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Code Issues Packages 1 Wiki Activity

refactor(ext/ffi): use concrete error types (#26170)

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Leo Kettmeir 2024-10-14 15:05:49 -07:00 committed by GitHub
parent 8dbe77dd29
commit ee7d450143
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GPG key ID: B5690EEEBB952194
10 changed files with 444 additions and 184 deletions
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2
Cargo.lock generated
View file

@ -1587,6 +1587,8 @@ dependencies = [
"serde",
"serde-value",
"serde_json",
"thiserror",
"tokio",
"winapi",
]

2
ext/ffi/Cargo.toml
View file

@ -24,6 +24,8 @@ log.workspace = true
serde.workspace = true
serde-value = "0.7"
serde_json = "1.0"
thiserror.workspace = true
tokio.workspace = true
[target.'cfg(windows)'.dependencies]
winapi = { workspace = true, features = ["errhandlingapi", "minwindef", "ntdef", "winbase", "winnt"] }

54
ext/ffi/call.rs
View file

@ -7,9 +7,6 @@ use crate::symbol::NativeType;
use crate::symbol::Symbol;
use crate::FfiPermissions;
use crate::ForeignFunction;
use deno_core::anyhow::anyhow;
use deno_core::error::type_error;
use deno_core::error::AnyError;
use deno_core::op2;
use deno_core::serde_json::Value;
use deno_core::serde_v8::ExternalPointer;
@ -24,6 +21,20 @@ use std::ffi::c_void;
use std::future::Future;
use std::rc::Rc;
#[derive(Debug, thiserror::Error)]
pub enum CallError {
#[error(transparent)]
IR(#[from] IRError),
#[error("Nonblocking FFI call failed: {0}")]
NonblockingCallFailure(#[source] tokio::task::JoinError),
#[error("Invalid FFI symbol name: '{0}'")]
InvalidSymbol(String),
#[error(transparent)]
Permission(deno_core::error::AnyError),
#[error(transparent)]
Callback(#[from] super::CallbackError),
}
// SAFETY: Makes an FFI call
unsafe fn ffi_call_rtype_struct(
cif: &libffi::middle::Cif,
@ -45,7 +56,7 @@ pub(crate) fn ffi_call_sync<'scope>(
args: v8::FunctionCallbackArguments,
symbol: &Symbol,
out_buffer: Option<OutBuffer>,
) -> Result<NativeValue, AnyError>
) -> Result<NativeValue, CallError>
where
'scope: 'scope,
{
@ -201,7 +212,7 @@ fn ffi_call(
parameter_types: &[NativeType],
result_type: NativeType,
out_buffer: Option<OutBuffer>,
) -> Result<FfiValue, AnyError> {
) -> FfiValue {
let call_args: Vec<Arg> = call_args
.iter()
.enumerate()
@ -214,7 +225,7 @@ fn ffi_call(
// SAFETY: types in the `Cif` match the actual calling convention and
// types of symbol.
unsafe {
Ok(match result_type {
match result_type {
NativeType::Void => {
cif.call::<()>(fun_ptr, &call_args);
FfiValue::Value(Value::from(()))
@ -267,7 +278,7 @@ fn ffi_call(
ffi_call_rtype_struct(cif, &fun_ptr, call_args, out_buffer.unwrap().0);
FfiValue::Value(Value::Null)
}
})
}
}
}
@ -280,14 +291,16 @@ pub fn op_ffi_call_ptr_nonblocking<FP>(
#[serde] def: ForeignFunction,
parameters: v8::Local<v8::Array>,
out_buffer: Option<v8::Local<v8::TypedArray>>,
) -> Result<impl Future<Output = Result<FfiValue, AnyError>>, AnyError>
) -> Result<impl Future<Output = Result<FfiValue, CallError>>, CallError>
where
FP: FfiPermissions + 'static,
{
{
let mut state = state.borrow_mut();
let permissions = state.borrow_mut::<FP>();
permissions.check_partial_no_path()?;
permissions
.check_partial_no_path()
.map_err(CallError::Permission)?;
};
let symbol = PtrSymbol::new(pointer, &def)?;
@ -309,7 +322,7 @@ where
Ok(async move {
let result = join_handle
.await
.map_err(|err| anyhow!("Nonblocking FFI call failed: {}", err))??;
.map_err(CallError::NonblockingCallFailure)?;
// SAFETY: Same return type declared to libffi; trust user to have it right beyond that.
Ok(result)
})
@ -325,16 +338,17 @@ pub fn op_ffi_call_nonblocking(
#[string] symbol: String,
parameters: v8::Local<v8::Array>,
out_buffer: Option<v8::Local<v8::TypedArray>>,
) -> Result<impl Future<Output = Result<FfiValue, AnyError>>, AnyError> {
) -> Result<impl Future<Output = Result<FfiValue, CallError>>, CallError> {
let symbol = {
let state = state.borrow();
let resource = state.resource_table.get::<DynamicLibraryResource>(rid)?;
let resource = state
.resource_table
.get::<DynamicLibraryResource>(rid)
.map_err(CallError::Permission)?;
let symbols = &resource.symbols;
*symbols
.get(&symbol)
.ok_or_else(|| {
type_error(format!("Invalid FFI symbol name: '{symbol}'"))
})?
.ok_or_else(|| CallError::InvalidSymbol(symbol))?
.clone()
};
@ -362,7 +376,7 @@ pub fn op_ffi_call_nonblocking(
Ok(async move {
let result = join_handle
.await
.map_err(|err| anyhow!("Nonblocking FFI call failed: {}", err))??;
.map_err(CallError::NonblockingCallFailure)?;
// SAFETY: Same return type declared to libffi; trust user to have it right beyond that.
Ok(result)
})
@ -377,14 +391,16 @@ pub fn op_ffi_call_ptr<FP>(
#[serde] def: ForeignFunction,
parameters: v8::Local<v8::Array>,
out_buffer: Option<v8::Local<v8::TypedArray>>,
) -> Result<FfiValue, AnyError>
) -> Result<FfiValue, CallError>
where
FP: FfiPermissions + 'static,
{
{
let mut state = state.borrow_mut();
let permissions = state.borrow_mut::<FP>();
permissions.check_partial_no_path()?;
permissions
.check_partial_no_path()
.map_err(CallError::Permission)?;
};
let symbol = PtrSymbol::new(pointer, &def)?;
@ -399,7 +415,7 @@ where
&def.parameters,
def.result.clone(),
out_buffer_ptr,
)?;
);
// SAFETY: Same return type declared to libffi; trust user to have it right beyond that.
Ok(result)
}

