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83 lines
2.6 KiB
JavaScript
83 lines
2.6 KiB
JavaScript
// This file was procedurally generated from the following sources:
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// - src/function-forms/dflt-params-duplicates.case
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// - src/function-forms/syntax/cls-expr-meth.template
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/*---
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description: It is a Syntax Error if BoundNames of FormalParameters contains any duplicate elements. (class expression method)
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esid: sec-class-definitions-runtime-semantics-evaluation
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features: [default-parameters]
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flags: [generated]
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negative:
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phase: early
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type: SyntaxError
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info: |
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ClassExpression : class BindingIdentifieropt ClassTail
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1. If BindingIdentifieropt is not present, let className be undefined.
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2. Else, let className be StringValue of BindingIdentifier.
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3. Let value be the result of ClassDefinitionEvaluation of ClassTail
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with argument className.
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[...]
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14.5.14 Runtime Semantics: ClassDefinitionEvaluation
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21. For each ClassElement m in order from methods
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a. If IsStatic of m is false, then
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i. Let status be the result of performing
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PropertyDefinitionEvaluation for m with arguments proto and
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false.
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[...]
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14.3.8 Runtime Semantics: DefineMethod
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MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
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[...]
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6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
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scope, strict). If functionPrototype was passed as a parameter then pass its
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value as the functionPrototype optional argument of FunctionCreate.
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[...]
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9.2.1 [[Call]] ( thisArgument, argumentsList)
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[...]
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7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
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[...]
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9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
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1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
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[...]
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9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
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[...]
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23. Let iteratorRecord be Record {[[iterator]]:
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CreateListIterator(argumentsList), [[done]]: false}.
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24. If hasDuplicates is true, then
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[...]
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25. Else,
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b. Let formalStatus be IteratorBindingInitialization for formals with
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iteratorRecord and env as arguments.
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[...]
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14.1.2 Static Semantics: Early Errors
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StrictFormalParameters : FormalParameters
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- It is a Syntax Error if BoundNames of FormalParameters contains any
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duplicate elements.
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FormalParameters : FormalParameterList
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- It is a Syntax Error if IsSimpleParameterList of FormalParameterList is
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false and BoundNames of FormalParameterList contains any duplicate
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elements.
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---*/
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0, class {
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method(x = 0, x) {
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}
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};
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