Switching Margo's Go To Definition to use the types package

Default (Linux).sublime-keymap

@@ -87,6 +87,12 @@
 		"args": {"mode": "hint"},
 		"context": [{ "key": "selector", "operator": "equal", "operand": "source.go" }]
 	},
+	{
+		"keys": ["ctrl+.", "ctrl+u"],
+		"command": "gs_doc",
+		"args": {"mode": "usage"},
+		"context": [{ "key": "selector", "operator": "equal", "operand": "source.go" }]
+	},
 	{
 		"keys": ["ctrl+.", "ctrl+."],
 		"command": "show_overlay",

Default (OSX).sublime-keymap

@@ -81,6 +81,12 @@
 		"args": {"mode": "hint"},
 		"context": [{ "key": "selector", "operator": "equal", "operand": "source.go" }]
 	},
+	{
+		"keys": ["super+.", "super+u"],
+		"command": "gs_doc",
+		"args": {"mode": "usage"},
+		"context": [{ "key": "selector", "operator": "equal", "operand": "source.go" }]
+	},
 	{
 		"keys": ["super+.", "super+."],
 		"command": "show_overlay",

Default (Windows).sublime-keymap

@@ -87,6 +87,12 @@
 		"args": {"mode": "hint"},
 		"context": [{ "key": "selector", "operator": "equal", "operand": "source.go" }]
 	},
+	{
+		"keys": ["ctrl+.", "ctrl+u"],
+		"command": "gs_doc",
+		"args": {"mode": "usage"},
+		"context": [{ "key": "selector", "operator": "equal", "operand": "source.go" }]
+	},
 	{
 		"keys": ["ctrl+.", "ctrl+."],
 		"command": "show_overlay",

GoSublime.sublime-commands

@@ -61,10 +61,19 @@
 		"command": "gs_doc",
 		"args": {"mode": "hint"}
 	},
+	{
+		"caption": "GoSublime: Show Usages",
+		"command": "gs_doc",
+		"args": {"mode": "usage"}
+	},
 	{
 		"caption": "GoSublime: Fmt the current file (without saving it)",
 		"command": "gs_fmt"
 	},
+	{
+		"caption": "GoSublime: Rename the current selection (gorename)",
+		"command": "gs_gorename"
+	},
 	{
 		"caption": "GoSublime: New Go File",
 		"command": "gs_new_go_file"

gosubl/mg9.py

@@ -390,13 +390,17 @@ def imports(fn, src, toggle):
 		'tabWidth': gs.setting('fmt_tab_width'),
 	})
 
-def doc(fn, src, offset, f):
+def doc(fn, src, offset, f, mode='doc'):
 	tid = gs.begin(DOMAIN, 'Fetching doc info')
 	def cb(res, err):
 		gs.end(tid)
 		f(res, err)
 
-	acall('doc', {
+	#default to doc
+	if mode not in ['usage', 'doc']:
+		mode = 'doc'
+
+	acall(mode, {
 		'fn': fn or '',
 		'src': src or '',
 		'offset': offset or 0,