51
ext/ffi/callback.rs
View file

@ -3,7 +3,6 @@
use crate::symbol::NativeType;
use crate::FfiPermissions;
use crate::ForeignFunction;
use deno_core::error::AnyError;
use deno_core::op2;
use deno_core::v8;
use deno_core::v8::TryCatch;
@ -34,6 +33,16 @@ thread_local! {
static LOCAL_THREAD_ID: RefCell<u32> = const { RefCell::new(0) };
}
#[derive(Debug, thiserror::Error)]
pub enum CallbackError {
#[error(transparent)]
Resource(deno_core::error::AnyError),
#[error(transparent)]
Permission(deno_core::error::AnyError),
#[error(transparent)]
Other(deno_core::error::AnyError),
}
#[derive(Clone)]
pub struct PtrSymbol {
pub cif: libffi::middle::Cif,
@ -44,7 +53,7 @@ impl PtrSymbol {
pub fn new(
fn_ptr: *mut c_void,
def: &ForeignFunction,
) -> Result<Self, AnyError> {
) -> Result<Self, CallbackError> {
let ptr = libffi::middle::CodePtr::from_ptr(fn_ptr as _);
let cif = libffi::middle::Cif::new(
def
@ -52,8 +61,13 @@ impl PtrSymbol {
.clone()
.into_iter()
.map(libffi::middle::Type::try_from)
.collect::<Result<Vec<_>, _>>()?,
def.result.clone().try_into()?,
.collect::<Result<Vec<_>, _>>()
.map_err(CallbackError::Other)?,
def
.result
.clone()
.try_into()
.map_err(CallbackError::Other)?,
);
Ok(Self { cif, ptr })
@ -522,10 +536,12 @@ unsafe fn do_ffi_callback(
pub fn op_ffi_unsafe_callback_ref(
state: Rc<RefCell<OpState>>,
#[smi] rid: ResourceId,
) -> Result<impl Future<Output = Result<(), AnyError>>, AnyError> {
) -> Result<impl Future<Output = ()>, CallbackError> {
let state = state.borrow();
let callback_resource =
state.resource_table.get::<UnsafeCallbackResource>(rid)?;
let callback_resource = state
.resource_table
.get::<UnsafeCallbackResource>(rid)
.map_err(CallbackError::Resource)?;
Ok(async move {
let info: &mut CallbackInfo =
@ -536,7 +552,6 @@ pub fn op_ffi_unsafe_callback_ref(
.into_future()
.or_cancel(callback_resource.cancel.clone())
.await;
Ok(())
})
}
@ -552,12 +567,14 @@ pub fn op_ffi_unsafe_callback_create<FP, 'scope>(
scope: &mut v8::HandleScope<'scope>,
#[serde] args: RegisterCallbackArgs,
cb: v8::Local<v8::Function>,
) -> Result<v8::Local<'scope, v8::Value>, AnyError>
) -> Result<v8::Local<'scope, v8::Value>, CallbackError>
where
FP: FfiPermissions + 'static,
{
let permissions = state.borrow_mut::<FP>();
permissions.check_partial_no_path()?;
permissions
.check_partial_no_path()
.map_err(CallbackError::Permission)?;
let thread_id: u32 = LOCAL_THREAD_ID.with(|s| {
let value = *s.borrow();
@ -593,8 +610,10 @@ where
.parameters
.into_iter()
.map(libffi::middle::Type::try_from)
.collect::<Result<Vec<_>, _>>()?,
libffi::middle::Type::try_from(args.result)?,
.collect::<Result<Vec<_>, _>>()
.map_err(CallbackError::Other)?,
libffi::middle::Type::try_from(args.result)
.map_err(CallbackError::Other)?,
);
// SAFETY: CallbackInfo is leaked, is not null and stays valid as long as the callback exists.
@ -624,14 +643,16 @@ pub fn op_ffi_unsafe_callback_close(
state: &mut OpState,
scope: &mut v8::HandleScope,
#[smi] rid: ResourceId,
) -> Result<(), AnyError> {
) -> Result<(), CallbackError> {
// SAFETY: This drops the closure and the callback info associated with it.
// Any retained function pointers to the closure become dangling pointers.
// It is up to the user to know that it is safe to call the `close()` on the
// UnsafeCallback instance.
unsafe {
let callback_resource =
state.resource_table.take::<UnsafeCallbackResource>(rid)?;
let callback_resource = state
.resource_table
.take::<UnsafeCallbackResource>(rid)
.map_err(CallbackError::Resource)?;
let info = Box::from_raw(callback_resource.info);
let _ = v8::Global::from_raw(scope, info.callback);
let _ = v8::Global::from_raw(scope, info.context);

48
ext/ffi/dlfcn.rs
View file

@ -6,8 +6,6 @@ use crate::symbol::Symbol;
use crate::turbocall;
use crate::turbocall::Turbocall;
use crate::FfiPermissions;
use deno_core::error::generic_error;
use deno_core::error::AnyError;
use deno_core::op2;
use deno_core::v8;
use deno_core::GarbageCollected;
@ -21,6 +19,22 @@ use std::collections::HashMap;
use std::ffi::c_void;
use std::rc::Rc;
#[derive(Debug, thiserror::Error)]
pub enum DlfcnError {
#[error("Failed to register symbol {symbol}: {error}")]
RegisterSymbol {
symbol: String,
#[source]
error: dlopen2::Error,
},
#[error(transparent)]
Dlopen(#[from] dlopen2::Error),
#[error(transparent)]
Permission(deno_core::error::AnyError),
#[error(transparent)]
Other(deno_core::error::AnyError),
}
pub struct DynamicLibraryResource {
lib: Library,
pub symbols: HashMap<String, Box<Symbol>>,
@ -37,7 +51,7 @@ impl Resource for DynamicLibraryResource {
}
impl DynamicLibraryResource {
pub fn get_static(&self, symbol: String) -> Result<*mut c_void, AnyError> {
pub fn get_static(&self, symbol: String) -> Result<*mut c_void, DlfcnError> {
// By default, Err returned by this function does not tell
// which symbol wasn't exported. So we'll modify the error
// message to include the name of symbol.
@ -45,9 +59,7 @@ impl DynamicLibraryResource {
// SAFETY: The obtained T symbol is the size of a pointer.
match unsafe { self.lib.symbol::<*mut c_void>(&symbol) } {
Ok(value) => Ok(Ok(value)),
Err(err) => Err(generic_error(format!(
"Failed to register symbol {symbol}: {err}"
))),
Err(error) => Err(DlfcnError::RegisterSymbol { symbol, error }),
}?
}
}
@ -116,12 +128,14 @@ pub fn op_ffi_load<'scope, FP>(
scope: &mut v8::HandleScope<'scope>,
state: &mut OpState,
#[serde] args: FfiLoadArgs,
) -> Result<v8::Local<'scope, v8::Value>, AnyError>
) -> Result<v8::Local<'scope, v8::Value>, DlfcnError>
where
FP: FfiPermissions + 'static,
{
let permissions = state.borrow_mut::<FP>();
let path = permissions.check_partial_with_path(&args.path)?;
let path = permissions
.check_partial_with_path(&args.path)
.map_err(DlfcnError::Permission)?;
let lib = Library::open(&path).map_err(|e| {
dlopen2::Error::OpeningLibraryError(std::io::Error::new(
@ -152,15 +166,16 @@ where
// SAFETY: The obtained T symbol is the size of a pointer.
match unsafe { resource.lib.symbol::<*const c_void>(symbol) } {
Ok(value) => Ok(value),
Err(err) => if foreign_fn.optional {
Err(error) => if foreign_fn.optional {
let null: v8::Local<v8::Value> = v8::null(scope).into();
let func_key = v8::String::new(scope, &symbol_key).unwrap();
obj.set(scope, func_key.into(), null);
break 'register_symbol;
} else {
Err(generic_error(format!(
"Failed to register symbol {symbol}: {err}"
)))
Err(DlfcnError::RegisterSymbol {
symbol: symbol.to_owned(),
error,
})
},
}?;
@ -171,8 +186,13 @@ where
.clone()
.into_iter()
.map(libffi::middle::Type::try_from)
.collect::<Result<Vec<_>, _>>()?,
foreign_fn.result.clone().try_into()?,
.collect::<Result<Vec<_>, _>>()
.map_err(DlfcnError::Other)?,
foreign_fn
.result
.clone()
.try_into()
.map_err(DlfcnError::Other)?,
);
let func_key = v8::String::new(scope, &symbol_key).unwrap();

