The crate produce very big binary size

[RCasatta]

Just wanted to report that in a downstream lib elements-miniscript is the biggest contributor in binary size, maybe because it uses a lot of generics:

$ cargo bloat --release --crates
 File  .text     Size Crate
 9.6%  29.9%   1.9MiB elements_miniscript
 6.7%  21.0%   1.3MiB wollet
 4.2%  12.9% 833.4KiB std
 1.9%   6.0% 388.4KiB elements
 1.8%   5.7% 365.4KiB serde_cbor
 1.6%   5.1% 328.8KiB [Unknown]
 1.3%   4.1% 266.4KiB rustls
 0.9%   2.9% 185.3KiB ring
 0.7%   2.1% 138.5KiB electrum_client
 0.4%   1.2%  78.0KiB simplicity
 0.3%   1.0%  65.9KiB serde_json
 0.3%   1.0%  64.2KiB bitcoin_hashes
 0.3%   0.8%  53.0KiB signer
 0.2%   0.7%  43.7KiB bitcoin
 0.1%   0.4%  26.9KiB uniffi_core
 0.1%   0.4%  26.1KiB secp256k1_sys
 0.1%   0.4%  25.0KiB miniscript
 0.1%   0.4%  24.7KiB ks_bindings
 0.1%   0.3%  19.3KiB secp256k1_zkp_sys
 0.1%   0.3%  17.2KiB bip39
 0.6%   2.0% 129.8KiB And 41 more crates. Use -n N to show more.
32.2% 100.0%   6.3MiB .text section size, the file size is 19.6MiB

$ cargo bloat --release -n 10
 File  .text    Size               Crate Name
 0.2%   0.7% 45.6KiB elements_miniscript elements_miniscript::miniscript::decode::parse
 0.2%   0.7% 44.7KiB elements_miniscript elements_miniscript::miniscript::decode::parse
 0.2%   0.7% 44.7KiB elements_miniscript elements_miniscript::miniscript::decode::parse
 0.2%   0.7% 44.2KiB elements_miniscript elements_miniscript::miniscript::decode::parse
 0.2%   0.7% 43.2KiB elements_miniscript elements_miniscript::miniscript::decode::parse
 0.2%   0.7% 43.2KiB elements_miniscript elements_miniscript::miniscript::decode::parse
 0.2%   0.7% 42.7KiB elements_miniscript elements_miniscript::miniscript::decode::parse
 0.2%   0.5% 32.4KiB              wollet wollet::clients::BlockchainBackend::full_scan
 0.2%   0.5% 32.2KiB elements_miniscript elements_miniscript::descriptor::csfs_cov::cov::Le...
 0.1%   0.4% 22.9KiB            elements <elements::transaction::Transaction as elements::e...
29.8%  92.4%  5.8MiB                     And 11982 smaller methods. Use -n N to show more.
32.2% 100.0%  6.3MiB                     .text section size, the file size is 19.6MiB

[apoelstra]

Thanks for the heads up. Let's investigate this. miniscript uses a comparable amount of generics and doesn't have nearly as much bloat.

[RCasatta]

Maybe related rust-bitcoin/rust-miniscript#585