1 files changed, 47 insertions, 0 deletions
diff --git a/src/util/Scripting.ts b/src/util/Scripting.ts
new file mode 100644
index 000000000..804c67bc5
--- /dev/null
+++ b/src/util/Scripting.ts
@@ -0,0 +1,47 @@
+// import * as ts from "typescript"
+let ts = (window as any).ts;
+import { Opt, Field, FieldWaiting } from "../fields/Field";
+import { Document as DocumentImport } from "../fields/Document";
+import { NumberField as NumberFieldImport } from "../fields/NumberField";
+import { TextField as TextFieldImport } from "../fields/TextField";
+import { RichTextField as RichTextFieldImport } from "../fields/RichTextField";
+import { KeyStore as KeyStoreImport } from "../fields/Key";
+
+export interface ExecutableScript {
+    (): any;
+
+    compiled: boolean;
+}
+
+function ExecScript(script: string, diagnostics: Opt<any[]>): ExecutableScript {
+    const compiled = !(diagnostics && diagnostics != FieldWaiting && diagnostics.some(diag => diag.category == ts.DiagnosticCategory.Error));
+
+    let func: () => Opt<Field>;
+    if (compiled) {
+        func = function (): Opt<Field> {
+            let KeyStore = KeyStoreImport;
+            let Document = DocumentImport;
+            let NumberField = NumberFieldImport;
+            let TextField = TextFieldImport;
+            let RichTextField = RichTextFieldImport;
+            let window = undefined;
+            let document = undefined;
+            let retVal = eval(script);
+
+            return retVal;
+        };
+    } else {
+        func = () => undefined;
+    }
+
+    return Object.assign(func,
+        {
+            compiled
+        });
+}
+
+export function CompileScript(script: string): ExecutableScript {
+    let result = (window as any).ts.transpileModule(script, {})
+
+    return ExecScript(result.outputText, result.diagnostics);
+}
+\ No newline at end of file