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fix: language server did_change diff calculation

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CJ van den Berg 2024-05-08 23:56:00 +02:00
parent 5ca96aa328
commit 6ece4c14b5
1 changed files with 2 additions and 13 deletions
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15
src/Project.zig
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@ -298,25 +298,16 @@ pub fn did_change(self: *Self, file_path: []const u8, version: usize, root_dst_a
try dizzy.PrimitiveSliceDiffer(u8).diff(self.a, &dizzy_edits, src.items, dst.items, scratch.items); try dizzy.PrimitiveSliceDiffer(u8).diff(self.a, &dizzy_edits, src.items, dst.items, scratch.items);
var lines_dst: usize = 0; var lines_dst: usize = 0;
var pos_src: usize = 0;
var pos_dst: usize = 0;
var last_offset: usize = 0; var last_offset: usize = 0;
var edits_count: usize = 0; var edits_count: usize = 0;
for (dizzy_edits.items) |dizzy_edit| { for (dizzy_edits.items) |dizzy_edit| {
switch (dizzy_edit.kind) { switch (dizzy_edit.kind) {
.equal => { .equal => {
const dist = dizzy_edit.range.end - dizzy_edit.range.start;
pos_src += dist;
pos_dst += dist;
scan_char(src.items[dizzy_edit.range.start..dizzy_edit.range.end], &lines_dst, '\n', &last_offset); scan_char(src.items[dizzy_edit.range.start..dizzy_edit.range.end], &lines_dst, '\n', &last_offset);
}, },
.insert => { .insert => {
const dist = dizzy_edit.range.end - dizzy_edit.range.start;
pos_src += 0;
pos_dst += dist;
const line_start_dst: usize = lines_dst; const line_start_dst: usize = lines_dst;
scan_char(dst.items[dizzy_edit.range.start..dizzy_edit.range.end], &lines_dst, '\n', null);
try cbor.writeValue(writer, .{ try cbor.writeValue(writer, .{
.range = .{ .range = .{
.start = .{ .line = line_start_dst, .character = last_offset }, .start = .{ .line = line_start_dst, .character = last_offset },
@ -325,15 +316,12 @@ pub fn did_change(self: *Self, file_path: []const u8, version: usize, root_dst_a
.text = dst.items[dizzy_edit.range.start..dizzy_edit.range.end], .text = dst.items[dizzy_edit.range.start..dizzy_edit.range.end],
}); });
edits_count += 1; edits_count += 1;
scan_char(dst.items[dizzy_edit.range.start..dizzy_edit.range.end], &lines_dst, '\n', &last_offset);
}, },
.delete => { .delete => {
const dist = dizzy_edit.range.end - dizzy_edit.range.start;
pos_src += dist;
pos_dst += 0;
var line_end_dst: usize = lines_dst; var line_end_dst: usize = lines_dst;
var offset_end_dst: usize = last_offset; var offset_end_dst: usize = last_offset;
scan_char(src.items[dizzy_edit.range.start..dizzy_edit.range.end], &line_end_dst, '\n', &offset_end_dst); scan_char(src.items[dizzy_edit.range.start..dizzy_edit.range.end], &line_end_dst, '\n', &offset_end_dst);
if (lines_dst == line_end_dst) offset_end_dst = last_offset + dist;
try cbor.writeValue(writer, .{ try cbor.writeValue(writer, .{
.range = .{ .range = .{
.start = .{ .line = lines_dst, .character = last_offset }, .start = .{ .line = lines_dst, .character = last_offset },
@ -361,6 +349,7 @@ pub fn did_change(self: *Self, file_path: []const u8, version: usize, root_dst_a
fn scan_char(chars: []const u8, lines: *usize, char: u8, last_offset: ?*usize) void { fn scan_char(chars: []const u8, lines: *usize, char: u8, last_offset: ?*usize) void {
var pos = chars; var pos = chars;
if (last_offset) |off| off.* += pos.len;
while (pos.len > 0) { while (pos.len > 0) {
if (pos[0] == char) { if (pos[0] == char) {
if (last_offset) |off| off.* = pos.len - 1; if (last_offset) |off| off.* = pos.len - 1;