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luahl: global the luahl

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This commit is contained in:
Björn Linse
2020-09-12 10:29:30 +02:00
parent 05c68922d3
commit 4042975df4
9 changed files with 144 additions and 104 deletions
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72
src/nvim/api/buffer.c
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@@ -244,78 +244,6 @@ Boolean nvim_buf_detach(uint64_t channel_id,
return true;
}
static void buf_clear_luahl(buf_T *buf, bool force)
{
if (buf->b_luahl || force) {
api_free_luaref(buf->b_luahl_start);
api_free_luaref(buf->b_luahl_window);
api_free_luaref(buf->b_luahl_line);
api_free_luaref(buf->b_luahl_end);
}
buf->b_luahl_start = LUA_NOREF;
buf->b_luahl_window = LUA_NOREF;
buf->b_luahl_line = LUA_NOREF;
buf->b_luahl_end = LUA_NOREF;
}
/// Unstabilized interface for defining syntax hl in lua.
///
/// This is not yet safe for general use, lua callbacks will need to
/// be restricted, like textlock and probably other stuff.
///
/// The API on_line/nvim__put_attr is quite raw and not intended to be the
/// final shape. Ideally this should operate on chunks larger than a single
/// line to reduce interpreter overhead, and generate annotation objects
/// (bufhl/virttext) on the fly but using the same representation.
void nvim__buf_set_luahl(uint64_t channel_id, Buffer buffer,
DictionaryOf(LuaRef) opts, Error *err)
FUNC_API_LUA_ONLY
{
buf_T *buf = find_buffer_by_handle(buffer, err);
if (!buf) {
return;
}
redraw_buf_later(buf, NOT_VALID);
buf_clear_luahl(buf, false);
for (size_t i = 0; i < opts.size; i++) {
String k = opts.items[i].key;
Object *v = &opts.items[i].value;
if (strequal("on_start", k.data)) {
if (v->type != kObjectTypeLuaRef) {
api_set_error(err, kErrorTypeValidation, "callback is not a function");
goto error;
}
buf->b_luahl_start = v->data.luaref;
v->data.luaref = LUA_NOREF;
} else if (strequal("on_window", k.data)) {
if (v->type != kObjectTypeLuaRef) {
api_set_error(err, kErrorTypeValidation, "callback is not a function");
goto error;
}
buf->b_luahl_window = v->data.luaref;
v->data.luaref = LUA_NOREF;
} else if (strequal("on_line", k.data)) {
if (v->type != kObjectTypeLuaRef) {
api_set_error(err, kErrorTypeValidation, "callback is not a function");
goto error;
}
buf->b_luahl_line = v->data.luaref;
v->data.luaref = LUA_NOREF;
} else {
api_set_error(err, kErrorTypeValidation, "unexpected key: %s", k.data);
goto error;
}
}
buf->b_luahl = true;
return;
error:
buf_clear_luahl(buf, true);
buf->b_luahl = false;
}
void nvim__buf_redraw_range(Buffer buffer, Integer first, Integer last,
Error *err)
FUNC_API_LUA_ONLY