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

Example 61 with ExpressionTree

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

the class MagicNumberCheck method visitVariable.

@Override
public void visitVariable(VariableTree tree) {
    ExpressionTree initializer = tree.initializer();
    boolean arrayNotInitialized = initializer != null && initializer.is(Kind.NEW_ARRAY) && ((NewArrayTree) initializer).initializers().isEmpty();
    boolean isFinalOrNoSemantic = context.getSemanticModel() == null || tree.symbol().isFinal();
    if (arrayNotInitialized || !isFinalOrNoSemantic) {
        super.visitVariable(tree);
    }
}

Example 62 with ExpressionTree

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

the class RawByteBitwiseOperationsCheck method visitBinaryExpression.

@Override
public void visitBinaryExpression(BinaryExpressionTree tree) {
    super.visitBinaryExpression(tree);
    if (isShifting(tree)) {
        shifts.add(tree);
        return;
    }
    if (isSecuringByte(tree)) {
        byteContainments.add(tree);
        return;
    }
    if (isIntegerOrLongExpected(tree.symbolType())) {
        ExpressionTree leftOperand = ExpressionUtils.skipParentheses(tree.leftOperand());
        ExpressionTree rightOperand = ExpressionUtils.skipParentheses(tree.rightOperand());
        checkShiftWithoutByteSecuring(leftOperand, rightOperand);
        checkShiftWithoutByteSecuring(rightOperand, leftOperand);
    }
}

Example 63 with ExpressionTree

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

the class RedundantTypeCastCheck method targetType.

@CheckForNull
private static Type targetType(TypeCastTree tree) {
    Tree parent = skipParentheses(tree.parent());
    Type target = null;
    if (parent.is(Tree.Kind.RETURN_STATEMENT)) {
        Tree method = parent;
        while (!method.is(Tree.Kind.METHOD, Tree.Kind.LAMBDA_EXPRESSION)) {
            method = method.parent();
        }
        target = method.is(Tree.Kind.LAMBDA_EXPRESSION) ? null : ((MethodJavaType) ((MethodTree) method).symbol().type()).resultType();
    } else if (parent.is(Tree.Kind.VARIABLE)) {
        VariableTree variableTree = (VariableTree) parent;
        target = variableTree.symbol().type();
    } else if (parent.is(Tree.Kind.METHOD_INVOCATION)) {
        MethodInvocationTree mit = (MethodInvocationTree) parent;
        if (mit.symbol().isMethodSymbol()) {
            JavaSymbol.MethodJavaSymbol sym = (JavaSymbol.MethodJavaSymbol) mit.symbol();
            int castArgIndex = mit.arguments().indexOf(tree);
            target = sym.parameterTypes().get(castArgIndex);
        }
    } else if (parent.is(Tree.Kind.MEMBER_SELECT, Tree.Kind.CONDITIONAL_EXPRESSION)) {
        target = tree.type().symbolType();
    } else if (parent.is(Tree.Kind.ARRAY_ACCESS_EXPRESSION)) {
        target = ((ArrayAccessExpressionTree) parent).expression().symbolType();
    } else if (parent instanceof ExpressionTree) {
        target = ((ExpressionTree) parent).symbolType();
    }
    return target;
}

Example 64 with ExpressionTree

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

the class OverwrittenKeyCheck method isMapPut.

@CheckForNull
private static CollectionAndKey isMapPut(StatementTree statementTree) {
    if (statementTree.is(Tree.Kind.EXPRESSION_STATEMENT)) {
        ExpressionTree expression = ((ExpressionStatementTree) statementTree).expression();
        if (expression.is(Tree.Kind.METHOD_INVOCATION) && MAP_PUT.matches((MethodInvocationTree) expression)) {
            MethodInvocationTree mapPut = (MethodInvocationTree) expression;
            Symbol collection = mapPut.methodSelect().is(Tree.Kind.MEMBER_SELECT) ? symbolFromIdentifier(((MemberSelectExpressionTree) mapPut.methodSelect()).expression()) : null;
            ExpressionTree keyTree = mapPut.arguments().get(0);
            Object key = extractKey(keyTree);
            if (collection != null && key != null) {
                return new CollectionAndKey(collection, keyTree, key, false, null);
            }
        }
    }
    return null;
}

Example 65 with ExpressionTree

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

the class OverwrittenKeyCheck method isArrayAssignment.

@CheckForNull
private static CollectionAndKey isArrayAssignment(StatementTree statementTree) {
    if (statementTree.is(Tree.Kind.EXPRESSION_STATEMENT)) {
        ExpressionTree expression = ((ExpressionStatementTree) statementTree).expression();
        if (expression.is(Tree.Kind.ASSIGNMENT)) {
            AssignmentExpressionTree assignment = (AssignmentExpressionTree) expression;
            ExpressionTree variable = assignment.variable();
            if (variable.is(Tree.Kind.ARRAY_ACCESS_EXPRESSION)) {
                ArrayAccessExpressionTree aaet = (ArrayAccessExpressionTree) variable;
                Symbol collection = symbolFromIdentifier(aaet.expression());
                ExpressionTree keyTree = aaet.dimension().expression();
                Object key = extractKey(keyTree);
                if (collection != null && key != null) {
                    return new CollectionAndKey(collection, keyTree, key, true, assignment.expression());
                }
            }
        }
    }
    return null;
}