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authorDavid Baker <dave@matrix.org>2018-09-21 16:01:51 +0100
committerDavid Baker <dave@matrix.org>2018-09-21 16:01:51 +0100
commit122867c45c7f41b82a550a9665d34b7dda1c3ffa (patch)
tree258bcabe939d5cc4275b71ac8d958767835a047d /CONTRIBUTING.rst
parented02c217e6f7e95e495c241c8ff27ef6b5dd8417 (diff)
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).
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