142
ext/ffi/ir.rs
View file

@ -1,13 +1,55 @@
// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
use crate::symbol::NativeType;
use deno_core::error::type_error;
use deno_core::error::AnyError;
use deno_core::v8;
use libffi::middle::Arg;
use std::ffi::c_void;
use std::ptr;
#[derive(Debug, thiserror::Error)]
pub enum IRError {
#[error("Invalid FFI u8 type, expected boolean")]
InvalidU8ExpectedBoolean,
#[error("Invalid FFI u8 type, expected unsigned integer")]
InvalidU8ExpectedUnsignedInteger,
#[error("Invalid FFI i8 type, expected integer")]
InvalidI8,
#[error("Invalid FFI u16 type, expected unsigned integer")]
InvalidU16,
#[error("Invalid FFI i16 type, expected integer")]
InvalidI16,
#[error("Invalid FFI u32 type, expected unsigned integer")]
InvalidU32,
#[error("Invalid FFI i32 type, expected integer")]
InvalidI32,
#[error("Invalid FFI u64 type, expected unsigned integer")]
InvalidU64,
#[error("Invalid FFI i64 type, expected integer")]
InvalidI64,
#[error("Invalid FFI usize type, expected unsigned integer")]
InvalidUsize,
#[error("Invalid FFI isize type, expected integer")]
InvalidIsize,
#[error("Invalid FFI f32 type, expected number")]
InvalidF32,
#[error("Invalid FFI f64 type, expected number")]
InvalidF64,
#[error("Invalid FFI pointer type, expected null, or External")]
InvalidPointerType,
#[error(
"Invalid FFI buffer type, expected null, ArrayBuffer, or ArrayBufferView"
)]
InvalidBufferType,
#[error("Invalid FFI ArrayBufferView, expected data in the buffer")]
InvalidArrayBufferView,
#[error("Invalid FFI ArrayBuffer, expected data in buffer")]
InvalidArrayBuffer,
#[error("Invalid FFI struct type, expected ArrayBuffer, or ArrayBufferView")]
InvalidStructType,
#[error("Invalid FFI function type, expected null, or External")]
InvalidFunctionType,
}
pub struct OutBuffer(pub *mut u8);
// SAFETY: OutBuffer is allocated by us in 00_ffi.js and is guaranteed to be
@ -126,9 +168,9 @@ unsafe impl Send for NativeValue {}
#[inline]
pub fn ffi_parse_bool_arg(
arg: v8::Local<v8::Value>,
) -> Result<NativeValue, AnyError> {
) -> Result<NativeValue, IRError> {
let bool_value = v8::Local::<v8::Boolean>::try_from(arg)
.map_err(|_| type_error("Invalid FFI u8 type, expected boolean"))?
.map_err(|_| IRError::InvalidU8ExpectedBoolean)?
.is_true();
Ok(NativeValue { bool_value })
}
@ -136,9 +178,9 @@ pub fn ffi_parse_bool_arg(
#[inline]
pub fn ffi_parse_u8_arg(
arg: v8::Local<v8::Value>,
) -> Result<NativeValue, AnyError> {
) -> Result<NativeValue, IRError> {
let u8_value = v8::Local::<v8::Uint32>::try_from(arg)
.map_err(|_| type_error("Invalid FFI u8 type, expected unsigned integer"))?
.map_err(|_| IRError::InvalidU8ExpectedUnsignedInteger)?
.value() as u8;
Ok(NativeValue { u8_value })
}
@ -146,9 +188,9 @@ pub fn ffi_parse_u8_arg(
#[inline]
pub fn ffi_parse_i8_arg(
arg: v8::Local<v8::Value>,
) -> Result<NativeValue, AnyError> {
) -> Result<NativeValue, IRError> {
let i8_value = v8::Local::<v8::Int32>::try_from(arg)
.map_err(|_| type_error("Invalid FFI i8 type, expected integer"))?
.map_err(|_| IRError::InvalidI8)?
.value() as i8;
Ok(NativeValue { i8_value })
}
@ -156,9 +198,9 @@ pub fn ffi_parse_i8_arg(
#[inline]
pub fn ffi_parse_u16_arg(
arg: v8::Local<v8::Value>,
) -> Result<NativeValue, AnyError> {
) -> Result<NativeValue, IRError> {
let u16_value = v8::Local::<v8::Uint32>::try_from(arg)
.map_err(|_| type_error("Invalid FFI u16 type, expected unsigned integer"))?
.map_err(|_| IRError::InvalidU16)?
.value() as u16;
Ok(NativeValue { u16_value })
}
@ -166,9 +208,9 @@ pub fn ffi_parse_u16_arg(
#[inline]
pub fn ffi_parse_i16_arg(
arg: v8::Local<v8::Value>,
) -> Result<NativeValue, AnyError> {
) -> Result<NativeValue, IRError> {
let i16_value = v8::Local::<v8::Int32>::try_from(arg)
.map_err(|_| type_error("Invalid FFI i16 type, expected integer"))?
.map_err(|_| IRError::InvalidI16)?
.value() as i16;
Ok(NativeValue { i16_value })
}
@ -176,9 +218,9 @@ pub fn ffi_parse_i16_arg(
#[inline]
pub fn ffi_parse_u32_arg(
arg: v8::Local<v8::Value>,
) -> Result<NativeValue, AnyError> {
) -> Result<NativeValue, IRError> {
let u32_value = v8::Local::<v8::Uint32>::try_from(arg)
.map_err(|_| type_error("Invalid FFI u32 type, expected unsigned integer"))?
.map_err(|_| IRError::InvalidU32)?
.value();
Ok(NativeValue { u32_value })
}
@ -186,9 +228,9 @@ pub fn ffi_parse_u32_arg(
#[inline]
pub fn ffi_parse_i32_arg(
arg: v8::Local<v8::Value>,
) -> Result<NativeValue, AnyError> {
) -> Result<NativeValue, IRError> {
let i32_value = v8::Local::<v8::Int32>::try_from(arg)
.map_err(|_| type_error("Invalid FFI i32 type, expected integer"))?
.map_err(|_| IRError::InvalidI32)?
.value();
Ok(NativeValue { i32_value })
}
@ -197,7 +239,7 @@ pub fn ffi_parse_i32_arg(
pub fn ffi_parse_u64_arg(
scope: &mut v8::HandleScope,
arg: v8::Local<v8::Value>,
) -> Result<NativeValue, AnyError> {
) -> Result<NativeValue, IRError> {
// Order of checking:
// 1. BigInt: Uncommon and not supported by Fast API, so optimise slow call for this case.
// 2. Number: Common, supported by Fast API, so let that be the optimal case.
@ -207,9 +249,7 @@ pub fn ffi_parse_u64_arg(
} else if let Ok(value) = v8::Local::<v8::Number>::try_from(arg) {
value.integer_value(scope).unwrap() as u64
} else {
return Err(type_error(
"Invalid FFI u64 type, expected unsigned integer",
));
return Err(IRError::InvalidU64);
};
Ok(NativeValue { u64_value })
}
@ -218,7 +258,7 @@ pub fn ffi_parse_u64_arg(
pub fn ffi_parse_i64_arg(
scope: &mut v8::HandleScope,
arg: v8::Local<v8::Value>,
) -> Result<NativeValue, AnyError> {
) -> Result<NativeValue, IRError> {
// Order of checking:
// 1. BigInt: Uncommon and not supported by Fast API, so optimise slow call for this case.
// 2. Number: Common, supported by Fast API, so let that be the optimal case.
@ -228,7 +268,7 @@ pub fn ffi_parse_i64_arg(
} else if let Ok(value) = v8::Local::<v8::Number>::try_from(arg) {
value.integer_value(scope).unwrap()
} else {
return Err(type_error("Invalid FFI i64 type, expected integer"));
