diff options
Diffstat (limited to 'vanilla/node_modules/@jridgewell/sourcemap-codec/src/vlq.ts')
| -rw-r--r-- | vanilla/node_modules/@jridgewell/sourcemap-codec/src/vlq.ts | 55 |
1 files changed, 0 insertions, 55 deletions
diff --git a/vanilla/node_modules/@jridgewell/sourcemap-codec/src/vlq.ts b/vanilla/node_modules/@jridgewell/sourcemap-codec/src/vlq.ts deleted file mode 100644 index a42c681..0000000 --- a/vanilla/node_modules/@jridgewell/sourcemap-codec/src/vlq.ts +++ /dev/null @@ -1,55 +0,0 @@ -import type { StringReader, StringWriter } from './strings'; - -export const comma = ','.charCodeAt(0); -export const semicolon = ';'.charCodeAt(0); - -const chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'; -const intToChar = new Uint8Array(64); // 64 possible chars. -const charToInt = new Uint8Array(128); // z is 122 in ASCII - -for (let i = 0; i < chars.length; i++) { - const c = chars.charCodeAt(i); - intToChar[i] = c; - charToInt[c] = i; -} - -export function decodeInteger(reader: StringReader, relative: number): number { - let value = 0; - let shift = 0; - let integer = 0; - - do { - const c = reader.next(); - integer = charToInt[c]; - value |= (integer & 31) << shift; - shift += 5; - } while (integer & 32); - - const shouldNegate = value & 1; - value >>>= 1; - - if (shouldNegate) { - value = -0x80000000 | -value; - } - - return relative + value; -} - -export function encodeInteger(builder: StringWriter, num: number, relative: number): number { - let delta = num - relative; - - delta = delta < 0 ? (-delta << 1) | 1 : delta << 1; - do { - let clamped = delta & 0b011111; - delta >>>= 5; - if (delta > 0) clamped |= 0b100000; - builder.write(intToChar[clamped]); - } while (delta > 0); - - return num; -} - -export function hasMoreVlq(reader: StringReader, max: number) { - if (reader.pos >= max) return false; - return reader.peek() !== comma; -} |
