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8334328: Reduce object allocation for FloatToDecimal and DoubleToDecimal

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Reviewed-by: redestad, rgiulietti
This commit is contained in:
Shaojin Wen 2024-06-27 05:13:30 +00:00 • committed by Chen Liang
parent 9bb675f89d
commit 9d20b58f40
5 changed files with 401 additions and 349 deletions
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19
src/java.base/share/classes/java/lang/AbstractStringBuilder.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2003, 2023, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2003, 2024, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -885,13 +885,10 @@ abstract sealed class AbstractStringBuilder implements Appendable, CharSequence
* @return a reference to this object.
*/
public AbstractStringBuilder append(float f) {
try {
FloatToDecimal.appendTo(f, this);
} catch (IOException e) {
throw new AssertionError(e);
}
ensureCapacityInternal(count + FloatToDecimal.MAX_CHARS);
FloatToDecimal toDecimal = isLatin1() ? FloatToDecimal.LATIN1 : FloatToDecimal.UTF16;
count = toDecimal.putDecimal(value, count, f);
return this;
}
/**
@ -907,11 +904,9 @@ abstract sealed class AbstractStringBuilder implements Appendable, CharSequence
* @return a reference to this object.
*/
public AbstractStringBuilder append(double d) {
try {
DoubleToDecimal.appendTo(d, this);
} catch (IOException e) {
throw new AssertionError(e);
}
ensureCapacityInternal(count + DoubleToDecimal.MAX_CHARS);
DoubleToDecimal toDecimal = isLatin1() ? DoubleToDecimal.LATIN1 : DoubleToDecimal.UTF16;
count = toDecimal.putDecimal(value, count, d);
return this;
}