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// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.// deno-lint-ignore-file// Only for testing types. Invoke with `deno cache`
const remote = Deno.dlopen(  "dummy_lib.so",  {    method1: { parameters: ["usize", "usize"], result: "void", callback: true },    method2: { parameters: [], result: "void" },    method3: { parameters: ["usize"], result: "void" },    method4: { parameters: ["isize"], result: "void" },    method5: { parameters: ["u8"], result: "void" },    method6: { parameters: ["u16"], result: "void" },    method7: { parameters: ["u32"], result: "void" },    method8: { parameters: ["u64"], result: "void" },    method9: { parameters: ["i8"], result: "void" },    method10: { parameters: ["i16"], result: "void" },    method11: { parameters: ["i32"], result: "void" },    method12: { parameters: ["i64"], result: "void" },    method13: { parameters: ["f32"], result: "void" },    method14: { parameters: ["f64"], result: "void" },    method15: { parameters: ["pointer"], result: "void" },    method16: { parameters: [], result: "usize" },    method17: { parameters: [], result: "usize", nonblocking: true },    method18: { parameters: [], result: "pointer" },    method19: { parameters: [], result: "pointer", nonblocking: true },    method20: {      parameters: ["pointer"],      result: "void",    },    method21: {      parameters: [        "pointer",      ],      result: "void",    },    method22: {      parameters: ["pointer"],      result: "void",    },    method23: {      parameters: ["buffer"],      result: "void",    },    method24: {      parameters: ["bool"],      result: "bool",    },    static1: { type: "usize" },    static2: { type: "pointer" },    static3: { type: "usize" },    static4: { type: "isize" },    static5: { type: "u8" },    static6: { type: "u16" },    static7: { type: "u32" },    static8: { type: "u64" },    static9: { type: "i8" },    static10: { type: "i16" },    static11: { type: "i32" },    static12: { type: "i64" },    static13: { type: "f32" },    static14: { type: "f64" },    static15: { type: "bool" },  } as const,);
Deno.dlopen(  "dummy_lib_2.so",  // @ts-expect-error: Returning a function pointer  // is declared using "pointer" or "function" + UnsafeFnPointer  {    wrong_method1: {      parameters: [],      result: {        function: {          parameters: [],          result: "void",        },      },    },  } as const,);
// @ts-expect-error: Invalid argumentremote.symbols.method1(0);// @ts-expect-error: Invalid return type<number> remote.symbols.method1(0, 0);<void> remote.symbols.method1(0n, 0n);
// @ts-expect-error: Expected 0 arguments, but got 1.remote.symbols.method2(null);remote.symbols.method2();
// @ts-expect-error: Invalid argumentremote.symbols.method3(null);remote.symbols.method3(0n);
// @ts-expect-error: Invalid argumentremote.symbols.method4(null);remote.symbols.method4(0n);
// @ts-expect-error: Invalid argumentremote.symbols.method5(null);remote.symbols.method5(0);
// @ts-expect-error: Invalid argumentremote.symbols.method6(null);remote.symbols.method6(0);
// @ts-expect-error: Invalid argumentremote.symbols.method7(null);remote.symbols.method7(0);
// @ts-expect-error: Invalid argumentremote.symbols.method8(null);remote.symbols.method8(0n);
// @ts-expect-error: Invalid argumentremote.symbols.method9(null);remote.symbols.method9(0);
// @ts-expect-error: Invalid argumentremote.symbols.method10(null);remote.symbols.method10(0);
// @ts-expect-error: Invalid argumentremote.symbols.method11(null);remote.symbols.method11(0);
// @ts-expect-error: Invalid argumentremote.symbols.method12(null);remote.symbols.method12(0n);
// @ts-expect-error: Invalid argumentremote.symbols.method13(null);remote.symbols.method13(0);
// @ts-expect-error: Invalid argumentremote.symbols.method14(null);remote.symbols.method14(0);
// @ts-expect-error: Invalid argumentremote.symbols.method15("foo");// @ts-expect-error: Invalid argumentremote.symbols.method15(new Uint16Array(1));remote.symbols.method15(0n);
const result = remote.symbols.method16();// @ts-expect-error: Invalid argumentlet r_0: string = result;let r_1: Deno.PointerValue = result;
