// @target: es5

// This would error even though it's ambient (no runtime code generated)
declare class LibraryClass {
    accessor options: any; // ❌ Error: Properties with the 'accessor' modifier are only available when targeting ECMAScript 2015 and higher
}

// This would also error
declare module "some-library" {
    export class Parser {
        accessor config: any; // ❌ Same error
    }
}

// This should still error (runtime code needs to be generated)
class UserClass {
    accessor prop: string; // ❌ Should still error
}

// Before
if (languageVersion < ScriptTarget.ES2015 && isAutoAccessorPropertyDeclaration(node)) {
    return grammarErrorOnNode(node.name, Diagnostics.Properties_with_the_accessor_modifier_are_only_available_when_targeting_ECMAScript_2015_and_higher);
}

// After  
if (languageVersion < ScriptTarget.ES2015 && isAutoAccessorPropertyDeclaration(node) && !(node.flags & NodeFlags.Ambient)) {
    return grammarErrorOnNode(node.name, Diagnostics.Properties_with_the_accessor_modifier_are_only_available_when_targeting_ECMAScript_2015_and_higher);
}

// @target: es5

// ✅ No longer errors - ambient contexts are allowed
declare class LibraryClass {
    accessor options: any;
    static accessor defaults: any;
}

declare module "some-library" {
    export class Parser {
        accessor config: any;
    }
}

// ❌ Still correctly errors - regular classes targeting ES5 cannot use accessor
class UserClass {
    accessor prop: string; // Error: Properties with the 'accessor' modifier are only available when targeting ECMAScript 2015 and higher
}