The Solidity Contract-Oriented Programming Language - By chatting here you agree to the https://github.com/ethereum/solidity/blob/develop/CODE_OF_CONDUCT.md
I'm not even sure precisely what a HelloWorld deliverable would look like.
I'm looking around for a good starting point.
Some resource that is fast-paced, but at the same time fills the gaps. I've coded a variety of domains over a number of years, and have some familiarity with blockchain concepts. I've even written code for buying/selling on pancakeswap and monitoring transactions on BNB chain, though it's a fuzzy memory.
Can anyone recommend a good starting point?
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I know there's no objective answer to 'optimal way to learn X' as the answer depends on one's background.
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Quick question, hopefully, is there a convenient way to get a function's bytes4 selector from within the currently executed function?
Note; I'm aware of an incantation similar to,
bytes4(keccak256(bytes("fnName(uint256)"))), which can get the selector for a known string. Which should function for my needs, for now. But I'd prefer to access thebytes4value of the currently executed function without having to pre-store, and repeat, a given function's signature.
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i've installed truffle,
truffle dashboard --verbose
Truffle Dashboard running at http://localhost:24012
DashboardProvider RPC endpoint running at http://localhost:24012/rpc
but on my Mac i see this error in browser console and a white screen instead of the dashboard
Uncaught Error: missing provider (argument="provider", value=undefined, code=INVALID_ARGUMENT, version=providers/5.6.8)
at t.value (index.ts:261:28)
at t.value (index.ts:273:20)
at t.value (index.ts:277:21)
at new r (web3-provider.ts:127:20)
at state.ts:25:13
at index.tsx:14:5
at index.tsx:14:5
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readonly provider: ExternalProvider;
readonly jsonRpcFetchFunc: JsonRpcFetchFunc;
constructor(provider: ExternalProvider | JsonRpcFetchFunc, network?: Networkish) {
if (provider == null) {
logger.throwArgumentError("missing provider", "provider", provider);
}
// The following does not work; it would need to create a new temporary /
// unnamed array in storage, but storage is "statically" allocated:
// y = memoryArray;
// Similarly, "delete y" is not valid, as assignments to local variables
// referencing storage objects can only be made from existing storage objects.
// It would "reset" the pointer, but there is no sensible location it could␣
˓→point to.
// For more details see the documentation of the "delete" operator.
// delete y;
y = memoryArray;
delete y;
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0x6fdde03 for "name()"), but instead it is 0x0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080000000000000000000000000000000000000000000000000000000000000000006fdde03
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If Base2 calls a function of super, it does not simply call this function on one of its base contracts. Rather, it calls
this function on the next base contract in the final inheritance graph, so it will call Base1.destroy() (note that the
final inheritance sequence is – starting with the most derived contract: Final, Base2, Base1, Destructible, owned). The
actual function that is called when using super is not known in the context of the class where it is used, although its
type is known. This is similar for ordinary virtual method lookup.
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Hi, question about the Yul optimizer:
https://docs.soliditylang.org/en/v0.8.17/yul.html# states:
there is an experimental implementation of the Solidity compiler that uses Yul as an intermediate language
My understanding is that enabling the Yul Optimizer through the viaIRflag uses this "experimental" implementation.
I would love to use that pipeline in order to avoid "stack too deep" - issues, but only if it's safe to use it in production.
Is it safe to be used in production?
viaIR is considered "production ready" since v0.813 (see release announcement)
Recently we had a PR to fix a similar bit about the abi coder pragma.
I think we may have more of these still scattered around the docs.
Oh you might have found a piece of outdated docs there!
viaIRis considered "production ready" since v0.813 (see release announcement)
oh great, thx!
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When I click Harvest on farms, which method is called?
I can't find it. please help me out.
https://github.com/pancakeswap/pancake-farm/tree/master/contracts
Hi all, sorry for the shameless plug, but I think that many of you will find this useful/ interesting.
I just shipped PRBMath V3, which to my knowledge it's the first Solidity fixed-point math library that makes use of user-defined value types at scale.
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Hey guys, I'm attempting to use the goto definition feature (introduced in 0.8.13) in coc.nvim. I'm on version 0.8.17. When I try to jump to definition, in any case, I always get [coc.nvim] definition not found.. This is my config:
"solidity": {
"command": "/home/riordant/.solc/0.8.17/solc",
"args": [ "--lsp" ],
"trace.server": "verbose",
"rootPatterns": [".git/"],
"filetypes": ["solidity"]
}any ideas?
Has anybody used radare2 evm plugin? I'm having trouble installing plugins in general due to a pkg-config error. It can't fun r_core similar issues on github but no solutions that work.
Sorry if this isn't exactly appropriate for here just thought I might ask before making a github issue.
