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// Copyright 2021 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 INCLUDE_V8_SCRIPT_H_
#define INCLUDE_V8_SCRIPT_H_
#include <stddef.h>
#include <stdint.h>
#include <memory>
#include <vector>
#include "v8-callbacks.h" // NOLINT(build/include_directory)
#include "v8-data.h" // NOLINT(build/include_directory)
#include "v8-local-handle.h" // NOLINT(build/include_directory)
#include "v8-maybe.h" // NOLINT(build/include_directory)
#include "v8-message.h" // NOLINT(build/include_directory)
#include "v8config.h" // NOLINT(build/include_directory)
namespace v8 {
class Function;
class Message;
class Object;
class PrimitiveArray;
class Script;
namespace internal {
class BackgroundDeserializeTask;
struct ScriptStreamingData;
} // namespace internal
/**
* A container type that holds relevant metadata for module loading.
*
* This is passed back to the embedder as part of
* HostImportModuleDynamicallyCallback for module loading.
*/
class V8_EXPORT ScriptOrModule {
public:
/**
* The name that was passed by the embedder as ResourceName to the
* ScriptOrigin. This can be either a v8::String or v8::Undefined.
*/
Local<Value> GetResourceName();
/**
* The options that were passed by the embedder as HostDefinedOptions to
* the ScriptOrigin.
*/
Local<Data> HostDefinedOptions();
};
/**
* A compiled JavaScript script, not yet tied to a Context.
*/
class V8_EXPORT UnboundScript {
public:
/**
* Binds the script to the currently entered context.
*/
Local<Script> BindToCurrentContext();
int GetId() const;
Local<Value> GetScriptName();
/**
* Data read from magic sourceURL comments.
*/
Local<Value> GetSourceURL();
/**
* Data read from magic sourceMappingURL comments.
*/
Local<Value> GetSourceMappingURL();
/**
* Returns zero based line number of the code_pos location in the script.
* -1 will be returned if no information available.
*/
int GetLineNumber(int code_pos = 0);
/**
* Returns zero based column number of the code_pos location in the script.
* -1 will be returned if no information available.
*/
int GetColumnNumber(int code_pos = 0);
static const int kNoScriptId = 0;
};
/**
* A compiled JavaScript module, not yet tied to a Context.
*/
class V8_EXPORT UnboundModuleScript : public Data {
public:
/**
* Data read from magic sourceURL comments.
*/
Local<Value> GetSourceURL();
/**
* Data read from magic sourceMappingURL comments.
*/
Local<Value> GetSourceMappingURL();
};
/**
* A location in JavaScript source.
*/
class V8_EXPORT Location {
public:
int GetLineNumber() { return line_number_; }
int GetColumnNumber() { return column_number_; }
Location(int line_number, int column_number)
: line_number_(line_number), column_number_(column_number) {}
private:
int line_number_;
int column_number_;
};
class V8_EXPORT ModuleRequest : public Data {
public:
/**
* Returns the module specifier for this ModuleRequest.
*/
Local<String> GetSpecifier() const;
/**
* Returns the source code offset of this module request.
* Use Module::SourceOffsetToLocation to convert this to line/column numbers.
*/
int GetSourceOffset() const;
/**
* Contains the import assertions for this request in the form:
* [key1, value1, source_offset1, key2, value2, source_offset2, ...].
* The keys and values are of type v8::String, and the source offsets are of
* type Int32. Use Module::SourceOffsetToLocation to convert the source
* offsets to Locations with line/column numbers.
*
* All assertions present in the module request will be supplied in this
* list, regardless of whether they are supported by the host. Per
* https://tc39.es/proposal-import-attributes/#sec-hostgetsupportedimportattributes,
* hosts are expected to throw for assertions that they do not support (as
* opposed to, for example, ignoring them).
*/
Local<FixedArray> GetImportAssertions() const;
V8_INLINE static ModuleRequest* Cast(Data* data);
private:
static void CheckCast(Data* obj);
};
/**
* A compiled JavaScript module.
*/
class V8_EXPORT Module : public Data {
public:
/**
* The different states a module can be in.
*
* This corresponds to the states used in ECMAScript except that "evaluated"
* is split into kEvaluated and kErrored, indicating success and failure,
* respectively.
*/
enum Status {
kUninstantiated,
kInstantiating,
kInstantiated,
kEvaluating,
kEvaluated,
kErrored
};
/**
* Returns the module's current status.
