Function checkVariableLikeDeclaration

test/fixtures/snapshot/typescript.js:82495–82630

(node)

        }
        // Check variable, parameter, or property declaration
        function checkVariableLikeDeclaration(node) {
            var _a;
            checkDecorators(node);
            if (!ts.isBindingElement(node)) {
                checkSourceElement(node.type);
            }
            // JSDoc `function(string, string): string` syntax results in parameters with no name
            if (!node.name) {
                return;
            }
            // For a computed property, just check the initializer and exit
            // Do not use hasDynamicName here, because that returns false for well known symbols.
            // We want to perform checkComputedPropertyName for all computed properties, including
            // well known symbols.
            if (node.name.kind === 162 /* SyntaxKind.ComputedPropertyName */) {
                checkComputedPropertyName(node.name);
                if (node.initializer) {
                    checkExpressionCached(node.initializer);
                }
            }
            if (ts.isBindingElement(node)) {
                if (ts.isObjectBindingPattern(node.parent) && node.dotDotDotToken && languageVersion < 5 /* ScriptTarget.ES2018 */) {
                    checkExternalEmitHelpers(node, 4 /* ExternalEmitHelpers.Rest */);
                }
                // check computed properties inside property names of binding elements
                if (node.propertyName && node.propertyName.kind === 162 /* SyntaxKind.ComputedPropertyName */) {
                    checkComputedPropertyName(node.propertyName);
                }
                // check private/protected variable access
                var parent = node.parent.parent;
                var parentCheckMode = node.dotDotDotToken ? 64 /* CheckMode.RestBindingElement */ : 0 /* CheckMode.Normal */;
                var parentType = getTypeForBindingElementParent(parent, parentCheckMode);
                var name = node.propertyName || node.name;
                if (parentType && !ts.isBindingPattern(name)) {
                    var exprType = getLiteralTypeFromPropertyName(name);
                    if (isTypeUsableAsPropertyName(exprType)) {
                        var nameText = getPropertyNameFromType(exprType);
                        var property = getPropertyOfType(parentType, nameText);
                        if (property) {
                            markPropertyAsReferenced(property, /*nodeForCheckWriteOnly*/ undefined, /*isSelfTypeAccess*/ false); // A destructuring is never a write-only reference.
                            checkPropertyAccessibility(node, !!parent.initializer && parent.initializer.kind === 106 /* SyntaxKind.SuperKeyword */, /*writing*/ false, parentType, property);
                        }
                    }
                }
            }
            // For a binding pattern, check contained binding elements
            if (ts.isBindingPattern(node.name)) {
                if (node.name.kind === 202 /* SyntaxKind.ArrayBindingPattern */ && languageVersion < 2 /* ScriptTarget.ES2015 */ && compilerOptions.downlevelIteration) {
                    checkExternalEmitHelpers(node, 512 /* ExternalEmitHelpers.Read */);
                }
                ts.forEach(node.name.elements, checkSourceElement);
            }
            // For a parameter declaration with an initializer, error and exit if the containing function doesn't have a body
            if (node.initializer && ts.isParameterDeclaration(node) && ts.nodeIsMissing(ts.getContainingFunction(node).body)) {
                error(node, ts.Diagnostics.A_parameter_initializer_is_only_allowed_in_a_function_or_constructor_implementation);
                return;
            }
            // For a binding pattern, validate the initializer and exit