From 122867c45c7f41b82a550a9665d34b7dda1c3ffa Mon Sep 17 00:00:00 2001 From: David Baker Date: Fri, 21 Sep 2018 16:01:51 +0100 Subject: WebAssembly support! Quite a lot going on in this PR: * Updates to support recent emscripten, switching to WASM which is now the default * Use emscripten's MODULARIZE option rather than wrapping it ourself, since doing so in pre-post js doesn't work anymore. * Most changes are moving the emscripten runtime functions to top-level calls rather than in the Module object. * Get rid of duplicated NULL_BYTE_PADDING_LENGTH * Fix ciphertext_length used without being declared * Fix things that caused the closure compiler to error, eg. using OLM_OPTIONS without a declaration. * Wait until module is inited to do OLM_ERROR = olm_error() The main BREAKING CHANGE here is that the module now needs to initialise asyncronously (because it has to load the wasm file). require()ing olm now gives a function which needs to be called to create an instance. The resulting object has a promise-like then() method that can be used to detect when the module is ready. (We could use MODULARIZE_INSTANCE to return the module directly as before, rather than the function, but then we don't get the .then() method). --- javascript/test/megolm.spec.js | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'javascript/test/megolm.spec.js') diff --git a/javascript/test/megolm.spec.js b/javascript/test/megolm.spec.js index 8f9d24a..9d5eb72 100644 --- a/javascript/test/megolm.spec.js +++ b/javascript/test/megolm.spec.js @@ -16,12 +16,15 @@ limitations under the License. "use strict"; -var Olm = require('../olm'); +var Olm = require('../olm')(); describe("megolm", function() { var aliceSession, bobSession; - beforeEach(function() { + beforeEach(function(done) { + Olm.then(function() { + done(); + }); aliceSession = new Olm.OutboundGroupSession(); bobSession = new Olm.InboundGroupSession(); }); -- cgit v1.2.3 From 263b94428a24caaa5b899ed7f73b896620e6cdf4 Mon Sep 17 00:00:00 2001 From: David Baker Date: Tue, 25 Sep 2018 17:13:29 +0100 Subject: Another day, another interface Change the interface again, hopefully this time a bit more normal. Now we wrap the emscripten module completely and just expose the high level objects. The olm library export is now imported as normal (ie. returns a module rather than a function returning a module) but has an `init` method which *must* be called. This returns a promise which resolves when the module is ready. It also rejects if the module failed to set up, unlike before (and unlike the promise-not-a-promise that emscripten returns). Generally catch failures to init the module. --- javascript/test/megolm.spec.js | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) (limited to 'javascript/test/megolm.spec.js') diff --git a/javascript/test/megolm.spec.js b/javascript/test/megolm.spec.js index 9d5eb72..241d4bd 100644 --- a/javascript/test/megolm.spec.js +++ b/javascript/test/megolm.spec.js @@ -1,5 +1,6 @@ /* Copyright 2016 OpenMarket Ltd +Copyright 2018 New Vector Ltd Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. @@ -16,17 +17,18 @@ limitations under the License. "use strict"; -var Olm = require('../olm')(); +var Olm = require('../olm'); describe("megolm", function() { var aliceSession, bobSession; beforeEach(function(done) { - Olm.then(function() { + Olm.init().then(function() { + aliceSession = new Olm.OutboundGroupSession(); + bobSession = new Olm.InboundGroupSession(); + done(); }); - aliceSession = new Olm.OutboundGroupSession(); - bobSession = new Olm.InboundGroupSession(); }); afterEach(function() { -- cgit v1.2.3