feat: only add expr if not present

Author: igorlfs

lua/dap-view/actions.lua

@@ -73,7 +73,7 @@ end
 M.add_expr = function()
     local expression = expr.eval_expression()
 
-    table.insert(state.watched_expressions, expression)
+    require("dap-view.watches.actions").add_watch_expr(expression)
 
     require("dap-view.watches.view").show()
 end

lua/dap-view/options/settings.lua

@@ -32,8 +32,8 @@ M.set_keymaps = function()
     vim.keymap.set("n", "i", function()
         if state.current_section == "watches" then
             vim.ui.input({ prompt = "Expression: " }, function(input)
-                if input and #input > 0 then
-                    table.insert(state.watched_expressions, input)
+                if input then
+                    require("dap-view.watches.actions").add_watch_expr(input)
 
                     require("dap-view.watches.view").show()
                 end

lua/dap-view/watches/actions.lua

@@ -0,0 +1,15 @@
+local state = require("dap-view.state")
+
+local M = {}
+
+---@param expr string
+M.add_watch_expr = function(expr)
+    -- Avoid duplicate expressions
+    local can_add = #expr > 0 and not vim.tbl_contains(state.watched_expressions, expr)
+    if can_add then
+        table.insert(state.watched_expressions, expr)
+    end
+    return can_add
+end
+
+return M