Nitro created THRIFT-4570:
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Summary: New TypeScript generator optimized for size
Key: THRIFT-4570
URL: https://issues.apache.org/jira/browse/THRIFT-4570
Project: Thrift
Issue Type: Improvement
Components: Compiler (General), TypeScript - Library
Reporter: Nitro
I propose to add a new compiler generating native typescript code with the
following goals:
* Using promise only
* Reducing the generated code to the minimum
* Fully typed code to avoid misuse of generated code
* Initially geared toward web-browser usage and not nodejs
My understanding is that the usual generator flow is not ideal for javascript
because:
* The advantage of using a streaming parser is lost (cf. initial JSON.parse)
* It's not clear if we gain much by doing a streaming write vs. a
JSON.stringify
* The usual transports available (xhr, websocket) don't mix well with streaming
* The 'speed first' focus is not the first concern I encountered using thrift
in a browser environment. I am usually more concerned by final code bundle size
than the speed at which the messages are serialized.
So I wrote a prototype which produce quite different kind of code compared to
the js generator and the results are interesting. On a set of existing thrift
interfaces, here are the difference in size (fully compressed/minified and
including respective libraries):
* Using standard js generator: 484 Kb
* Using my prototype ts generator: 184 Kb
It's around a 1:2.5 ratio. Some files have up to a 1:5 ratio.
But there is no magic. There is of course a potential performance penalty doing
so, which should be fully evaluated. Also the code need to be tested and
further optimized. It's still a bit rough at this stage.
I'll open a pull request if there is interest in this direction.
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