summaryrefslogtreecommitdiff
path: root/vendor/go.opentelemetry.io/otel/trace/hex.go
diff options
context:
space:
mode:
authorLibravatar kim <grufwub@gmail.com>2025-09-04 15:29:27 +0200
committerLibravatar kim <gruf@noreply.codeberg.org>2025-09-04 15:29:27 +0200
commit78defcd9166a202eb3140dc27afd288e1f9bfec4 (patch)
treedfe061abc810096f0141b7f585d38401c099c488 /vendor/go.opentelemetry.io/otel/trace/hex.go
parent[performance] faster request id generation (#4405) (diff)
downloadgotosocial-78defcd9166a202eb3140dc27afd288e1f9bfec4.tar.xz
[chore] bump dependencies (#4406)
- codeberg.org/gruf/go-ffmpreg: v0.6.9 -> v0.6.10 - github.com/ncruces/go-sqlite3: v0.27.1 -> v0.28.0 - github.com/stretchr/testify: v1.10.0 -> v1.11.1 - github.com/tdewolff/minify/v2 v2.23.11 -> v2.24.2 - go.opentelemetry.io/otel{,/*}: v1.37.0 -> v1.38.0 - go.opentelemetry.io/contrib/*: v0.62.0 -> v0.63.0 Reviewed-on: https://codeberg.org/superseriousbusiness/gotosocial/pulls/4406 Co-authored-by: kim <grufwub@gmail.com> Co-committed-by: kim <grufwub@gmail.com>
Diffstat (limited to 'vendor/go.opentelemetry.io/otel/trace/hex.go')
-rw-r--r--vendor/go.opentelemetry.io/otel/trace/hex.go38
1 files changed, 38 insertions, 0 deletions
diff --git a/vendor/go.opentelemetry.io/otel/trace/hex.go b/vendor/go.opentelemetry.io/otel/trace/hex.go
new file mode 100644
index 000000000..1cbef1d4b
--- /dev/null
+++ b/vendor/go.opentelemetry.io/otel/trace/hex.go
@@ -0,0 +1,38 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package trace // import "go.opentelemetry.io/otel/trace"
+
+const (
+ // hexLU is a hex lookup table of the 16 lowercase hex digits.
+ // The character values of the string are indexed at the equivalent
+ // hexadecimal value they represent. This table efficiently encodes byte data
+ // into a string representation of hexadecimal.
+ hexLU = "0123456789abcdef"
+
+ // hexRev is a reverse hex lookup table for lowercase hex digits.
+ // The table is efficiently decodes a hexadecimal string into bytes.
+ // Valid hexadecimal characters are indexed at their respective values. All
+ // other invalid ASCII characters are represented with '\xff'.
+ //
+ // The '\xff' character is used as invalid because no valid character has
+ // the upper 4 bits set. Meaning, an efficient validation can be performed
+ // over multiple character parsing by checking these bits remain zero.
+ hexRev = "" +
+ "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff" +
+ "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff" +
+ "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff" +
+ "\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\xff\xff\xff\xff\xff\xff" +
+ "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff" +
+ "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff" +
+ "\xff\x0a\x0b\x0c\x0d\x0e\x0f\xff\xff\xff\xff\xff\xff\xff\xff\xff" +
+ "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff" +
+ "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff" +
+ "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff" +
+ "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff" +
+ "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff" +
+ "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff" +
+ "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff" +
+ "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff" +
+ "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"
+)