@Override
public void visitElement(PsiElement element) {
super.visitElement(element);
final EquivalenceDescriptorProvider descriptorProvider =
EquivalenceDescriptorProvider.getInstance(element);
if (descriptorProvider != null) {
final EquivalenceDescriptor descriptor1 = descriptorProvider.buildDescriptor(element);
final EquivalenceDescriptor descriptor2 =
descriptorProvider.buildDescriptor(myGlobalVisitor.getElement());
if (descriptor1 != null && descriptor2 != null) {
final boolean result =
DuplocatorUtil.match(
descriptor1,
descriptor2,
myGlobalVisitor,
Collections.<PsiElementRole>emptySet(),
null);
myGlobalVisitor.setResult(result);
return;
}
}
if (isLiteral(element)) {
visitLiteral(element);
return;
}
if (canBePatternVariable(element)
&& myGlobalVisitor.getMatchContext().getPattern().isRealTypedVar(element)
&& !shouldIgnoreVarNode(element)) {
PsiElement matchedElement = myGlobalVisitor.getElement();
PsiElement newElement = SkippingHandler.skipNodeIfNeccessary(matchedElement);
while (newElement != matchedElement) {
matchedElement = newElement;
newElement = SkippingHandler.skipNodeIfNeccessary(matchedElement);
}
myGlobalVisitor.setResult(myGlobalVisitor.handleTypedElement(element, matchedElement));
} else if (element instanceof LeafElement) {
myGlobalVisitor.setResult(element.getText().equals(myGlobalVisitor.getElement().getText()));
} else if (element.getFirstChild() == null && element.getTextLength() == 0) {
myGlobalVisitor.setResult(true);
} else {
PsiElement patternChild = element.getFirstChild();
PsiElement matchedChild = myGlobalVisitor.getElement().getFirstChild();
FilteringNodeIterator patternIterator = new SsrFilteringNodeIterator(patternChild);
FilteringNodeIterator matchedIterator = new SsrFilteringNodeIterator(matchedChild);
boolean matched = myGlobalVisitor.matchSequentially(patternIterator, matchedIterator);
myGlobalVisitor.setResult(matched);
}
}
private void doVisitElement(PsiElement element) {
CompiledPattern pattern = myGlobalVisitor.getContext().getPattern();
if (myGlobalVisitor.getCodeBlockLevel() == 0) {
initTopLevelElement(element);
return;
}
if (canBePatternVariable(element) && pattern.isRealTypedVar(element)) {
myGlobalVisitor.handle(element);
final MatchingHandler handler = pattern.getHandler(element);
handler.setFilter(
new NodeFilter() {
public boolean accepts(PsiElement other) {
return canBePatternVariableValue(other);
}
});
super.visitElement(element);
return;
}
super.visitElement(element);
if (myGlobalVisitor.getContext().getSearchHelper().doOptimizing()
&& element instanceof LeafElement) {
ParserDefinition parserDefinition =
LanguageParserDefinitions.INSTANCE.forLanguage(element.getLanguage());
if (parserDefinition != null) {
String text = element.getText();
// todo: support variables inside comments
boolean flag = true;
if (StringUtil.isJavaIdentifier(text) && flag) {
myGlobalVisitor.processTokenizedName(
text, true, GlobalCompilingVisitor.OccurenceKind.CODE);
}
}
}
}
public void visitLiteral(PsiElement literal) {
final PsiElement l2 = myGlobalVisitor.getElement();
MatchingHandler handler = (MatchingHandler) literal.getUserData(CompiledPattern.HANDLER_KEY);
if (handler instanceof SubstitutionHandler) {
int offset = 0;
int length = l2.getTextLength();
final String text = l2.getText();
if (length > 2 && (text.charAt(0) == '"' && text.charAt(length - 1) == '"')
|| (text.charAt(0) == '\'' && text.charAt(length - 1) == '\'')) {
length--;
offset++;
}
myGlobalVisitor.setResult(
((SubstitutionHandler) handler)
.handle(l2, offset, length, myGlobalVisitor.getMatchContext()));
} else if (handler != null) {
myGlobalVisitor.setResult(handler.match(literal, l2, myGlobalVisitor.getMatchContext()));
} else {
myGlobalVisitor.setResult(literal.textMatches(l2));
}
}
private void visitLiteral(PsiElement literal) {
String value = literal.getText();
if (value.length() > 2 && (value.charAt(0) == '"' && value.charAt(value.length() - 1) == '"')
|| (value.charAt(0) == '\'' && value.charAt(value.length() - 1) == '\'')) {
if (mySubstitutionPatterns == null) {
final String[] prefixes = myGlobalVisitor.getContext().getPattern().getTypedVarPrefixes();
mySubstitutionPatterns = createPatterns(prefixes);
}
for (Pattern substitutionPattern : mySubstitutionPatterns) {
@Nullable
MatchingHandler handler =
myGlobalVisitor.processPatternStringWithFragments(
value, GlobalCompilingVisitor.OccurenceKind.LITERAL, substitutionPattern);
if (handler != null) {
literal.putUserData(CompiledPattern.HANDLER_KEY, handler);
break;
}
}
}
}
private static boolean canBePatternVariableValue(PsiElement element) {
// can be leaf element! (ex. var a = 1 <-> var $a$ = 1)
return !containsOnlyDelimeters(element.getText());
}