Function getTypeFromBindingElement

test/fixtures/snapshot/typescript.js:56393–56412

(element, includePatternInType, reportErrors)

        // one is present. Otherwise, if the element is itself a binding pattern, it is the type implied by the binding
        // pattern. Otherwise, it is the type any.
        function getTypeFromBindingElement(element, includePatternInType, reportErrors) {
            if (element.initializer) {
                // The type implied by a binding pattern is independent of context, so we check the initializer with no
                // contextual type or, if the element itself is a binding pattern, with the type implied by that binding
                // pattern.
                var contextualType = ts.isBindingPattern(element.name) ? getTypeFromBindingPattern(element.name, /*includePatternInType*/ true, /*reportErrors*/ false) : unknownType;
                return addOptionality(widenTypeInferredFromInitializer(element, checkDeclarationInitializer(element, 0 /* CheckMode.Normal */, contextualType)));
            }
            if (ts.isBindingPattern(element.name)) {
                return getTypeFromBindingPattern(element.name, includePatternInType, reportErrors);
            }
            if (reportErrors && !declarationBelongsToPrivateAmbientMember(element)) {
                reportImplicitAny(element, anyType);
            }
            // When we're including the pattern in the type (an indication we're obtaining a contextual type), we
            // use the non-inferrable any type. Inference will never directly infer this type, but it is possible
            // to infer a type that contains it, e.g. for a binding pattern like [foo] or { foo }. In such cases,
            // widening of the binding pattern type substitutes a regular any for the non-inferrable any.
            return includePatternInType ? nonInferrableAnyType : anyType;
        }
        // Return the type implied by an object binding pattern
        function getTypeFromObjectBindingPattern(pattern, includePatternInType, reportErrors) {
            var members = ts.createSymbolTable();