*/
Status GetStatus() const;
/**
* For a module in kErrored status, this returns the corresponding exception.
*/
Local<Value> GetException() const;
/**
* Returns the ModuleRequests for this module.
*/
Local<FixedArray> GetModuleRequests() const;
/**
* For the given source text offset in this module, returns the corresponding
* Location with line and column numbers.
*/
Location SourceOffsetToLocation(int offset) const;
/**
* Returns the identity hash for this object.
*/
int GetIdentityHash() const;
using ResolveModuleCallback = MaybeLocal<Module> (*)(
Local<Context> context, Local<String> specifier,
Local<FixedArray> import_assertions, Local<Module> referrer);
/**
* Instantiates the module and its dependencies.
*
* Returns an empty Maybe<bool> if an exception occurred during
* instantiation. (In the case where the callback throws an exception, that
* exception is propagated.)
*/
V8_WARN_UNUSED_RESULT Maybe<bool> InstantiateModule(
Local<Context> context, ResolveModuleCallback callback);
/**
* Evaluates the module and its dependencies.
*
* If status is kInstantiated, run the module's code and return a Promise
* object. On success, set status to kEvaluated and resolve the Promise with
* the completion value; on failure, set status to kErrored and reject the
* Promise with the error.
*
* If IsGraphAsync() is false, the returned Promise is settled.
*/
V8_WARN_UNUSED_RESULT MaybeLocal<Value> Evaluate(Local<Context> context);
/**
* Returns the namespace object of this module.
*
* The module's status must be at least kInstantiated.
*/
Local<Value> GetModuleNamespace();
/**
* Returns the corresponding context-unbound module script.
*
* The module must be unevaluated, i.e. its status must not be kEvaluating,
* kEvaluated or kErrored.
*/
Local<UnboundModuleScript> GetUnboundModuleScript();
/**
* Returns the underlying script's id.
*
* The module must be a SourceTextModule and must not have a kErrored status.
*/
int ScriptId() const;
/**
* Returns whether this module or any of its requested modules is async,
* i.e. contains top-level await.
*
* The module's status must be at least kInstantiated.
*/
bool IsGraphAsync() const;
/**
* Returns whether the module is a SourceTextModule.
*/
bool IsSourceTextModule() const;
/**
* Returns whether the module is a SyntheticModule.
*/
bool IsSyntheticModule() const;
/*
* Callback defined in the embedder. This is responsible for setting
* the module's exported values with calls to SetSyntheticModuleExport().
* The callback must return a resolved Promise to indicate success (where no
* exception was thrown) and return an empy MaybeLocal to indicate falure
* (where an exception was thrown).
*/
using SyntheticModuleEvaluationSteps =
MaybeLocal<Value> (*)(Local<Context> context, Local<Module> module);
/**
* Creates a new SyntheticModule with the specified export names, where
* evaluation_steps will be executed upon module evaluation.
* export_names must not contain duplicates.
* module_name is used solely for logging/debugging and doesn't affect module
* behavior.
*/
static Local<Module> CreateSyntheticModule(
Isolate* isolate, Local<String> module_name,
const std::vector<Local<String>>& export_names,
SyntheticModuleEvaluationSteps evaluation_steps);
/**
* Set this module's exported value for the name export_name to the specified
* export_value. This method must be called only on Modules created via
* CreateSyntheticModule. An error will be thrown if export_name is not one
* of the export_names that were passed in that CreateSyntheticModule call.
* Returns Just(true) on success, Nothing<bool>() if an error was thrown.
*/
V8_WARN_UNUSED_RESULT Maybe<bool> SetSyntheticModuleExport(
Isolate* isolate, Local<String> export_name, Local<Value> export_value);
/**
* Search the modules requested directly or indirectly by the module for
* any top-level await that has not yet resolved. If there is any, the
* returned vector contains a tuple of the unresolved module and a message
* with the pending top-level await.
* An embedder may call this before exiting to improve error messages.
*/
std::vector<std::tuple<Local<Module>, Local<Message>>>
GetStalledTopLevelAwaitMessage(Isolate* isolate);
V8_INLINE static Module* Cast(Data* data);
private:
static void CheckCast(Data* obj);
};
/**
* A compiled JavaScript script, tied to a Context which was active when the
* script was compiled.
*/
class V8_EXPORT Script {
public:
/**
* A shorthand for ScriptCompiler::Compile().
