Examples with ExpressionTree com.sun.source.tree.ExpressionTree used on opensource projects

Example 76 with ExpressionTree

use of com.sun.source.tree.ExpressionTree in project error-prone by google.

the class ArraysAsListPrimitiveArray method matchMethodInvocation.

@Override
public Description matchMethodInvocation(MethodInvocationTree tree, VisitorState state) {
    if (!ARRAYS_AS_LIST_SINGLE_ARRAY.matches(tree, state)) {
        return NO_MATCH;
    }
    ExpressionTree array = Iterables.getOnlyElement(tree.getArguments());
    Type componentType = ((ArrayType) ASTHelpers.getType(array)).getComponentType();
    if (!componentType.isPrimitive()) {
        return NO_MATCH;
    }
    String guavaUtils = GUAVA_UTILS.get(componentType.getKind());
    if (guavaUtils == null) {
        return NO_MATCH;
    }
    Fix fix = SuggestedFix.builder().addImport("com.google.common.primitives." + guavaUtils).replace(tree.getMethodSelect(), guavaUtils + ".asList").build();
    return describeMatch(tree, fix);
}

Example 77 with ExpressionTree

use of com.sun.source.tree.ExpressionTree in project error-prone by google.

the class BadComparable method matchTypeCast.

@Override
public Description matchTypeCast(TypeCastTree tree, VisitorState state) {
    // Check for a narrowing match first as its simplest match to test.
    if (!matches(tree, state)) {
        return Description.NO_MATCH;
    }
    // Test that the match is in a Comparable.compareTo or Comparator.compare method.
    ClassTree declaringClass = ASTHelpers.findEnclosingNode(state.getPath(), ClassTree.class);
    if (!COMPARABLE_CLASS_MATCHER.matches(declaringClass, state) && !COMPARATOR_CLASS_MATCHER.matches(declaringClass, state)) {
        return Description.NO_MATCH;
    }
    MethodTree method = ASTHelpers.findEnclosingNode(state.getPath(), MethodTree.class);
    if (method == null) {
        return Description.NO_MATCH;
    }
    if (!COMPARABLE_METHOD_MATCHER.matches(method, state) && !COMPARATOR_METHOD_MATCHER.matches(method, state)) {
        return Description.NO_MATCH;
    }
    // Get the unparenthesized expression.
    BinaryTree subtract = (BinaryTree) TreeInfo.skipParens((JCExpression) tree.getExpression());
    ExpressionTree lhs = subtract.getLeftOperand();
    ExpressionTree rhs = subtract.getRightOperand();
    Fix fix;
    if (ASTHelpers.getType(lhs).isPrimitive()) {
        fix = SuggestedFix.replace(tree, "Long.compare(" + lhs + ", " + rhs + ")");
    } else {
        fix = SuggestedFix.replace(tree, lhs + ".compareTo(" + rhs + ")");
    }
    return describeMatch(tree, fix);
}

Example 78 with ExpressionTree

use of com.sun.source.tree.ExpressionTree in project error-prone by google.

the class MyCustomCheck method matchMethodInvocation.

@Override
public Description matchMethodInvocation(MethodInvocationTree tree, VisitorState state) {
    if (!PRINT_METHOD.matches(tree, state)) {
        return NO_MATCH;
    }
    Symbol base = tree.getMethodSelect().accept(new TreeScanner<Symbol, Void>() {

        @Override
        public Symbol visitIdentifier(IdentifierTree node, Void unused) {
            return ASTHelpers.getSymbol(node);
        }

        @Override
        public Symbol visitMemberSelect(MemberSelectTree node, Void unused) {
            return super.visitMemberSelect(node, null);
        }
    }, null);
    if (!Objects.equals(base, state.getSymtab().systemType.tsym)) {
        return NO_MATCH;
    }
    ExpressionTree arg = Iterables.getOnlyElement(tree.getArguments());
    if (!STRING_FORMAT.matches(arg, state)) {
        return NO_MATCH;
    }
    List<? extends ExpressionTree> formatArgs = ((MethodInvocationTree) arg).getArguments();
    return describeMatch(tree, SuggestedFix.builder().replace(((JCTree) tree).getStartPosition(), ((JCTree) formatArgs.get(0)).getStartPosition(), "System.err.printf(").replace(state.getEndPosition((JCTree) getLast(formatArgs)), state.getEndPosition((JCTree) tree), ")").build());
}