1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
|
// Copyright 2018 the Deno authors. All rights reserved. MIT license.
#ifndef INTERNAL_H_
#define INTERNAL_H_
#include <map>
#include <string>
#include "deno.h"
#include "third_party/v8/include/v8.h"
#include "third_party/v8/src/base/logging.h"
namespace deno {
// deno_s = Wrapped Isolate.
class DenoIsolate {
public:
DenoIsolate(deno_config config)
: isolate_(nullptr),
shared_(config.shared),
current_args_(nullptr),
snapshot_creator_(nullptr),
global_import_buf_ptr_(nullptr),
recv_cb_(config.recv_cb),
resolve_cb_(config.resolve_cb),
next_req_id_(0),
user_data_(nullptr) {
array_buffer_allocator_ = v8::ArrayBuffer::Allocator::NewDefaultAllocator();
if (config.load_snapshot.data_ptr) {
snapshot_.data =
reinterpret_cast<const char*>(config.load_snapshot.data_ptr);
snapshot_.raw_size = static_cast<int>(config.load_snapshot.data_len);
}
}
~DenoIsolate() {
if (snapshot_creator_) {
delete snapshot_creator_;
} else {
isolate_->Dispose();
}
delete array_buffer_allocator_;
}
void AddIsolate(v8::Isolate* isolate);
void RegisterModule(const char* filename, v8::Local<v8::Module> module);
void ResolveOk(const char* filename, const char* source);
void ClearModules();
v8::Local<v8::Object> GetBuiltinModules();
v8::Isolate* isolate_;
v8::ArrayBuffer::Allocator* array_buffer_allocator_;
deno_buf shared_;
const v8::FunctionCallbackInfo<v8::Value>* current_args_;
v8::SnapshotCreator* snapshot_creator_;
void* global_import_buf_ptr_;
deno_recv_cb recv_cb_;
deno_resolve_cb resolve_cb_;
int32_t next_req_id_;
void* user_data_;
// identity hash -> filename
std::map<int, std::string> module_filename_map_;
// filename -> Module
std::map<std::string, v8::Persistent<v8::Module>> module_map_;
// Set by deno_resolve_ok
v8::Persistent<v8::Module> resolve_module_;
v8::Persistent<v8::Object> builtin_modules_;
v8::Persistent<v8::Context> context_;
std::map<int32_t, v8::Persistent<v8::Value>> async_data_map_;
std::map<int, v8::Persistent<v8::Value>> pending_promise_map_;
std::string last_exception_;
v8::Persistent<v8::Function> recv_;
v8::StartupData snapshot_;
v8::Persistent<v8::ArrayBuffer> global_import_buf_;
v8::Persistent<v8::ArrayBuffer> shared_ab_;
};
class UserDataScope {
DenoIsolate* deno_;
void* prev_data_;
void* data_; // Not necessary; only for sanity checking.
public:
UserDataScope(DenoIsolate* deno, void* data) : deno_(deno), data_(data) {
CHECK(deno->user_data_ == nullptr || deno->user_data_ == data_);
prev_data_ = deno->user_data_;
deno->user_data_ = data;
}
~UserDataScope() {
CHECK(deno_->user_data_ == data_);
deno_->user_data_ = prev_data_;
}
};
struct InternalFieldData {
uint32_t data;
};
static inline v8::Local<v8::String> v8_str(const char* x,
bool internalize = false) {
return v8::String::NewFromUtf8(v8::Isolate::GetCurrent(), x,
internalize ? v8::NewStringType::kInternalized
: v8::NewStringType::kNormal)
.ToLocalChecked();
}
void Print(const v8::FunctionCallbackInfo<v8::Value>& args);
void Recv(const v8::FunctionCallbackInfo<v8::Value>& args);
void Send(const v8::FunctionCallbackInfo<v8::Value>& args);
void Shared(v8::Local<v8::Name> property,
const v8::PropertyCallbackInfo<v8::Value>& info);
void BuiltinModules(v8::Local<v8::Name> property,
const v8::PropertyCallbackInfo<v8::Value>& info);
static intptr_t external_references[] = {
reinterpret_cast<intptr_t>(Print),
reinterpret_cast<intptr_t>(Recv),
reinterpret_cast<intptr_t>(Send),
reinterpret_cast<intptr_t>(Shared),
reinterpret_cast<intptr_t>(BuiltinModules),
0};
static const deno_buf empty_buf = {nullptr, 0, nullptr, 0};
Deno* NewFromSnapshot(void* user_data, deno_recv_cb cb);
void InitializeContext(v8::Isolate* isolate, v8::Local<v8::Context> context);
void HandleException(v8::Local<v8::Context> context,
v8::Local<v8::Value> exception);
void DeserializeInternalFields(v8::Local<v8::Object> holder, int index,
v8::StartupData payload, void* data);
v8::StartupData SerializeInternalFields(v8::Local<v8::Object> holder, int index,
void* data);
v8::Local<v8::Uint8Array> ImportBuf(DenoIsolate* d, deno_buf buf);
void DeleteDataRef(DenoIsolate* d, int32_t req_id);
bool Execute(v8::Local<v8::Context> context, const char* js_filename,
const char* js_source);
bool ExecuteMod(v8::Local<v8::Context> context, const char* js_filename,
const char* js_source);
} // namespace deno
extern "C" {
// This is just to workaround the linker.
struct deno_s {
deno::DenoIsolate isolate;
};
}
#endif // INTERNAL_H_
|
