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Improve performance of skipWhiteSpace at decoding

This commit is contained in:
Masaaki Goshima 2020-04-30 19:08:50 +09:00
parent 0a48fecb1e
commit e50e1d4878
1 changed files with 12 additions and 2 deletions
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14
decode_context.go
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@ -1,5 +1,16 @@
package json package json
var (
isWhiteSpace = [256]bool{}
)
func init() {
isWhiteSpace[' '] = true
isWhiteSpace['\n'] = true
isWhiteSpace['\t'] = true
isWhiteSpace['\r'] = true
}
type context struct { type context struct {
cursor int cursor int
buf []byte buf []byte
@ -16,8 +27,7 @@ func (c *context) skipWhiteSpace() int {
buflen := c.buflen buflen := c.buflen
buf := c.buf buf := c.buf
for cursor := c.cursor; cursor < buflen; cursor++ { for cursor := c.cursor; cursor < buflen; cursor++ {
switch buf[cursor] { if isWhiteSpace[buf[cursor]] {
case ' ', '\n', '\t', '\r':
continue continue
} }
c.cursor = cursor c.cursor = cursor