const result2 = remote.symbols.method17();// @ts-expect-error: Invalid argumentresult2.then((_0: string) => {});result2.then((_1: Deno.PointerValue) => {});
const result3 = remote.symbols.method18();// @ts-expect-error: Invalid argumentlet r3_0: Deno.BufferSource = result3;let r3_1: Deno.UnsafePointer = result3;
const result4 = remote.symbols.method19();// @ts-expect-error: Invalid argumentresult4.then((_0: Deno.BufferSource) => {});result4.then((_1: Deno.UnsafePointer) => {});
const fnptr = new Deno.UnsafeFnPointer(  0n,  {    parameters: ["u32", "pointer"],    result: "void",  } as const,);// @ts-expect-error: Invalid argumentfnptr.call(null, null);fnptr.call(0, null);
const unsafe_callback_wrong1 = new Deno.UnsafeCallback(  {    parameters: ["i8"],    result: "void",  } as const,  // @ts-expect-error: i8 is not a pointer  (_: bigint) => {},);const unsafe_callback_wrong2 = new Deno.UnsafeCallback(  {    parameters: ["pointer"],    result: "u64",  } as const,  // @ts-expect-error: must return a number or bigint  (_: Deno.UnsafePointer) => {},);const unsafe_callback_wrong3 = new Deno.UnsafeCallback(  {    parameters: [],    result: "void",  } as const,  // @ts-expect-error: no parameters  (_: Deno.UnsafePointer) => {},);const unsafe_callback_wrong4 = new Deno.UnsafeCallback(  {    parameters: ["u64"],    result: "void",  } as const,  // @ts-expect-error: Callback's 64bit parameters are either number or bigint  (_: number) => {},);const unsafe_callback_right1 = new Deno.UnsafeCallback(  {    parameters: ["u8", "u32", "pointer"],    result: "void",  } as const,  (_1: number, _2: number, _3: Deno.PointerValue) => {},);const unsafe_callback_right2 = new Deno.UnsafeCallback(  {    parameters: [],    result: "u8",  } as const,  () => 3,);const unsafe_callback_right3 = new Deno.UnsafeCallback(  {    parameters: [],    result: "function",  } as const,  // Callbacks can return other callbacks' pointers, if really wanted.  () => unsafe_callback_right2.pointer,);const unsafe_callback_right4 = new Deno.UnsafeCallback(  {    parameters: ["u8", "u32", "pointer"],    result: "u8",  } as const,  (_1: number, _2: number, _3: Deno.PointerValue) => 3,);const unsafe_callback_right5 = new Deno.UnsafeCallback(  {    parameters: ["u8", "i32", "pointer"],    result: "void",  } as const,  (_1: number, _2: number, _3: Deno.PointerValue) => {},);
// @ts-expect-error: Must pass callbackremote.symbols.method20();// nullptr is okayremote.symbols.method20(null);// @ts-expect-error: Callback cannot be passed directlyremote.symbols.method20(unsafe_callback_right2);remote.symbols.method20(unsafe_callback_right1.pointer);
remote.symbols.method23(new Uint8Array(1));remote.symbols.method23(new Uint32Array(1));remote.symbols.method23(new Uint8Array(1));
// @ts-expect-error: Cannot pass pointer values as buffer.remote.symbols.method23(0);// @ts-expect-error: Cannot pass pointer values as buffer.remote.symbols.method23(0n);remote.symbols.method23(null);
// @ts-expect-error: Cannot pass number as bool.remote.symbols.method24(0);// @ts-expect-error: Cannot pass number as bool.remote.symbols.method24(1);// @ts-expect-error: Cannot pass null as bool.remote.symbols.method24(null);remote.symbols.method24(true);remote.symbols.method24(false);// @ts-expect-error: Cannot assert return type as a number.<number> remote.symbols.method24(true);// @ts-expect-error: Cannot assert return type truthiness.let r24_0: true = remote.symbols.method24(true);// @ts-expect-error: Cannot assert return type as a number.let r42_1: number = remote.symbols.method24(true);<boolean> remote.symbols.method24(Math.random() > 0.5);
