Questions tagged [enum]
A data type consisting of a set of named values called elements, members or enumerators of the type.
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Does Brownie support structs and enums?
Brownie is a seemingly popular framework for testing smart contracts (both solidity and vyper) in python.
I've just gotten started with brownie and my first few tests are working. However, I can't ...
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3
answers
44
views
How to access a mapping from another contract with enums
The second contract needs to check the mapping in the first contract to see if the person finished the required course. I checked a few old threads but they said it wasn't possibly with that version ...
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1
answer
219
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Encoding ENUM data type in struct for EIP712
I have a struct.
struct Order {
uint256 price;
uint256 quantity;
OrderType orderType;
}
enum OrderType {
BUY,
SELL
}
Question is, how should I ...
- 33
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I can't get API3 QRNG to select a random enum value and mint an NFT based on this enum choice
I tried to make a contract that mints a token from an enum of options https://gist.github.com/ChristianOConnor/0ae15b021521c9583dde6c3cc782d4d3. This code fails at every turn. I started with the code ...
- 361
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How to Use Subgraph Enums in the Mapping?
Subgraph documentation mentions enums but does not show how to use them in mappings.
I tried to import it from the generated schema, along with other type definitions, but compiler gives error:
...
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2
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I want to get retuen enum return value in string ...but its showing expected only uint256
{
return studentStructs [user].books[raw];
}
// Type string memory is not implicitly convertible to expected type uint256.
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5
votes
2
answers
896
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What is a function's function signature if it uses a custom type? (Stuct, enum, etc)
I have the following Enum that is an input to a function
enum Cat {
Tabby,
Rascal,
Cool
}
function hiMom(Cat myCat) public {
What is the function signature of hiMom(Cat)?
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Why am I not able to call a pure function accessing an enum from a library?
I'm working on a token-gated NFT distribution site. I've divided up the 256 bits of the token id & I'm using various parts to represent different aspects of a permissioning system.
Central to the ...
- 101
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1
answer
807
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ethers.js how to call overloaded function with enum argument
Ethers generally doesn't let you call an overloaded function like this contract.overloaded(1), but it does let you call it with a fully qualified function name like this contract["overloaded(uint)...
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Solidity return enum in library
library MyLib {
enum MyEnum {
A, B
}
function f() public pure returns (MyEnum){
return MyEnum.A;
}
}
I want to return the enum in library.
It is deployed as well, but ...
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1
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457
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Using Enum to assign a value
im new to Solidity.
I was wondering if it is possible to do something like this in Solidity using enum.
enum Menu {
Burger,
Pizza,
Fries
}
uint price; // storing different prices of different items ...
- 5
0
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1
answer
122
views
Does it make a difference using multiple setter functions vs a single generic one?
Let's say I have an enum and set the default:
enum Status {
INACTIVE,
FAIL,
SUCCESS,
PENDING
}
Status public myStatus = Status.INACTIVE;
I'm wondering if one approach to updating ...
- 123
1
vote
0
answers
17
views
How to make Enums scalable? [duplicate]
Let's say that I have a contract Games.sol containing an enum with multiple games.
enum { TicTacToe, PacMan, Chess }
This enum is currently imported from a library and I think that it's immutable, so ...
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1
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344
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How can I use a library to create a common enum and struct between two contracts?
Here is what I'm trying to do by using a common enum and struct between two contracts:
Library Code:
pragma solidity ^0.8.7;
library Library {
enum Areas {
Burrow, School, Forest, Mine, DeepMine, ...
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2
answers
664
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interacting with an enum as an interface in other contract
having this issue of using enum as interface in other contract:
will appreciate your help...
// SPDX-License-Identifier: GPL-3.0
pragma solidity 0.8.9;
interface interEnum {
enum SIDE {
...
- 195
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508
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Hardhat ethers fail to deserialise enum output of a function
I think @nomiclabs/hardhat-ethers fails to manage Enum type of output of a contract when testing it locally.
solidity version 0.8.7
hardhat version 2.6.4
Contract.sol
contract Contract {
enum E {
...
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vote
0
answers
114
views
Cannot return enum data type?
I have the below enums:
// ENUMS
enum StateType {
ItemAvailable,
OfferPlaced,
Accepted
}
And initialized the below variable State with type StateType:
...
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votes
2
answers
539
views
Can I write a function to edit an enum?
I have an enum with certain predefined data.
If at a later date, I have to add or push in more choices , can I edit the enum using some function ?
enum ActionChoices { GoLeft, GoRight, GoStraight, ...
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2
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438
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Pass enum value in mapping
I am trying to pass a default value in solidity but get the following error:
"Invalid implicit conversion from enum tlb.Category to enum tlb.Category[] memory requested"
Does anybody have an ...
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1
answer
2k
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If I pass an enum as a parameter does it get stored in the blockchain?
I'm developing a Rock/Paper/Scissors Smart Contract (with a Commit-Reveal scheme).
I have this enum: enum Move {rock, paper, scissors}
I want to pass it to a function, without storing it to the ...
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0
answers
126
views
Mapping shared between contracts
I have enums that I use in many contracts of one project. Sometimes, they need to be mapped to a uint256. Their uint256 values do not relate to their positions in the enum list, so I can't just cast ...
- 518
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What size is an enum member inside of a struct
Let's consider the following code:
pragma solidity ^0.4.18;
contract Test {
enum EnumTest {
Test0,
Test1
}
struct StructTest {
EnumTest Foo;
uint256 Bar;
}
}
Not taking ...
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3
answers
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Possible to get enum length / count in solidity contract?
Is it possible to access the length of an enum in solidity?
E.g.
pragma solidity >=0.4.16 <0.6.0;
contract test {
enum ActionChoices { GoLeft, GoRight, GoStraight, SitStill }
function ...
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