From 62ed01a1078f499c93c70025342dd869bd277d39 Mon Sep 17 00:00:00 2001
From: veetaha <veetaha2@gmail.com>
Date: Thu, 2 Apr 2020 05:38:52 +0300
Subject: vscode: add highlighting of syntax tree

---
 editors/code/package.json                  | 15 +++++++++++++++
 editors/code/ra_syntax_tree.tmGrammar.json | 31 ++++++++++++++++++++++++++++++
 editors/code/src/commands/syntax_tree.ts   |  5 ++++-
 3 files changed, 50 insertions(+), 1 deletion(-)
 create mode 100644 editors/code/ra_syntax_tree.tmGrammar.json

(limited to 'editors/code')

diff --git a/editors/code/package.json b/editors/code/package.json
index 146b696e9..87999fe22 100644
--- a/editors/code/package.json
+++ b/editors/code/package.json
@@ -411,6 +411,21 @@
                 ]
             }
         ],
+        "languages": [
+            {
+                "id": "ra_syntax_tree",
+                "extensions": [
+                    ".rast"
+                ]
+            }
+        ],
+        "grammars": [
+            {
+                "language": "ra_syntax_tree",
+                "scopeName": "source.ra_syntax_tree",
+                "path": "ra_syntax_tree.tmGrammar.json"
+            }
+        ],
         "problemMatchers": [
             {
                 "name": "rustc",
diff --git a/editors/code/ra_syntax_tree.tmGrammar.json b/editors/code/ra_syntax_tree.tmGrammar.json
new file mode 100644
index 000000000..0d72a3e36
--- /dev/null
+++ b/editors/code/ra_syntax_tree.tmGrammar.json
@@ -0,0 +1,31 @@
+{
+    "$schema": "https://raw.githubusercontent.com/martinring/tmlanguage/master/tmlanguage.json",
+
+    "scopeName": "source.ra_syntax_tree",
+    "patterns": [
+        { "include": "#node_type" },
+        { "include": "#node_range_index" },
+        { "include": "#token_text" }
+    ],
+    "repository": {
+        "node_type": {
+            "match": "^\\s*([A-Z_]+?)@",
+            "captures": {
+                "1": {
+                    "name": "entity.name.class"
+                }
+            }
+        },
+        "node_range_index": {
+            "match": "\\d+",
+            "name": "constant.numeric"
+        },
+        "token_text": {
+            "match": "\".+\"",
+            "name": "string"
+        }
+    },
+    "fileTypes": [
+        "rast"
+    ]
+}
diff --git a/editors/code/src/commands/syntax_tree.ts b/editors/code/src/commands/syntax_tree.ts
index 996c7a716..01ab4de74 100644
--- a/editors/code/src/commands/syntax_tree.ts
+++ b/editors/code/src/commands/syntax_tree.ts
@@ -15,6 +15,9 @@ export function syntaxTree(ctx: Ctx): Cmd {
     void new AstInspector(ctx);
 
     ctx.pushCleanup(vscode.workspace.registerTextDocumentContentProvider(AST_FILE_SCHEME, tdcp));
+    ctx.pushCleanup(vscode.languages.setLanguageConfiguration("ra_syntax_tree", {
+        brackets: [["[", ")"]],
+    }));
 
     return async () => {
         const editor = vscode.window.activeTextEditor;
@@ -36,7 +39,7 @@ export function syntaxTree(ctx: Ctx): Cmd {
 }
 
 class TextDocumentContentProvider implements vscode.TextDocumentContentProvider {
-    readonly uri = vscode.Uri.parse('rust-analyzer://syntaxtree');
+    readonly uri = vscode.Uri.parse('rust-analyzer://syntaxtree/tree.rast');
     readonly eventEmitter = new vscode.EventEmitter<vscode.Uri>();
 
 
-- 
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