Examples with ExpressionTree org.sonar.plugins.java.api.tree.ExpressionTree used on opensource projects

Example 91 with ExpressionTree

use of org.sonar.plugins.java.api.tree.ExpressionTree in project sonar-java by SonarSource.

the class ThreadAsRunnableArgumentCheck method checkArgumentsTypes.

private void checkArgumentsTypes(List<ExpressionTree> arguments, MethodJavaSymbol methodSymbol) {
    List<Type> parametersTypes = methodSymbol.parameterTypes();
    // FIXME As arguments are not handled for method resolution using static imports, the provided methodSymbol may not match.
    if (!parametersTypes.isEmpty()) {
        for (int index = 0; index < arguments.size(); index++) {
            ExpressionTree argument = arguments.get(index);
            Type providedType = argument.symbolType();
            if (!argument.is(Kind.NULL_LITERAL) && isThreadAsRunnable(providedType, parametersTypes, index, methodSymbol.isVarArgs())) {
                reportIssue(argument, getMessage(argument, providedType, index));
            }
        }
    }
}

Example 92 with ExpressionTree

use of org.sonar.plugins.java.api.tree.ExpressionTree in project sonar-java by SonarSource.

the class ThreadAsRunnableArgumentCheck method visitNode.

@Override
public void visitNode(Tree tree) {
    if (!hasSemantic()) {
        return;
    }
    List<ExpressionTree> arguments;
    Symbol methodSymbol;
    if (tree.is(Kind.NEW_CLASS)) {
        NewClassTree nct = (NewClassTree) tree;
        methodSymbol = nct.constructorSymbol();
        arguments = nct.arguments();
    } else {
        MethodInvocationTree mit = (MethodInvocationTree) tree;
        methodSymbol = mit.symbol();
        arguments = mit.arguments();
    }
    if (!arguments.isEmpty() && methodSymbol.isMethodSymbol()) {
        checkArgumentsTypes(arguments, (MethodJavaSymbol) methodSymbol);
    }
}

Example 93 with ExpressionTree

use of org.sonar.plugins.java.api.tree.ExpressionTree in project sonar-java by SonarSource.

the class SecureCookieCheck method isSetSecureCall.

private static boolean isSetSecureCall(MethodInvocationTree mit) {
    Symbol methodSymbol = mit.symbol();
    boolean hasArityOne = mit.arguments().size() == 1;
    if (hasArityOne && isCallSiteCookie(methodSymbol)) {
        ExpressionTree expressionTree = mit.arguments().get(0);
        if (expressionTree.is(Tree.Kind.BOOLEAN_LITERAL) && "false".equals(((LiteralTree) expressionTree).value())) {
            return false;
        }
        return "setSecure".equals(getIdentifier(mit).name());
    }
    return false;
}

Example 94 with ExpressionTree

use of org.sonar.plugins.java.api.tree.ExpressionTree in project sonar-java by SonarSource.

the class ShiftOnIntOrLongCheck method checkShiftTree.

private void checkShiftTree(Tree tree, int treeIndex) {
    String identifier;
    ExpressionTree shift;
    SyntaxToken operatorToken;
    if (tree.is(Kind.LEFT_SHIFT, Kind.RIGHT_SHIFT)) {
        BinaryExpressionTree binaryExpressionTree = (BinaryExpressionTree) tree;
        if (isZeroMaskShift(binaryExpressionTree)) {
            // No issue should be reported for "1 << 0" or "1 >> 0"
            return;
        }
        identifier = getIdentifierName(binaryExpressionTree.leftOperand());
        shift = binaryExpressionTree.rightOperand();
        operatorToken = binaryExpressionTree.operatorToken();
    } else {
        AssignmentExpressionTree assignmentExpressionTree = (AssignmentExpressionTree) tree;
        identifier = getIdentifierName(assignmentExpressionTree.variable());
        shift = assignmentExpressionTree.expression();
        operatorToken = assignmentExpressionTree.operatorToken();
    }
    checkShift((ExpressionTree) tree, shift, identifier, operatorToken, treeIndex);
}

Example 95 with ExpressionTree

use of org.sonar.plugins.java.api.tree.ExpressionTree in project sonar-java by SonarSource.

the class SillyEqualsCheck method onMethodInvocationFound.

@Override
protected void onMethodInvocationFound(MethodInvocationTree tree) {
    ExpressionTree firstArgument = Iterables.getOnlyElement(tree.arguments());
    Type argumentType = firstArgument.symbolType().erasure();
    if (argumentType.isPrimitive()) {
        argumentType = ((JavaType) argumentType).primitiveWrapperType();
    }
    Type ownerType = getMethodOwnerType(tree).erasure();
    IdentifierTree methodInvocationName = ExpressionUtils.methodName(tree);
    if (isLiteralNull(firstArgument)) {
        reportIssue(methodInvocationName, "Remove this call to \"equals\"; comparisons against null always return false; consider using '== null' to check for nullity.");
    } else if (ownerType.isArray()) {
        checkWhenOwnerIsArray(methodInvocationName, (Type.ArrayType) ownerType, argumentType);
    } else {
        checkWhenOwnerIsNotArray(methodInvocationName, ownerType, argumentType);
    }
}