlag(coiModifierContext);
}
return access;
}
@Override
public void enterStatement(JavaParser.StatementContext ctx) {
ctx.getChildCount();
String text = ctx.getStart().getText();
if (!text.equals("if") && !text.equals("while") && !text.equals("for") && !text.equals("do")) {
return;
}
int depth = 1;
ParserRuleContext tempContext = ctx.getParent();
while (!(tempContext instanceof JavaParser.MethodDeclarationContext)) {
if (tempContext instanceof JavaParser.StatementContext) {
text = tempContext.getStart().getText();
if (text.equals("if") || text.equals("while") || text.equals("for") || text.equals("do")) {
depth++;
}
}
tempContext = tempContext.getParent();
}
report.setDepthOfConditionNesting(depth);
}
private void checkAndAdd(
ParserRuleContext ctx, Boolean valid, Boolean print, GlobalInfo.nodeTypes type) {
Boolean symbolExists;
String code = ctx.getText();
ClassInfo classType = null;
if (globalInfo.getObjectContext() != null) {
ClassInfo ci = globalInfo.getObjectContext();
globalInfo.setPreviousObjectContext(ci);
// this avoids issues in case one Class overwrites a method from it's parent
if (globalInfo.isTopLevel() && globalInfo.isLeftSideAssignment())
classType = ci.getPropertyExcludeParents(code);
// we supose that inside a function we don't modify the prototype
else {
classType = ci.getProperty(code);
// example: Object.keys will fail because we're checking
// the function, instead of the class
if (classType == null) {
if (globalInfo.getClasses().get(ci.getName()) != null) {
ci = globalInfo.getClasses().get(ci.getName());
globalInfo.setPreviousObjectContext(ci);
classType = ci.getProperty(code);
}
}
}
if (code.equals("prototype")) {
symbolExists = true;
classType = ci;
} else if (classType != null) {
symbolExists = true;
} else symbolExists = false;
// TODO add property automatically to all objects instead of hardcoding it here
if (classType == null && code.equals("constructor")) {
symbolExists = true;
// TODO eventually we may need to support multiple parentClass
ClassInfo constructor =
globalInfo
.getDocumentScope()
.getSymbolOfStack(
globalInfo.getObjectContext().getParentClasses().getAllParents().get(0));
globalInfo.setObjectContext(constructor);
classType = constructor;
}
} else {
classType = globalInfo.getCurrentScope().getSymbolOfStack(code);
if (classType == null) classType = globalInfo.getClasses().get(code);
symbolExists = classType != null;
}
if (classType != null) classType = new ClassInfo(classType);
add(ctx, symbolExists, print, type, classType);
}
protected int getMemberDeclarationContextAccessFlag(ParserRuleContext ctx) {
int access = 0;
for (JavaParser.ModifierContext modifierContext :
ctx.getRuleContexts(JavaParser.ModifierContext.class)) {
JavaParser.ClassOrInterfaceModifierContext coiModifierContext =
modifierContext.classOrInterfaceModifier();
if (coiModifierContext != null) {
access += getAccessFlag(coiModifierContext);
}
}
return access;
}
public static boolean isInContexts(
@NonNull ParserRuleContext context, boolean allowGaps, @NonNull int... stack) {
Parameters.notNull("context", context);
Parameters.notNull("stack", stack);
if (allowGaps) {
throw new UnsupportedOperationException("Not implemented yet.");
}
ParserRuleContext currentContext = context;
for (int element : stack) {
if (currentContext.getRuleIndex() != element) {
return false;
}
currentContext = currentContext.getParent();
if (currentContext == null) {
return false;
}
}
return true;
}
public void enterMethodDeclaration(
ParserRuleContext ctx,
TerminalNode identifier,
JavaParser.FormalParametersContext formalParameters,
JavaParser.TypeContext returnType) {
int access = getClassBodyDeclarationAccessFlag(ctx.getParent().getParent());
String name = identifier.getText();
String paramDescriptors = createParamDescriptors(formalParameters.formalParameterList());
String returnDescriptor = createDescriptor(returnType, 0);
String descriptor = paramDescriptors + returnDescriptor;
currentType.getMethods().add(new JavaMethod(currentType, access, name, descriptor));
}
public void unrollRecursionContexts(ParserRuleContext _parentctx) {
_precedenceStack.pop();
_ctx.stop = _input.LT(-1);
ParserRuleContext retctx = _ctx; // save current ctx (return value)
// unroll so _ctx is as it was before call to recursive method
if (_parseListeners != null) {
while (_ctx != _parentctx) {
triggerExitRuleEvent();
_ctx = (ParserRuleContext) _ctx.parent;
}
} else {
_ctx = _parentctx;
}
// hook into tree
retctx.parent = _parentctx;
if (_buildParseTrees && _parentctx != null) {
// add return ctx into invoking rule's tree
_parentctx.addChild(retctx);
}
}
/**
* Return a list of all nodes starting at {@code t} as root that satisfy the path. The root {@code
* /} is relative to the node passed to {@link #evaluate}.
