SavingsXDai
Gnosis ERC-20 Token0xaf204776c7245bf4147c2612bf6e5972ee483701
Solidity v0.8.21+commit.d9974bed
Fungible token following the ERC-20 standard.
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引用：
0xaf204776c7245bf4147c2612bf6e5972ee483701
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mcp.smarts.md
Gnosis 在 Smarts 上是仅文档链：源代码和 ABI 已索引，但当前不提供实时链上数据（状态、最新事件、管理员画像）。AI 代理仍可通过 MCP 调用 get_contract_info 和 get_contract_source。
概览
读取函数
25
写入函数
11
事件
5
读取函数
DOMAIN_SEPARATOR()
view
Returns the contract's EIP-712 DOMAIN_SEPARATOR used when signing and verifying typed data.✨ AI
返回值
| 名称 | 类型 | 描述 |
|---|---|---|
| — | bytes32 | A bytes32 EIP-712 domain separator used for constructing and verifying off-chain signatures.✨ AI |
PERMIT_TYPEHASH()
view
Return the EIP-2612 permit type hash used to verify off-chain approvals.✨ AI
返回值
| 名称 | 类型 | 描述 |
|---|---|---|
| — | bytes32 | Permit type hash (bytes32) used to construct and verify EIP-2612 permit signatures.✨ AI |
VERSION()
view
Returns the contract's version string.✨ AI
返回值
| 名称 | 类型 | 描述 |
|---|---|---|
| — | string | The contract version string (human-readable identifier).✨ AI |
allowance(owner: address, spender: address)
view
Returns the remaining token allowance that owner granted to spender.✨ AI
开发者： See {IERC20-allowance}.
参数
| 名称 | 类型 | 描述 |
|---|---|---|
| owner | address | Address that granted the allowance.✨ AI |
| spender | address | Address allowed to spend tokens on owner's behalf.✨ AI |
返回值
| 名称 | 类型 | 描述 |
|---|---|---|
| — | uint256 | Remaining number of tokens spender is allowed to transfer from owner, expressed as a uint256.✨ AI |
asset()
view
Returns the ERC-20 token address used as the contract's underlying asset.✨ AI
开发者： See {IERC4626-asset}.
返回值
| 名称 | 类型 | 描述 |
|---|---|---|
| — | address | The address of the underlying ERC-20 asset token contract.✨ AI |
balanceOf(account: address)
view
Returns the token balance for the given account.✨ AI
开发者： See {IERC20-balanceOf}.
参数
| 名称 | 类型 | 描述 |
|---|---|---|
| account | address | Address whose token balance will be retrieved.✨ AI |
返回值
| 名称 | 类型 | 描述 |
|---|---|---|
| — | uint256 | The account's token balance represented as a uint256.✨ AI |
convertToAssets(shares: uint256)
view
Convert a share amount to the equivalent amount of underlying assets.✨ AI
开发者： See {IERC4626-convertToAssets}.
参数
| 名称 | 类型 | 描述 |
|---|---|---|
| shares | uint256 | Number of vault shares to convert to assets.✨ AI |
返回值
| 名称 | 类型 | 描述 |
|---|---|---|
| — | uint256 | Equivalent amount of underlying assets for the provided shares.✨ AI |
convertToShares(assets: uint256)
view
Convert a given amount of underlying assets into the equivalent number of vault shares.✨ AI
开发者： See {IERC4626-convertToShares}.
参数
| 名称 | 类型 | 描述 |
|---|---|---|
| assets | uint256 | Amount of underlying asset tokens to convert into shares.✨ AI |
返回值
| 名称 | 类型 | 描述 |
|---|---|---|
| — | uint256 | Number of shares corresponding to the provided assets at the current conversion rate.✨ AI |
decimals()
view
Returns the token's number of decimal places.✨ AI
开发者： Decimals are computed by adding the decimal offset on top of the underlying asset's decimals. This "original" value is cached during construction of the vault contract. If this read operation fails (e.g., the asset has not been created yet), a default of 18 is used to represent the underlying asset's decimals. See {IERC20Metadata-decimals}.
