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#include "JSReadableHelper.h"
#include "JSReadableState.h"
#include "JSBufferList.h"
#include "JSBuffer.h"
#include "JSEventEmitter.h"
#include "JavaScriptCore/Lookup.h"
#include "JavaScriptCore/ObjectConstructor.h"
#include "ZigGlobalObject.h"
#include "JSDOMOperation.h"
#include "JSDOMAttribute.h"
#include "headers.h"
#include "JSDOMConvertEnumeration.h"
namespace WebCore {
using namespace JSC;
static JSC_DECLARE_HOST_FUNCTION(jsReadable_maybeReadMore_);
JSC_DEFINE_HOST_FUNCTION(jsReadable_maybeReadMore_, (JSGlobalObject * lexicalGlobalObject, CallFrame* callFrame))
{
VM& vm = lexicalGlobalObject->vm();
auto throwScope = DECLARE_THROW_SCOPE(vm);
if (callFrame->argumentCount() < 2) {
throwTypeError(lexicalGlobalObject, throwScope, "Not enough arguments"_s);
return JSValue::encode(jsUndefined());
}
JSObject* stream = callFrame->uncheckedArgument(0).toObject(lexicalGlobalObject);
RETURN_IF_EXCEPTION(throwScope, JSValue::encode(jsUndefined()));
JSReadableState* state = jsDynamicCast<JSReadableState*>(callFrame->uncheckedArgument(1));
if (!state) {
throwTypeError(lexicalGlobalObject, throwScope, "Second argument not ReadableState"_s);
return JSValue::encode(jsUndefined());
}
auto read = stream->get(lexicalGlobalObject, Identifier::fromString(vm, "read"_s));
auto callData = JSC::getCallData(read);
if (callData.type == CallData::Type::None) {
throwException(lexicalGlobalObject, throwScope, createNotAFunctionError(lexicalGlobalObject, read));
return JSValue::encode(jsUndefined());
}
MarkedArgumentBuffer args;
args.append(jsNumber(0));
while (
!state->m_reading &&
!state->m_ended &&
(state->m_length < state->m_highWaterMark || (state->m_flowing > 0 && state->m_length == 0))) {
int64_t len = state->m_length;
JSC::call(lexicalGlobalObject, read, callData, JSValue(stream), args);
if (len == state->m_length)
break;
}
RELEASE_AND_RETURN(throwScope, JSValue::encode(jsUndefined()));
}
JSC_DEFINE_HOST_FUNCTION(jsReadable_maybeReadMore, (JSGlobalObject * lexicalGlobalObject, CallFrame* callFrame))
{
VM& vm = lexicalGlobalObject->vm();
auto throwScope = DECLARE_THROW_SCOPE(vm);
if (callFrame->argumentCount() < 2) {
throwTypeError(lexicalGlobalObject, throwScope, "Not enough arguments"_s);
return JSValue::encode(jsUndefined());
}
JSValue streamVal = callFrame->uncheckedArgument(0);
JSValue stateVal = callFrame->uncheckedArgument(1);
// make this static?
JSFunction* maybeReadMore_ = JSC::JSFunction::create(
vm, lexicalGlobalObject, 0, "maybeReadMore_"_s, jsReadable_maybeReadMore_, ImplementationVisibility::Public);
lexicalGlobalObject->queueMicrotask(maybeReadMore_, streamVal, stateVal, JSValue{}, JSValue{});
RELEASE_AND_RETURN(throwScope, JSValue::encode(jsUndefined()));
}
void flow(JSGlobalObject* lexicalGlobalObject, JSObject* stream, JSReadableState* state)
{
VM& vm = lexicalGlobalObject->vm();
auto throwScope = DECLARE_THROW_SCOPE(vm);
auto read = stream->get(lexicalGlobalObject, Identifier::fromString(vm, "read"_s));
auto callData = JSC::getCallData(read);
if (callData.type == CallData::Type::None) {
throwException(lexicalGlobalObject, throwScope, createNotAFunctionError(lexicalGlobalObject, read));
return;
}
MarkedArgumentBuffer args;
while (state->m_flowing > 0) {
JSValue ret = JSC::call(lexicalGlobalObject, read, callData, JSValue(stream), args);
if (ret.isNull())
break;
}
}
static JSC_DECLARE_HOST_FUNCTION(jsReadable_resume_);
JSC_DEFINE_HOST_FUNCTION(jsReadable_resume_, (JSGlobalObject * lexicalGlobalObject, CallFrame* callFrame))
{
VM& vm = lexicalGlobalObject->vm();
auto throwScope = DECLARE_THROW_SCOPE(vm);
if (callFrame->argumentCount() < 2) {
throwTypeError(lexicalGlobalObject, throwScope, "Not enough arguments"_s);
return JSValue::encode(jsUndefined());
}
JSObject* stream = callFrame->uncheckedArgument(0).toObject(lexicalGlobalObject);
RETURN_IF_EXCEPTION(throwScope, JSValue::encode(jsUndefined()));
JSReadableState* state = jsDynamicCast<JSReadableState*>(callFrame->uncheckedArgument(1));
if (!state) {
throwTypeError(lexicalGlobalObject, throwScope, "Second argument not ReadableState"_s);
return JSValue::encode(jsUndefined());
}
