chore: cleanup codes

Author: Brooooooklyn

src/aarch64.rs

@@ -2,7 +2,7 @@ use std::arch::aarch64::{
     vceqq_u8, vdupq_n_u8, vld1q_u8_x4, vmaxvq_u8, vorrq_u8, vqtbl4q_u8, vst1q_u8,
 };
 
-use crate::{ESCAPE, HEX_BYTES, UU};
+use crate::generic::{ESCAPE, HEX_BYTES, UU};
 
 const CHUNK: usize = 64;
 // 128 bytes ahead

src/generic.rs

@@ -95,7 +95,7 @@ pub(crate) static ESCAPE: [u8; 256] = [
 ];
 
 // Pre-computed hex digit pairs for control characters
-pub(crate) struct HexPair(u8, u8);
+pub(crate) struct HexPair(pub(crate) u8, pub(crate) u8);
 
 pub(crate) static HEX_BYTES: [HexPair; 32] = [
     HexPair(b'0', b'0'),

src/lib.rs

@@ -116,62 +116,6 @@ mod x86;
 
 pub use generic::escape_generic;
 
-const BB: u8 = b'b'; // \x08
-const TT: u8 = b't'; // \x09
-const NN: u8 = b'n'; // \x0A
-const FF: u8 = b'f'; // \x0C
-const RR: u8 = b'r'; // \x0D
-pub(crate) const QU: u8 = b'"'; // \x22
-pub(crate) const BS: u8 = b'\\'; // \x5C
-pub(crate) const UU: u8 = b'u'; // \x00...\x1F except the ones above
-const __: u8 = 0;
-
-// Lookup table of escape sequences. A value of b'x' at index i means that byte
-// i is escaped as "\x" in JSON. A value of 0 means that byte i is not escaped.
-pub(crate) const ESCAPE: [u8; 256] = [
-    //   1   2   3   4   5   6   7   8   9   A   B   C   D   E   F
-    UU, UU, UU, UU, UU, UU, UU, UU, BB, TT, NN, UU, FF, RR, UU, UU, // 0
-    UU, UU, UU, UU, UU, UU, UU, UU, UU, UU, UU, UU, UU, UU, UU, UU, // 1
-    __, __, QU, __, __, __, __, __, __, __, __, __, __, __, __, __, // 2
-    __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, // 3
-    __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, // 4
-    __, __, __, __, __, __, __, __, __, __, __, __, BS, __, __, __, // 5
-    __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, // 6
-    __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, // 7
-    __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, // 8
-    __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, // 9
-    __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, // A
-    __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, // B
-    __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, // C
-    __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, // D
-    __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, // E
-    __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, // F
-];
-
-// Precomputed hex byte pairs for faster control character escaping
-pub(crate) const HEX_BYTES: [(u8, u8); 256] = {
-    let mut bytes = [(0u8, 0u8); 256];
-    let mut i = 0;
-    while i < 256 {
-        let high = (i >> 4) as u8;
-        let low = (i & 0xF) as u8;
-        bytes[i] = (
-            if high < 10 {
-                b'0' + high
-            } else {
-                b'a' + high - 10
-            },
-            if low < 10 {
-                b'0' + low
-            } else {
-                b'a' + low - 10
-            },
-        );
-        i += 1;
-    }
-    bytes
-};
-
 /// Main entry point for JSON string escaping with SIMD acceleration
 /// If the platform is supported, the SIMD path will be used. Otherwise, the generic fallback will be used.
 pub fn escape<S: AsRef<str>>(input: S) -> String {