gscommands.py

@@ -2,6 +2,7 @@
 from gosubl import gspatch
 from gosubl import mg9
 import datetime
+import subprocess
 import os
 import sublime
 import sublime_plugin
@@ -201,3 +202,61 @@ def run(self, edit, pos, content, added_path=''):
 				gs.set_attr(k, added_path)
 			else:
 				gs.del_attr(k)
+
+class GsGorenameCommand(sublime_plugin.TextCommand):
+	def is_enabled(self):
+		fn = self.view.file_name()
+		if fn:
+			scope_ok = fn.lower().endswith('.go')
+		else:
+			scope_ok = gs.is_go_source_view(self.view)
+
+		return scope_ok 
+
+	def run(self, edit):
+		view = self.view
+
+		# if view.is_dirty():
+		# 	sublime.error_message("{0}: GoRename failure: Unsaved file".format(DOMAIN))
+		# 	return 
+
+		region = view.sel()[0]
+
+		# If the current selection is empty, try to expand
+		# it to the word under the cursor
+		if region.empty():
+			region = view.word(region)
+
+		if region.empty(): 
+			sublime.message_dialog('Select an identifier you would like to rename and try again.')
+			return
+
+		current_selection = view.substr(region)
+		filename = view.file_name()
+
+		def on_done(new_name):
+			if new_name == current_selection:
+				return
+
+			gs.println(DOMAIN, 'Requested New Name: {0}'.format(new_name))
+
+			offset =  '{0}:#{1}'.format(filename, region.begin())
+			command = ['gorename', '-offset', offset, '-to', new_name]
+
+			gs.println(DOMAIN, 'CMD: {0}'.format(' '.join(command)))
+
+			out = ""
+			try:
+				p = gs.popen(command, stderr=subprocess.STDOUT)
+				out = p.communicate()[0]
+				if p.returncode != 0:
+					raise OSError("GoRename failed")
+
+			except Exception as e:
+				msg = gs.tbck.format_exc()
+				if out:
+					msg = '{0}\n{1}'.format(msg, gs.ustr(out))
+				gs.show_output('GsGorename', msg, replace=False, merge_domain=False)
+
+		view.window().show_input_panel("New name:", current_selection, on_done, None, None)
+

gsdoc.py

@@ -25,7 +25,7 @@ def show_output(self, s):
 
 	def run(self, _, mode=''):
 		view = self.view
-		if (not gs.is_go_source_view(view)) or (mode not in ['goto', 'hint']):
+		if (not gs.is_go_source_view(view)) or (mode not in ['goto', 'hint', 'usage']):
 			return
 
 		pt = gs.sel(view).begin()
@@ -36,19 +36,44 @@ def f(docs, err):
 			if err:
 				self.show_output('// Error: %s' % err)
 			elif docs:
-				if mode == "goto":
+				if mode == "goto" or mode == "usage":
 					fn = ''
 					flags = 0
-					if len(docs) > 0:
-						d = docs[0]
+
+					#method to open doc
+					def open(d):
 						fn = d.get('fn', '')
 						row = d.get('row', 0)
 						col = d.get('col', 0)
 						if fn:
 							gs.println('opening %s:%s:%s' % (fn, row, col))
 							gs.focus(fn, row, col)
 							return
-					self.show_output("%s: cannot find definition" % DOMAIN)
+						self.show_output("%s: cannot find definition" % DOMAIN)
+
+					if len(docs) > 1:
+						def callback(idx):
+							open(docs[idx])
+
+						def highlight(idx):
+							d = docs[idx]
+							fn = d.get('fn', '')
+							row = d.get('row', 0) + 1
+							col = d.get('col', 0) + 1
+							sublime.active_window().open_file('%s:%s:%s' % (fn, row or 0, col or 0), sublime.TRANSIENT | sublime.ENCODED_POSITION)
+
+						#list of usages
+						lines = []
+						for d in docs:
+							lines.append(d.get('fn', '') + ':' + str(d.get('row', 0) + 1) + ':' + str(d.get('col', 0) + 1))
+
+						sublime.active_window().show_quick_panel(lines, callback, on_highlight=highlight)
+						return
+
+					elif len(docs) == 1:
+						open(docs[0])
+						return
+
 				elif mode == "hint":
 					s = []
 					for d in docs:
@@ -67,7 +92,7 @@ def f(docs, err):
 					doc = '\n\n\n'.join(s).strip()
 			self.show_output(doc or "// %s: no docs found" % DOMAIN)
 
-		mg9.doc(view.file_name(), src, pt, f)
+		mg9.doc(view.file_name(), src, pt, f, mode)
 
 class GsBrowseDeclarationsCommand(sublime_plugin.WindowCommand):
 	def run(self, dir=''):