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Add rate of change definition

This commit is contained in:
lash 2023-08-01 14:50:09 +01:00
parent 0fba11aeaf
commit 80671fdfaa
Signed by: lash
GPG Key ID: 21D2E7BB88C2A746
6 changed files with 145 additions and 15 deletions
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52
README.md
View File

@ -133,7 +133,7 @@ Attached to `ERC20` and `ERC721` tokens that may be *burned*.
Implements the `burn(...)` part of `ERC5679` for interoperability.
ERC165 Interface identifier
bc4babdd
b1110c1b
Solidity interface definition
interface IBurner {
@ -144,10 +144,11 @@ Solidity interface definition
function burn(address _from, uint256 _amount, bytes calldata _data) external;
// Burn given amount of tokens held by signer.
function burn(uint256 _burn) external returns (bool);
function burn(uint256 _amount) external returns (bool);
// Burn all tokens held by signer.
function burn() external returns (bool);
// Returns the amount of tokens burned.
function burn() external returns (uint256);
// Total amount of tokens that have been burned.
function totalBurned() external returns (uint256);
@ -588,6 +589,45 @@ Solidity interface definition
Example implementation
<https://git.grassecon.net/cicnet/erc20-demurrage-token.git>
### TokenRateChange
Enables detection of properties for CIC tokens that change value over
time, e.g. through demurrage.
It allows defining the granularity of the rate of change, aswell as a
frequency for which the rate of change is applied.
A method for canonical value change calculations is also provided.
ERC165 Interface identifier
b716af03
Solidity interface definition
interface ITokenChangeRate {
// Time unit resolution for rate of change.
// A value of 0 indicates no rate of change,
function changeTimeUnit() external view returns(uint256);
// Rate of change per changeTimeUnit(), signed integer.
// An effective value of 0 indicates no rate of change.
function changeRate() external view returns (int256);
// Number of decimals with which the changeRate is defined.
// changeRate() should be divided by 10 ** changeRateDecimals() to obtain effective value
function changeRateDecimals() external view returns(uint8);
// Timestamp from when rate of change should be applied.
// A value of 0 indicates no rate of change,
function changeStartTime() external view returns(uint256);
// Calculate value with change rate applied for given amount of time units.
// Will calculate compounded change over the given amount of time units
function applyChange(int256 _value, uint256 _changeTimeUnits) external view returns(int256);
}
Reference implementations
- <git://holbrook.no/erc20-demurrage-token.git>
### TokenVend
This interface defines the mechanism for which a specific ERC20 token
@ -633,7 +673,7 @@ Voted tokens **SHOULD** be locked until the voting has finalized.
Finalization of voting should be callable by anyone.
ERC165 Interface identifier
28091366
f2e0bfeb
Solidity interface definition
interface ITokenVote {
@ -655,8 +695,8 @@ Solidity interface definition
// * _blockWait blocks from now.
function propose(bytes32 _description, uint256 _blockWait, uint24 _targetVotePpm) external returns (uint256);
// Same as propose(...), but provide options to vote on.
function proposeMulti(bytes32 _description, bytes32[] memory _options, uint256 _blockWait, uint24 _targetVotePpm) external returns (uint256);
// Add a voting option to a proposal
function addOption(uint256 _proposalIdx, bytes32 _description) external;
// Get number of options available for the proposal.
// This decides the boundary of the index that can be used with voteOptions(...)

2
doc/texinfo/overview.texi
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@ -74,6 +74,8 @@ The following well-known solidity interfaces are partially implemented in CIC na
@include seal.sol.texi
@include tokenratechange.sol.texi
@include tokenvend.sol.texi
@include tokenvote.sol.texi

19
doc/texinfo/tokenratechange.sol.texi Normal file
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@ -0,0 +1,19 @@
@subsection TokenRateChange
Enables detection of properties for CIC tokens that change value over time, e.g. through demurrage.
It allows defining the granularity of the rate of change, aswell as a frequency for which the rate of change is applied.
A method for canonical value change calculations is also provided.
@table @dfn
@item ERC165 Interface identifier
@include ../../build/TokenRateChange.interface
@item Solidity interface definition
@include ../../build/contract_TokenRateChange.texi
@item Reference implementations
@itemize
@item
@uref{git://holbrook.no/erc20-demurrage-token.git,}
@end itemize
@end table

