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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
11 // with the distribution. | 11 // with the distribution. |
12 // * Neither the name of Google Inc. nor the names of its | 12 // * Neither the name of Google Inc. nor the names of its |
13 // contributors may be used to endorse or promote products derived | 13 // contributors may be used to endorse or promote products derived |
14 // from this software without specific prior written permission. | 14 // from this software without specific prior written permission. |
15 // | 15 // |
16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | 27 |
| 28 // TODO(dcarney): remove this |
| 29 #define V8_ALLOW_ACCESS_TO_RAW_HANDLE_CONSTRUCTOR |
| 30 #define V8_ALLOW_ACCESS_TO_PERSISTENT_IMPLICIT |
| 31 #define V8_ALLOW_ACCESS_TO_PERSISTENT_ARROW |
| 32 |
28 #include <v8.h> | 33 #include <v8.h> |
29 #include <assert.h> | 34 #include <assert.h> |
30 #include <fcntl.h> | 35 #include <fcntl.h> |
31 #include <string.h> | 36 #include <string.h> |
32 #include <stdio.h> | 37 #include <stdio.h> |
33 #include <stdlib.h> | 38 #include <stdlib.h> |
34 | 39 |
35 #ifdef COMPRESS_STARTUP_DATA_BZ2 | 40 #ifdef COMPRESS_STARTUP_DATA_BZ2 |
36 #error Using compressed startup data is not supported for this sample | 41 #error Using compressed startup data is not supported for this sample |
37 #endif | 42 #endif |
38 | 43 |
39 /** | 44 /** |
40 * This sample program shows how to implement a simple javascript shell | 45 * This sample program shows how to implement a simple javascript shell |
41 * based on V8. This includes initializing V8 with command line options, | 46 * based on V8. This includes initializing V8 with command line options, |
42 * creating global functions, compiling and executing strings. | 47 * creating global functions, compiling and executing strings. |
43 * | 48 * |
44 * For a more sophisticated shell, consider using the debug shell D8. | 49 * For a more sophisticated shell, consider using the debug shell D8. |
45 */ | 50 */ |
46 | 51 |
47 | 52 |
48 v8::Persistent<v8::Context> CreateShellContext(); | 53 v8::Handle<v8::Context> CreateShellContext(v8::Isolate* isolate); |
49 void RunShell(v8::Handle<v8::Context> context); | 54 void RunShell(v8::Handle<v8::Context> context); |
50 int RunMain(v8::Isolate* isolate, int argc, char* argv[]); | 55 int RunMain(v8::Isolate* isolate, int argc, char* argv[]); |
51 bool ExecuteString(v8::Isolate* isolate, | 56 bool ExecuteString(v8::Isolate* isolate, |
52 v8::Handle<v8::String> source, | 57 v8::Handle<v8::String> source, |
53 v8::Handle<v8::Value> name, | 58 v8::Handle<v8::Value> name, |
54 bool print_result, | 59 bool print_result, |
55 bool report_exceptions); | 60 bool report_exceptions); |
56 v8::Handle<v8::Value> Print(const v8::Arguments& args); | 61 v8::Handle<v8::Value> Print(const v8::Arguments& args); |
57 v8::Handle<v8::Value> Read(const v8::Arguments& args); | 62 v8::Handle<v8::Value> Read(const v8::Arguments& args); |
58 v8::Handle<v8::Value> Load(const v8::Arguments& args); | 63 v8::Handle<v8::Value> Load(const v8::Arguments& args); |
59 v8::Handle<v8::Value> Quit(const v8::Arguments& args); | 64 v8::Handle<v8::Value> Quit(const v8::Arguments& args); |
60 v8::Handle<v8::Value> Version(const v8::Arguments& args); | 65 v8::Handle<v8::Value> Version(const v8::Arguments& args); |
61 v8::Handle<v8::String> ReadFile(const char* name); | 66 v8::Handle<v8::String> ReadFile(const char* name); |
62 void ReportException(v8::Isolate* isolate, v8::TryCatch* handler); | 67 void ReportException(v8::Isolate* isolate, v8::TryCatch* handler); |
63 | 68 |
64 | 69 |
65 static bool run_shell; | 70 static bool run_shell; |
66 | 71 |
67 | 72 |
68 int main(int argc, char* argv[]) { | 73 int main(int argc, char* argv[]) { |
69 v8::V8::SetFlagsFromCommandLine(&argc, argv, true); | 74 v8::V8::SetFlagsFromCommandLine(&argc, argv, true); |
70 v8::Isolate* isolate = v8::Isolate::GetCurrent(); | 75 v8::Isolate* isolate = v8::Isolate::GetCurrent(); |
71 run_shell = (argc == 1); | 76 run_shell = (argc == 1); |
72 int result; | 77 int result; |
73 { | 78 { |
74 v8::HandleScope handle_scope(isolate); | 79 v8::HandleScope handle_scope(isolate); |
75 v8::Persistent<v8::Context> context = CreateShellContext(); | 80 v8::Handle<v8::Context> context = CreateShellContext(isolate); |
76 if (context.IsEmpty()) { | 81 if (context.IsEmpty()) { |
