WIP: Send code to REPL

package.json

@@ -22,7 +22,8 @@
         "Snippets"
     ],
     "activationEvents": [
-        "onCommand:language-julia.openPackageDirectory"
+        "onCommand:language-julia.openPackageDirectory",
+        "onCommand:language-julia.executeJuliaCodeInREPL"
     ],
     "main": "./out/src/extension",
     "contributes": {
@@ -60,8 +61,17 @@
             {
                 "command": "language-julia.openPackageDirectory",
                 "title": "julia: Open Package Directory in New Window"
+            },
+            {
+                "command": "language-julia.executeJuliaCodeInREPL",
+                "title": "julia: Execute Code"
             }
-        ]
+        ],
+        "keybindings": [{
+            "command": "language-julia.executeJuliaCodeInREPL",
+            "key": "ctrl+Enter",
+            "when": "editorTextFocus"
+        }] 
     },
     "scripts": {
         "vscode:prepublish": "node ./node_modules/vscode/bin/compile",

scripts/server.jl

@@ -0,0 +1,34 @@
+module _vscodeserver
+import JSON
+
+@async begin
+    server = listen("\\\\.\\pipe\\vscode-language-julia-server")
+    while true
+        sock = accept(server)
+        @async while isopen(sock)
+            msg = ""
+            process_message = false
+            try
+                msg = JSON.parse(sock)
+                process_message = true
+            catch e
+                if isa(e, EOFError)
+                else
+                    rethrow()
+                end
+            end
+
+            if process_message
+                if msg["command"] == "run"
+                    command_string = msg["body"]
+                    command_eval = parse(command_string)
+                    eval(Main, command_eval)
+                else
+                    error("Unknown command")
+                end                               
+            end
+        end
+    end
+end
+
+end

src/extension.ts

@@ -4,6 +4,7 @@
 import * as vscode from 'vscode';
 import * as fs from 'fs'
 import * as path from 'path'
+import * as net from 'net'
 
 let diagnosticCollection: vscode.DiagnosticCollection;
 
@@ -19,14 +20,50 @@ export function activate(context: vscode.ExtensionContext) {
     // Now provide the implementation of the command with  registerCommand
     // The commandId parameter must match the command field in package.json
     let disposable = vscode.commands.registerCommand('language-julia.openPackageDirectory', openPackageDirectoryCommand);
-
     context.subscriptions.push(disposable);
+
+    let disposable2 = vscode.commands.registerCommand('language-julia.executeJuliaCodeInREPL', executeJuliaCodeInREPL);
+    context.subscriptions.push(disposable2);
 }
 
 // this method is called when your extension is deactivated
 export function deactivate() {
 }
 
+function executeJuliaCodeInREPL() {
+    var editor = vscode.window.activeTextEditor;
+    if(!editor) {
+        return;
+    }
+
+    var selection = editor.selection;
+
+    var text = selection.isEmpty ? editor.document.lineAt(selection.start.line).text : editor.document.getText(selection);
+
+    // If no text was selected, try to move the cursor to the end of the next line
+    if (selection.isEmpty) {
+        for (var line = selection.start.line+1; line < editor.document.lineCount; line++) {
+            if (!editor.document.lineAt(line).isEmptyOrWhitespace) {
+                var newPos = selection.active.with(line, editor.document.lineAt(line).range.end.character);
+                var newSel = new vscode.Selection(newPos, newPos);
+                editor.selection = newSel;
+                break;
+            }
+        }
+    }
+
+    var namedPipe = '\\\\.\\pipe\\vscode-language-julia-server';
+    var client = net.connect(namedPipe,
+        () => {
+            var msg = {
+                "command": "run",
+                "body": text
+            };
+            client.write(JSON.stringify(msg));
+        });
+
+}
+
 // This method implements the language-julia.openPackageDirectory command
 function openPackageDirectoryCommand() {
     const optionsVersion: vscode.QuickPickOptions = {