diff --git a/cli/tests/unit/ffi_test.ts b/cli/tests/unit/ffi_test.ts index c5961c6fb6..018cec6746 100644 --- a/cli/tests/unit/ffi_test.ts +++ b/cli/tests/unit/ffi_test.ts @@ -1,6 +1,6 @@ // Copyright 2018-2023 the Deno authors. All rights reserved. MIT license. -import { assertThrows } from "./test_util.ts"; +import { assertEquals, assertThrows } from "./test_util.ts"; Deno.test({ permissions: { ffi: true } }, function dlopenInvalidArguments() { const filename = "/usr/lib/libc.so.6"; @@ -77,3 +77,24 @@ Deno.test({ permissions: { ffi: false } }, function ffiPermissionDenied() { ptrView.getFloat64(); }, Deno.errors.PermissionDenied); }); + +Deno.test({ permissions: { ffi: true } }, function pointerOf() { + const buffer = new ArrayBuffer(1024); + const baseAddress = Deno.UnsafePointer.value(Deno.UnsafePointer.of(buffer)); + const uint8Address = Deno.UnsafePointer.value( + Deno.UnsafePointer.of(new Uint8Array(buffer)), + ); + assertEquals(baseAddress, uint8Address); + const float64Address = Deno.UnsafePointer.value( + Deno.UnsafePointer.of(new Float64Array(buffer)), + ); + assertEquals(baseAddress, float64Address); + const uint8AddressOffset = Deno.UnsafePointer.value( + Deno.UnsafePointer.of(new Uint8Array(buffer, 100)), + ); + assertEquals(Number(baseAddress) + 100, uint8AddressOffset); + const float64AddressOffset = Deno.UnsafePointer.value( + Deno.UnsafePointer.of(new Float64Array(buffer, 80)), + ); + assertEquals(Number(baseAddress) + 80, float64AddressOffset); +}); diff --git a/ext/ffi/repr.rs b/ext/ffi/repr.rs index f3bf013102..201df343e0 100644 --- a/ext/ffi/repr.rs +++ b/ext/ffi/repr.rs @@ -47,7 +47,7 @@ where #[op2(fast)] pub fn op_ffi_ptr_of( state: &mut OpState, - #[buffer] buf: *const u8, + #[anybuffer] buf: *const u8, ) -> Result<*mut c_void, AnyError> where FP: FfiPermissions + 'static,