*/
public Collection<ParseTree> evaluate(final ParseTree t) {
ParserRuleContext dummyRoot = new ParserRuleContext();
dummyRoot.children = Collections.singletonList(t); // don't set t's parent.
Collection<ParseTree> work = Collections.<ParseTree>singleton(dummyRoot);
int i = 0;
while (i < elements.length) {
Collection<ParseTree> next = new LinkedHashSet<ParseTree>();
for (ParseTree node : work) {
if (node.getChildCount() > 0) {
// only try to match next element if it has children
// e.g., //func/*/stat might have a token node for which
// we can't go looking for stat nodes.
Collection<? extends ParseTree> matching = elements[i].evaluate(node);
next.addAll(matching);
}
}
i++;
work = next;
}
return work;
}
/**
* Match current input symbol as a wildcard. If the symbol type matches (i.e. has a value greater
* than 0), {@link ANTLRErrorStrategy#reportMatch} and {@link #consume} are called to complete the
* match process.
*
* <p>If the symbol type does not match, {@link ANTLRErrorStrategy#recoverInline} is called on the
* current error strategy to attempt recovery. If {@link #getBuildParseTree} is {@code true} and
* the token index of the symbol returned by {@link ANTLRErrorStrategy#recoverInline} is -1, the
* symbol is added to the parse tree by calling {@link ParserRuleContext#addErrorNode}.
*
* @return the matched symbol
* @throws RecognitionException if the current input symbol did not match a wildcard and the error
* strategy could not recover from the mismatched symbol
*/
public Token matchWildcard() throws RecognitionException {
Token t = getCurrentToken();
if (t.getType() > 0) {
_errHandler.reportMatch(this);
consume();
} else {
t = _errHandler.recoverInline(this);
if (_buildParseTrees && t.getTokenIndex() == -1) {
// we must have conjured up a new token during single token insertion
// if it's not the current symbol
_ctx.addErrorNode(t);
}
}
return t;
}
protected int getClassBodyDeclarationAccessFlag(ParserRuleContext ctx) {
if ((currentType.access & JavaType.FLAG_INTERFACE) == 0) {
int access = 0;
for (JavaParser.ModifierContext modifierContext :
ctx.getRuleContexts(JavaParser.ModifierContext.class)) {
JavaParser.ClassOrInterfaceModifierContext coimc =
modifierContext.classOrInterfaceModifier();
if (coimc != null) {
access += getAccessFlag(coimc);
}
}
return access;
} else {
return JavaType.FLAG_PUBLIC;
}
}
/**
* Like {@link #enterRule} but for recursive rules. Make the current context the child of the
* incoming localctx.
*/
public void pushNewRecursionContext(ParserRuleContext localctx, int state, int ruleIndex) {
ParserRuleContext previous = _ctx;
previous.parent = localctx;
previous.invokingState = state;
previous.stop = _input.LT(-1);
_ctx = localctx;
_ctx.start = previous.start;
if (_buildParseTrees) {
_ctx.addChild(previous);
}
if (_parseListeners != null) {
triggerEnterRuleEvent(); // simulates rule entry for left-recursive rules
}
}
public static Interval getSourceInterval(@NonNull ParserRuleContext context) {
Parameters.notNull("context", context);
int startIndex = context.start.getStartIndex();
Token stopSymbol = getStopSymbol(context);
if (stopSymbol == null) {
return new Interval(startIndex, startIndex - 1);
}
int stopIndex;
if (stopSymbol.getType() != Token.EOF) {
stopIndex = stopSymbol.getStopIndex();
} else {
TokenSource tokenSource = context.getStart().getTokenSource();
CharStream inputStream = tokenSource != null ? tokenSource.getInputStream() : null;
if (inputStream != null) {
stopIndex = inputStream.size() - 1;
} else {
stopIndex = context.start.getStartIndex() - 1;
}
}
stopIndex = Math.max(stopIndex, startIndex - 1);
return new Interval(startIndex, stopIndex);
}
public void copyFrom(ExprContext ctx) {
super.copyFrom(ctx);
}
