Contract Framework

Sewup is one of Rust contract frameworks, there are also others in different domain. Here is the summary help you know the different.

\	Sewup	Ink!	Solana
Blockchain Ecosystem	Ethereum based	Substrate based	Solana base
Binary format	eWASM	WASM	eBPF
Low level api	ethereum_api	seal0	BPF helper calls
Executor	Ewasm runtime	Wasmtime VM	Kernel mode service
----------------------	---------------------	-----------------	--------------------------------
build tool	cargo-sewup	cargo-contract	cargo-builbpf
test environment	Test runtime i	Native ii	Solana Runtime
Develope environment	Linux/Windows iii	Linux/Windows	Linux
----------------------	---------------------	-----------------	--------------------------------
client tools	web3.js iv/ None	polkadot.js	JSON PRC API SDK (Rust/JS SDK)

1. Test runtime is based on Wasmedge(SSVM) 6.3.1
1. Test does not realy running environment on chain, only for bussiness logic testing.
1. Windows possible after upgrade wasmedge, and the test runtime can work on windows.
1. token feature is supported, and need to provide abi_json and parsing correctly.

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