I broke up with neovim....vim is my best friend now

dot_vim/plugged/ale/rplugin/python3/deoplete/sources/ale.py

@@ -0,0 +1,62 @@
+"""
+A Deoplete source for ALE completion via tsserver and LSP.
+"""
+__author__ = 'Joao Paulo, w0rp'
+
+try:
+    from deoplete.source.base import Base
+except ImportError:
+    # Mock the Base class if deoplete isn't available, as mock isn't available
+    # in the Docker image.
+    class Base(object):
+        def __init__(self, vim):
+            pass
+
+
+# Make sure this code is valid in Python 2, used for running unit tests.
+class Source(Base):
+
+    def __init__(self, vim):
+        super(Source, self).__init__(vim)
+
+        self.name = 'ale'
+        self.mark = '[L]'
+        self.rank = 1000
+        self.is_bytepos = True
+        self.min_pattern_length = 1
+        self.is_volatile = True
+        # Do not forget to update s:trigger_character_map in completion.vim in
+        # updating entries in this map.
+        self.input_patterns = {
+            '_': r'\.\w*$',
+            'rust': r'(\.|::)\w*$',
+            'typescript': r'(\.|\'|")\w*$',
+            'cpp': r'(\.|::|->)\w*$',
+            'c': r'(\.|->)\w*$',
+        }
+
+    # Returns an integer for the start position, as with omnifunc.
+    def get_complete_position(self, context):
+        return self.vim.call(
+            'ale#completion#GetCompletionPositionForDeoplete', context['input']
+        )
+
+    def gather_candidates(self, context):
+        # Stop early if ALE can't provide completion data for this buffer.
+        if not self.vim.call('ale#completion#CanProvideCompletions'):
+            return None
+
+        event = context.get('event')
+
+        if event == 'Async':
+            result = self.vim.call('ale#completion#GetCompletionResult')
+
+            return result or []
+
+        if context.get('is_refresh'):
+            self.vim.command(
+                "call ale#completion#GetCompletions('ale-callback', "
+                + "{'callback': {completions -> deoplete#auto_complete() }})"
+            )
+
+        return []