// @ts-expect-error: Invalid member typeconst static1_wrong: null = remote.symbols.static1;const static1_right: Deno.PointerValue = remote.symbols.static1;// @ts-expect-error: Invalid member typeconst static2_wrong: null = remote.symbols.static2;const static2_right: Deno.UnsafePointer = remote.symbols.static2;// @ts-expect-error: Invalid member typeconst static3_wrong: null = remote.symbols.static3;const static3_right: Deno.PointerValue = remote.symbols.static3;// @ts-expect-error: Invalid member typeconst static4_wrong: null = remote.symbols.static4;const static4_right: Deno.PointerValue = remote.symbols.static4;// @ts-expect-error: Invalid member typeconst static5_wrong: null = remote.symbols.static5;const static5_right: number = remote.symbols.static5;// @ts-expect-error: Invalid member typeconst static6_wrong: null = remote.symbols.static6;const static6_right: number = remote.symbols.static6;// @ts-expect-error: Invalid member typeconst static7_wrong: null = remote.symbols.static7;const static7_right: number = remote.symbols.static7;// @ts-expect-error: Invalid member typeconst static8_wrong: null = remote.symbols.static8;const static8_right: Deno.PointerValue = remote.symbols.static8;// @ts-expect-error: Invalid member typeconst static9_wrong: null = remote.symbols.static9;const static9_right: number = remote.symbols.static9;// @ts-expect-error: Invalid member typeconst static10_wrong: null = remote.symbols.static10;const static10_right: number = remote.symbols.static10;// @ts-expect-error: Invalid member typeconst static11_wrong: null = remote.symbols.static11;const static11_right: number = remote.symbols.static11;// @ts-expect-error: Invalid member typeconst static12_wrong: null = remote.symbols.static12;const static12_right: Deno.PointerValue = remote.symbols.static12;// @ts-expect-error: Invalid member typeconst static13_wrong: null = remote.symbols.static13;const static13_right: number = remote.symbols.static13;// @ts-expect-error: Invalid member typeconst static14_wrong: null = remote.symbols.static14;const static14_right: number = remote.symbols.static14;// @ts-expect-error: Invalid member typeconst static15_wrong: number = remote.symbols.static15;const static15_right: boolean = remote.symbols.static15;
// Adapted from https://stackoverflow.com/a/53808212/10873797type Equal<T, U> = (<G>() => G extends T ? 1 : 2) extends  (<G>() => G extends U ? 1 : 2) ? true  : false;
type AssertEqual<  Expected extends $,  Got extends $$,  $ = [Equal<Got, Expected>] extends [true] ? Expected    : ([Expected] extends [Got] ? never : Got),  $$ = [Equal<Expected, Got>] extends [true] ? Got    : ([Got] extends [Expected] ? never : Got),> = never;
type AssertNotEqual<  Expected extends $,  Got,  $ = [Equal<Expected, Got>] extends [true] ? never : Expected,> = never;
type __Tests__ = [  empty: AssertEqual<    { symbols: Record<never, never>; close(): void },    Deno.DynamicLibrary<Record<never, never>>  >,  basic: AssertEqual<    { symbols: { add: (n1: number, n2: number) => number }; close(): void },    Deno.DynamicLibrary<{ add: { parameters: ["i32", "u8"]; result: "i32" } }>  >,  higher_order_params: AssertEqual<    {      symbols: {        pushBuf: (          buf: BufferSource | null,          ptr: Deno.PointerValue | null,          func: Deno.PointerValue | null,        ) => void;      };      close(): void;    },    Deno.DynamicLibrary<      {        pushBuf: {          parameters: ["buffer", "pointer", "function"];          result: "void";        };      }    >  >,  higher_order_returns: AssertEqual<    {      symbols: {        pushBuf: (          buf: BufferSource | null,          ptr: Deno.PointerValue | null,          func: Deno.PointerValue | null,        ) => Deno.PointerValue;      };      close(): void;    },    Deno.DynamicLibrary<      {        pushBuf: {          parameters: ["buffer", "pointer", "function"];          result: "pointer";        };      }    >  >,  non_exact_params: AssertEqual<    {      symbols: {        foo: (          ...args: (Deno.PointerValue | null)[]        ) => Deno.PointerValue;      };      close(): void;    },    Deno.DynamicLibrary<      { foo: { parameters: ("i32" | "pointer")[]; result: "u64" } }    >  >,  non_exact_params_empty: AssertEqual<    {      symbols: {        foo: () => number;      };      close(): void;    },    Deno.DynamicLibrary<      { foo: { parameters: []; result: "i32" } }    >  >,  non_exact_params_empty: AssertNotEqual<    {      symbols: {        foo: (a: number) => number;      };      close(): void;    },    Deno.DynamicLibrary<      { foo: { parameters: []; result: "i32" } }    >  >,];