返回值
| 名称 | 类型 | 描述 |
|---|---|---|
| — | uint8 | Number of decimals used by the token (uint8).✨ AI |
deploymentChainId()
view
Return the chain ID where the contract was deployed.✨ AI
返回值
| 名称 | 类型 | 描述 |
|---|---|---|
| — | uint256 | The chain ID (uint256) of the network where the contract was deployed.✨ AI |
eip712Domain()
view
Returns the contract's EIP-712 domain fields used to create typed-data signatures.✨ AI
开发者： See {IERC-5267}.
返回值
| 名称 | 类型 | 描述 |
|---|---|---|
| fields | bytes1 | Leading EIP-712 domain prefix byte (commonly 0x19 or 0x01).✨ AI |
| name | string | Human-readable domain name used for EIP-712 signing (usually the token or protocol name).✨ AI |
| version | string | Domain version string used for EIP-712 domain separation.✨ AI |
| chainId | uint256 | Chain ID (EIP-155 style) that the domain binds signatures to.✨ AI |
| verifyingContract | address | Address of the verifying contract included in the domain.✨ AI |
| salt | bytes32 | 32-byte salt used as an additional domain separator value.✨ AI |
| extensions | uint256[] | Array of uint256 extension values included in the domain for protocol-specific data.✨ AI |
maxDeposit(address)
view
Returns the maximum amount of tokens the specified address can deposit into the contract.✨ AI
开发者： See {IERC4626-maxDeposit}.
参数
| 名称 | 类型 | 描述 |
|---|---|---|
| — | address |
返回值
| 名称 | 类型 | 描述 |
|---|---|---|
| — | uint256 | Maximum deposit amount the account may provide, expressed in the token's smallest unit (uint256).✨ AI |
maxMint(address)
view
Return the maximum amount of tokens the given address can mint right now.✨ AI
开发者： See {IERC4626-maxMint}.
参数
| 名称 | 类型 | 描述 |
|---|---|---|
| — | address |
返回值
| 名称 | 类型 | 描述 |
|---|---|---|
| — | uint256 | Maximum amount of tokens the address may mint under the current contract state, in the token's smallest unit.✨ AI |
maxRedeem(owner: address)
view
Return the maximum amount of tokens the owner can redeem.✨ AI
开发者： See {IERC4626-maxRedeem}.
参数
| 名称 | 类型 | 描述 |
|---|---|---|
| owner | address | Address to query for the owner's maximum redeemable token amount.✨ AI |
返回值
| 名称 | 类型 | 描述 |
|---|---|---|
| — | uint256 | Maximum redeemable token amount for the specified owner, in token units (uint256).✨ AI |
maxWithdraw(owner: address)
view
Returns the maximum amount of tokens the given owner can withdraw.✨ AI
开发者： See {IERC4626-maxWithdraw}.
参数
| 名称 | 类型 | 描述 |
|---|---|---|
| owner | address | Address whose maximum withdrawable token amount is queried.✨ AI |
返回值
| 名称 | 类型 | 描述 |
|---|---|---|
| — | uint256 | Maximum withdrawable token amount for the owner, expressed in token units.✨ AI |
name()
view
Returns the token's name.✨ AI
开发者： Returns the name of the token.
返回值
| 名称 | 类型 | 描述 |
|---|---|---|
| — | string | The token name as a human-readable string defined in the contract.✨ AI |
nonces(owner: address)
view
Returns the current permit nonce for a given token holder address.✨ AI
开发者： See {IERC20Permit-nonces}.
参数
| 名称 | 类型 | 描述 |
|---|---|---|
| owner | address | Address of the token holder whose nonce is queried.✨ AI |
返回值
| 名称 | 类型 | 描述 |
|---|---|---|
| — | uint256 | Current nonce uint256 for the owner; increments with each permit and prevents signature replay.✨ AI |
previewDeposit(assets: uint256)
view
Return the number of vault shares you would receive for depositing a given amount of assets.✨ AI
开发者： See {IERC4626-previewDeposit}.
参数
| 名称 | 类型 | 描述 |
|---|---|---|
| assets | uint256 | Amount of underlying assets to deposit.✨ AI |
返回值
| 名称 | 类型 | 描述 |
|---|---|---|
| — | uint256 | Number of shares that would be minted for the provided assets, without changing contract state.✨ AI |
previewMint(shares: uint256)
view
Preview the amount of underlying assets required to mint a specified number of vault shares.✨ AI
开发者： See {IERC4626-previewMint}.