*/
static V8_WARN_UNUSED_RESULT MaybeLocal<Script> Compile(
Local<Context> context, Local<String> source,
ScriptOrigin* origin = nullptr);
/**
* Runs the script returning the resulting value. It will be run in the
* context in which it was created (ScriptCompiler::CompileBound or
* UnboundScript::BindToCurrentContext()).
*/
V8_WARN_UNUSED_RESULT MaybeLocal<Value> Run(Local<Context> context);
V8_WARN_UNUSED_RESULT MaybeLocal<Value> Run(Local<Context> context,
Local<Data> host_defined_options);
/**
* Returns the corresponding context-unbound script.
*/
Local<UnboundScript> GetUnboundScript();
/**
* The name that was passed by the embedder as ResourceName to the
* ScriptOrigin. This can be either a v8::String or v8::Undefined.
*/
Local<Value> GetResourceName();
/**
* If the script was compiled, returns the positions of lazy functions which
* were eventually compiled and executed.
*/
std::vector<int> GetProducedCompileHints() const;
};
enum class ScriptType { kClassic, kModule };
/**
* For compiling scripts.
*/
class V8_EXPORT ScriptCompiler {
public:
class ConsumeCodeCacheTask;
/**
* Compilation data that the embedder can cache and pass back to speed up
* future compilations. The data is produced if the CompilerOptions passed to
* the compilation functions in ScriptCompiler contains produce_data_to_cache
* = true. The data to cache can then can be retrieved from
* UnboundScript.
*/
struct V8_EXPORT CachedData {
enum BufferPolicy { BufferNotOwned, BufferOwned };
CachedData()
: data(nullptr),
length(0),
rejected(false),
buffer_policy(BufferNotOwned) {}
// If buffer_policy is BufferNotOwned, the caller keeps the ownership of
// data and guarantees that it stays alive until the CachedData object is
// destroyed. If the policy is BufferOwned, the given data will be deleted
// (with delete[]) when the CachedData object is destroyed.
CachedData(const uint8_t* data, int length,
BufferPolicy buffer_policy = BufferNotOwned);
~CachedData();
// TODO(marja): Async compilation; add constructors which take a callback
// which will be called when V8 no longer needs the data.
const uint8_t* data;
int length;
bool rejected;
BufferPolicy buffer_policy;
// Prevent copying.
CachedData(const CachedData&) = delete;
CachedData& operator=(const CachedData&) = delete;
};
/**
* Source code which can be then compiled to a UnboundScript or Script.
*/
class Source {
public:
// Source takes ownership of both CachedData and CodeCacheConsumeTask.
// The caller *must* ensure that the cached data is from a trusted source.
V8_INLINE Source(Local<String> source_string, const ScriptOrigin& origin,
CachedData* cached_data = nullptr,
ConsumeCodeCacheTask* consume_cache_task = nullptr);
// Source takes ownership of both CachedData and CodeCacheConsumeTask.
V8_INLINE explicit Source(
Local<String> source_string, CachedData* cached_data = nullptr,
ConsumeCodeCacheTask* consume_cache_task = nullptr);
V8_INLINE Source(Local<String> source_string, const ScriptOrigin& origin,
CompileHintCallback callback, void* callback_data);
V8_INLINE ~Source() = default;
// Ownership of the CachedData or its buffers is *not* transferred to the
// caller. The CachedData object is alive as long as the Source object is
// alive.
V8_INLINE const CachedData* GetCachedData() const;
V8_INLINE const ScriptOriginOptions& GetResourceOptions() const;
private:
friend class ScriptCompiler;
Local<String> source_string;
// Origin information
Local<Value> resource_name;
int resource_line_offset;
int resource_column_offset;
ScriptOriginOptions resource_options;
Local<Value> source_map_url;
Local<Data> host_defined_options;
// Cached data from previous compilation (if a kConsume*Cache flag is
// set), or hold newly generated cache data (kProduce*Cache flags) are
// set when calling a compile method.
std::unique_ptr<CachedData> cached_data;
std::unique_ptr<ConsumeCodeCacheTask> consume_cache_task;
// For requesting compile hints from the embedder.
CompileHintCallback compile_hint_callback = nullptr;
void* compile_hint_callback_data = nullptr;
};
/**
* For streaming incomplete script data to V8. The embedder should implement a
* subclass of this class.
