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optimize readString

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This commit is contained in:
wenshao 2025-02-24 10:23:41 +08:00
parent cdceaf3c00
commit df76155604
2 changed files with 11 additions and 13 deletions
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8
core/src/main/java/com/alibaba/fastjson2/JSONReader.java
View File

@ -4735,12 +4735,4 @@ public abstract class JSONReader
}
return (features & MASK_EMPTY_STRING_AS_NULL) != 0 && str.isEmpty() ? null : str;
}
protected static int firstIntValue(int ch) {
return ch >= '0' && ch <= '9'
? '0' - ch
: ch == '-' || ch == '+'
? 0
: 1; // or any value > 0
}
}

16
core/src/main/java/com/alibaba/fastjson2/JSONReaderASCII.java
View File

@ -1439,8 +1439,14 @@ final class JSONReaderASCII
return readEscaped(bytes, slashIndex, start, end, slashIndex - offset, ch);
}
String str = stringValue(
subString(bytes, start, index), context.features);
String str = STRING_CREATOR_JDK11 != null
? STRING_CREATOR_JDK11.apply(Arrays.copyOfRange(bytes, start, index), LATIN1)
: new String(bytes, start, index - start, StandardCharsets.ISO_8859_1);
long features = context.features;
if ((features & MASK_TRIM_STRING) != 0) {
str = str.trim();
}
str = (features & MASK_EMPTY_STRING_AS_NULL) != 0 && str.isEmpty() ? null : str;
ch = offset == end ? EOI : bytes[offset++];
while (ch <= ' ' && (1L << ch & SPACE) != 0) {
@ -1470,10 +1476,10 @@ final class JSONReaderASCII
return slashIndex;
}
private static String subString(byte[] bytes, int start, int offset) {
private static String subString(byte[] bytes, int start, int index) {
return STRING_CREATOR_JDK11 != null
? STRING_CREATOR_JDK11.apply(Arrays.copyOfRange(bytes, start, offset), LATIN1)
: new String(bytes, start, offset - start, StandardCharsets.ISO_8859_1);
? STRING_CREATOR_JDK11.apply(Arrays.copyOfRange(bytes, start, index), LATIN1)
: new String(bytes, start, index - start, StandardCharsets.ISO_8859_1);
}
private String readEscaped(byte[] bytes, int offset, int start, int end, int valueLength, int quote) {