adding crowd fund example to sbe #41
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GreatSoshiant
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hkalodner,
chrisco512,
mahsamoosavi,
TucksonDev and
Jason-W123
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chrisco512
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Sep 16, 2024
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Are these .cargo files still necessary?
| sol_interface! { | ||
| interface IERC20 { | ||
| function transfer(address, uint256) external returns (bool); | ||
| function transferFrom(address, address, uint256) external returns (bool); |
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indent these 2 functions
| // Mapping from id to Campaign | ||
| CampaignStruct[] campaigns; // The transactions array | ||
| // Mapping from campaign id => pledger => amount pledged | ||
| mapping(uint256 => mapping(address => uint256)) pledged_amount; |
| pub fn launch(&mut self, goal: U256, start_at: U256, end_at: U256) { | ||
| assert!(start_at < U256::from(block::timestamp())); | ||
| assert!(end_at < start_at); | ||
| assert!(end_at > U256::from(block::timestamp() + 7 * Self::ONE_DAY)); |
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These Rust-native assertions add to code bloat, iirc. I don't think we should be recommending their usage except in off-chain testing scripts. Just use if or match statements. (you can also try commenting out all assertions to see if it makes an appreciable difference in code size / execution gas)
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Adding Crowd Fund example to the Stylus by Example Repo.
Closes STY-117