return Err(IRError::InvalidI64);
};
Ok(NativeValue { i64_value })
}
@ -237,7 +277,7 @@ pub fn ffi_parse_i64_arg(
pub fn ffi_parse_usize_arg(
scope: &mut v8::HandleScope,
arg: v8::Local<v8::Value>,
) -> Result<NativeValue, AnyError> {
) -> Result<NativeValue, IRError> {
// Order of checking:
// 1. BigInt: Uncommon and not supported by Fast API, so optimise slow call for this case.
// 2. Number: Common, supported by Fast API, so let that be the optimal case.
@ -247,7 +287,7 @@ pub fn ffi_parse_usize_arg(
} else if let Ok(value) = v8::Local::<v8::Number>::try_from(arg) {
value.integer_value(scope).unwrap() as usize
} else {
return Err(type_error("Invalid FFI usize type, expected integer"));
return Err(IRError::InvalidUsize);
};
Ok(NativeValue { usize_value })
}
@ -256,7 +296,7 @@ pub fn ffi_parse_usize_arg(
pub fn ffi_parse_isize_arg(
scope: &mut v8::HandleScope,
arg: v8::Local<v8::Value>,
) -> Result<NativeValue, AnyError> {
) -> Result<NativeValue, IRError> {
// Order of checking:
// 1. BigInt: Uncommon and not supported by Fast API, so optimise slow call for this case.
// 2. Number: Common, supported by Fast API, so let that be the optimal case.
@ -266,7 +306,7 @@ pub fn ffi_parse_isize_arg(
} else if let Ok(value) = v8::Local::<v8::Number>::try_from(arg) {
value.integer_value(scope).unwrap() as isize
} else {
return Err(type_error("Invalid FFI isize type, expected integer"));
return Err(IRError::InvalidIsize);
};
Ok(NativeValue { isize_value })
}
@ -274,9 +314,9 @@ pub fn ffi_parse_isize_arg(
#[inline]
pub fn ffi_parse_f32_arg(
arg: v8::Local<v8::Value>,
) -> Result<NativeValue, AnyError> {
) -> Result<NativeValue, IRError> {
let f32_value = v8::Local::<v8::Number>::try_from(arg)
.map_err(|_| type_error("Invalid FFI f32 type, expected number"))?
.map_err(|_| IRError::InvalidF32)?
.value() as f32;
Ok(NativeValue { f32_value })
}
@ -284,9 +324,9 @@ pub fn ffi_parse_f32_arg(
#[inline]
pub fn ffi_parse_f64_arg(
arg: v8::Local<v8::Value>,
) -> Result<NativeValue, AnyError> {
) -> Result<NativeValue, IRError> {
let f64_value = v8::Local::<v8::Number>::try_from(arg)
.map_err(|_| type_error("Invalid FFI f64 type, expected number"))?
.map_err(|_| IRError::InvalidF64)?
.value();
Ok(NativeValue { f64_value })
}
@ -295,15 +335,13 @@ pub fn ffi_parse_f64_arg(
pub fn ffi_parse_pointer_arg(
_scope: &mut v8::HandleScope,
arg: v8::Local<v8::Value>,
) -> Result<NativeValue, AnyError> {
) -> Result<NativeValue, IRError> {
let pointer = if let Ok(value) = v8::Local::<v8::External>::try_from(arg) {
value.value()
} else if arg.is_null() {
ptr::null_mut()
} else {
return Err(type_error(
"Invalid FFI pointer type, expected null, or External",
));
return Err(IRError::InvalidPointerType);
};
Ok(NativeValue { pointer })
}
@ -312,7 +350,7 @@ pub fn ffi_parse_pointer_arg(
pub fn ffi_parse_buffer_arg(
scope: &mut v8::HandleScope,
arg: v8::Local<v8::Value>,
) -> Result<NativeValue, AnyError> {
) -> Result<NativeValue, IRError> {
// Order of checking:
// 1. ArrayBuffer: Fairly common and not supported by Fast API, optimise this case.
// 2. ArrayBufferView: Common and supported by Fast API
@ -328,9 +366,7 @@ pub fn ffi_parse_buffer_arg(
let byte_offset = value.byte_offset();
let pointer = value
.buffer(scope)
.ok_or_else(|| {
type_error("Invalid FFI ArrayBufferView, expected data in the buffer")
})?
.ok_or(IRError::InvalidArrayBufferView)?
.data();
if let Some(non_null) = pointer {
// SAFETY: Pointer is non-null, and V8 guarantees that the byte_offset
@ -342,9 +378,7 @@ pub fn ffi_parse_buffer_arg(
} else if arg.is_null() {
ptr::null_mut()
} else {
return Err(type_error(
"Invalid FFI buffer type, expected null, ArrayBuffer, or ArrayBufferView",
));
return Err(IRError::InvalidBufferType);
};
Ok(NativeValue { pointer })
}
@ -353,7 +387,7 @@ pub fn ffi_parse_buffer_arg(
pub fn ffi_parse_struct_arg(
scope: &mut v8::HandleScope,
arg: v8::Local<v8::Value>,
) -> Result<NativeValue, AnyError> {
) -> Result<NativeValue, IRError> {
// Order of checking:
// 1. ArrayBuffer: Fairly common and not supported by Fast API, optimise this case.
// 2. ArrayBufferView: Common and supported by Fast API
@ -362,31 +396,23 @@ pub fn ffi_parse_struct_arg(
if let Some(non_null) = value.data() {
non_null.as_ptr()
} else {
return Err(type_error(
"Invalid FFI ArrayBuffer, expected data in buffer",
));
return Err(IRError::InvalidArrayBuffer);
}
} else if let Ok(value) = v8::Local::<v8::ArrayBufferView>::try_from(arg) {
let byte_offset = value.byte_offset();
let pointer = value
.buffer(scope)
.ok_or_else(|| {
type_error("Invalid FFI ArrayBufferView, expected data in the buffer")
})?
.ok_or(IRError::InvalidArrayBufferView)?
.data();
if let Some(non_null) = pointer {
// SAFETY: Pointer is non-null, and V8 guarantees that the byte_offset
// is within the buffer backing store.
unsafe { non_null.as_ptr().add(byte_offset) }
} else {
return Err(type_error(
"Invalid FFI ArrayBufferView, expected data in buffer",
));
return Err(IRError::InvalidArrayBufferView);
}
} else {
return Err(type_error(
"Invalid FFI struct type, expected ArrayBuffer, or ArrayBufferView",
));
return Err(IRError::InvalidStructType);
};
Ok(NativeValue { pointer })
}
@ -395,15 +421,13 @@ pub fn ffi_parse_struct_arg(
pub fn ffi_parse_function_arg(
_scope: &mut v8::HandleScope,
arg: v8::Local<v8::Value>,
) -> Result<NativeValue, AnyError> {
) -> Result<NativeValue, IRError> {
let pointer = if let Ok(value) = v8::Local::<v8::External>::try_from(arg) {
value.value()
} else if arg.is_null() {
ptr::null_mut()
} else {
return Err(type_error(
"Invalid FFI function type, expected null, or External",
));
return Err(IRError::InvalidFunctionType);
};
Ok(NativeValue { pointer })
}
@ -412,7 +436,7 @@ pub fn ffi_parse_args<'scope>(
scope: &mut v8::HandleScope<'scope>,
args: v8::Local<v8::Array>,
parameter_types: &[NativeType],
) -> Result<Vec<NativeValue>, AnyError>
) -> Result<Vec<NativeValue>, IRError>
where
'scope: 'scope,
{

