diff options
| -rw-r--r-- | src/bun.js/api/bun.zig | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/src/bun.js/api/bun.zig b/src/bun.js/api/bun.zig index 087d35250..ff8776c4b 100644 --- a/src/bun.js/api/bun.zig +++ b/src/bun.js/api/bun.zig @@ -1143,6 +1143,10 @@ pub const Class = NewClass( .rfn = @import("../test/jest.zig").Jest.call, .enumerable = false, }, + .indexOfLine = .{ + .rfn = Bun.indexOfLine, + .enumerable = false, + }, .gc = .{ .rfn = Bun.runGC, }, @@ -1301,6 +1305,63 @@ fn dump_mimalloc( return JSC.JSValue.jsUndefined().asObjectRef(); } +pub fn indexOfLine( + _: void, + globalThis: JSC.C.JSContextRef, + _: JSC.C.JSObjectRef, + _: JSC.C.JSObjectRef, + args: []const JSC.C.JSValueRef, + _: JSC.C.ExceptionRef, +) JSC.C.JSValueRef { + const arguments = bun.cast([]const JSC.JSValue, args); + if (arguments.len == 0) { + return JSC.JSValue.jsNumberFromInt32(-1).asObjectRef(); + } + + var buffer = arguments[0].asArrayBuffer(globalThis) orelse { + return JSC.JSValue.jsNumberFromInt32(-1).asObjectRef(); + }; + + var offset: usize = 0; + if (arguments.len > 1) { + offset = @intCast( + usize, + @maximum( + arguments[1].to(u32), + 0, + ), + ); + } + + const bytes = buffer.byteSlice(); + var current_offset = offset; + const end = @truncate(u32, bytes.len); + + while (current_offset < end) { + if (strings.indexOfNewlineOrNonASCII(bytes, @truncate(u32, current_offset))) |i| { + const byte = bytes[i]; + if (byte > 0x7F) { + current_offset += @maximum(strings.wtf8ByteSequenceLength(byte), 1); + continue; + } + + if (byte == '\r') { + if (i + 1 < bytes.len and bytes[i + 1] == '\n') { + return JSC.JSValue.jsNumber(i + 1).asObjectRef(); + } + } else if (byte == '\n') { + return JSC.JSValue.jsNumber(i).asObjectRef(); + } + + current_offset = i + 1; + } else { + break; + } + } + + return JSC.JSValue.jsNumberFromInt32(-1).asObjectRef(); +} + pub const Crypto = struct { const Hashers = @import("../../sha.zig"); |