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src,stream: use SetAccessorProperty instead of SetAccessor #17665

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src,stream: use SetAccessorProperty instead of SetAccessor #17665

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329e162
Change to using SetAccessorProperty instead of SetAccessor in StreamBase
jure Dec 13, 2017
dcca3a5
Remove extra parentheses
jure Dec 13, 2017
ebbe147
Fix indentation
jure Dec 14, 2017
a03028f
Check for TypeError instead of matching error msg
jure Dec 14, 2017
06d8157
Change PrototypeTemplate SetAccessor to SetAccessorProperty
jure Dec 14, 2017
0b96b12
Changing SetAccessor to SetAccessorProperty in udp_wrap
jure Dec 14, 2017
26ffff1
Change InstanceTemplate SetAccessor to SetAccessorProperty
jure Dec 14, 2017
9292fa0
Change InstanceTemplate SetAccessor to SetAccessorProperty
jure Dec 14, 2017
354008a
Fix indentation and linting errors in node_crypto
jure Dec 14, 2017
a199e07
Fixes for indentation
jure Dec 14, 2017
5eb6507
Add more tests for UDP and crypto
jure Dec 14, 2017
232d2be
Fixes for indentation
jure Dec 14, 2017
d89578a
Use env->as_external to get access to Environment in callback
jure Dec 14, 2017
5a60daa
More env->as_external to get access to Environment in callback
jure Dec 14, 2017
84905d6
Use env->as_external in node_perf too
jure Dec 14, 2017
73aaf0e
Update comments
jure Dec 14, 2017
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74 changes: 40 additions & 34 deletions src/stream_base-inl.h
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Original file line number Diff line number Diff line change
Expand Up @@ -11,7 +11,7 @@

namespace node {

using v8::AccessorSignature;
using v8::Signature;
using v8::External;
using v8::FunctionCallbackInfo;
using v8::FunctionTemplate;
Expand All @@ -34,31 +34,42 @@ void StreamBase::AddMethods(Environment* env,
enum PropertyAttribute attributes =
static_cast<PropertyAttribute>(
v8::ReadOnly | v8::DontDelete | v8::DontEnum);
Local<AccessorSignature> signature =
AccessorSignature::New(env->isolate(), t);
t->PrototypeTemplate()->SetAccessor(env->fd_string(),
GetFD<Base>,
nullptr,
env->as_external(),
v8::DEFAULT,
attributes,
signature);

t->PrototypeTemplate()->SetAccessor(env->external_stream_string(),
GetExternal<Base>,
nullptr,
env->as_external(),
v8::DEFAULT,
attributes,
signature);

t->PrototypeTemplate()->SetAccessor(env->bytes_read_string(),
GetBytesRead<Base>,
nullptr,
env->as_external(),
v8::DEFAULT,
attributes,
signature);

Local<Signature> signature =
Signature::New(env->isolate(), t);
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For the person landing this commit: these two lines could be merged into a single line, which might help with readability.

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👍 This used to be AccessorSignature, and was over the limit. Fixed.


Local<FunctionTemplate> get_fd_templ = FunctionTemplate::New(
env->isolate(),
GetFD<Base>,
Local<Value>(),
signature);
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For the person landing this commit: for consistency the indentation should look something like:

  Local<FunctionTemplate> get_fd_templ =
      FunctionTemplate::New(env->isolate(),
                            GetFD<Base>,
                            Local<Value>(),
                            signature);

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👍 Fixed, was struggling a bit with how to indent it before.


Local<FunctionTemplate> get_external_templ = FunctionTemplate::New(
env->isolate(),
GetExternal<Base>,
Local<Value>(),
signature);

Local<FunctionTemplate> get_bytes_read = FunctionTemplate::New(
env->isolate(),
GetBytesRead<Base>,
Local<Value>(),
signature);

t->PrototypeTemplate()->SetAccessorProperty(env->fd_string(),
get_fd_templ,
Local<FunctionTemplate>(),
attributes);

t->PrototypeTemplate()->SetAccessorProperty(env->external_stream_string(),
get_external_templ,
Local<FunctionTemplate>(),
attributes);

t->PrototypeTemplate()->SetAccessorProperty(env->bytes_read_string(),
get_bytes_read,
Local<FunctionTemplate>(),
attributes);