7
ext/ffi/lib.rs
View file

@ -29,6 +29,13 @@ use repr::*;
use symbol::NativeType;
use symbol::Symbol;
pub use call::CallError;
pub use callback::CallbackError;
pub use dlfcn::DlfcnError;
pub use ir::IRError;
pub use r#static::StaticError;
pub use repr::ReprError;
#[cfg(not(target_pointer_width = "64"))]
compile_error!("platform not supported");

211
ext/ffi/repr.rs
View file

@ -1,9 +1,6 @@
// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
use crate::FfiPermissions;
use deno_core::error::range_error;
use deno_core::error::type_error;
use deno_core::error::AnyError;
use deno_core::op2;
use deno_core::v8;
use deno_core::OpState;
@ -12,16 +9,58 @@ use std::ffi::c_void;
use std::ffi::CStr;
use std::ptr;
#[derive(Debug, thiserror::Error)]
pub enum ReprError {
#[error("Invalid pointer to offset, pointer is null")]
InvalidOffset,
#[error("Invalid ArrayBuffer pointer, pointer is null")]
InvalidArrayBuffer,
#[error("Destination length is smaller than source length")]
DestinationLengthTooShort,
#[error("Invalid CString pointer, pointer is null")]
InvalidCString,
#[error("Invalid CString pointer, string exceeds max length")]
CStringTooLong,
#[error("Invalid bool pointer, pointer is null")]
InvalidBool,
#[error("Invalid u8 pointer, pointer is null")]
InvalidU8,
#[error("Invalid i8 pointer, pointer is null")]
InvalidI8,
#[error("Invalid u16 pointer, pointer is null")]
InvalidU16,
#[error("Invalid i16 pointer, pointer is null")]
InvalidI16,
#[error("Invalid u32 pointer, pointer is null")]
InvalidU32,
#[error("Invalid i32 pointer, pointer is null")]
InvalidI32,
#[error("Invalid u64 pointer, pointer is null")]
InvalidU64,
#[error("Invalid i64 pointer, pointer is null")]
InvalidI64,
#[error("Invalid f32 pointer, pointer is null")]
InvalidF32,
#[error("Invalid f64 pointer, pointer is null")]
InvalidF64,
#[error("Invalid pointer pointer, pointer is null")]
InvalidPointer,
#[error(transparent)]
Permission(deno_core::error::AnyError),
}
#[op2(fast)]
pub fn op_ffi_ptr_create<FP>(
state: &mut OpState,
#[bigint] ptr_number: usize,
) -> Result<*mut c_void, AnyError>
) -> Result<*mut c_void, ReprError>
where
FP: FfiPermissions + 'static,
{
let permissions = state.borrow_mut::<FP>();
permissions.check_partial_no_path()?;
permissions
.check_partial_no_path()
.map_err(ReprError::Permission)?;
Ok(ptr_number as *mut c_void)
}
@ -31,12 +70,14 @@ pub fn op_ffi_ptr_equals<FP>(
state: &mut OpState,
a: *const c_void,
b: *const c_void,
) -> Result<bool, AnyError>
) -> Result<bool, ReprError>
where
FP: FfiPermissions + 'static,
{
let permissions = state.borrow_mut::<FP>();
permissions.check_partial_no_path()?;
permissions
.check_partial_no_path()
.map_err(ReprError::Permission)?;
Ok(a == b)
}
@ -45,12 +86,14 @@ where
pub fn op_ffi_ptr_of<FP>(
state: &mut OpState,
#[anybuffer] buf: *const u8,
) -> Result<*mut c_void, AnyError>
) -> Result<*mut c_void, ReprError>
where
FP: FfiPermissions + 'static,
{
let permissions = state.borrow_mut::<FP>();
permissions.check_partial_no_path()?;
permissions
.check_partial_no_path()
.map_err(ReprError::Permission)?;
Ok(buf as *mut c_void)
}
@ -59,12 +102,14 @@ where
pub fn op_ffi_ptr_of_exact<FP>(
state: &mut OpState,
buf: v8::Local<v8::ArrayBufferView>,
) -> Result<*mut c_void, AnyError>
) -> Result<*mut c_void, ReprError>
where
FP: FfiPermissions + 'static,
{
let permissions = state.borrow_mut::<FP>();
permissions.check_partial_no_path()?;
permissions
.check_partial_no_path()
.map_err(ReprError::Permission)?;
let Some(buf) = buf.get_backing_store() else {
return Ok(0 as _);
@ -80,15 +125,17 @@ pub fn op_ffi_ptr_offset<FP>(
state: &mut OpState,
ptr: *mut c_void,
#[number] offset: isize,
) -> Result<*mut c_void, AnyError>
) -> Result<*mut c_void, ReprError>
where
FP: FfiPermissions + 'static,
{
let permissions = state.borrow_mut::<FP>();
permissions.check_partial_no_path()?;
permissions
.check_partial_no_path()
.map_err(ReprError::Permission)?;
if ptr.is_null() {
return Err(type_error("Invalid pointer to offset, pointer is null"));
return Err(ReprError::InvalidOffset);
}
// TODO(mmastrac): Create a RawPointer that can safely do pointer math.
@ -110,12 +157,14 @@ unsafe extern "C" fn noop_deleter_callback(
pub fn op_ffi_ptr_value<FP>(
state: &mut OpState,
ptr: *mut c_void,
) -> Result<usize, AnyError>
) -> Result<usize, ReprError>
where
FP: FfiPermissions + 'static,
{
let permissions = state.borrow_mut::<FP>();
permissions.check_partial_no_path()?;
permissions
.check_partial_no_path()
