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

Example 31 with BinaryExpressionTree

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

the class CFG method buildBinaryExpression.

private void buildBinaryExpression(Tree tree) {
    BinaryExpressionTree binaryExpressionTree = (BinaryExpressionTree) tree;
    currentBlock.elements.add(tree);
    build(binaryExpressionTree.rightOperand());
    build(binaryExpressionTree.leftOperand());
}

Example 32 with BinaryExpressionTree

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

the class ExpressionUtilsTest method test_skip_parenthesis.

@Test
public void test_skip_parenthesis() throws Exception {
    File file = new File("src/test/java/org/sonar/java/model/ExpressionUtilsTest.java");
    CompilationUnitTree tree = (CompilationUnitTree) JavaParser.createParser().parse(file);
    MethodTree methodTree = (MethodTree) ((ClassTree) tree.types().get(0)).members().get(0);
    ExpressionTree parenthesis = ((ReturnStatementTree) methodTree.block().body().get(0)).expression();
    assertThat(parenthesis.is(Tree.Kind.PARENTHESIZED_EXPRESSION)).isTrue();
    ExpressionTree skipped = ExpressionUtils.skipParentheses(parenthesis);
    assertThat(skipped.is(Tree.Kind.CONDITIONAL_AND)).isTrue();
    assertThat(ExpressionUtils.skipParentheses(((BinaryExpressionTree) skipped).leftOperand()).is(Tree.Kind.IDENTIFIER)).isTrue();
}

Example 33 with BinaryExpressionTree

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

the class IdenticalOperandOnBinaryExpressionCheck method visitNode.

@Override
public void visitNode(Tree tree) {
    if (tree.is(Tree.Kind.METHOD_INVOCATION)) {
        MethodInvocationTree mit = (MethodInvocationTree) tree;
        checkEqualsMethods(mit);
        return;
    }
    BinaryExpressionTree binaryExpressionTree = (BinaryExpressionTree) tree;
    ExpressionTree rightOperand = binaryExpressionTree.rightOperand();
    ExpressionTree equivalentOperand = equivalentOperand(binaryExpressionTree, rightOperand);
    if (equivalentOperand != null) {
        reportIssue(rightOperand, "Correct one of the identical sub-expressions on both sides of operator \"" + binaryExpressionTree.operatorToken().text() + "\"", ImmutableList.of(new JavaFileScannerContext.Location("", equivalentOperand)), null);
    }
}

Example 34 with BinaryExpressionTree

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

the class IndexOfStartPositionCheck method visitNode.

@Override
public void visitNode(Tree tree) {
    ExpressionTree leftOperand = ExpressionUtils.skipParentheses(((BinaryExpressionTree) tree).leftOperand());
    ExpressionTree rightOperand = ExpressionUtils.skipParentheses(((BinaryExpressionTree) tree).rightOperand());
    if (leftOperand.is(Tree.Kind.METHOD_INVOCATION)) {
        checkIndexOfInvocation((MethodInvocationTree) leftOperand, rightOperand);
    } else if (rightOperand.is(Tree.Kind.METHOD_INVOCATION)) {
        checkIndexOfInvocation((MethodInvocationTree) rightOperand, leftOperand);
    }
}

Example 35 with BinaryExpressionTree

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

the class ForLoopFalseConditionCheck method isConditionFalseAtInitialization.

private static boolean isConditionFalseAtInitialization(ForStatementTree forStatement) {
    Iterable<ForLoopInitializer> initializers = ForLoopInitializer.list(forStatement);
    ExpressionTree condition = forStatement.condition();
    if (!condition.is(Tree.Kind.GREATER_THAN, Tree.Kind.GREATER_THAN_OR_EQUAL_TO, Tree.Kind.LESS_THAN, Tree.Kind.LESS_THAN_OR_EQUAL_TO)) {
        return false;
    }
    BinaryExpressionTree binaryCondition = (BinaryExpressionTree) condition;
    Integer leftOperand = eval(binaryCondition.leftOperand(), initializers);
    Integer rightOperand = eval(binaryCondition.rightOperand(), initializers);
    if (leftOperand != null && rightOperand != null) {
        return !evaluateCondition(condition, leftOperand, rightOperand);
    }
    return false;
}