Function checkAssertClause

test/fixtures/snapshot/typescript.js:85243–85270

(declaration)

            }
        }
        function checkAssertClause(declaration) {
            var _a;
            if (declaration.assertClause) {
                var validForTypeAssertions = ts.isExclusivelyTypeOnlyImportOrExport(declaration);
                var override = ts.getResolutionModeOverrideForClause(declaration.assertClause, validForTypeAssertions ? grammarErrorOnNode : undefined);
                if (validForTypeAssertions && override) {
                    if (!ts.isNightly()) {
                        grammarErrorOnNode(declaration.assertClause, ts.Diagnostics.resolution_mode_assertions_are_unstable_Use_nightly_TypeScript_to_silence_this_error_Try_updating_with_npm_install_D_typescript_next);
                    }
                    if (ts.getEmitModuleResolutionKind(compilerOptions) !== ts.ModuleResolutionKind.Node16 && ts.getEmitModuleResolutionKind(compilerOptions) !== ts.ModuleResolutionKind.NodeNext) {
                        return grammarErrorOnNode(declaration.assertClause, ts.Diagnostics.resolution_mode_assertions_are_only_supported_when_moduleResolution_is_node16_or_nodenext);
                    }
                    return; // Other grammar checks do not apply to type-only imports with resolution mode assertions
                }
                var mode = (moduleKind === ts.ModuleKind.NodeNext) && declaration.moduleSpecifier && getUsageModeForExpression(declaration.moduleSpecifier);
                if (mode !== ts.ModuleKind.ESNext && moduleKind !== ts.ModuleKind.ESNext) {
                    return grammarErrorOnNode(declaration.assertClause, moduleKind === ts.ModuleKind.NodeNext
                        ? ts.Diagnostics.Import_assertions_are_not_allowed_on_statements_that_transpile_to_commonjs_require_calls
                        : ts.Diagnostics.Import_assertions_are_only_supported_when_the_module_option_is_set_to_esnext_or_nodenext);
                }
                if (ts.isImportDeclaration(declaration) ? (_a = declaration.importClause) === null || _a === void 0 ? void 0 : _a.isTypeOnly : declaration.isTypeOnly) {
                    return grammarErrorOnNode(declaration.assertClause, ts.Diagnostics.Import_assertions_cannot_be_used_with_type_only_imports_or_exports);
                }
                if (override) {
                    return grammarErrorOnNode(declaration.assertClause, ts.Diagnostics.resolution_mode_can_only_be_set_for_type_only_imports);
                }
            }
        }
        function checkImportDeclaration(node) {
            if (checkGrammarModuleElementContext(node, ts.isInJSFile(node) ? ts.Diagnostics.An_import_declaration_can_only_be_used_at_the_top_level_of_a_module : ts.Diagnostics.An_import_declaration_can_only_be_used_at_the_top_level_of_a_namespace_or_module)) {
                // If we hit an import declaration in an illegal context, just bail out to avoid cascading errors.