Examples with MethodSymbol com.sun.tools.javac.code.Symbol.MethodSymbol used on opensource projects

Example 36 with MethodSymbol

use of com.sun.tools.javac.code.Symbol.MethodSymbol in project bazel by bazelbuild.

the class TreeUtils method hasExplicitConstructor.

/**
     * Determine whether the given class contains an explicit constructor.
     *
     * @param node A class tree.
     * @return True, iff there is an explicit constructor.
     */
public static boolean hasExplicitConstructor(ClassTree node) {
    TypeElement elem = TreeUtils.elementFromDeclaration(node);
    for (ExecutableElement ee : ElementFilter.constructorsIn(elem.getEnclosedElements())) {
        MethodSymbol ms = (MethodSymbol) ee;
        long mod = ms.flags();
        if ((mod & Flags.SYNTHETIC) == 0) {
            return true;
        }
    }
    return false;
}

Example 37 with MethodSymbol

use of com.sun.tools.javac.code.Symbol.MethodSymbol in project error-prone by google.

the class ChainingConstructorIgnoresParameter method matchMethod.

@Override
public Description matchMethod(MethodTree tree, VisitorState state) {
    MethodSymbol symbol = getSymbol(tree);
    if (!symbol.isConstructor()) {
        return NO_MATCH;
    }
    paramTypesForMethod.put(symbol, unmodifiableList(tree.getParameters()));
    return evaluateCallers(symbol);
}

Example 38 with MethodSymbol

use of com.sun.tools.javac.code.Symbol.MethodSymbol in project error-prone by google.

the class CheckReturnValue method checkEnclosingClasses.

private static Optional<Boolean> checkEnclosingClasses(MethodSymbol method, VisitorState state) {
    Symbol enclosingClass = enclosingClass(method);
    while (enclosingClass instanceof ClassSymbol) {
        Optional<Boolean> result = shouldCheckReturnValue(enclosingClass, state);
        if (result.isPresent()) {
            return result;
        }
        enclosingClass = enclosingClass.owner;
    }
    return Optional.absent();
}

Example 39 with MethodSymbol

use of com.sun.tools.javac.code.Symbol.MethodSymbol in project error-prone by google.

the class FunctionalInterfaceClash method matchClass.

@Override
public Description matchClass(ClassTree tree, VisitorState state) {
    ClassSymbol origin = getSymbol(tree);
    Types types = state.getTypes();
    // collect declared and inherited methods whose signature contains a functional interface
    Multimap<String, MethodSymbol> methods = HashMultimap.create();
    for (Symbol sym : types.membersClosure(getType(tree), /*skipInterface=*/
    false).getSymbols()) {
        if (!(sym instanceof MethodSymbol)) {
            continue;
        }
        if (isBugCheckerSuppressed((MethodSymbol) sym)) {
            continue;
        }
        MethodSymbol msym = (MethodSymbol) sym;
        if (msym.getParameters().stream().noneMatch(p -> maybeFunctionalInterface(p.type, types))) {
            continue;
        }
        if (msym.isConstructor() && !msym.owner.equals(origin)) {
            continue;
        }
        methods.put(functionalInterfaceSignature(state, msym), msym);
    }
    // (don't report clashes between inherited members)
    for (Tree member : tree.getMembers()) {
        if (!(member instanceof MethodTree)) {
            continue;
        }
        MethodSymbol msym = getSymbol((MethodTree) member);
        if (msym.getParameters().stream().noneMatch(p -> maybeFunctionalInterface(p.type, types))) {
            continue;
        }
        Collection<MethodSymbol> clash = new ArrayList<>(methods.removeAll(functionalInterfaceSignature(state, msym)));
        clash.remove(msym);
        // ignore inherited methods that are overridden in the original class
        clash.removeIf(m -> msym.overrides(m, origin, types, false));
        if (!clash.isEmpty()) {
            String message = "When passing lambda arguments to this function, callers will need a cast to" + " disambiguate with: " + clash.stream().map(m -> Signatures.prettyMethodSignature(origin, m)).collect(joining("\n    "));
            state.reportMatch(buildDescription(member).setMessage(message).build());
        }
    }
    return NO_MATCH;
}

Example 40 with MethodSymbol

use of com.sun.tools.javac.code.Symbol.MethodSymbol in project error-prone by google.

the class InfiniteRecursion method matchMethod.

@Override
public Description matchMethod(MethodTree tree, VisitorState state) {
    if (tree.getBody() == null || tree.getBody().getStatements().size() != 1) {
        return NO_MATCH;
    }
    Tree statement = TreeInfo.skipParens((JCTree) Iterables.getOnlyElement(tree.getBody().getStatements()));
    ExpressionTree expr = statement.accept(new SimpleTreeVisitor<ExpressionTree, Void>() {

        @Override
        public ExpressionTree visitExpressionStatement(ExpressionStatementTree tree, Void unused) {
            return tree.getExpression();
        }

        @Override
        public ExpressionTree visitReturn(ReturnTree tree, Void unused) {
            return tree.getExpression();
        }
    }, null);
    if (!(expr instanceof MethodInvocationTree)) {
        return NO_MATCH;
    }
    ExpressionTree select = ((MethodInvocationTree) expr).getMethodSelect();
    switch(select.getKind()) {
        case IDENTIFIER:
            break;
        case MEMBER_SELECT:
            ExpressionTree receiver = ((MemberSelectTree) select).getExpression();
            if (receiver.getKind() != Kind.IDENTIFIER) {
                return NO_MATCH;
            }
            if (!((IdentifierTree) receiver).getName().contentEquals("this")) {
                return NO_MATCH;
            }
            break;
        default:
            return NO_MATCH;
    }
    MethodSymbol sym = ASTHelpers.getSymbol(tree);
    if (sym == null || !sym.equals(ASTHelpers.getSymbol(expr))) {
        return NO_MATCH;
    }
    return describeMatch(statement);
}