Panicking on MacOS

[joelzanden]

Hi! I'm a newbie Deno and WASM developer but I have done some Rust at work. I cannot get your plugin to run on my Mac. I'm happy to help if I can. But please point me in the right direction.

When I build from source I get a warning: unused import: deno_core::plugin_api::Buf. And then, running the script in your README:

% RUST_BACKTRACE=full deno run --unstable --allow-plugin sqlite.ts
thread '<unnamed>' panicked at 'called `Result::unwrap()` on an `Err` value: Error("expected value", line: 1, column: 1)', src/lib.rs:42:69
stack backtrace:
   0:        0x10f3d34b4 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::ha0848bb2602b5d05
   1:        0x10f3ee170 - core::fmt::write::h9f3ccac2ef682b93
   2:        0x10f3d1616 - std::io::Write::write_fmt::h0a47673aab280496
   3:        0x10f3d4ce9 - std::panicking::default_hook::{{closure}}::h850c6aaf5e80c2f5
   4:        0x10f3d49ad - std::panicking::default_hook::h037801299da6e1c6
   5:        0x10f3d536b - std::panicking::rust_panic_with_hook::h76436d4cf7a368ac
   6:        0x10f3d4e95 - std::panicking::begin_panic_handler::{{closure}}::h516c76d70abf04f6
   7:        0x10f3d3928 - std::sys_common::backtrace::__rust_end_short_backtrace::h653290b4f930faed
   8:        0x10f3d4dfa - _rust_begin_unwind
   9:        0x10f3f596f - core::panicking::panic_fmt::hde9134dd19c9a74f
  10:        0x10f3f5875 - core::option::expect_none_failed::h686aad664d56bca5
  11:        0x10f0e8d52 - deno_sqlite_plugin::op_open_connection::h35779a4dc2018cf8
  12:        0x10c95b27a - <deno::ops::plugin::PluginInterface as deno_core::plugin_api::Interface>::register_op::{{closure}}::h41751fa0d0f456df
  13:        0x10c81db5b - <alloc::boxed::Box<F> as core::ops::function::Fn<A>>::call::hcae1c1f896929f2e
  14:        0x10c94be57 - deno::metrics::metrics_op::{{closure}}::h539712e871aca35e
  15:        0x10c81db5b - <alloc::boxed::Box<F> as core::ops::function::Fn<A>>::call::hcae1c1f896929f2e
  16:        0x10ca06dc9 - <extern "C" fn(A0) .> R as rusty_v8::support::CFnFrom<F>>::mapping::c_fn::hb7e720bae1d75dac
  17:        0x10d02a36f - __ZN2v88internal25FunctionCallbackArguments4CallENS0_15CallHandlerInfoE
  18:        0x10d0298d8 - __ZN2v88internal12_GLOBAL__N_119HandleApiCallHelperILb0EEENS0_11MaybeHandleINS0_6ObjectEEEPNS0_7IsolateENS0_6HandleINS0_10HeapObjectEEESA_NS8_INS0_20FunctionTemplateInfoEEENS8_IS4_EENS0_16BuiltinArgumentsE
  19:        0x10d028e90 - __ZN2v88internalL26Builtin_Impl_HandleApiCallENS0_16BuiltinArgumentsEPNS0_7IsolateE
fatal runtime error: failed to initiate panic, error 5
zsh: abort      RUST_BACKTRACE=full deno run --unstable --allow-plugin sqlite.ts 

The panick seems to be originating from src/lib.rs:42:69 wich reads:

deno_sqlite_plugin/src/lib.rs

Line 42 in 2326dff

let params: OpOpenConnectionParams = serde_json::from_slice(data).unwrap();

It seems to me the data is malformed/unexpected.