77 fprintf(stderr, "Error creating context\n"); | 82 fprintf(stderr, "Error creating context\n"); |
78 return 1; | 83 return 1; |
79 } | 84 } |
80 context->Enter(); | 85 context->Enter(); |
81 result = RunMain(isolate, argc, argv); | 86 result = RunMain(isolate, argc, argv); |
82 if (run_shell) RunShell(context); | 87 if (run_shell) RunShell(context); |
83 context->Exit(); | 88 context->Exit(); |
84 context.Dispose(isolate); | |
85 } | 89 } |
86 v8::V8::Dispose(); | 90 v8::V8::Dispose(); |
87 return result; | 91 return result; |
88 } | 92 } |
89 | 93 |
90 | 94 |
91 // Extracts a C string from a V8 Utf8Value. | 95 // Extracts a C string from a V8 Utf8Value. |
92 const char* ToCString(const v8::String::Utf8Value& value) { | 96 const char* ToCString(const v8::String::Utf8Value& value) { |
93 return *value ? *value : "<string conversion failed>"; | 97 return *value ? *value : "<string conversion failed>"; |
94 } | 98 } |
95 | 99 |
96 | 100 |
97 // Creates a new execution environment containing the built-in | 101 // Creates a new execution environment containing the built-in |
98 // functions. | 102 // functions. |
99 v8::Persistent<v8::Context> CreateShellContext() { | 103 v8::Handle<v8::Context> CreateShellContext(v8::Isolate* isolate) { |
100 // Create a template for the global object. | 104 // Create a template for the global object. |
101 v8::Handle<v8::ObjectTemplate> global = v8::ObjectTemplate::New(); | 105 v8::Handle<v8::ObjectTemplate> global = v8::ObjectTemplate::New(); |
102 // Bind the global 'print' function to the C++ Print callback. | 106 // Bind the global 'print' function to the C++ Print callback. |
103 global->Set(v8::String::New("print"), v8::FunctionTemplate::New(Print)); | 107 global->Set(v8::String::New("print"), v8::FunctionTemplate::New(Print)); |
104 // Bind the global 'read' function to the C++ Read callback. | 108 // Bind the global 'read' function to the C++ Read callback. |
105 global->Set(v8::String::New("read"), v8::FunctionTemplate::New(Read)); | 109 global->Set(v8::String::New("read"), v8::FunctionTemplate::New(Read)); |
106 // Bind the global 'load' function to the C++ Load callback. | 110 // Bind the global 'load' function to the C++ Load callback. |
107 global->Set(v8::String::New("load"), v8::FunctionTemplate::New(Load)); | 111 global->Set(v8::String::New("load"), v8::FunctionTemplate::New(Load)); |
108 // Bind the 'quit' function | 112 // Bind the 'quit' function |
109 global->Set(v8::String::New("quit"), v8::FunctionTemplate::New(Quit)); | 113 global->Set(v8::String::New("quit"), v8::FunctionTemplate::New(Quit)); |
110 // Bind the 'version' function | 114 // Bind the 'version' function |
111 global->Set(v8::String::New("version"), v8::FunctionTemplate::New(Version)); | 115 global->Set(v8::String::New("version"), v8::FunctionTemplate::New(Version)); |
112 | 116 |
113 return v8::Context::New(NULL, global); | 117 return v8::Context::New(isolate, NULL, global); |
114 } | 118 } |
115 | 119 |
116 | 120 |
117 // The callback that is invoked by v8 whenever the JavaScript 'print' | 121 // The callback that is invoked by v8 whenever the JavaScript 'print' |
118 // function is called. Prints its arguments on stdout separated by | 122 // function is called. Prints its arguments on stdout separated by |
119 // spaces and ending with a newline. | 123 // spaces and ending with a newline. |
120 v8::Handle<v8::Value> Print(const v8::Arguments& args) { | 124 v8::Handle<v8::Value> Print(const v8::Arguments& args) { |
121 bool first = true; | 125 bool first = true; |
122 for (int i = 0; i < args.Length(); i++) { | 126 for (int i = 0; i < args.Length(); i++) { |
123 v8::HandleScope handle_scope(args.GetIsolate()); | 127 v8::HandleScope handle_scope(args.GetIsolate()); |
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343 fprintf(stderr, "^"); | 347 fprintf(stderr, "^"); |
344 } | 348 } |
345 fprintf(stderr, "\n"); | 349 fprintf(stderr, "\n"); |
346 v8::String::Utf8Value stack_trace(try_catch->StackTrace()); | 350 v8::String::Utf8Value stack_trace(try_catch->StackTrace()); |
347 if (stack_trace.length() > 0) { | 351 if (stack_trace.length() > 0) { |
348 const char* stack_trace_string = ToCString(stack_trace); | 352 const char* stack_trace_string = ToCString(stack_trace); |
349 fprintf(stderr, "%s\n", stack_trace_string); | 353 fprintf(stderr, "%s\n", stack_trace_string); |
350 } | 354 } |
351 } | 355 } |
352 } | 356 } |
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