feat: add mvp language server (#8515)

Resolves #8400

6 files changed, 65 insertions, 0 deletions

diff --git a/cli/tests/lsp/did_open_notification.json b/cli/tests/lsp/did_open_notification.json
new file mode 100644
index 000000000..04f12a7b3
--- /dev/null
+++ b/cli/tests/lsp/did_open_notification.json
@@ -0,0 +1,12 @@
+{
+  "jsonrpc": "2.0",
+  "method": "textDocument/didOpen",
+  "params": {
+    "textDocument": {
+      "uri": "file:///a/file.ts",
+      "languageId": "typescript",
+      "version": 1,
+      "text": "console.log(Deno.args);\n"
+    }
+  }
+}
diff --git a/cli/tests/lsp/exit_notification.json b/cli/tests/lsp/exit_notification.json
new file mode 100644
index 000000000..799a0d1d5
--- /dev/null
+++ b/cli/tests/lsp/exit_notification.json
@@ -0,0 +1,5 @@
+{
+  "jsonrpc": "2.0",
+  "method": "exit",
+  "params": null
+}
diff --git a/cli/tests/lsp/hover_request.json b/cli/tests/lsp/hover_request.json
new file mode 100644
index 000000000..f12bd52df
--- /dev/null
+++ b/cli/tests/lsp/hover_request.json
@@ -0,0 +1,14 @@
+{
+  "jsonrpc": "2.0",
+  "id": 2,
+  "method": "textDocument/hover",
+  "params": {
+    "textDocument": {
+      "uri": "file:///a/file.ts"
+    },
+    "position": {
+      "line": 0,
+      "character": 19
+    }
+  }
+}
diff --git a/cli/tests/lsp/initialize_request.json b/cli/tests/lsp/initialize_request.json
new file mode 100644
index 000000000..960420bfd
--- /dev/null
+++ b/cli/tests/lsp/initialize_request.json
@@ -0,0 +1,23 @@
+{
+  "jsonrpc": "2.0",
+  "id": 1,
+  "method": "initialize",
+  "params": {
+    "processId": 0,
+    "clientInfo": {
+      "name": "test-harness",
+      "version": "1.0.0"
+    },
+    "rootUri": null,
+    "capabilities": {
+      "textDocument": {
+        "synchronization": {
+          "dynamicRegistration": true,
+          "willSave": true,
+          "willSaveWaitUntil": true,
+          "didSave": true
+        }
+      }
+    }
+  }
+}
diff --git a/cli/tests/lsp/initialized_notification.json b/cli/tests/lsp/initialized_notification.json
new file mode 100644
index 000000000..972f8abc8
--- /dev/null
+++ b/cli/tests/lsp/initialized_notification.json
@@ -0,0 +1,5 @@
+{
+  "jsonrpc": "2.0",
+  "method": "initialized",
+  "params": {}
+}
diff --git a/cli/tests/lsp/shutdown_request.json b/cli/tests/lsp/shutdown_request.json
new file mode 100644
index 000000000..fd4d78460
--- /dev/null
+++ b/cli/tests/lsp/shutdown_request.json
@@ -0,0 +1,6 @@
+{
+  "jsonrpc": "2.0",
+  "id": 3,
+  "method": "shutdown",
+  "params": null
+}