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Diffstat (limited to 'test/language/expressions/class/dstr-gen-meth-static-ary-ptrn-elem-ary-elision-init.js')
-rw-r--r-- | test/language/expressions/class/dstr-gen-meth-static-ary-ptrn-elem-ary-elision-init.js | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/test/language/expressions/class/dstr-gen-meth-static-ary-ptrn-elem-ary-elision-init.js b/test/language/expressions/class/dstr-gen-meth-static-ary-ptrn-elem-ary-elision-init.js new file mode 100644 index 000000000..6eb179be4 --- /dev/null +++ b/test/language/expressions/class/dstr-gen-meth-static-ary-ptrn-elem-ary-elision-init.js @@ -0,0 +1,95 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-ary-elision-init.case +// - src/dstr-binding/default/cls-expr-gen-meth-static.template +/*--- +description: BindingElement with array binding pattern and initializer is used (static class expression generator method) +esid: sec-class-definitions-runtime-semantics-evaluation +es6id: 14.5.16 +features: [generators, 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 + + BindingElement : BindingPatternInitializer opt + + [...] + 2. If iteratorRecord.[[done]] is true, let v be undefined. + 3. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be ? GetValue(defaultValue). + 4. Return the result of performing BindingInitialization of BindingPattern + with v and environment as the arguments. + +---*/ +var first = 0; +var second = 0; +function* g() { + first += 1; + yield; + second += 1; +}; + +var callCount = 0; +var C = class { + static *method([[,] = g()]) { + assert.sameValue(first, 1); + assert.sameValue(second, 0); + callCount = callCount + 1; + } +}; + +C.method([]).next(); +assert.sameValue(callCount, 1, 'method invoked exactly once'); |