*/
class V8_EXPORT ExternalSourceStream {
public:
virtual ~ExternalSourceStream() = default;
/**
* V8 calls this to request the next chunk of data from the embedder. This
* function will be called on a background thread, so it's OK to block and
* wait for the data, if the embedder doesn't have data yet. Returns the
* length of the data returned. When the data ends, GetMoreData should
* return 0. Caller takes ownership of the data.
*
* When streaming UTF-8 data, V8 handles multi-byte characters split between
* two data chunks, but doesn't handle multi-byte characters split between
* more than two data chunks. The embedder can avoid this problem by always
* returning at least 2 bytes of data.
*
* When streaming UTF-16 data, V8 does not handle characters split between
* two data chunks. The embedder has to make sure that chunks have an even
* length.
*
* If the embedder wants to cancel the streaming, they should make the next
* GetMoreData call return 0. V8 will interpret it as end of data (and most
* probably, parsing will fail). The streaming task will return as soon as
* V8 has parsed the data it received so far.
*/
virtual size_t GetMoreData(const uint8_t** src) = 0;
};
/**
* Source code which can be streamed into V8 in pieces. It will be parsed
* while streaming and compiled after parsing has completed. StreamedSource
* must be kept alive while the streaming task is run (see ScriptStreamingTask
* below).
*/
class V8_EXPORT StreamedSource {
public:
enum Encoding { ONE_BYTE, TWO_BYTE, UTF8, WINDOWS_1252 };
StreamedSource(std::unique_ptr<ExternalSourceStream> source_stream,
Encoding encoding);
~StreamedSource();
internal::ScriptStreamingData* impl() const { return impl_.get(); }
// Prevent copying.
StreamedSource(const StreamedSource&) = delete;
StreamedSource& operator=(const StreamedSource&) = delete;
private:
std::unique_ptr<internal::ScriptStreamingData> impl_;
};
/**
* A streaming task which the embedder must run on a background thread to
* stream scripts into V8. Returned by ScriptCompiler::StartStreaming.
*/
class V8_EXPORT ScriptStreamingTask final {
public:
void Run();
private:
friend class ScriptCompiler;
explicit ScriptStreamingTask(internal::ScriptStreamingData* data)
: data_(data) {}
internal::ScriptStreamingData* data_;
};
/**
* A task which the embedder must run on a background thread to
* consume a V8 code cache. Returned by
* ScriptCompiler::StartConsumingCodeCache.
*/
class V8_EXPORT ConsumeCodeCacheTask final {
public:
~ConsumeCodeCacheTask();
void Run();
/**
* Provides the source text string and origin information to the consumption
* task. May be called before, during, or after Run(). This step checks
* whether the script matches an existing script in the Isolate's
* compilation cache. To check whether such a script was found, call
* ShouldMergeWithExistingScript.
*
* The Isolate provided must be the same one used during
* StartConsumingCodeCache and must be currently entered on the thread that
* calls this function. The source text and origin provided in this step
* must precisely match those used later in the ScriptCompiler::Source that
* will contain this ConsumeCodeCacheTask.
*/
void SourceTextAvailable(Isolate* isolate, Local<String> source_text,
const ScriptOrigin& origin);
/**
* Returns whether the embedder should call MergeWithExistingScript. This
* function may be called from any thread, any number of times, but its
* return value is only meaningful after SourceTextAvailable has completed.
*/
bool ShouldMergeWithExistingScript() const;
/**
* Merges newly deserialized data into an existing script which was found
* during SourceTextAvailable. May be called only after Run() has completed.
* Can execute on any thread, like Run().
*/
void MergeWithExistingScript();
private:
friend class ScriptCompiler;
explicit ConsumeCodeCacheTask(
std::unique_ptr<internal::BackgroundDeserializeTask> impl);
std::unique_ptr<internal::BackgroundDeserializeTask> impl_;
};
enum CompileOptions {
kNoCompileOptions = 0,
kConsumeCodeCache,
kEagerCompile,
kProduceCompileHints,
kConsumeCompileHints
};
/**
* The reason for which we are not requesting or providing a code cache.
*/
enum NoCacheReason {
kNoCacheNoReason = 0,
kNoCacheBecauseCachingDisabled,
kNoCacheBecauseNoResource,
kNoCacheBecauseInlineScript,
kNoCacheBecauseModule,
kNoCacheBecauseStreamingSource,
kNoCacheBecauseInspector,
kNoCacheBecauseScriptTooSmall,
kNoCacheBecauseCacheTooCold,
kNoCacheBecauseV8Extension,
kNoCacheBecauseExtensionModule,
kNoCacheBecausePacScript,
kNoCacheBecauseInDocumentWrite,
kNoCacheBecauseResourceWithNoCacheHandler,
kNoCacheBecauseDeferredProduceCodeCache
};
/**
* Compiles the specified script (context-independent).
