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-rw-r--r--js/src/tests/test262/language/statements/function/dflt-params-arg-val-undefined.js70
1 files changed, 70 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/function/dflt-params-arg-val-undefined.js b/js/src/tests/test262/language/statements/function/dflt-params-arg-val-undefined.js
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index 0000000000..3aacdd8a81
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dflt-params-arg-val-undefined.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/function-forms/dflt-params-arg-val-undefined.case
+// - src/function-forms/default/func-decl.template
+/*---
+description: Use of initializer when argument value is `undefined` (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [default-parameters]
+flags: [generated]
+info: |
+ FunctionDeclaration :
+ function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+ [...]
+ 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+ scope, strict).
+ [...]
+
+ 9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+ [...]
+ 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+ [...]
+
+ 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+ 1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+ [...]
+
+ 9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+ [...]
+ 23. Let iteratorRecord be Record {[[iterator]]:
+ CreateListIterator(argumentsList), [[done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ b. Let formalStatus be IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+ 14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+ FormalsList : FormalsList , FormalParameter
+
+ [...]
+ 23. Let iteratorRecord be Record {[[Iterator]]:
+ CreateListIterator(argumentsList), [[Done]]: false}.
+ 24. If hasDuplicates is true, then
+ [...]
+ 25. Else,
+ a. Perform ? IteratorBindingInitialization for formals with
+ iteratorRecord and env as arguments.
+ [...]
+
+---*/
+
+var callCount = 0;
+// Stores a reference `ref` for case evaluation
+function ref(fromLiteral = 23, fromExpr = 45, fromHole = 99) {
+ assert.sameValue(fromLiteral, 23);
+ assert.sameValue(fromExpr, 45);
+ assert.sameValue(fromHole, 99);
+ callCount = callCount + 1;
+}
+
+ref(undefined, void 0);
+
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);