| // This file was procedurally generated from the following sources: |
| // - src/dstr-binding/ary-ptrn-empty.case |
| // - src/dstr-binding/default/cls-expr-private-gen-meth-static.template |
| /*--- |
| description: No iteration occurs for an "empty" array binding pattern (private static class expression generator method) |
| esid: sec-class-definitions-runtime-semantics-evaluation |
| features: [generators, class, class-static-methods-private, destructuring-binding] |
| flags: [generated] |
| info: | |
| ClassExpression : class BindingIdentifieropt ClassTail |
| |
| 1. If BindingIdentifieropt is not present, let className be undefined. |
| 2. Else, let className be StringValue of BindingIdentifier. |
| 3. Let value be the result of ClassDefinitionEvaluation of ClassTail |
| with argument className. |
| [...] |
| |
| 14.5.14 Runtime Semantics: ClassDefinitionEvaluation |
| |
| 21. For each ClassElement m in order from methods |
| a. If IsStatic of m is false, then |
| b. Else, |
| Let status be the result of performing PropertyDefinitionEvaluation |
| for m with arguments F and false. |
| [...] |
| |
| 14.4.13 Runtime Semantics: PropertyDefinitionEvaluation |
| |
| GeneratorMethod : |
| * PropertyName ( StrictFormalParameters ) { GeneratorBody } |
| |
| 1. Let propKey be the result of evaluating PropertyName. |
| 2. ReturnIfAbrupt(propKey). |
| 3. If the function code for this GeneratorMethod is strict mode code, |
| let strict be true. Otherwise let strict be false. |
| 4. Let scope be the running execution context's LexicalEnvironment. |
| 5. Let closure be GeneratorFunctionCreate(Method, |
| StrictFormalParameters, GeneratorBody, 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. |
| [...] |
| |
| 13.3.3.6 Runtime Semantics: IteratorBindingInitialization |
| |
| ArrayBindingPattern : [ ] |
| |
| 1. Return NormalCompletion(empty). |
| |
| ---*/ |
| var iterations = 0; |
| var iter = function*() { |
| iterations += 1; |
| }(); |
| |
| var callCount = 0; |
| var C = class { |
| static * #method([]) { |
| assert.sameValue(iterations, 0); |
| callCount = callCount + 1; |
| } |
| |
| static get method() { |
| return this.#method; |
| } |
| }; |
| |
| C.method(iter).next(); |
| assert.sameValue(callCount, 1, 'method invoked exactly once'); |