remove not needed regex recompiles

Author: lukaszsamson

apps/language_server/lib/language_server/cli.ex

@@ -132,7 +132,7 @@ defmodule ElixirLS.LanguageServer.CLI do
     erlang_erl_path =
       beam_filename
       |> to_string
-      |> String.replace(Regex.recompile!(~r/(.+)\/ebin\/([^\s]+)\.beam$/), "\\1/src/\\2.erl")
+      |> String.replace(~r/(.+)\/ebin\/([^\s]+)\.beam$/, "\\1/src/\\2.erl")
 
     unless File.exists?(erlang_erl_path, [:raw]) do
       dir = Path.join(erlang_erl_path, "../../../..") |> Path.expand()

apps/language_server/lib/language_server/dialyzer.ex

@@ -570,7 +570,7 @@ defmodule ElixirLS.LanguageServer.Dialyzer do
 
   defp dialyzer_raw_warning_message(raw_warning) do
     message = String.trim(to_string(:dialyzer.format_warning(raw_warning)))
-    Regex.replace(Regex.recompile!(~r/^.*:\d+: /), message, "")
+    Regex.replace(~r/^.*:\d+: /, message, "")
   end
 
   # Because mtime-based stale-checking has 1-second granularity, we err on the side of

apps/language_server/lib/language_server/erlang_source_file.ex

@@ -14,13 +14,13 @@ defmodule ElixirLS.LanguageServer.ErlangSourceFile do
     beam_file
     |> to_string
     |> String.replace(
-      Regex.recompile!(~r/(.+)\/ebin\/([^\s]+)\.beam$/),
+      ~r/(.+)\/ebin\/([^\s]+)\.beam$/,
       "\\1/src/\\2.erl"
     )
   end
 
   def module_line(file) do
-    find_line_by_regex(file, Regex.recompile!(~r/^-module/))
+    find_line_by_regex(file, ~r/^-module/)
   end
 
   def function_line(file, function) do
@@ -30,7 +30,7 @@ defmodule ElixirLS.LanguageServer.ErlangSourceFile do
       |> Atom.to_string()
       |> Regex.escape()
 
-    find_line_by_regex(file, Regex.recompile!(~r/^#{escaped}\b/))
+    find_line_by_regex(file, ~r/^#{escaped}\b/)
   end
 
   defp find_line_by_regex(file, regex) do

apps/language_server/lib/language_server/providers/completion.ex

@@ -119,11 +119,11 @@ defmodule ElixirLS.LanguageServer.Providers.Completion do
 
     def_before =
       cond do
-        Regex.match?(Regex.recompile!(~r/(defdelegate|defp?)\s*#{prefix}$/), text_before_cursor) ->
+        Regex.match?(~r/(defdelegate|defp?)\s*#{prefix}$/, text_before_cursor) ->
           :def
 
         Regex.match?(
-          Regex.recompile!(~r/(defguardp?|defmacrop?)\s*#{prefix}$/),
+          ~r/(defguardp?|defmacrop?)\s*#{prefix}$/,
           text_before_cursor
         ) ->
           :defmacro
@@ -138,8 +138,8 @@ defmodule ElixirLS.LanguageServer.Providers.Completion do
       prefix: prefix,
       remote_calls?: match?({:dot, _, _}, Code.Fragment.cursor_context(prefix)),
       def_before: def_before,
-      pipe_before?: Regex.match?(Regex.recompile!(~r/\|>\s*#{prefix}$/), text_before_cursor),
-      capture_before?: Regex.match?(Regex.recompile!(~r/&#{prefix}$/), text_before_cursor),
+      pipe_before?: Regex.match?(~r/\|>\s*#{prefix}$/, text_before_cursor),
+      capture_before?: Regex.match?(~r/&#{prefix}$/, text_before_cursor),
       scope: scope,
       module: env.module
     }
@@ -302,7 +302,7 @@ defmodule ElixirLS.LanguageServer.Providers.Completion do
          %{def_before: nil, capture_before?: false, pipe_before?: false},
          _options
        ) do
-    snippet = Regex.replace(Regex.recompile!(~r/"\$\{(.*)\}\$"/U), snippet, "${\\1}")
+    snippet = Regex.replace(~r/"\$\{(.*)\}\$"/U, snippet, "${\\1}")
 
     %__MODULE__{
       label: description,
@@ -991,7 +991,7 @@ defmodule ElixirLS.LanguageServer.Providers.Completion do
   end
 
   defp get_prefix(text_before_cursor) do
-    regex = Regex.recompile!(~r/[\w0-9\._!\?\:@\->]+$/)
+    regex = ~r/[\w0-9\._!\?\:@\->]+$/
 
     case Regex.run(regex, text_before_cursor) do
       [prefix] -> prefix
@@ -1113,7 +1113,7 @@ defmodule ElixirLS.LanguageServer.Providers.Completion do
   defp use_name_only?(module_name, function_name) do
     module_name in @use_name_only or {module_name, function_name} in @use_name_only or
       String.starts_with?(function_name, "__") or
-      function_name =~ Regex.recompile!(~r/^[^a-zA-Z0-9]+$/)
+      function_name =~ ~r/^[^a-zA-Z0-9]+$/
   end
 
   defp sort_items(items) do
@@ -1126,7 +1126,7 @@ defmodule ElixirLS.LanguageServer.Providers.Completion do
           priority
         end
 
-      {priority, label =~ Regex.recompile!(~r/^[^a-zA-Z0-9]/), label}
+      {priority, label =~ ~r/^[^a-zA-Z0-9]/, label}
     end)
   end
 

apps/language_server/lib/language_server/providers/execute_command/apply_spec.ex

@@ -49,7 +49,7 @@ defmodule ElixirLS.LanguageServer.Providers.ExecuteCommand.ApplySpec do
       end
 
     cur_line = Enum.at(SourceFile.lines(cur_text), line - 1)
-    [indentation] = Regex.run(Regex.recompile!(~r/^\s*/), cur_line)
+    [indentation] = Regex.run(~r/^\s*/, cur_line)
 
     # Attempt to format to fit within the preferred line length, fallback to having it all on one
     # line if anything fails

apps/language_server/lib/language_server/providers/on_type_formatting.ex

@@ -57,11 +57,11 @@ defmodule ElixirLS.LanguageServer.Providers.OnTypeFormatting do
   end
 
   defp tokens(line) do
-    Regex.scan(Regex.recompile!(~r/(?:->)|(?:[\w\:]+)/), line) |> List.flatten()
+    Regex.scan(~r/(?:->)|(?:[\w\:]+)/, line) |> List.flatten()
   end
 
   defp indentation(line) do
-    [indentation] = Regex.run(Regex.recompile!(~r/^\s*/), line)
+    [indentation] = Regex.run(~r/^\s*/, line)
     indentation
   end