.map_err(ReprError::Permission)?;
Ok(ptr as usize)
}
@ -127,15 +176,17 @@ pub fn op_ffi_get_buf<FP, 'scope>(
ptr: *mut c_void,
#[number] offset: isize,
#[number] len: usize,
) -> Result<v8::Local<'scope, v8::ArrayBuffer>, AnyError>
) -> Result<v8::Local<'scope, v8::ArrayBuffer>, ReprError>
where
FP: FfiPermissions + 'static,
{
let permissions = state.borrow_mut::<FP>();
permissions.check_partial_no_path()?;
permissions
.check_partial_no_path()
.map_err(ReprError::Permission)?;
if ptr.is_null() {
return Err(type_error("Invalid ArrayBuffer pointer, pointer is null"));
return Err(ReprError::InvalidArrayBuffer);
}
// SAFETY: Trust the user to have provided a real pointer, offset, and a valid matching size to it. Since this is a foreign pointer, we should not do any deletion.
@ -144,7 +195,7 @@ where
ptr.offset(offset),
len,
noop_deleter_callback,
std::ptr::null_mut(),
ptr::null_mut(),
)
}
.make_shared();
@ -159,19 +210,19 @@ pub fn op_ffi_buf_copy_into<FP>(
#[number] offset: isize,
#[anybuffer] dst: &mut [u8],
#[number] len: usize,
) -> Result<(), AnyError>
) -> Result<(), ReprError>
where
FP: FfiPermissions + 'static,
{
let permissions = state.borrow_mut::<FP>();
permissions.check_partial_no_path()?;
permissions
.check_partial_no_path()
.map_err(ReprError::Permission)?;
if src.is_null() {
Err(type_error("Invalid ArrayBuffer pointer, pointer is null"))
Err(ReprError::InvalidArrayBuffer)
} else if dst.len() < len {
Err(range_error(
"Destination length is smaller than source length",
))
Err(ReprError::DestinationLengthTooShort)
} else {
let src = src as *const c_void;
@ -190,24 +241,24 @@ pub fn op_ffi_cstr_read<FP, 'scope>(
state: &mut OpState,
ptr: *mut c_void,
#[number] offset: isize,
) -> Result<v8::Local<'scope, v8::String>, AnyError>
) -> Result<v8::Local<'scope, v8::String>, ReprError>
where
FP: FfiPermissions + 'static,
{
let permissions = state.borrow_mut::<FP>();
permissions.check_partial_no_path()?;
permissions
.check_partial_no_path()
.map_err(ReprError::Permission)?;
if ptr.is_null() {
return Err(type_error("Invalid CString pointer, pointer is null"));
return Err(ReprError::InvalidCString);
}
let cstr =
// SAFETY: Pointer and offset are user provided.
unsafe { CStr::from_ptr(ptr.offset(offset) as *const c_char) }.to_bytes();
let value = v8::String::new_from_utf8(scope, cstr, v8::NewStringType::Normal)
.ok_or_else(|| {
type_error("Invalid CString pointer, string exceeds max length")
})?;
.ok_or_else(|| ReprError::CStringTooLong)?;
Ok(value)
}
@ -216,15 +267,17 @@ pub fn op_ffi_read_bool<FP>(
state: &mut OpState,
ptr: *mut c_void,
#[number] offset: isize,
) -> Result<bool, AnyError>
) -> Result<bool, ReprError>
where
FP: FfiPermissions + 'static,
{
let permissions = state.borrow_mut::<FP>();
permissions.check_partial_no_path()?;
permissions
.check_partial_no_path()
.map_err(ReprError::Permission)?;
if ptr.is_null() {
return Err(type_error("Invalid bool pointer, pointer is null"));
return Err(ReprError::InvalidBool);
}
// SAFETY: ptr and offset are user provided.
@ -236,15 +289,17 @@ pub fn op_ffi_read_u8<FP>(
state: &mut OpState,
ptr: *mut c_void,
#[number] offset: isize,
) -> Result<u32, AnyError>
) -> Result<u32, ReprError>
where
FP: FfiPermissions + 'static,
{
let permissions = state.borrow_mut::<FP>();
permissions.check_partial_no_path()?;
permissions
.check_partial_no_path()
.map_err(ReprError::Permission)?;
if ptr.is_null() {
return Err(type_error("Invalid u8 pointer, pointer is null"));
return Err(ReprError::InvalidU8);
}
// SAFETY: ptr and offset are user provided.
@ -258,15 +313,17 @@ pub fn op_ffi_read_i8<FP>(
state: &mut OpState,
ptr: *mut c_void,
#[number] offset: isize,
) -> Result<i32, AnyError>
) -> Result<i32, ReprError>
where
FP: FfiPermissions + 'static,
{
let permissions = state.borrow_mut::<FP>();
permissions.check_partial_no_path()?;
permissions
.check_partial_no_path()
.map_err(ReprError::Permission)?;
if ptr.is_null() {
return Err(type_error("Invalid i8 pointer, pointer is null"));
return Err(ReprError::InvalidI8);
}
// SAFETY: ptr and offset are user provided.
@ -280,15 +337,17 @@ pub fn op_ffi_read_u16<FP>(
state: &mut OpState,
ptr: *mut c_void,
#[number] offset: isize,
) -> Result<u32, AnyError>
) -> Result<u32, ReprError>
where
FP: FfiPermissions + 'static,
{
let permissions = state.borrow_mut::<FP>();
permissions.check_partial_no_path()?;
permissions
.check_partial_no_path()
.map_err(ReprError::Permission)?;
if ptr.is_null() {
return Err(type_error("Invalid u16 pointer, pointer is null"));
