From 3de1b980adc0197f5bb7b3e7e03ee3fb8c488e36 Mon Sep 17 00:00:00 2001
From: Brad Cornes <bradlc41@gmail.com>
Date: Mon, 15 Jun 2020 19:00:03 +0100
Subject: [PATCH] ensure diagnostics are updated when the user's tailwind
 config changes

---
 src/lsp/providers/diagnosticsProvider.ts | 19 +++++++++++++++++++
 src/lsp/server.ts                        | 12 ++++++++----
 2 files changed, 27 insertions(+), 4 deletions(-)

diff --git a/src/lsp/providers/diagnosticsProvider.ts b/src/lsp/providers/diagnosticsProvider.ts
index 036b32c..79f462e 100644
--- a/src/lsp/providers/diagnosticsProvider.ts
+++ b/src/lsp/providers/diagnosticsProvider.ts
@@ -405,3 +405,22 @@ export async function provideDiagnostics(
     diagnostics,
   })
 }
+
+export function clearDiagnostics(state: State, document: TextDocument): void {
+  state.editor.connection.sendDiagnostics({
+    uri: document.uri,
+    diagnostics: [],
+  })
+}
+
+export function clearAllDiagnostics(state: State): void {
+  state.editor.documents.all().forEach((document) => {
+    clearDiagnostics(state, document)
+  })
+}
+
+export function updateAllDiagnostics(state: State): void {
+  state.editor.documents.all().forEach((document) => {
+    provideDiagnostics(state, document)
+  })
+}
diff --git a/src/lsp/server.ts b/src/lsp/server.ts
index bef666c..8e9addf 100644
--- a/src/lsp/server.ts
+++ b/src/lsp/server.ts
@@ -26,7 +26,11 @@ import {
 import { provideHover } from './providers/hoverProvider'
 import { URI } from 'vscode-uri'
 import { getDocumentSettings } from './util/getDocumentSettings'
-import { provideDiagnostics } from './providers/diagnosticsProvider'
+import {
+  provideDiagnostics,
+  updateAllDiagnostics,
+  clearAllDiagnostics,
+} from './providers/diagnosticsProvider'
 import { createEmitter } from '../lib/emitter'
 
 let connection = createConnection(ProposedFeatures.all)
@@ -102,6 +106,7 @@ connection.onInitialize(
               state.config,
               state.plugins,
             ])
+            updateAllDiagnostics(state)
           } else {
             state = {
               enabled: false,
@@ -122,6 +127,7 @@ connection.onInitialize(
               }
               connection.sendNotification('tailwindcss/configError', [payload])
             }
+            clearAllDiagnostics(state)
             // TODO
             // connection.sendNotification('tailwindcss/configUpdated', [null])
           }
@@ -196,9 +202,7 @@ connection.onDidChangeConfiguration((change) => {
     )
   }
 
-  state.editor.documents.all().forEach((doc) => {
-    provideDiagnostics(state, doc)
-  })
+  updateAllDiagnostics(state)
 })
 
 connection.onCompletion(