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Add null analysis annotations to latinime-common 

Change-Id: I06eedd9ab85e5a8890e6809bbf9e88e5b8c14e38
main
Tadashi G. Takaoka 2014-11-02 22:20:26 +09:00
parent 2cf5550749
commit 519df53599
5 changed files with 50 additions and 19 deletions
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20
common/src/com/android/inputmethod/latin/common/CodePointUtils.java
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@ -20,6 +20,8 @@ import com.android.inputmethod.annotations.UsedForTesting;
import java.util.Random;
import javax.annotation.Nonnull;
// Utility methods related with code points used for tests.
// TODO: Figure out where this class should be.
@UsedForTesting
@ -65,17 +67,23 @@ public class CodePointUtils {
};
@UsedForTesting
public static int[] generateCodePointSet(final int codePointSetSize, final Random random) {
@Nonnull
public static int[] generateCodePointSet(final int codePointSetSize,
@Nonnull final Random random) {
final int[] codePointSet = new int[codePointSetSize];
for (int i = codePointSet.length - 1; i >= 0; ) {
final int r = Math.abs(random.nextInt());
if (r < 0) continue;
if (r < 0) {
continue;
}
// Don't insert 0~0x20, but insert any other code point.
// Code points are in the range 0~0x10FFFF.
final int candidateCodePoint = 0x20 + r % (Character.MAX_CODE_POINT - 0x20);
// Code points between MIN_ and MAX_SURROGATE are not valid on their own.
if (candidateCodePoint >= Character.MIN_SURROGATE
&& candidateCodePoint <= Character.MAX_SURROGATE) continue;
&& candidateCodePoint <= Character.MAX_SURROGATE) {
continue;
}
codePointSet[i] = candidateCodePoint;
--i;
}
@ -86,8 +94,10 @@ public class CodePointUtils {
* Generates a random word.
*/
@UsedForTesting
public static String generateWord(final Random random, final int[] codePointSet) {
StringBuilder builder = new StringBuilder();
@Nonnull
public static String generateWord(@Nonnull final Random random,
@Nonnull final int[] codePointSet) {
final StringBuilder builder = new StringBuilder();
// 8 * 4 = 32 chars max, but we do it the following way so as to bias the random toward
// longer words. This should be closer to natural language, and more importantly, it will
// exercise the algorithms in dicttool much more.

11
common/src/com/android/inputmethod/latin/common/ComposedData.java
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@ -16,15 +16,20 @@
package com.android.inputmethod.latin.common;
import javax.annotation.Nonnull;
/**
* An immutable class that encapsulates a snapshot of word composition data.
*/
public class ComposedData {
@Nonnull
public final InputPointers mInputPointers;
public final boolean mIsBatchMode;
@Nonnull
public final String mTypedWord;
public ComposedData(final InputPointers inputPointers, final boolean isBatchMode,
final String typedWord) {
public ComposedData(@Nonnull final InputPointers inputPointers, final boolean isBatchMode,
@Nonnull final String typedWord) {
mInputPointers = inputPointers;
mIsBatchMode = isBatchMode;
mTypedWord = typedWord;
@ -40,7 +45,7 @@ public class ComposedData {
* @return the number of copied code points.
*/
public int copyCodePointsExceptTrailingSingleQuotesAndReturnCodePointCount(
final int[] destination) {
@Nonnull final int[] destination) {
// lastIndex is exclusive
final int lastIndex = mTypedWord.length()
- StringUtils.getTrailingSingleQuotesCount(mTypedWord);

6
common/src/com/android/inputmethod/latin/common/Constants.java
View File

@ -18,6 +18,8 @@ package com.android.inputmethod.latin.common;
import com.android.inputmethod.annotations.UsedForTesting;
import javax.annotation.Nonnull;
public final class Constants {
public static final class Color {
/**
@ -259,6 +261,7 @@ public final class Constants {
return code >= CODE_SPACE;
}
@Nonnull
public static String printableCode(final int code) {
switch (code) {
case CODE_SHIFT: return "shift";
@ -286,7 +289,8 @@ public final class Constants {
}
}
public static String printableCodes(final int[] codes) {
@Nonnull
public static String printableCodes(@Nonnull final int[] codes) {
final StringBuilder sb = new StringBuilder();
boolean addDelimiter = false;
for (final int code : codes) {

