If you look at the source of gin::V8ToString, you will see that it only handles string arguments. Try output[request.host] = "1", or consider using a map<std::string, int>, or change your implementation to perform number-to-string conversions as needed.
On Fri, Jun 30, 2017 at 10:38 PM, wxz <xzwang2...@gmail.com> wrote: > Thanks for the explanation, but it's still blur to me. I'm trying to wrap > those two maps into an interceptor class. Please see the attached. It > works for lines such as: > if (option.verbose) > > but it fails on lines: > output[request.host] = 1; > > The script runs, but the final output is: > google.com: > google.net: > google.org: > yahoo.com: > > Instead, the correct result should be: > google.com: 1 > google.net: 1 > google.org: 1 > yahoo.com: 3 > > On Friday, June 30, 2017 at 11:21:11 AM UTC-4, Jakob Kummerow wrote: >> >> There are no conversions happening. In the script, "output" is a regular >> JavaScript object, with all the behavior you would expect. >> >> On the C++ side, "output" is a map<string, string>, but "output_obj" is >> a JavaScript object created from that map (via the WrapMap(output) >> call), and that's what's exposed to the script. >> >> >> On Fri, Jun 30, 2017 at 3:31 PM, wxz <xzwan...@gmail.com> wrote: >> >>> a follow up question, in the script, the 'output' map is used as >>> map<string, int>: >>> >>> output[request.host] = 1; >>> output[request.host]++ >>> >>> however, it's a map<string, string> in c++ side, which part of the c++ >>> code handles such conversion? >>> >>> >>> On Thursday, June 29, 2017 at 5:07:20 PM UTC-4, Jakob Kummerow wrote: >>> >>>> The equivalent of options.verbose is options["verbose"] (note the >>>> quotes). Does that help? >>>> >>>> On Thu, Jun 29, 2017 at 10:07 PM, wxz <xzwan...@gmail.com> wrote: >>>> >>>>> hi all, >>>>> >>>>> there are two maps used in this example, one for 'options', one for >>>>> 'output'. My question is, why is that in the script, the brackets [] works >>>>> for 'output', but not for 'options'? >>>>> >>>>> For example, if change the line: >>>>> options.verbose ===> options[verbose] >>>>> it returns error: verbose is not defined >>>>> >>>>> However, 'output[request.host]' is perfectly fine. >>>>> >>>>> The two maps are installed with the same code, the wrap/unwrap are the >>>>> same, what's the difference? >>>>> >>>>> I guess my confusion is what exactly does bracket mean here? Does it >>>>> invoke the named property interceptor? >>>>> >>>>> -- >>>>> -- >>>>> v8-users mailing list >>>>> v8-u...@googlegroups.com >>>>> http://groups.google.com/group/v8-users >>>>> --- >>>>> You received this message because you are subscribed to the Google >>>>> Groups "v8-users" group. >>>>> To unsubscribe from this group and stop receiving emails from it, send >>>>> an email to v8-users+u...@googlegroups.com. >>>>> For more options, visit https://groups.google.com/d/optout. >>>>> >>>> > -- -- v8-users mailing list v8-users@googlegroups.com http://groups.google.com/group/v8-users --- You received this message because you are subscribed to the Google Groups "v8-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to v8-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
