Fixed "TypeError: Cannot convert undefined or null to object"

LF-3223
HL7 · Jan 16, 2025 · 0b18aa4 · 0b18aa4
1 parent 69e6305
commit 0b18aa4
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/fhirpath.js b/src/fhirpath.js
@@ -507,7 +507,8 @@ function makeParam(ctx, parentData, type, param) {
 
 function doInvoke(ctx, fnName, data, rawParams){
   var invoc =
-    Object.prototype.hasOwnProperty.call(ctx.userInvocationTable, fnName)
+    ctx.userInvocationTable
+    && Object.prototype.hasOwnProperty.call(ctx.userInvocationTable, fnName)
     && ctx.userInvocationTable?.[fnName]
     || engine.invocationTable[fnName]
     || data.length === 1 && data[0]?.invocationTable[fnName];