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Unified Diff: mojo/public/java/bindings/src/org/chromium/mojo/bindings/BindingsHelper.java

Issue 814543006: Move //mojo/{public, edk} underneath //third_party (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Rebase Created 5 years, 11 months ago
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Index: mojo/public/java/bindings/src/org/chromium/mojo/bindings/BindingsHelper.java
diff --git a/mojo/public/java/bindings/src/org/chromium/mojo/bindings/BindingsHelper.java b/mojo/public/java/bindings/src/org/chromium/mojo/bindings/BindingsHelper.java
deleted file mode 100644
index 01cddc4880aaa6042826ae4c6d69173b118d44cf..0000000000000000000000000000000000000000
--- a/mojo/public/java/bindings/src/org/chromium/mojo/bindings/BindingsHelper.java
+++ /dev/null
@@ -1,189 +0,0 @@
-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package org.chromium.mojo.bindings;
-
-import org.chromium.mojo.bindings.Struct.DataHeader;
-import org.chromium.mojo.system.AsyncWaiter;
-import org.chromium.mojo.system.Handle;
-
-/**
- * Helper functions.
- */
-public class BindingsHelper {
- /**
- * Alignment in bytes for mojo serialization.
- */
- public static final int ALIGNMENT = 8;
-
- /**
- * The size, in bytes, of a serialized handle. A handle is serialized as an int representing the
- * offset of the handle in the list of handles.
- */
- public static final int SERIALIZED_HANDLE_SIZE = 4;
-
- /**
- * The size, in bytes, of a serialized pointer. A pointer is serializaed as an unsigned long
- * representing the offset from its position to the pointed elemnt.
- */
- public static final int POINTER_SIZE = 8;
-
- /**
- * The header for a serialized map element.
- */
- public static final DataHeader MAP_STRUCT_HEADER = new DataHeader(24, 2);
-
- /**
- * The value used for the expected length of a non-fixed size array.
- */
- public static final int UNSPECIFIED_ARRAY_LENGTH = -1;
-
- /**
- * Passed as |arrayNullability| when neither the array nor its elements are nullable.
- */
- public static final int NOTHING_NULLABLE = 0;
-
- /**
- * "Array bit" of |arrayNullability| is set iff the array itself is nullable.
- */
- public static final int ARRAY_NULLABLE = (1 << 0);
-
- /**
- * "Element bit" of |arrayNullability| is set iff the array elements are nullable.
- */
- public static final int ELEMENT_NULLABLE = (1 << 1);
-
- public static boolean isArrayNullable(int arrayNullability) {
- return (arrayNullability & ARRAY_NULLABLE) > 0;
- }
-
- public static boolean isElementNullable(int arrayNullability) {
- return (arrayNullability & ELEMENT_NULLABLE) > 0;
- }
-
- /**
- * Align |size| on {@link BindingsHelper#ALIGNMENT}.
- */
- public static int align(int size) {
- return (size + ALIGNMENT - 1) & ~(ALIGNMENT - 1);
- }
-
- /**
- * Align |size| on {@link BindingsHelper#ALIGNMENT}.
- */
- public static long align(long size) {
- return (size + ALIGNMENT - 1) & ~(ALIGNMENT - 1);
- }
-
- /**
- * Compute the size in bytes of the given string encoded as utf8.
- */
- public static int utf8StringSizeInBytes(String s) {
- int res = 0;
- for (int i = 0; i < s.length(); ++i) {
- char c = s.charAt(i);
- int codepoint = c;
- if (isSurrogate(c)) {
- i++;
- char c2 = s.charAt(i);
- codepoint = Character.toCodePoint(c, c2);
- }
- res += 1;
- if (codepoint > 0x7f) {
- res += 1;
- if (codepoint > 0x7ff) {
- res += 1;
- if (codepoint > 0xffff) {
- res += 1;
- if (codepoint > 0x1fffff) {
- res += 1;
- if (codepoint > 0x3ffffff) {
- res += 1;
- }
- }
- }
- }
- }
- }
- return res;
- }
-
- /**
- * Returns |true| if and only if the two objects are equals, handling |null|.
- */
- public static boolean equals(Object o1, Object o2) {
- if (o1 == o2) {
- return true;
- }
- if (o1 == null) {
- return false;
- }
- return o1.equals(o2);
- }
-
- /**
- * Returns the hash code of the object, handling |null|.
- */
- public static int hashCode(Object o) {
- if (o == null) {
- return 0;
- }
- return o.hashCode();
- }
-
- /**
- * Returns the hash code of the value.
- */
- public static int hashCode(boolean o) {
- return o ? 1231 : 1237;
- }
-
- /**
- * Returns the hash code of the value.
- */
- public static int hashCode(long o) {
- return (int) (o ^ (o >>> 32));
- }
-
- /**
- * Returns the hash code of the value.
- */
- public static int hashCode(float o) {
- return Float.floatToIntBits(o);
- }
-
- /**
- * Returns the hash code of the value.
- */
- public static int hashCode(double o) {
- return hashCode(Double.doubleToLongBits(o));
- }
-
- /**
- * Returns the hash code of the value.
- */
- public static int hashCode(int o) {
- return o;
- }
-
- /**
- * Determines if the given {@code char} value is a Unicode <i>surrogate code unit</i>. See
- * {@link Character#isSurrogate}. Extracting here because the method only exists at API level
- * 19.
- */
- private static boolean isSurrogate(char c) {
- return c >= Character.MIN_SURROGATE && c < (Character.MAX_SURROGATE + 1);
- }
-
- /**
- * Returns an {@link AsyncWaiter} to use with the given handle, or |null| if none if available.
- */
- static AsyncWaiter getDefaultAsyncWaiterForHandle(Handle handle) {
- if (handle.getCore() != null) {
- return handle.getCore().getDefaultAsyncWaiter();
- } else {
- return null;
- }
- }
-}

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