22
common/src/com/android/inputmethod/latin/common/InputPointers.java
View File

@ -18,6 +18,8 @@ package com.android.inputmethod.latin.common;
import com.android.inputmethod.annotations.UsedForTesting;
import javax.annotation.Nonnull;
// TODO: This class is not thread-safe.
public final class InputPointers {
private static final boolean DEBUG_TIME = false;
@ -28,7 +30,7 @@ public final class InputPointers {
private final ResizableIntArray mPointerIds;
private final ResizableIntArray mTimes;
public InputPointers(int defaultCapacity) {
public InputPointers(final int defaultCapacity) {
mDefaultCapacity = defaultCapacity;
mXCoordinates = new ResizableIntArray(defaultCapacity);
mYCoordinates = new ResizableIntArray(defaultCapacity);
@ -51,7 +53,8 @@ public final class InputPointers {
mTimes.fill(lastTime, fromIndex, fillLength);
}
public void addPointerAt(int index, int x, int y, int pointerId, int time) {
public void addPointerAt(final int index, final int x, final int y, final int pointerId,
final int time) {
mXCoordinates.addAt(index, x);
mYCoordinates.addAt(index, y);
mPointerIds.addAt(index, pointerId);
@ -62,21 +65,21 @@ public final class InputPointers {
}
@UsedForTesting
public void addPointer(int x, int y, int pointerId, int time) {
public void addPointer(final int x, final int y, final int pointerId, final int time) {
mXCoordinates.add(x);
mYCoordinates.add(y);
mPointerIds.add(pointerId);
mTimes.add(time);
}
public void set(InputPointers ip) {
public void set(@Nonnull final InputPointers ip) {
mXCoordinates.set(ip.mXCoordinates);
mYCoordinates.set(ip.mYCoordinates);
mPointerIds.set(ip.mPointerIds);
mTimes.set(ip.mTimes);
}
public void copy(InputPointers ip) {
public void copy(@Nonnull final InputPointers ip) {
mXCoordinates.copy(ip.mXCoordinates);
mYCoordinates.copy(ip.mYCoordinates);
mPointerIds.copy(ip.mPointerIds);
@ -93,8 +96,9 @@ public final class InputPointers {
* @param startPos the starting index of the data in {@code times} and etc.
* @param length the number of data to be appended.
*/
public void append(int pointerId, ResizableIntArray times, ResizableIntArray xCoordinates,
ResizableIntArray yCoordinates, int startPos, int length) {
public void append(final int pointerId, @Nonnull final ResizableIntArray times,
@Nonnull final ResizableIntArray xCoordinates,
@Nonnull final ResizableIntArray yCoordinates, final int startPos, final int length) {
if (length == 0) {
return;
}
@ -127,14 +131,17 @@ public final class InputPointers {
return mXCoordinates.getLength();
}
@Nonnull
public int[] getXCoordinates() {
return mXCoordinates.getPrimitiveArray();
}
@Nonnull
public int[] getYCoordinates() {
return mYCoordinates.getPrimitiveArray();
}
@Nonnull
public int[] getPointerIds() {
return mPointerIds.getPrimitiveArray();
}
@ -145,6 +152,7 @@ public final class InputPointers {
* @return The time each point was registered, in milliseconds, relative to the first event in
* the sequence.
*/
@Nonnull
public int[] getTimes() {
return mTimes.getPrimitiveArray();
}

10
common/src/com/android/inputmethod/latin/common/ResizableIntArray.java
View File

@ -18,8 +18,11 @@ package com.android.inputmethod.latin.common;
import java.util.Arrays;
import javax.annotation.Nonnull;
// TODO: This class is not thread-safe.
public final class ResizableIntArray {
@Nonnull
private int[] mArray;
private int mLength;
@ -89,17 +92,18 @@ public final class ResizableIntArray {
mLength = 0;
}
@Nonnull
public int[] getPrimitiveArray() {
return mArray;
}
public void set(final ResizableIntArray ip) {
public void set(@Nonnull final ResizableIntArray ip) {
// TODO: Implement primitive array pool.
mArray = ip.mArray;
mLength = ip.mLength;
}
public void copy(final ResizableIntArray ip) {
public void copy(@Nonnull final ResizableIntArray ip) {
final int newCapacity = calculateCapacity(ip.mLength);
if (newCapacity > 0) {
// TODO: Implement primitive array pool.
@ -109,7 +113,7 @@ public final class ResizableIntArray {
mLength = ip.mLength;
}
public void append(final ResizableIntArray src, final int startPos, final int length) {
public void append(@Nonnull final ResizableIntArray src, final int startPos, final int length) {
if (length == 0) {
return;
}