Examples with Fix com.google.errorprone.fixes.Fix used on opensource projects

Example 1 with Fix

use of com.google.errorprone.fixes.Fix in project error-prone by google.

the class WildcardImport method matchCompilationUnit.

@Override
public Description matchCompilationUnit(CompilationUnitTree tree, VisitorState state) {
    ImmutableList<ImportTree> wildcardImports = getWildcardImports(tree.getImports());
    if (wildcardImports.isEmpty()) {
        return NO_MATCH;
    }
    // Find all of the types that need to be imported.
    Set<TypeToImport> typesToImport = ImportCollector.collect((JCCompilationUnit) tree);
    Fix fix = createFix(wildcardImports, typesToImport, state);
    if (fix.isEmpty()) {
        return NO_MATCH;
    }
    return describeMatch(wildcardImports.get(0), fix);
}

Example 2 with Fix

use of com.google.errorprone.fixes.Fix in project error-prone by google.

the class ElementsCountedInLoop method matchEnhancedForLoop.

@Override
public Description matchEnhancedForLoop(EnhancedForLoopTree tree, VisitorState state) {
    JCEnhancedForLoop enhancedForLoop = (JCEnhancedForLoop) tree;
    IdentifierTree identifier = getIncrementedIdentifer(extractSingleStatement(enhancedForLoop.body));
    if (identifier != null) {
        ExpressionTree expression = tree.getExpression();
        Fix fix;
        if (isSubtypeOf("java.util.Collection").matches(expression, state)) {
            String replacement = identifier + " += " + expression + ".size();";
            fix = SuggestedFix.replace(tree, replacement);
        } else if (isArrayType().matches(expression, state)) {
            String replacement = identifier + " += " + expression + ".length;";
            fix = SuggestedFix.replace(tree, replacement);
        } else {
            String replacement = identifier + " += Iterables.size(" + expression + ");";
            fix = SuggestedFix.builder().replace(tree, replacement).addImport("com.google.common.collect.Iterables").build();
        }
        return describeMatch(tree, fix);
    }
    return Description.NO_MATCH;
}

Example 3 with Fix

use of com.google.errorprone.fixes.Fix in project error-prone by google.

the class BadShiftAmount method matchBinary.

@Override
public Description matchBinary(BinaryTree tree, VisitorState state) {
    if (!BINARY_TREE_MATCHER.matches(tree, state)) {
        return Description.NO_MATCH;
    }
    /*
     * For shift amounts in [32, 63], cast the left operand to long.  Otherwise change the shift
     * amount to whatever would actually be used.
     */
    int intValue = ((Number) ((LiteralTree) tree.getRightOperand()).getValue()).intValue();
    Fix fix;
    if (intValue >= 32 && intValue <= 63) {
        if (tree.getLeftOperand().getKind() == Kind.INT_LITERAL) {
            fix = SuggestedFix.postfixWith(tree.getLeftOperand(), "L");
        } else {
            fix = SuggestedFix.prefixWith(tree, "(long) ");
        }
    } else {
        // This is the equivalent shift distance according to JLS 15.19.
        String actualShiftDistance = Integer.toString(intValue & 0x1f);
        fix = SuggestedFix.replace(tree.getRightOperand(), actualShiftDistance);
    }
    return describeMatch(tree, fix);
}

Example 4 with Fix

use of com.google.errorprone.fixes.Fix in project error-prone by google.

the class ArrayEquals method matchMethodInvocation.

/**
 * Suggests replacing with Arrays.equals(a, b). Also adds the necessary import statement for
 * java.util.Arrays.
 */
@Override
public Description matchMethodInvocation(MethodInvocationTree t, VisitorState state) {
    String arg1;
    String arg2;
    if (instanceEqualsMatcher.matches(t, state)) {
        arg1 = ((JCFieldAccess) t.getMethodSelect()).getExpression().toString();
        arg2 = t.getArguments().get(0).toString();
    } else if (staticEqualsMatcher.matches(t, state)) {
        arg1 = t.getArguments().get(0).toString();
        arg2 = t.getArguments().get(1).toString();
    } else {
        return NO_MATCH;
    }
    Fix fix = SuggestedFix.builder().replace(t, "Arrays.equals(" + arg1 + ", " + arg2 + ")").addImport("java.util.Arrays").build();
    return describeMatch(t, fix);
}

Example 5 with Fix

use of com.google.errorprone.fixes.Fix in project error-prone by google.

the class HashtableContains method replaceMethodName.

private Fix replaceMethodName(MethodInvocationTree tree, VisitorState state, String newName) {
    String source = state.getSourceForNode((JCTree) tree.getMethodSelect());
    int idx = source.lastIndexOf("contains");
    String replacement = source.substring(0, idx) + newName + source.substring(idx + "contains".length());
    Fix fix = SuggestedFix.replace(tree.getMethodSelect(), replacement);
    return fix;
}