* Cached data as part of the source object can be optionally produced to be
* consumed later to speed up compilation of identical source scripts.
*
* Note that when producing cached data, the source must point to NULL for
* cached data. When consuming cached data, the cached data must have been
* produced by the same version of V8, and the embedder needs to ensure the
* cached data is the correct one for the given script.
*
* \param source Script source code.
* \return Compiled script object (context independent; for running it must be
* bound to a context).
*/
static V8_WARN_UNUSED_RESULT MaybeLocal<UnboundScript> CompileUnboundScript(
Isolate* isolate, Source* source,
CompileOptions options = kNoCompileOptions,
NoCacheReason no_cache_reason = kNoCacheNoReason);
/**
* Compiles the specified script (bound to current context).
*
* \param source Script source code.
* \param pre_data Pre-parsing data, as obtained by ScriptData::PreCompile()
* using pre_data speeds compilation if it's done multiple times.
* Owned by caller, no references are kept when this function returns.
* \return Compiled script object, bound to the context that was active
* when this function was called. When run it will always use this
* context.
*/
static V8_WARN_UNUSED_RESULT MaybeLocal<Script> Compile(
Local<Context> context, Source* source,
CompileOptions options = kNoCompileOptions,
NoCacheReason no_cache_reason = kNoCacheNoReason);
/**
* Returns a task which streams script data into V8, or NULL if the script
* cannot be streamed. The user is responsible for running the task on a
* background thread and deleting it. When ran, the task starts parsing the
* script, and it will request data from the StreamedSource as needed. When
* ScriptStreamingTask::Run exits, all data has been streamed and the script
* can be compiled (see Compile below).
*
* This API allows to start the streaming with as little data as possible, and
* the remaining data (for example, the ScriptOrigin) is passed to Compile.
*/
static ScriptStreamingTask* StartStreaming(
Isolate* isolate, StreamedSource* source,
ScriptType type = ScriptType::kClassic,
CompileOptions options = kNoCompileOptions);
static ConsumeCodeCacheTask* StartConsumingCodeCache(
Isolate* isolate, std::unique_ptr<CachedData> source);
/**
* Compiles a streamed script (bound to current context).
*
* This can only be called after the streaming has finished
* (ScriptStreamingTask has been run). V8 doesn't construct the source string
* during streaming, so the embedder needs to pass the full source here.
*/
static V8_WARN_UNUSED_RESULT MaybeLocal<Script> Compile(
Local<Context> context, StreamedSource* source,
Local<String> full_source_string, const ScriptOrigin& origin);
/**
* Return a version tag for CachedData for the current V8 version & flags.
*
* This value is meant only for determining whether a previously generated
* CachedData instance is still valid; the tag has no other meaing.
*
* Background: The data carried by CachedData may depend on the exact
* V8 version number or current compiler flags. This means that when
* persisting CachedData, the embedder must take care to not pass in
* data from another V8 version, or the same version with different
* features enabled.
*
* The easiest way to do so is to clear the embedder's cache on any
* such change.
*
* Alternatively, this tag can be stored alongside the cached data and
* compared when it is being used.
*/
static uint32_t CachedDataVersionTag();
/**
* Compile an ES module, returning a Module that encapsulates
* the compiled code.
*
* Corresponds to the ParseModule abstract operation in the
* ECMAScript specification.
*/
static V8_WARN_UNUSED_RESULT MaybeLocal<Module> CompileModule(
Isolate* isolate, Source* source,
CompileOptions options = kNoCompileOptions,
NoCacheReason no_cache_reason = kNoCacheNoReason);
/**
* Compiles a streamed module script.
*
* This can only be called after the streaming has finished
* (ScriptStreamingTask has been run). V8 doesn't construct the source string
* during streaming, so the embedder needs to pass the full source here.
*/
static V8_WARN_UNUSED_RESULT MaybeLocal<Module> CompileModule(
Local<Context> context, StreamedSource* v8_source,
Local<String> full_source_string, const ScriptOrigin& origin);
/**
* Compile a function for a given context. This is equivalent to running
*
* with (obj) {
* return function(args) { ... }
* }
*
* It is possible to specify multiple context extensions (obj in the above
* example).