return Err(ReprError::InvalidU16);
}
// SAFETY: ptr and offset are user provided.
@ -302,15 +361,17 @@ pub fn op_ffi_read_i16<FP>(
state: &mut OpState,
ptr: *mut c_void,
#[number] offset: isize,
) -> Result<i32, AnyError>
) -> Result<i32, ReprError>
where
FP: FfiPermissions + 'static,
{
let permissions = state.borrow_mut::<FP>();
permissions.check_partial_no_path()?;
permissions
.check_partial_no_path()
.map_err(ReprError::Permission)?;
if ptr.is_null() {
return Err(type_error("Invalid i16 pointer, pointer is null"));
return Err(ReprError::InvalidI16);
}
// SAFETY: ptr and offset are user provided.
@ -324,15 +385,17 @@ pub fn op_ffi_read_u32<FP>(
state: &mut OpState,
ptr: *mut c_void,
#[number] offset: isize,
) -> Result<u32, AnyError>
) -> Result<u32, ReprError>
where
FP: FfiPermissions + 'static,
{
let permissions = state.borrow_mut::<FP>();
permissions.check_partial_no_path()?;
permissions
.check_partial_no_path()
.map_err(ReprError::Permission)?;
if ptr.is_null() {
return Err(type_error("Invalid u32 pointer, pointer is null"));
return Err(ReprError::InvalidU32);
}
// SAFETY: ptr and offset are user provided.
@ -344,15 +407,17 @@ pub fn op_ffi_read_i32<FP>(
state: &mut OpState,
ptr: *mut c_void,
#[number] offset: isize,
) -> Result<i32, AnyError>
) -> Result<i32, ReprError>
where
FP: FfiPermissions + 'static,
{
let permissions = state.borrow_mut::<FP>();
permissions.check_partial_no_path()?;
permissions
.check_partial_no_path()
.map_err(ReprError::Permission)?;
if ptr.is_null() {
return Err(type_error("Invalid i32 pointer, pointer is null"));
return Err(ReprError::InvalidI32);
}
// SAFETY: ptr and offset are user provided.
@ -367,15 +432,17 @@ pub fn op_ffi_read_u64<FP>(
// Note: The representation of 64-bit integers is function-wide. We cannot
// choose to take this parameter as a number while returning a bigint.
#[bigint] offset: isize,
) -> Result<u64, AnyError>
) -> Result<u64, ReprError>
where
FP: FfiPermissions + 'static,
{
let permissions = state.borrow_mut::<FP>();
permissions.check_partial_no_path()?;
permissions
.check_partial_no_path()
.map_err(ReprError::Permission)?;
if ptr.is_null() {
return Err(type_error("Invalid u64 pointer, pointer is null"));
return Err(ReprError::InvalidU64);
}
let value =
@ -393,15 +460,17 @@ pub fn op_ffi_read_i64<FP>(
// Note: The representation of 64-bit integers is function-wide. We cannot
// choose to take this parameter as a number while returning a bigint.
#[bigint] offset: isize,
) -> Result<i64, AnyError>
) -> Result<i64, ReprError>
where
FP: FfiPermissions + 'static,
{
let permissions = state.borrow_mut::<FP>();
permissions.check_partial_no_path()?;
permissions
.check_partial_no_path()
.map_err(ReprError::Permission)?;
if ptr.is_null() {
return Err(type_error("Invalid i64 pointer, pointer is null"));
return Err(ReprError::InvalidI64);
}
let value =
@ -416,15 +485,17 @@ pub fn op_ffi_read_f32<FP>(
state: &mut OpState,
ptr: *mut c_void,
#[number] offset: isize,
) -> Result<f32, AnyError>
) -> Result<f32, ReprError>
where
FP: FfiPermissions + 'static,
{
let permissions = state.borrow_mut::<FP>();
permissions.check_partial_no_path()?;
permissions
.check_partial_no_path()
.map_err(ReprError::Permission)?;
if ptr.is_null() {
return Err(type_error("Invalid f32 pointer, pointer is null"));
return Err(ReprError::InvalidF32);
}
// SAFETY: ptr and offset are user provided.
@ -436,15 +507,17 @@ pub fn op_ffi_read_f64<FP>(
state: &mut OpState,
ptr: *mut c_void,
#[number] offset: isize,
) -> Result<f64, AnyError>
) -> Result<f64, ReprError>
where
FP: FfiPermissions + 'static,
{
let permissions = state.borrow_mut::<FP>();
permissions.check_partial_no_path()?;
permissions
.check_partial_no_path()
.map_err(ReprError::Permission)?;
if ptr.is_null() {
return Err(type_error("Invalid f64 pointer, pointer is null"));
return Err(ReprError::InvalidF64);
}
// SAFETY: ptr and offset are user provided.
@ -456,15 +529,17 @@ pub fn op_ffi_read_ptr<FP>(
state: &mut OpState,
ptr: *mut c_void,
#[number] offset: isize,
) -> Result<*mut c_void, AnyError>
) -> Result<*mut c_void, ReprError>
where
FP: FfiPermissions + 'static,
{
let permissions = state.borrow_mut::<FP>();
permissions.check_partial_no_path()?;
permissions
.check_partial_no_path()
.map_err(ReprError::Permission)?;
if ptr.is_null() {
return Err(type_error("Invalid pointer pointer, pointer is null"));
return Err(ReprError::InvalidPointer);
}
// SAFETY: ptr and offset are user provided.

