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// Copyright 2014 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef V8_EXECUTION_EXECUTION_H_
#define V8_EXECUTION_EXECUTION_H_
#include "src/common/globals.h"
namespace v8 {
namespace internal {
class MicrotaskQueue;
class Execution final : public AllStatic {
public:
// Whether to report pending messages, or keep them pending on the isolate.
enum class MessageHandling { kReport, kKeepPending };
enum class Target { kCallable, kRunMicrotasks };
// Call a function (that is not a script), the caller supplies a receiver and
// an array of arguments.
// When the function called is not in strict mode, receiver is
// converted to an object.
V8_EXPORT_PRIVATE V8_WARN_UNUSED_RESULT static MaybeHandle<Object> Call(
Isolate* isolate, Handle<Object> callable, Handle<Object> receiver,
int argc, Handle<Object> argv[]);
// Run a script. For JSFunctions that are not scripts, use Execution::Call.
// Depending on the script, the host_defined_options might not be used but the
// caller has to provide it at all times.
V8_EXPORT_PRIVATE V8_WARN_UNUSED_RESULT static MaybeHandle<Object> CallScript(
Isolate* isolate, Handle<JSFunction> callable, Handle<Object> receiver,
Handle<Object> host_defined_options);
V8_WARN_UNUSED_RESULT static MaybeHandle<Object> CallBuiltin(
Isolate* isolate, Handle<JSFunction> builtin, Handle<Object> receiver,
int argc, Handle<Object> argv[]);
// Construct object from function, the caller supplies an array of
// arguments.
V8_WARN_UNUSED_RESULT static MaybeHandle<Object> New(
Isolate* isolate, Handle<Object> constructor, int argc,
Handle<Object> argv[]);
V8_WARN_UNUSED_RESULT static MaybeHandle<Object> New(
Isolate* isolate, Handle<Object> constructor, Handle<Object> new_target,
int argc, Handle<Object> argv[]);
// Call a function, just like Call(), but handle don't report exceptions
// externally.
// The return value is either the result of calling the function (if no
// exception occurred), or an empty handle.
// If message_handling is MessageHandling::kReport, exceptions (except for
// termination exceptions) will be stored in exception_out (if not a
// nullptr).
V8_EXPORT_PRIVATE static MaybeHandle<Object> TryCall(
Isolate* isolate, Handle<Object> callable, Handle<Object> receiver,
int argc, Handle<Object> argv[], MessageHandling message_handling,
MaybeHandle<Object>* exception_out, bool reschedule_terminate = true);
// Same as Execute::TryCall but for scripts which need an explicit
// host-defined options object. See Execution:CallScript
V8_EXPORT_PRIVATE static MaybeHandle<Object> TryCallScript(
Isolate* isolate, Handle<JSFunction> script_function,
Handle<Object> receiver, Handle<FixedArray> host_defined_options,
MessageHandling message_handling, MaybeHandle<Object>* exception_out,
bool reschedule_terminate = true);
// Convenience method for performing RunMicrotasks
static MaybeHandle<Object> TryRunMicrotasks(Isolate* isolate,
MicrotaskQueue* microtask_queue);
#if V8_ENABLE_WEBASSEMBLY
// Call a Wasm function identified by {wasm_call_target} through the
// provided {wrapper_code}, which must match the function's signature.
// Upon return, either isolate->has_pending_exception() is true, or
// the function's return values are in {packed_args}.
V8_EXPORT_PRIVATE static void CallWasm(Isolate* isolate,
Handle<Code> wrapper_code,
Address wasm_call_target,
Handle<Object> object_ref,
Address packed_args);
#endif // V8_ENABLE_WEBASSEMBLY
};
} // namespace internal
} // namespace v8
#endif // V8_EXECUTION_EXECUTION_H_
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