Include convention pins in document_symbols (#724)

lib/solargraph/language_server/message/text_document/document_symbol.rb

@@ -6,6 +6,8 @@ class Solargraph::LanguageServer::Message::TextDocument::DocumentSymbol < Solarg
   def process
     pins = host.document_symbols params['textDocument']['uri']
     info = pins.map do |pin|
+      next nil unless pin.location&.filename
+
       result = {
         name: pin.name,
         containerName: pin.namespace,
@@ -17,7 +19,8 @@ def process
         deprecated: pin.deprecated?
       }
       result
-    end
+    end.compact
+
     set_result info
   end
 end

lib/solargraph/source_map.rb

@@ -30,6 +30,7 @@ def initialize source, pins, locals
       @pins = pins
       @locals = locals
       environ.merge Convention.for_local(self) unless filename.nil?
+      self.convention_pins = environ.pins
       @pin_class_hash = pins.to_set.classify(&:class).transform_values(&:to_a)
       @pin_select_cache = {}
     end
@@ -65,11 +66,12 @@ def environ
       @environ ||= Environ.new
     end
 
+    # all pins except Solargraph::Pin::Reference::Reference
     # @return [Array<Pin::Base>]
     def document_symbols
-      @document_symbols ||= pins.select { |pin|
+      @document_symbols ||= (pins + convention_pins).select do |pin|
         pin.path && !pin.path.empty?
-      }
+      end
     end
 
     # @param query [String]
@@ -159,6 +161,17 @@ def map source
 
     private
 
+    # @return [Array<Pin::Base>]
+    def convention_pins
+      @convention_pins || []
+    end
+
+    def convention_pins=(pins)
+      # unmemoizing the document_symbols in case it was called from any of convnetions
+      @document_symbols = nil
+      @convention_pins = pins
+    end
+
     # @param line [Integer]
     # @param character [Integer]
     # @param klasses [Array<Class>]

spec/source_map_spec.rb

@@ -20,6 +20,49 @@ def baz_qux; end
     expect(map.query_symbols("bazqux")).to eq(map.document_symbols.select{ |pin_namespace| pin_namespace.name == "baz_qux" })
   end
 
+  it 'returns all pins, except for references as document symbols' do
+    map = Solargraph::SourceMap.load_string(%(
+      class FooBar
+        require 'foo'
+        include SomeModule
+        extend SomeOtherModule
+
+        def baz_qux; end
+      end
+    ), 'test.rb')
+
+    expect(map.document_symbols.map(&:path)).to eq(['FooBar', 'FooBar#baz_qux'])
+    expect(map.document_symbols.map(&:class)).not_to include(an_instance_of(Solargraph::Pin::Reference))
+  end
+
+  it 'includes convention pins in document symbols' do
+    dummy_convention = Class.new(Solargraph::Convention::Base) do
+      def local(source_map)
+        source_map.document_symbols # call memoized method
+
+        Solargraph::Environ.new(
+          pins: [
+            Solargraph::Pin::Method.new(
+              closure: Solargraph::Pin::Namespace.new(name: 'FooBar', type: :class),
+              name: 'baz_convention',
+              scope: :instance
+            )
+          ]
+        )
+      end
+    end
+
+    Solargraph::Convention.register dummy_convention
+
+    map = Solargraph::SourceMap.load_string(%(
+      class FooBar
+        def baz_qux; end
+      end
+    ), 'test.rb')
+
+    expect(map.document_symbols.map(&:path)).to include('FooBar#baz_convention')
+  end
+
   it "locates block pins" do
     map = Solargraph::SourceMap.load_string(%(
       class Foo