js-stellar-base xdr files don't work

[matinkaboli]

Describe the bug

Hi, I'm trying to use this package to generate rust files from https://github.com/stellar/js-stellar-base but it crashes while doing so.
The error output is:

thread 'main' panicked at 'unsuccessful parse: Error { variant: ParsingError { positives: [], negatives: [TYPE] }, location: Pos(344), line_col: Pos((10, 57)), path: None, line: "union LiquidityPoolParameters switch (LiquidityPoolType type)␊", continued_line: None }', src/ast/mod.rs:375:10

XDR files are in xdr/ folder of the JS Stellar base repo

Steps to reproduce the behavior:

I used cargo run xdr/Stellar-transaction.x --language rust, I also used other files and xdr/* to select all files but the result is the same.

Expected behavior

I want to generate rust files from stellar-base xdr files.

I'm using:

cargo 1.59.0 (49d8809dc 2022-02-10)
rustc 1.59.0 (9d1b2106e 2022-02-23)
Linux 5.13.0-51-generic #58~20.04.1-Ubuntu Tue Jun 14 11:29:12 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux

[jeff1010322]

Hi, thanks for the issue report. It looks like initially the problem is a slight naming difference in the stellar union definitions. The lowercase type is a reserved keyword for our grammar so the parse fails on the Union definitions that use this. We use the uppercase Type for the Union switch.

For example:

union ActionCategory switch (ActionCategoryType Type)