参数
| 名称 | 类型 | 描述 |
|---|---|---|
| shares | uint256 | Number of vault shares the caller intends to mint.✨ AI |
返回值
| 名称 | 类型 | 描述 |
|---|---|---|
| — | uint256 | Amount of underlying assets required to mint the specified shares, denominated in the asset token.✨ AI |
previewRedeem(shares: uint256)
view
Estimate how much underlying token you will receive if you redeem a given number of shares.✨ AI
开发者： See {IERC4626-previewRedeem}.
参数
| 名称 | 类型 | 描述 |
|---|---|---|
| shares | uint256 | Number of vault shares to redeem.✨ AI |
返回值
| 名称 | 类型 | 描述 |
|---|---|---|
| — | uint256 | Estimated amount of underlying tokens receivable for the specified shares.✨ AI |
previewWithdraw(assets: uint256)
view
Estimate the number of shares to burn to withdraw a specified amount of assets.✨ AI
开发者： See {IERC4626-previewWithdraw}.
参数
| 名称 | 类型 | 描述 |
|---|---|---|
| assets | uint256 | Amount of underlying assets the user wants to withdraw.✨ AI |
返回值
| 名称 | 类型 | 描述 |
|---|---|---|
| — | uint256 | Number of shares that would be burned to fulfill the requested asset withdrawal.✨ AI |
symbol()
view
Returns the token symbol users see for the SavingsXDai ERC-20 token.✨ AI
开发者： Returns the symbol of the token, usually a shorter version of the name.
返回值
| 名称 | 类型 | 描述 |
|---|---|---|
| — | string | The token's short symbol string used to identify the token (e.g., "xDAI").✨ AI |
totalAssets()
view
Returns the total amount of underlying assets currently held by the contract.✨ AI
开发者： See {IERC4626-totalAssets}.
返回值
| 名称 | 类型 | 描述 |
|---|---|---|
| — | uint256 | Total amount of underlying assets the contract manages, expressed as a uint256 in the token's smallest units.✨ AI |
totalSupply()
view
Returns the total token supply of the SavingsXDai token.✨ AI
开发者： See {IERC20-totalSupply}.
返回值
| 名称 | 类型 | 描述 |
|---|---|---|
| — | uint256 | uint256 total number of tokens in existence (minted minus burned), expressed in the token's smallest unit.✨ AI |
wxdai()
view
Return the wrapped xDai (wXDAI) token contract address.✨ AI
返回值
| 名称 | 类型 | 描述 |
|---|---|---|
| — | address | The address of the wrapped xDai (wXDAI) ERC-20 token contract.✨ AI |
写入函数
approve(spender: address, value: uint256)
nonpayable
Approve a spender to transfer up to a specified number of your tokens.✨ AI
开发者： See {IERC20-approve}. NOTE: If `value` is the maximum `uint256`, the allowance is not updated on `transferFrom`. This is semantically equivalent to an infinite approval. Requirements: - `spender` cannot be the zero address.
参数
| 名称 | 类型 | 描述 |
|---|---|---|
| spender | address | Address authorized to spend tokens from the caller's balance.✨ AI |
| value | uint256 | Maximum token amount the spender is allowed to transfer.✨ AI |
返回值
| 名称 | 类型 | 描述 |
|---|---|---|
| — | bool | True if the approval operation succeeded, otherwise false.✨ AI |
decreaseAllowance(spender: address, requestedDecrease: uint256)
nonpayable
Decreases the caller's token allowance for spender by requestedDecrease and emits an Approval event.✨ AI
开发者： Atomically decreases the allowance granted to `spender` by the caller. This is an alternative to {approve} that can be used as a mitigation for problems described in {IERC20-approve}. Emits an {Approval} event indicating the updated allowance. Requirements: - `spender` cannot be the zero address. - `spender` must have allowance for the caller of at least `requestedDecrease`. NOTE: Although this function is designed to avoid double spending with {approval}, it can still be frontrunned, preventing any attempt of allowance reduction.
