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1
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2
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3 /* Include the JSAPI header file to get access to SpiderMonkey. */
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4 #include "jsapi.h"
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5
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6 /* The class of the global object. */
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7 static JSClass global_class = {
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8 "global", JSCLASS_GLOBAL_FLAGS,
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9 JS_PropertyStub, JS_PropertyStub, JS_PropertyStub, JS_StrictPropertyStub,
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10 JS_EnumerateStub, JS_ResolveStub, JS_ConvertStub, JS_FinalizeStub,
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11 JSCLASS_NO_OPTIONAL_MEMBERS
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12 };
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13
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14 /* The error reporter callback. */
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15 void reportError(JSContext *cx, const char *message, JSErrorReport *report)
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16 {
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17 fprintf(stderr, "%s:%u:%s\n",
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18 report->filename ? report->filename : "<no filename=\"filename\">",
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19 (unsigned int) report->lineno,
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20 message);
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21 }
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22
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23 int main(int argc, const char *argv[])
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24 {
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25 /* JSAPI variables. */
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26 JSRuntime *rt;
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27 JSContext *cx;
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28 JSObject *global;
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29
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30 /* Create a JS runtime. You always need at least one runtime per process. */
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31 rt = JS_NewRuntime(8 * 1024 * 1024);
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32 if (rt == NULL)
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33 return 1;
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34
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35 /*
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36 * Create a context. You always need a context per thread.
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37 * Note that this program is not multi-threaded.
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38 */
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39 cx = JS_NewContext(rt, 8192);
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40 if (cx == NULL)
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41 return 1;
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42 JS_SetOptions(cx, JSOPTION_VAROBJFIX | JSOPTION_JIT | JSOPTION_METHODJIT);
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43 JS_SetVersion(cx, JSVERSION_LATEST);
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44 JS_SetErrorReporter(cx, reportError);
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45
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46 /*
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47 * Create the global object in a new compartment.
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48 * You always need a global object per context.
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49 */
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50 global = JS_NewCompartmentAndGlobalObject(cx, &global_class, NULL);
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51 if (global == NULL)
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52 return 1;
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53
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54 /*
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55 * Populate the global object with the standard JavaScript
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56 * function and object classes, such as Object, Array, Date.
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57 */
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58 if (!JS_InitStandardClasses(cx, global))
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59 return 1;
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60
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61 /* Your application code here. This may include JSAPI calls
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62 * to create your own custom JavaScript objects and to run scripts.
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63 *
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64 * The following example code creates a literal JavaScript script,
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65 * evaluates it, and prints the result to stdout.
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66 *
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67 * Errors are conventionally saved in a JSBool variable named ok.
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68 */
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69 const char *script = "'Hello ' + 'World!'";
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70 jsval rval;
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71 JSString *str;
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72 JSBool ok;
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73 const char *filename = "noname";
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74 uintN lineno = 0;
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75
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76 ok = JS_EvaluateScript(cx, global, script, strlen(script),
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77 filename, lineno, &rval);
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78 if ( rval == JS_FALSE)//rval == JS_NULL |
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79 return 1;
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80
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81 str = JS_ValueToString(cx, rval);
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82 printf("%s\n", JS_EncodeString(cx, str));
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83
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84 /* End of your application code */
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85
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86 /* Clean things up and shut down SpiderMonkey. */
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87 JS_DestroyContext(cx);
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88 JS_DestroyRuntime(rt);
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89 JS_ShutDown();
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90 return 0;
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91 }
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