// |reftest| error:SyntaxError 'use strict'; // This file was procedurally generated from the following sources: // - src/generators/yield-identifier-spread-strict.case // - src/generators/default/expression-named.template /*--- description: It's an early error if the AssignmentExpression is a function body with yield as an identifier in strict mode. (Named generator expression) esid: prod-GeneratorExpression features: [object-spread, generators] flags: [generated, onlyStrict] negative: phase: parse type: SyntaxError info: | 14.4 Generator Function Definitions GeneratorExpression: function * BindingIdentifier opt ( FormalParameters ) { GeneratorBody } Spread Properties PropertyDefinition[Yield]: (...) ...AssignmentExpression[In, ?Yield] ---*/ $DONOTEVALUATE(); var callCount = 0; var gen = function *g() { callCount += 1; return { ...(function() { var yield; throw new Test262Error(); }()), } }; var iter = gen(); assert.sameValue(callCount, 1);