if (!state->m_reading) {
// stream.read(0)
auto read = stream->get(lexicalGlobalObject, Identifier::fromString(vm, "read"_s));
auto callData = JSC::getCallData(read);
if (callData.type == CallData::Type::None) {
throwException(lexicalGlobalObject, throwScope, createNotAFunctionError(lexicalGlobalObject, read));
return JSValue::encode(jsUndefined());
}
MarkedArgumentBuffer args;
args.append(jsNumber(0));
JSC::call(lexicalGlobalObject, read, callData, JSValue(stream), args);
}
state->m_resumeScheduled = true;
// stream.emit('resume')
auto eventType = Identifier::fromString(vm, "resume"_s);
MarkedArgumentBuffer args;
auto emitter = jsDynamicCast<JSEventEmitter*>(stream);
if (!emitter) {
throwTypeError(lexicalGlobalObject, throwScope, "stream is not EventEmitter"_s);
return JSValue::encode(jsUndefined());
}
emitter->wrapped().emitForBindings(eventType, args);
flow(lexicalGlobalObject, stream, state);
if (state->m_flowing && !state->m_reading) {
// stream.read(0)
auto read = stream->get(lexicalGlobalObject, Identifier::fromString(vm, "read"_s));
auto callData = JSC::getCallData(read);
if (callData.type == CallData::Type::None) {
throwException(lexicalGlobalObject, throwScope, createNotAFunctionError(lexicalGlobalObject, read));
return JSValue::encode(jsUndefined());
}
MarkedArgumentBuffer args;
args.append(jsNumber(0));
JSC::call(lexicalGlobalObject, read, callData, JSValue(stream), args);
}
RELEASE_AND_RETURN(throwScope, JSValue::encode(jsUndefined()));
}
JSC_DEFINE_HOST_FUNCTION(jsReadable_resume, (JSGlobalObject * lexicalGlobalObject, CallFrame* callFrame))
{
VM& vm = lexicalGlobalObject->vm();
auto throwScope = DECLARE_THROW_SCOPE(vm);
if (callFrame->argumentCount() < 2) {
throwTypeError(lexicalGlobalObject, throwScope, "Not enough arguments"_s);
return JSValue::encode(jsUndefined());
}
JSValue streamVal = callFrame->uncheckedArgument(0);
JSValue stateVal = callFrame->uncheckedArgument(1);
JSReadableState* state = jsDynamicCast<JSReadableState*>(callFrame->uncheckedArgument(1));
if (!state) {
throwTypeError(lexicalGlobalObject, throwScope, "Second argument not ReadableState"_s);
return JSValue::encode(jsUndefined());
}
if (!state->m_resumeScheduled) {
state->m_resumeScheduled = true;
// make this static?
JSFunction* resume_ = JSC::JSFunction::create(
vm, lexicalGlobalObject, 0, "resume_"_s, jsReadable_resume_, ImplementationVisibility::Public);
lexicalGlobalObject->queueMicrotask(resume_, streamVal, stateVal, JSValue{}, JSValue{});
}
RELEASE_AND_RETURN(throwScope, JSValue::encode(jsUndefined()));
}
JSC_DEFINE_HOST_FUNCTION(jsReadable_emitReadable_, (JSGlobalObject * lexicalGlobalObject, CallFrame* callFrame))
{
VM& vm = lexicalGlobalObject->vm();
auto throwScope = DECLARE_THROW_SCOPE(vm);
if (callFrame->argumentCount() < 2) {
throwTypeError(lexicalGlobalObject, throwScope, "Not enough arguments"_s);
return JSValue::encode(jsUndefined());
}
JSObject* stream = callFrame->uncheckedArgument(0).toObject(lexicalGlobalObject);
RETURN_IF_EXCEPTION(throwScope, JSValue::encode(jsUndefined()));
JSReadableState* state = jsDynamicCast<JSReadableState*>(callFrame->uncheckedArgument(1));
if (!state) {
throwTypeError(lexicalGlobalObject, throwScope, "Second argument not ReadableState"_s);
return JSValue::encode(jsUndefined());
}
JSValue errored = state->getDirect(vm, JSC::Identifier::fromString(vm, "errored"_s));
if (!state->m_destroyed && !errored.toBoolean(lexicalGlobalObject) && (state->m_length || state->m_ended)) {
// stream.emit('readable')
auto eventType = Identifier::fromString(vm, "readable"_s);
MarkedArgumentBuffer args;
auto emitter = jsDynamicCast<JSEventEmitter*>(stream);
if (!emitter) {
throwTypeError(lexicalGlobalObject, throwScope, "stream is not EventEmitter"_s);
return JSValue::encode(jsUndefined());
}
emitter->wrapped().emitForBindings(eventType, args);
state->m_emittedReadable = false;
}
state->m_needReadable = state->m_flowing <= 0 && !state->m_ended && state->m_length <= state->m_highWaterMark;
flow(lexicalGlobalObject, stream, state);
RELEASE_AND_RETURN(throwScope, JSValue::encode(jsUndefined()));
}
} // namespace WebCore
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