3 files changed, 76 insertions, 4 deletions

diff --git a/src/client/util/Scripting.ts b/src/client/util/Scripting.ts
index e45f61c11..beaf5cb03 100644
--- a/src/client/util/Scripting.ts
+++ b/src/client/util/Scripting.ts
@@ -41,7 +41,7 @@ export type CompileResult = CompiledScript | CompileError;
 
 function Run(script: string | undefined, customParams: string[], diagnostics: any[], originalScript: string, options: ScriptOptions): CompileResult {
     const errors = diagnostics.some(diag => diag.category === ts.DiagnosticCategory.Error);
-    if (errors || !script) {
+    if ((options.typecheck !== false && errors) || !script) {
         return { compiled: false, errors: diagnostics };
     }
 
@@ -131,10 +131,11 @@ export interface ScriptOptions {
     addReturn?: boolean;
     params?: { [name: string]: string };
     capturedVariables?: { [name: string]: Field };
+    typecheck?: boolean;
 }
 
 export function CompileScript(script: string, options: ScriptOptions = {}): CompileResult {
-    const { requiredType = "", addReturn = false, params = {}, capturedVariables = {} } = options;
+    const { requiredType = "", addReturn = false, params = {}, capturedVariables = {}, typecheck = true } = options;
     let host = new ScriptingCompilerHost;
     let paramNames: string[] = [];
     if ("this" in params || "this" in capturedVariables) {
@@ -158,7 +159,7 @@ export function CompileScript(script: string, options: ScriptOptions = {}): Comp
         ${addReturn ? `return ${script};` : script}
     })`;
     host.writeFile("file.ts", funcScript);
-    host.writeFile('node_modules/typescript/lib/lib.d.ts', typescriptlib);
+    if (typecheck) host.writeFile('node_modules/typescript/lib/lib.d.ts', typescriptlib);
     let program = ts.createProgram(["file.ts"], {}, host);
     let testResult = program.emit();
     let outputText = host.readFile("file.js");
diff --git a/src/debug/Repl.tsx b/src/debug/Repl.tsx
new file mode 100644
index 000000000..16aef1925
--- /dev/null
+++ b/src/debug/Repl.tsx
@@ -0,0 +1,58 @@
+import * as React from 'react';
+import * as ReactDOM from 'react-dom';
+import { observer } from 'mobx-react';
+import { observable, computed } from 'mobx';
+import { CompileScript } from '../client/util/Scripting';
+
+@observer
+class Repl extends React.Component {
+    @observable text: string = "";
+
+    @observable executedCommands: { command: string, result: any }[] = [];
+
+    onChange = (e: React.ChangeEvent<HTMLInputElement>) => {
+        this.text = e.target.value;
+    }
+
+    onKeyDown = (e: React.KeyboardEvent) => {
+        if (e.key === "Enter") {
+            const script = CompileScript(this.text, { addReturn: true, typecheck: false });
+            if (!script.compiled) {
+                this.executedCommands.push({ command: this.text, result: "Compile Error" });
+            } else {
+                const result = script.run();
+                if (result.success) {
+                    this.executedCommands.push({ command: this.text, result: result.result });
+                } else {
+                    this.executedCommands.push({ command: this.text, result: result.error });
+                }
+            }
+            this.text = "";
+        }
+    }
+
+    @computed
+    get commands() {
+        return this.executedCommands.map(command => {
+            return (
+                <div style={{ marginTop: "5px" }}>
+                    <p>{command.command}</p>
+                    <p>{JSON.stringify(command.result)}</p>
+                </div>
+            );
+        });
+    }
+
+    render() {
+        return (
+            <div>
+                <div style={{ verticalAlign: "bottom" }}>
+                    {this.commands}
+                </div>
+                <input style={{ width: "100%", position: "absolute", bottom: "0px" }} value={this.text} onChange={this.onChange} onKeyDown={this.onKeyDown} />
+            </div>
+        );
+    }
+}
+
+ReactDOM.render(<Repl />, document.getElementById("root"));
\ No newline at end of file
diff --git a/src/new_fields/Doc.ts b/src/new_fields/Doc.ts
index 793a83750..0c74b8f65 100644
--- a/src/new_fields/Doc.ts
+++ b/src/new_fields/Doc.ts
@@ -62,6 +62,7 @@ export class Doc extends RefField {
         const doc = new Proxy<this>(this, {
             set: setter,
             get: getter,
+            // getPrototypeOf: (target) => Cast(target[SelfProxy].proto, Doc) || null, // TODO this might be able to replace the proto logic in getter
             has: (target, key) => key in target.__fields,
             ownKeys: target => Object.keys(target.__fields),
             getOwnPropertyDescriptor: (target, prop) => {
@@ -69,6 +70,7 @@ export class Doc extends RefField {
                     return {
                         configurable: true,//TODO Should configurable be true?
                         enumerable: true,
+                        value: target.__fields[prop]
                     };
                 }
                 return Reflect.getOwnPropertyDescriptor(target, prop);
@@ -197,6 +199,18 @@ export namespace Doc {
         return Doc.GetT(doc, "isPrototype", "boolean", true) ? doc : doc.proto!;
     }
 
+    export function allKeys(doc: Doc): string[] {
+        const results: Set<string> = new Set;
+
+        let proto: Doc | undefined = doc;
+        while (proto) {
+            Object.keys(proto).forEach(key => results.add(key));
+            proto = proto.proto;
+        }
+
+        return Array.from(results);
+    }
+
 
     export function MakeAlias(doc: Doc) {
         const proto = Object.getOwnPropertyNames(doc).indexOf("isPrototype") === -1 ? doc.proto : undefined;
@@ -246,5 +260,4 @@ export namespace Doc {
         delegate.proto = doc;
         return delegate;
     }
-    export const Prototype = Symbol("Prototype");
 }
\ No newline at end of file