env->SetProtoMethod(t, "readStart", JSMethod<Base, &StreamBase::ReadStart>);
env->SetProtoMethod(t, "readStop", JSMethod<Base, &StreamBase::ReadStop>);
Expand All @@ -85,8 +96,7 @@ void StreamBase::AddMethods(Environment* env,


template <class Base>
void StreamBase::GetFD(Local<String> key,
const PropertyCallbackInfo<Value>& args) {
void StreamBase::GetFD(const FunctionCallbackInfo<Value>& args) {
// Mimic implementation of StreamBase::GetFD() and UDPWrap::GetFD().
Base* handle;
ASSIGN_OR_RETURN_UNWRAP(&handle,
Expand All @@ -100,10 +110,8 @@ void StreamBase::GetFD(Local<String> key,
args.GetReturnValue().Set(wrap->GetFD());
}


template <class Base>
void StreamBase::GetBytesRead(Local<String> key,
const PropertyCallbackInfo<Value>& args) {
void StreamBase::GetBytesRead(const FunctionCallbackInfo<Value>& args) {
// The handle instance hasn't been set. So no bytes could have been read.
Base* handle;
ASSIGN_OR_RETURN_UNWRAP(&handle,
Expand All @@ -115,10 +123,8 @@ void StreamBase::GetBytesRead(Local<String> key,
args.GetReturnValue().Set(static_cast<double>(wrap->bytes_read_));
}


template <class Base>
void StreamBase::GetExternal(Local<String> key,
const PropertyCallbackInfo<Value>& args) {
void StreamBase::GetExternal(const FunctionCallbackInfo<Value>& args) {
Base* handle;
ASSIGN_OR_RETURN_UNWRAP(&handle, args.This());

Expand Down
9 changes: 3 additions & 6 deletions src/stream_base.h
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Expand Up @@ -265,16 +265,13 @@ class StreamBase : public StreamResource {
int WriteString(const v8::FunctionCallbackInfo<v8::Value>& args);

template <class Base>
static void GetFD(v8::Local<v8::String> key,
const v8::PropertyCallbackInfo<v8::Value>& args);
static void GetFD(const v8::FunctionCallbackInfo<v8::Value>& args);

template <class Base>
static void GetExternal(v8::Local<v8::String> key,
const v8::PropertyCallbackInfo<v8::Value>& args);
static void GetExternal(const v8::FunctionCallbackInfo<v8::Value>& args);

template <class Base>
static void GetBytesRead(v8::Local<v8::String> key,
const v8::PropertyCallbackInfo<v8::Value>& args);
static void GetBytesRead(const v8::FunctionCallbackInfo<v8::Value>& args);

template <class Base,
int (StreamBase::*Method)(
Expand Down
20 changes: 18 additions & 2 deletions test/parallel/test-stream-base-prototype-accessors.js
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Expand Up @@ -10,9 +10,9 @@ const assert = require('assert');
// Or anything that calls StreamBase::AddMethods when setting up its prototype
const TTY = process.binding('tty_wrap').TTY;

// Should throw instead of raise assertions
{
const msg = /TypeError: Method \w+ called on incompatible receiver/;
// Should throw instead of raise assertions
const msg = /TypeError: Illegal invocation/;
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Even better, change all uses of msg below to TypeError, because the exact error message may differ depending on the JavaScript engine.

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👍 Fixed.

assert.throws(() => {
TTY.prototype.bytesRead;
}, msg);
Expand All @@ -24,4 +24,20 @@ const TTY = process.binding('tty_wrap').TTY;
assert.throws(() => {
TTY.prototype._externalStream;
}, msg);

// Should not throw for Object.getOwnPropertyDescriptor
assert.strictEqual(
typeof (Object.getOwnPropertyDescriptor(TTY.prototype, 'bytesRead')),
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You don’t need the parentheses after typeof here

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👍 Removed.

'object'
);

assert.strictEqual(
typeof (Object.getOwnPropertyDescriptor(TTY.prototype, 'fd')),
'object'
);

assert.strictEqual(
typeof (Object.getOwnPropertyDescriptor(TTY.prototype, '_externalStream')),
'object'
);
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@TimothyGu TimothyGu Dec 14, 2017 •
edited
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Similar tests should exist for Object.getOwnPropertyDescriptor(crypto.SecureContext.prototype, '_external') and Object.getOwnPropertyDescriptor(crypto.Connection.prototype, '_external') where crypto = process.binding('crypto'), and Object.getOwnPropertyDescriptor(process.binding('udp_wrap').UDP.prototype, 'fd').

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👍 Added.

}