a function invocation followed by a predicate in a lambda is NOT a ta…

…il-call (#149)
jsonata-js · Feb 15, 2018 · 247e94d · 247e94d
1 parent ee0d8b1
commit 247e94d
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Showing 2 changed files with 7 additions and 1 deletion.
diff --git a/jsonata.js b/jsonata.js
@@ -1090,7 +1090,7 @@ var jsonata = (function() {
  // This enables tail-recursive functions to be written without growing the stack
  var tail_call_optimize = function(expr) {
  var result;
- if(expr.type === 'function') {
+ if(expr.type === 'function' && !expr.predicate) {
  var thunk = {type: 'lambda', thunk: true, arguments: [], position: expr.position};
  thunk.body = expr;
  result = thunk;

diff --git a/test/test-suite/groups/lambdas/case012.json b/test/test-suite/groups/lambdas/case012.json
@@ -0,0 +1,6 @@
+{
+ "expr": "( $median := λ($x){$sort($x)[$count($x)/2]}; $median([5,4,3,2,1,6,7,8,1]) )",
+ "dataset": null,
+ "bindings": {},
+ "result": 4
+}