52
python/README.md
View File

@ -133,7 +133,7 @@ Attached to `ERC20` and `ERC721` tokens that may be *burned*.
Implements the `burn(...)` part of `ERC5679` for interoperability.
ERC165 Interface identifier
bc4babdd
b1110c1b
Solidity interface definition
interface IBurner {
@ -144,10 +144,11 @@ Solidity interface definition
function burn(address _from, uint256 _amount, bytes calldata _data) external;
// Burn given amount of tokens held by signer.
function burn(uint256 _burn) external returns (bool);
function burn(uint256 _amount) external returns (bool);
// Burn all tokens held by signer.
function burn() external returns (bool);
// Returns the amount of tokens burned.
function burn() external returns (uint256);
// Total amount of tokens that have been burned.
function totalBurned() external returns (uint256);
@ -588,6 +589,45 @@ Solidity interface definition
Example implementation
<https://git.grassecon.net/cicnet/erc20-demurrage-token.git>
### TokenRateChange
Enables detection of properties for CIC tokens that change value over
time, e.g. through demurrage.
It allows defining the granularity of the rate of change, aswell as a
frequency for which the rate of change is applied.
A method for canonical value change calculations is also provided.
ERC165 Interface identifier
b716af03
Solidity interface definition
interface ITokenChangeRate {
// Time unit resolution for rate of change.
// A value of 0 indicates no rate of change,
function changeTimeUnit() external view returns(uint256);
// Rate of change per changeTimeUnit(), signed integer.
// An effective value of 0 indicates no rate of change.
function changeRate() external view returns (int256);
// Number of decimals with which the changeRate is defined.
// changeRate() should be divided by 10 ** changeRateDecimals() to obtain effective value
function changeRateDecimals() external view returns(uint8);
// Timestamp from when rate of change should be applied.
// A value of 0 indicates no rate of change,
function changeStartTime() external view returns(uint256);
// Calculate value with change rate applied for given amount of time units.
// Will calculate compounded change over the given amount of time units
function applyChange(int256 _value, uint256 _changeTimeUnits) external view returns(int256);
}
Reference implementations
- <git://holbrook.no/erc20-demurrage-token.git>
### TokenVend
This interface defines the mechanism for which a specific ERC20 token
@ -633,7 +673,7 @@ Voted tokens **SHOULD** be locked until the voting has finalized.
Finalization of voting should be callable by anyone.
ERC165 Interface identifier
28091366
f2e0bfeb
Solidity interface definition
interface ITokenVote {
@ -655,8 +695,8 @@ Solidity interface definition
// * _blockWait blocks from now.
function propose(bytes32 _description, uint256 _blockWait, uint24 _targetVotePpm) external returns (uint256);
// Same as propose(...), but provide options to vote on.
function proposeMulti(bytes32 _description, bytes32[] memory _options, uint256 _blockWait, uint24 _targetVotePpm) external returns (uint256);
// Add a voting option to a proposal
function addOption(uint256 _proposalIdx, bytes32 _description) external;
// Get number of options available for the proposal.
// This decides the boundary of the index that can be used with voteOptions(...)

29
solidity/TokenRateChange.sol Normal file
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@ -0,0 +1,29 @@
pragma solidity >=0.6.12;
// Author: Louis Holbrook <dev@holbrook.no> 0826EDA1702D1E87C6E2875121D2E7BB88C2A746
// SPDX-License-Identifier: AGPL-3.0-or-later
// File-version: 1
// Methods to detect tokens that are subject to continuous change, and
interface ITokenChangeRate {
// Time unit resolution for rate of change.
// A value of 0 indicates no rate of change,
function changeTimeUnit() external view returns(uint256);
// Rate of change per changeTimeUnit(), signed integer.
// An effective value of 0 indicates no rate of change.
function changeRate() external view returns (int256);
// Number of decimals with which the changeRate is defined.
// changeRate() should be divided by 10 ** changeRateDecimals() to obtain effective value
function changeRateDecimals() external view returns(uint8);
// Timestamp from when rate of change should be applied.
// A value of 0 indicates no rate of change,
function changeStartTime() external view returns(uint256);
// Calculate value with change rate applied for given amount of time units.
// Will calculate compounded change over the given amount of time units
function applyChange(int256 _value, uint256 _changeTimeUnits) external view returns(int256);
}

6
solidity/TokenVote.sol
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@ -2,7 +2,7 @@ pragma solidity >=0.6.12;
// Author: Louis Holbrook <dev@holbrook.no> 0826EDA1702D1E87C6E2875121D2E7BB88C2A746
// SPDX-License-Identifier: AGPL-3.0-or-later
// File-version: 1
// File-version: 2
interface ITokenVote {
@ -24,8 +24,8 @@ interface ITokenVote {
// * _blockWait blocks from now.
function propose(bytes32 _description, uint256 _blockWait, uint24 _targetVotePpm) external returns (uint256);
// Same as propose(...), but provide options to vote on.
function proposeMulti(bytes32 _description, bytes32[] memory _options, uint256 _blockWait, uint24 _targetVotePpm) external returns (uint256);
// Add a voting option to a proposal
function addOption(uint256 _proposalIdx, bytes32 _description) external;
// Get number of options available for the proposal.
// This decides the boundary of the index that can be used with voteOptions(...)