Pure no-std eth-connector implementation

evm-fungible-token/src/lib.rs

@@ -292,10 +292,6 @@ impl EthConnector {
         self.token.storage_withdraw(amount)
     }
 
-    pub fn storage_minimum_balance(&self) -> U128 {
-        self.token.storage_minimum_balance()
-    }
-
     pub fn storage_balance_of(&self, account_id: ValidAccountId) -> AccountStorageBalance {
         self.token.storage_balance_of(account_id)
     }

pure-eth-connector/.gitignore

@@ -0,0 +1 @@
+Cargo.lock

pure-eth-connector/Cargo.toml

@@ -0,0 +1,44 @@
+[package]
+name = "pure-eth-connector"
+version = "0.1.0"
+authors = ["Near Inc <hello@near.org>"]
+edition = "2018"
+license = "Apache2"
+publish = false
+resolver = "2"
+
+[lib]
+crate-type = ["cdylib", "rlib"]
+
+[profile.dev]
+panic = "abort"
+
+[profile.release]
+codegen-units = 1
+# Tell `rustc` to optimize for small code size.
+opt-level = "z"
+lto = true
+debug = false
+panic = "abort"
+debug-assertions = false
+
+[dependencies]
+wee_alloc = { version = "0.4.5", default-features = false }
+rlp = { version = "0.5", default-features = false }
+borsh = { version = "0.8", default-features = false }
+primitive-types = { version = "0.8.0", default-features = false, features = ["rlp"] }
+hex = { version = "0.4", default-features = false, features = ["alloc"] }
+sha3 = { version = "0.8", default-features = false }
+serde = { version = "1.0", default-features = false, features=["derive", "alloc"] }
+serde_json = { version = "1.0", default-features = false, features=["alloc"] }
+ethabi = { git = "https://github.com/darwinia-network/ethabi", branch = "xavier-no-std", default-features = false }
+rjson = "0.3.1"
+
+[dev-dependencies]
+near-sdk = { git = "https://github.com/near/near-sdk-rs", tag = "3.0.0" }
+near-sdk-sim = { git = "https://github.com/near/near-sdk-rs", tag = "3.0.0" }
+funty = "=1.1.0" # temp pin of funty as 1.2.0 is API breaking
+
+[features]
+default = ["log"]
+log = []

pure-eth-connector/Makefile

@@ -0,0 +1,34 @@
+NEAR_ACC=nostd01.eth-connector.testnet
+#NEAR_ACC=dev-1616437086828-5300267
+
+build:
+	@./build.sh
+	@cp ~/dev/rs/near/eth-connector/pure-eth-connector/Makefile ~/dev/vagrant/near/ || true
+
+clippy:
+	@cargo clippy
+
+check:
+	@cargo check
+
+fmt:
+	@cargo fmt
+
+test:
+	@cargo test -- --nocapture
+
+dev-deploy:
+	@near dev-deploy -f pure_eth_connector.wasm
+
+pure-deploy:
+	@near deploy ${NEAR_ACC} pure_eth_connector.wasm
+
+balance-of:
+	@near view ${NEAR_ACC} ft_balance_of --args '{"account_id":"testlocal.testnet"}' --account-id ${NEAR_ACC}
+
+init-contract:
+	@near call ${NEAR_ACC} new '{"prover_account": "nostd01.eth-connector.testnet", "eth_custodian_address": "A0DA4462a8e18299b43BAb74F3D9D4dd73B832f3"}' --account-id ${NEAR_ACC}
+
+deposit:
+	@near call ${NEAR_ACC}  deposit 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--account-id ${NEAR_ACC} --gas 300000000000000
+

pure-eth-connector/build.sh

@@ -0,0 +1,10 @@
+#!/bin/bash
+set -e
+
+# RUSTFLAGS='-C link-arg=-s' cargo build --lib --target wasm32-unknown-unknown --no-default-features --release -Z avoid-dev-deps
+RUSTFLAGS='-C link-arg=-s' cargo build --lib --target wasm32-unknown-unknown --release -Z avoid-dev-deps
+mkdir -p res
+cp target/wasm32-unknown-unknown/release/pure_eth_connector.wasm ./res/
+
+# wasm-opt -Oz --output ./res/near_evm.wasm ./res/near_evm.wasm
+ls -lh res/

pure-eth-connector/rust-toolchain

@@ -0,0 +1 @@
+nightly-2021-01-30