*/
V8_DEPRECATED("Use CompileFunction")
static V8_WARN_UNUSED_RESULT MaybeLocal<Function> CompileFunctionInContext(
Local<Context> context, Source* source, size_t arguments_count,
Local<String> arguments[], size_t context_extension_count,
Local<Object> context_extensions[],
CompileOptions options = kNoCompileOptions,
NoCacheReason no_cache_reason = kNoCacheNoReason,
Local<ScriptOrModule>* script_or_module_out = nullptr);
static V8_WARN_UNUSED_RESULT MaybeLocal<Function> CompileFunction(
Local<Context> context, Source* source, size_t arguments_count = 0,
Local<String> arguments[] = nullptr, size_t context_extension_count = 0,
Local<Object> context_extensions[] = nullptr,
CompileOptions options = kNoCompileOptions,
NoCacheReason no_cache_reason = kNoCacheNoReason);
/**
* Creates and returns code cache for the specified unbound_script.
* This will return nullptr if the script cannot be serialized. The
* CachedData returned by this function should be owned by the caller.
*/
static CachedData* CreateCodeCache(Local<UnboundScript> unbound_script);
/**
* Creates and returns code cache for the specified unbound_module_script.
* This will return nullptr if the script cannot be serialized. The
* CachedData returned by this function should be owned by the caller.
*/
static CachedData* CreateCodeCache(
Local<UnboundModuleScript> unbound_module_script);
/**
* Creates and returns code cache for the specified function that was
* previously produced by CompileFunction.
* This will return nullptr if the script cannot be serialized. The
* CachedData returned by this function should be owned by the caller.
*/
static CachedData* CreateCodeCacheForFunction(Local<Function> function);
private:
static V8_WARN_UNUSED_RESULT MaybeLocal<UnboundScript> CompileUnboundInternal(
Isolate* isolate, Source* source, CompileOptions options,
NoCacheReason no_cache_reason);
static V8_WARN_UNUSED_RESULT MaybeLocal<Function> CompileFunctionInternal(
Local<Context> context, Source* source, size_t arguments_count,
Local<String> arguments[], size_t context_extension_count,
Local<Object> context_extensions[], CompileOptions options,
NoCacheReason no_cache_reason,
Local<ScriptOrModule>* script_or_module_out);
};
ScriptCompiler::Source::Source(Local<String> string, const ScriptOrigin& origin,
CachedData* data,
ConsumeCodeCacheTask* consume_cache_task)
: source_string(string),
resource_name(origin.ResourceName()),
resource_line_offset(origin.LineOffset()),
resource_column_offset(origin.ColumnOffset()),
resource_options(origin.Options()),
source_map_url(origin.SourceMapUrl()),
host_defined_options(origin.GetHostDefinedOptions()),
cached_data(data),
consume_cache_task(consume_cache_task) {}
ScriptCompiler::Source::Source(Local<String> string, CachedData* data,
ConsumeCodeCacheTask* consume_cache_task)
: source_string(string),
cached_data(data),
consume_cache_task(consume_cache_task) {}
ScriptCompiler::Source::Source(Local<String> string, const ScriptOrigin& origin,
CompileHintCallback callback,
void* callback_data)
: source_string(string),
resource_name(origin.ResourceName()),
resource_line_offset(origin.LineOffset()),
resource_column_offset(origin.ColumnOffset()),
resource_options(origin.Options()),
source_map_url(origin.SourceMapUrl()),
host_defined_options(origin.GetHostDefinedOptions()),
compile_hint_callback(callback),
compile_hint_callback_data(callback_data) {}
const ScriptCompiler::CachedData* ScriptCompiler::Source::GetCachedData()
const {
return cached_data.get();
}
const ScriptOriginOptions& ScriptCompiler::Source::GetResourceOptions() const {
return resource_options;
}
ModuleRequest* ModuleRequest::Cast(Data* data) {
#ifdef V8_ENABLE_CHECKS
CheckCast(data);
#endif
return reinterpret_cast<ModuleRequest*>(data);
}
Module* Module::Cast(Data* data) {
#ifdef V8_ENABLE_CHECKS
CheckCast(data);
#endif
return reinterpret_cast<Module*>(data);
}
} // namespace v8
#endif // INCLUDE_V8_SCRIPT_H_
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