Notes

tags: Solana, Solana 101: 1. Develop Model Account: a Memory region The solana term for a memory region is “account”. Some programs own thousands of independent accounts. Programs own accounts, aka the owner of accounts. Transactions and Accounts You can make a program read and write data by sending transactions. Programs provide endpoints that can be called via transactions (In reality it’s a bit more complex than that but frameworks like Anchor abstract away this complexity). A function signature usually takes the following arguments: ...

tags: Solana, Solana 101: 1. Develop Model Program Owns Accounts And each memory region has a program that manages it (sometimes called the “owner”). How to Communicate with Solana Programs? Off-chain This means your programs aren’t on-chain program, you can submit transactions with instructions to the network, it could be done via the JSON RPC API or any SDK built on top this API. On-chain TODO

tags: Rust source: Johnston, Dylan R. “Formally Verifying Rust’s Opaque Types,” August 1, 2022. https://dylanj.xyz/posts/rust-coq-opaque-types/. Prelude trait ToString { fn to_string(&self) -> String; } Static Dispatch fn yell<S: ToString>(stringable: S) { println!(stringable.to_string().to_uppercase()) } Dynamic Dispatch fn yell(stringable: &dyn ToString) { println!(stringable.to_string().to_uppercase()) } impl Trait fn yell(stringable: impl ToString) { println!(stringable.to_string().to_uppercase()) }

tags: Flutter,GUI,macOS souce: https://github.com/flutter/flutter/issues/73122 To solve this problem we should specify MACOSX_DEPLOYMENT_TARGET： I would imagine that there is Apple documentation on managing build settings in Xcode, but I don’t have a link offhand. There’s no Flutter-specific documentation of the process, if that’s what you mean; it isn’t any different in a Flutter macOS application as it would be any other macOS application. If you don’t want to use Xcode, you can change MACOSX_DEPLOYMENT_TARGET directly in Runner.xcodeproj/project.pbxproj. ...

macOS Press Command + Shift + Control + D to enter debug mod. Then you can open url in brower: Help -> Debug -> 「浏览器 webview 相关-系统浏览器打开网页」