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8294397: Replace StringBuffer with StringBuilder within java.text

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Reviewed-by: lancea, naoto, bchristi
This commit is contained in:
Justin Lu 2022-10-05 18:42:00 +00:00 • committed by Naoto Sato
parent f2c57186a4
commit 87acfee3c3
7 changed files with 55 additions and 80 deletions
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41
src/java.base/share/classes/java/text/DigitList.java
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@ -161,12 +161,12 @@ final class DigitList implements Cloneable {
return 0.0;
}
StringBuffer temp = getStringBuffer();
temp.append('.');
temp.append(digits, 0, count);
temp.append('E');
temp.append(decimalAt);
return Double.parseDouble(temp.toString());
return Double.parseDouble(getStringBuilder()
.append('.')
.append(digits, 0, count)
.append('E')
.append(decimalAt)
.toString());
}
/**
@ -187,7 +187,7 @@ final class DigitList implements Cloneable {
return Long.MIN_VALUE;
}
StringBuffer temp = getStringBuffer();
StringBuilder temp = getStringBuilder();
temp.append(digits, 0, count);
for (int i = count; i < decimalAt; ++i) {
temp.append('0');
@ -736,7 +736,7 @@ final class DigitList implements Cloneable {
char[] newDigits = new char[digits.length];
System.arraycopy(digits, 0, newDigits, 0, digits.length);
other.digits = newDigits;
other.tempBuffer = null;
other.tempBuilder = null;
return other;
} catch (CloneNotSupportedException e) {
throw new InternalError(e);
@ -788,23 +788,24 @@ final class DigitList implements Cloneable {
if (isZero()) {
return "0";
}
StringBuffer buf = getStringBuffer();
buf.append("0.");
buf.append(digits, 0, count);
buf.append("x10^");
buf.append(decimalAt);
return buf.toString();
return getStringBuilder()
.append("0.")
.append(digits, 0, count)
.append("x10^")
.append(decimalAt)
.toString();
}
private StringBuffer tempBuffer;
private StringBuilder tempBuilder;
private StringBuffer getStringBuffer() {
if (tempBuffer == null) {
tempBuffer = new StringBuffer(MAX_COUNT);
private StringBuilder getStringBuilder() {
if (tempBuilder == null) {
tempBuilder = new StringBuilder(MAX_COUNT);
} else {
tempBuffer.setLength(0);
tempBuilder.setLength(0);
}
return tempBuffer;
return tempBuilder;
}
private void extendDigits(int len) {