31
ext/ffi/static.rs
View file

@ -2,14 +2,24 @@
use crate::dlfcn::DynamicLibraryResource;
use crate::symbol::NativeType;
use deno_core::error::type_error;
use deno_core::error::AnyError;
use deno_core::op2;
use deno_core::v8;
use deno_core::OpState;
use deno_core::ResourceId;
use std::ptr;
#[derive(Debug, thiserror::Error)]
pub enum StaticError {
#[error(transparent)]
Dlfcn(super::DlfcnError),
#[error("Invalid FFI static type 'void'")]
InvalidTypeVoid,
#[error("Invalid FFI static type 'struct'")]
InvalidTypeStruct,
#[error(transparent)]
Resource(deno_core::error::AnyError),
}
#[op2]
pub fn op_ffi_get_static<'scope>(
scope: &mut v8::HandleScope<'scope>,
@ -18,24 +28,27 @@ pub fn op_ffi_get_static<'scope>(
#[string] name: String,
#[serde] static_type: NativeType,
optional: bool,
) -> Result<v8::Local<'scope, v8::Value>, AnyError> {
let resource = state.resource_table.get::<DynamicLibraryResource>(rid)?;
) -> Result<v8::Local<'scope, v8::Value>, StaticError> {
let resource = state
.resource_table
.get::<DynamicLibraryResource>(rid)
.map_err(StaticError::Resource)?;
let data_ptr = match resource.get_static(name) {
Ok(data_ptr) => Ok(data_ptr),
Ok(data_ptr) => data_ptr,
Err(err) => {
if optional {
let null: v8::Local<v8::Value> = v8::null(scope).into();
return Ok(null);
} else {
Err(err)
return Err(StaticError::Dlfcn(err));
}
}
}?;
};
Ok(match static_type {
NativeType::Void => {
return Err(type_error("Invalid FFI static type 'void'"));
return Err(StaticError::InvalidTypeVoid);
}
NativeType::Bool => {
// SAFETY: ptr is user provided
@ -132,7 +145,7 @@ pub fn op_ffi_get_static<'scope>(
external
}
NativeType::Struct(_) => {
return Err(type_error("Invalid FFI static type 'struct'"));
return Err(StaticError::InvalidTypeStruct);
}
})
}

80
runtime/errors.rs
View file

@ -17,6 +17,12 @@ use deno_core::serde_json;
use deno_core::url;
use deno_core::ModuleResolutionError;
use deno_cron::CronError;
use deno_ffi::CallError;
use deno_ffi::CallbackError;
use deno_ffi::DlfcnError;
use deno_ffi::IRError;
use deno_ffi::ReprError;
use deno_ffi::StaticError;
use deno_tls::TlsError;
use deno_webstorage::WebStorageError;
use std::env;
@ -159,6 +165,65 @@ pub fn get_nix_error_class(error: &nix::Error) -> &'static str {
}
}
fn get_ffi_repr_error_class(e: &ReprError) -> &'static str {
match e {
ReprError::InvalidOffset => "TypeError",
ReprError::InvalidArrayBuffer => "TypeError",
ReprError::DestinationLengthTooShort => "RangeError",
ReprError::InvalidCString => "TypeError",
ReprError::CStringTooLong => "TypeError",
ReprError::InvalidBool => "TypeError",
ReprError::InvalidU8 => "TypeError",
ReprError::InvalidI8 => "TypeError",
ReprError::InvalidU16 => "TypeError",
ReprError::InvalidI16 => "TypeError",
ReprError::InvalidU32 => "TypeError",
ReprError::InvalidI32 => "TypeError",
ReprError::InvalidU64 => "TypeError",
ReprError::InvalidI64 => "TypeError",
ReprError::InvalidF32 => "TypeError",
ReprError::InvalidF64 => "TypeError",
ReprError::InvalidPointer => "TypeError",
ReprError::Permission(e) => get_error_class_name(e).unwrap_or("Error"),
}
}
fn get_ffi_dlfcn_error_class(e: &DlfcnError) -> &'static str {
match e {
DlfcnError::RegisterSymbol { .. } => "Error",
DlfcnError::Dlopen(_) => "Error",
DlfcnError::Permission(e) => get_error_class_name(e).unwrap_or("Error"),
DlfcnError::Other(e) => get_error_class_name(e).unwrap_or("Error"),
}
}
fn get_ffi_static_error_class(e: &StaticError) -> &'static str {
match e {
StaticError::Dlfcn(e) => get_ffi_dlfcn_error_class(e),
StaticError::InvalidTypeVoid => "TypeError",
StaticError::InvalidTypeStruct => "TypeError",
StaticError::Resource(e) => get_error_class_name(e).unwrap_or("Error"),
}
}
fn get_ffi_callback_error_class(e: &CallbackError) -> &'static str {
match e {
CallbackError::Resource(e) => get_error_class_name(e).unwrap_or("Error"),
CallbackError::Other(e) => get_error_class_name(e).unwrap_or("Error"),
CallbackError::Permission(e) => get_error_class_name(e).unwrap_or("Error"),
}
}
fn get_ffi_call_error_class(e: &CallError) -> &'static str {
match e {
CallError::IR(_) => "TypeError",
CallError::NonblockingCallFailure(_) => "Error",
CallError::InvalidSymbol(_) => "TypeError",
CallError::Permission(e) => get_error_class_name(e).unwrap_or("Error"),
CallError::Callback(e) => get_ffi_callback_error_class(e),
}
}
fn get_webstorage_class_name(e: &WebStorageError) -> &'static str {
match e {
WebStorageError::ContextNotSupported => "DOMExceptionNotSupportedError",
@ -232,6 +297,21 @@ pub fn get_error_class_name(e: &AnyError) -> Option<&'static str> {
.or_else(|| deno_webgpu::error::get_error_class_name(e))
.or_else(|| deno_web::get_error_class_name(e))
.or_else(|| deno_websocket::get_network_error_class_name(e))
.or_else(|| e.downcast_ref::<IRError>().map(|_| "TypeError"))
.or_else(|| e.downcast_ref::<ReprError>().map(get_ffi_repr_error_class))
.or_else(|| {
e.downcast_ref::<DlfcnError>()
.map(get_ffi_dlfcn_error_class)
})
.or_else(|| {
e.downcast_ref::<StaticError>()
.map(get_ffi_static_error_class)
})
.or_else(|| {
e.downcast_ref::<CallbackError>()
.map(get_ffi_callback_error_class)
})
.or_else(|| e.downcast_ref::<CallError>().map(get_ffi_call_error_class))
.or_else(|| e.downcast_ref::<TlsError>().map(get_tls_error_class))
.or_else(|| e.downcast_ref::<CronError>().map(get_cron_error_class))
.or_else(|| e.downcast_ref::<CanvasError>().map(get_canvas_error))