add direct integration with libuv instead of going through termopen, also implement a UI (#79)

* add direct integration with libuv instead of going through termopen, also implement a UI

* alleged free perf boosts

yo that's free cycles

1 files changed, 22 insertions, 0 deletions

diff --git a/lua/nvim-lsp-installer/ui/state.lua b/lua/nvim-lsp-installer/ui/state.lua
new file mode 100644
index 00000000..ff54c657
--- /dev/null
+++ b/lua/nvim-lsp-installer/ui/state.lua
@@ -0,0 +1,22 @@
+local M = {}
+
+function M.create_state_container(initial_state, subscriber)
+    -- we do deepcopy to make sure instances of state containers doesn't mutate the initial state
+    local state = vim.deepcopy(initial_state)
+    local has_unsubscribed = false
+
+    return function(mutate_fn)
+        mutate_fn(state)
+        if not has_unsubscribed then
+            subscriber(state)
+        end
+    end,
+        function()
+            return state
+        end,
+        function(val)
+            has_unsubscribed = val
+        end
+end
+
+return M