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Bug 549971 - Add compile() function to JS shell. r=jorendorff.

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This commit is contained in:
Chris Leary 2010-03-05 16:42:06 -06:00
parent bfaa2dc218
commit 82a9895df9
1 changed files with 28 additions and 0 deletions
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28
js/src/shell/js.cpp
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@ -3635,6 +3635,32 @@ MakeAbsolutePathname(JSContext *cx, const char *from, const char *leaf)
#endif // XP_UNIX
static JSBool
Compile(JSContext *cx, uintN argc, jsval *vp)
{
if (argc < 1) {
JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL, JSMSG_MORE_ARGS_NEEDED,
"compile", "0", "s");
return JS_FALSE;
}
jsval arg0 = JS_ARGV(cx, vp)[0];
if (!JSVAL_IS_STRING(arg0)) {
const char *typeName = JS_GetTypeName(cx, JS_TypeOfValue(cx, arg0));
JS_ReportError(cx, "expected string to compile, got %s", typeName);
return JS_FALSE;
}
JSString *scriptContents = JSVAL_TO_STRING(arg0);
JSScript *result = JS_CompileUCScript(cx, NULL, JS_GetStringCharsZ(cx, scriptContents),
JS_GetStringLength(scriptContents), "<string>", 0);
if (!result)
return JS_FALSE;
JS_DestroyScript(cx, result);
JS_SET_RVAL(cx, vp, JSVAL_VOID);
return JS_TRUE;
}
static JSBool
Snarf(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
@ -3786,6 +3812,7 @@ static JSFunctionSpec shell_functions[] = {
JS_FN("scatter", Scatter, 1,0),
#endif
JS_FS("snarf", Snarf, 0,0,0),
JS_FN("compile", Compile, 1,0),
JS_FN("timeout", Timeout, 1,0),
JS_FN("elapsed", Elapsed, 0,0),
JS_FS_END
@ -3888,6 +3915,7 @@ static const char *const shell_help_messages[] = {
"scatter(fns) Call functions concurrently (ignoring errors)",
#endif
"snarf(filename) Read filename into returned string",
"compile(code) Parses a string, potentially throwing",
"timeout([seconds])\n"
" Get/Set the limit in seconds for the execution time for the current context.\n"
" A negative value (default) means that the execution time is unlimited.",