ISS-1 sapiologie/hyperformula placeholder function and test

src/interpreter/plugin/Xlookup.ts

@@ -0,0 +1,27 @@
+/**
+ * @license
+ * Copyright (c) 2024 Handsoncode. All rights reserved.
+ */
+
+import { ProcedureAst } from '../../parser'
+import { InterpreterState } from '../InterpreterState'
+import { InterpreterValue } from '../InterpreterValue'
+import { FunctionPlugin, FunctionPluginTypecheck } from './FunctionPlugin'
+
+
+export class XlookupPlugin extends FunctionPlugin implements FunctionPluginTypecheck<XlookupPlugin> {
+    public static implementedFunctions = {
+        XLOOKUP: {
+            method: 'xlookup',
+            parameters: [
+                // TODO @selim - add arguments
+            ],
+            repeatLastArgs: 2,
+        }
+    }
+
+    public xlookup(ast: ProcedureAst, state: InterpreterState): InterpreterValue {
+        // TODO @selim - implement
+        return 2
+    }
+}

src/interpreter/plugin/index.ts

@@ -46,3 +46,4 @@ export {StatisticalPlugin} from './StatisticalPlugin'
 export {MathPlugin} from './MathPlugin'
 export {ComplexPlugin} from './ComplexPlugin'
 export {StatisticalAggregationPlugin} from './StatisticalAggregationPlugin'
+export {XlookupPlugin} from './Xlookup'

test/interpreter/function-xlookup.spec.ts

@@ -0,0 +1,6 @@
+describe('Function XLOOKUP', () => {
+    // TODO @selim - implement me
+    it('wrong number of arguments', () => {
+        expect(true).toEqual(true)
+    })
+})