From ea14363a0e291a269abe697eb3f0b7ccd85d89c5 Mon Sep 17 00:00:00 2001
From: Nicholas Bollweg <nick.bollweg@gmail.com>
Date: Sun, 20 Oct 2019 20:06:45 -0400
Subject: [PATCH 1/3] #192: handle less-specified initialization

---
 src/server.ts | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/src/server.ts b/src/server.ts
index 2674779e..d52629b6 100755
--- a/src/server.ts
+++ b/src/server.ts
@@ -347,9 +347,12 @@ connection.onInitialize((params: InitializeParams): InitializeResult => {
     if (params.rootUri) {
         workspaceRoot = URI.parse(params.rootUri);
     }
-    workspaceFolders = params.workspaceFolders;
-    hierarchicalDocumentSymbolSupport = !!capabilities.textDocument.documentSymbol.hierarchicalDocumentSymbolSupport;
-    clientDynamicRegisterSupport = !!(capabilities.textDocument.rangeFormatting && capabilities.textDocument.rangeFormatting.dynamicRegistration);
+    workspaceFolders = params.workspaceFolders || [];
+
+    const { documentSymbol, rangeFormatting } = capabilities.textDocument || {};
+
+    hierarchicalDocumentSymbolSupport = !!(documentSymbol && documentSymbol.hierarchicalDocumentSymbolSupport);
+    clientDynamicRegisterSupport = !!(rangeFormatting && rangeFormatting.dynamicRegistration);
 
     return {
         capabilities: {

From e837fe0ba08348de1573ef10e7c62e093d78cc53 Mon Sep 17 00:00:00 2001
From: Nicholas Bollweg <nick.bollweg@gmail.com>
Date: Sun, 20 Oct 2019 20:25:55 -0400
Subject: [PATCH 2/3] appease ts3.5 fallback behavior

---
 src/server.ts | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/src/server.ts b/src/server.ts
index d52629b6..7a526268 100755
--- a/src/server.ts
+++ b/src/server.ts
@@ -349,10 +349,11 @@ connection.onInitialize((params: InitializeParams): InitializeResult => {
     }
     workspaceFolders = params.workspaceFolders || [];
 
-    const { documentSymbol, rangeFormatting } = capabilities.textDocument || {};
-
-    hierarchicalDocumentSymbolSupport = !!(documentSymbol && documentSymbol.hierarchicalDocumentSymbolSupport);
-    clientDynamicRegisterSupport = !!(rangeFormatting && rangeFormatting.dynamicRegistration);
+    if (capabilities.textDocument) {
+      const { documentSymbol, rangeFormatting } = capabilities.textDocument;
+      hierarchicalDocumentSymbolSupport = !!(documentSymbol && documentSymbol.hierarchicalDocumentSymbolSupport);
+      clientDynamicRegisterSupport = !!(rangeFormatting && rangeFormatting.dynamicRegistration);
+    }
 
     return {
         capabilities: {

From 8fc85c02c10db86a5e32608e973ec5020783921b Mon Sep 17 00:00:00 2001
From: Nicholas Bollweg <nick.bollweg@gmail.com>
Date: Sun, 20 Oct 2019 20:36:38 -0400
Subject: [PATCH 3/3] back to really long existence checks

---
 src/server.ts | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/src/server.ts b/src/server.ts
index 7a526268..6aa54e2d 100755
--- a/src/server.ts
+++ b/src/server.ts
@@ -349,11 +349,16 @@ connection.onInitialize((params: InitializeParams): InitializeResult => {
     }
     workspaceFolders = params.workspaceFolders || [];
 
-    if (capabilities.textDocument) {
-      const { documentSymbol, rangeFormatting } = capabilities.textDocument;
-      hierarchicalDocumentSymbolSupport = !!(documentSymbol && documentSymbol.hierarchicalDocumentSymbolSupport);
-      clientDynamicRegisterSupport = !!(rangeFormatting && rangeFormatting.dynamicRegistration);
-    }
+    hierarchicalDocumentSymbolSupport = !!(
+      capabilities.textDocument &&
+      capabilities.textDocument.documentSymbol &&
+      capabilities.textDocument.documentSymbol.hierarchicalDocumentSymbolSupport
+    );
+    clientDynamicRegisterSupport = !!(
+      capabilities.textDocument &&
+      capabilities.textDocument.rangeFormatting &&
+      capabilities.textDocument.rangeFormatting.dynamicRegistration
+    );
 
     return {
         capabilities: {