Function checkClassLikeDeclaration

test/fixtures/snapshot/typescript.js:84082–84196

(node)

            registerForUnusedIdentifiersCheck(node);
        }
        function checkClassLikeDeclaration(node) {
            checkGrammarClassLikeDeclaration(node);
            checkDecorators(node);
            checkCollisionsForDeclarationName(node, node.name);
            checkTypeParameters(ts.getEffectiveTypeParameterDeclarations(node));
            checkExportsOnMergedDeclarations(node);
            var symbol = getSymbolOfNode(node);
            var type = getDeclaredTypeOfSymbol(symbol);
            var typeWithThis = getTypeWithThisArgument(type);
            var staticType = getTypeOfSymbol(symbol);
            checkTypeParameterListsIdentical(symbol);
            checkFunctionOrConstructorSymbol(symbol);
            checkClassForDuplicateDeclarations(node);
            // Only check for reserved static identifiers on non-ambient context.
            var nodeInAmbientContext = !!(node.flags & 16777216 /* NodeFlags.Ambient */);
            if (!nodeInAmbientContext) {
                checkClassForStaticPropertyNameConflicts(node);
            }
            var baseTypeNode = ts.getEffectiveBaseTypeNode(node);
            if (baseTypeNode) {
                ts.forEach(baseTypeNode.typeArguments, checkSourceElement);
                if (languageVersion < 2 /* ScriptTarget.ES2015 */) {
                    checkExternalEmitHelpers(baseTypeNode.parent, 1 /* ExternalEmitHelpers.Extends */);
                }
                // check both @extends and extends if both are specified.
                var extendsNode = ts.getClassExtendsHeritageElement(node);
                if (extendsNode && extendsNode !== baseTypeNode) {
                    checkExpression(extendsNode.expression);
                }
                var baseTypes_2 = getBaseTypes(type);
                if (baseTypes_2.length) {
                    addLazyDiagnostic(function () {
                        var baseType = baseTypes_2[0];
                        var baseConstructorType = getBaseConstructorTypeOfClass(type);
                        var staticBaseType = getApparentType(baseConstructorType);
                        checkBaseTypeAccessibility(staticBaseType, baseTypeNode);
                        checkSourceElement(baseTypeNode.expression);
                        if (ts.some(baseTypeNode.typeArguments)) {
                            ts.forEach(baseTypeNode.typeArguments, checkSourceElement);
                            for (var _i = 0, _a = getConstructorsForTypeArguments(staticBaseType, baseTypeNode.typeArguments, baseTypeNode); _i < _a.length; _i++) {
                                var constructor = _a[_i];
                                if (!checkTypeArgumentConstraints(baseTypeNode, constructor.typeParameters)) {
                                    break;
                                }
                            }
                        }
                        var baseWithThis = getTypeWithThisArgument(baseType, type.thisType);
                        if (!checkTypeAssignableTo(typeWithThis, baseWithThis, /*errorNode*/ undefined)) {
                            issueMemberSpecificError(node, typeWithThis, baseWithThis, ts.Diagnostics.Class_0_incorrectly_extends_base_class_1);
                        }
                        else {
                            // Report static side error only when instance type is assignable
                            checkTypeAssignableTo(staticType, getTypeWithoutSignatures(staticBaseType), node.name || node, ts.Diagnostics.Class_static_side_0_incorrectly_extends_base_class_static_side_1);
                        }
                        if (baseConstructorType.flags & 8650752 /* TypeFlags.TypeVariable */) {
                            if (!isMixinConstructorType(staticType)) {
                                error(node.name || node, ts.Diagnostics.A_mixin_class_must_have_a_constructor_with_a_single_rest_parameter_of_type_any);
                            }