Because both Chrome and V8 switched to a new build system since the blog post. Take a look at v8/BUILD.gn.
Cheers, Yang On Tue, Apr 11, 2017, 05:16 <[email protected]> wrote: > Hello, > i want to add custom javascript function to V8,i see that:[ > https://v8project.blogspot.co.id/2016/02/v8-extras.html] > > Vec2.js > > (function(global, binding, v8) { > 'use strict'; > const Object = global.Object; > const x = v8.createPrivateSymbol('x'); > const y = v8.createPrivateSymbol('y'); > > class Vec2 { > constructor(theX, theY) { > this[x] = theX; > this[y] = theY; > } > > norm() { > return binding.computeNorm(this[x], this[y]); > } > } > > Object.defineProperty(global, 'Vec2', { > value: Vec2, > enumerable: false, > configurable: true, > writable: true > }); > > binding.Vec2 = Vec2; > }); > > > > > i cp Vec2.js to $chromium_src_dir/v8/src/js/ > > and edit $chromium_src_dir/v8/src/v8.gyp ,add the line > 'v8_extra_library_files': > ['js/Vec2.js',],like below: > > { > 'variables': { > 'v8_code': 1, > 'v8_random_seed%': 314159265, > 'v8_vector_stores%': 0, > 'embed_script%': "", > 'warmup_script%': "", > 'v8_extra_library_files': ['js/Vec2.js',], > 'v8_experimental_extra_library_files%': [], > 'v8_enable_inspector%': 1, > 'mksnapshot_exec': > '<(PRODUCT_DIR)/<(EXECUTABLE_PREFIX)mksnapshot<(EXECUTABLE_SUFFIX)', > 'mkpeephole_exec': > '<(PRODUCT_DIR)/<(EXECUTABLE_PREFIX)mkpeephole<(EXECUTABLE_SUFFIX)', > 'v8_os_page_size%': 0, > }, > } > > then,i built the chrome_public.apk ,run the test javascript page , > <html> > <head> > <title>test</title> > </head> > <body> > <script text='javascript'>document.write(typeof(Vec2));</script> > </body> > </html> > > it's show undefined.it's no work ,Does anyone know why？ > > -- > -- > v8-dev mailing list > [email protected] > http://groups.google.com/group/v8-dev > --- > You received this message because you are subscribed to the Google Groups > "v8-dev" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- -- v8-dev mailing list [email protected] http://groups.google.com/group/v8-dev --- You received this message because you are subscribed to the Google Groups "v8-dev" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