参数
| 名称 | 类型 | 描述 |
|---|---|---|
| spender | address | Address allowed to spend tokens on behalf of the caller.✨ AI |
| requestedDecrease | uint256 | Amount to subtract from the current allowance for spender.✨ AI |
返回值
| 名称 | 类型 | 描述 |
|---|---|---|
| — | bool | True if the allowance was successfully decreased.✨ AI |
deposit(assets: uint256, receiver: address)
nonpayable
Deposit assets into the vault and mint corresponding shares to the receiver.✨ AI
开发者： See {IERC4626-deposit}.
参数
| 名称 | 类型 | 描述 |
|---|---|---|
| assets | uint256 | Amount of underlying assets to deposit (in token base units).✨ AI |
| receiver | address | Address that will receive the minted shares.✨ AI |
返回值
| 名称 | 类型 | 描述 |
|---|---|---|
| — | uint256 | Amount of shares minted to the receiver.✨ AI |
increaseAllowance(spender: address, addedValue: uint256)
nonpayable
Increase the caller's token allowance for spender by addedValue.✨ AI
开发者： Atomically increases the allowance granted to `spender` by the caller. This is an alternative to {approve} that can be used as a mitigation for problems described in {IERC20-approve}. Emits an {Approval} event indicating the updated allowance. Requirements: - `spender` cannot be the zero address.
参数
| 名称 | 类型 | 描述 |
|---|---|---|
| spender | address | Address approved to spend the caller's tokens.✨ AI |
| addedValue | uint256 | Amount of tokens to add to the existing allowance.✨ AI |
返回值
| 名称 | 类型 | 描述 |
|---|---|---|
| — | bool | True if the allowance was successfully increased.✨ AI |
mint(shares: uint256, receiver: address)
nonpayable
Mint a specified number of vault shares to the receiver by providing the required underlying assets.✨ AI
开发者： See {IERC4626-mint}. As opposed to {deposit}, minting is allowed even if the vault is in a state where the price of a share is zero. In this case, the shares will be minted without requiring any assets to be deposited.
参数
| 名称 | 类型 | 描述 |
|---|---|---|
| shares | uint256 | Number of vault shares to mint.✨ AI |
| receiver | address | Address that will receive the minted shares.✨ AI |
返回值
| 名称 | 类型 | 描述 |
|---|---|---|
| — | uint256 | Amount of underlying assets deposited to mint the requested shares.✨ AI |
permit(owner: address, spender: address, value: uint256, deadline: uint256, signature: bytes)
nonpayable
开发者： Sets `value` as the allowance of `spender` over ``owner``'s tokens, given ``owner``'s signed approval. IMPORTANT: The same issues {IERC20-approve} has related to transaction ordering also apply here. Emits an {Approval} event. Requirements: - `spender` cannot be the zero address. - `deadline` must be a timestamp in the future. - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner` over the EIP712-formatted function arguments. - the signature must use ``owner``'s current nonce (see {nonces}). For more information on the signature format, see the https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP section].
参数
| 名称 | 类型 | 描述 |
|---|---|---|
| owner | address | |
| spender | address | |
| value | uint256 | |
| deadline | uint256 | |
| signature | bytes |
permit(owner: address, spender: address, value: uint256, deadline: uint256, v: uint8, r: bytes32, s: bytes32)
nonpayable
开发者： Sets `value` as the allowance of `spender` over ``owner``'s tokens, given ``owner``'s signed approval. IMPORTANT: The same issues {IERC20-approve} has related to transaction ordering also apply here. Emits an {Approval} event. Requirements: - `spender` cannot be the zero address. - `deadline` must be a timestamp in the future. - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner` over the EIP712-formatted function arguments. - the signature must use ``owner``'s current nonce (see {nonces}). For more information on the signature format, see the https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP section].
参数
| 名称 | 类型 | 描述 |
|---|---|---|
| owner | address | |
| spender | address | |
| value | uint256 | |
| deadline | uint256 | |
| v | uint8 | |
| r | bytes32 | |
| s | bytes32 |
redeem(shares: uint256, receiver: address, owner: address)
nonpayable
开发者： See {IERC4626-redeem}.
参数
| 名称 | 类型 | 描述 |
|---|---|---|
| shares | uint256 | |
| receiver | address | |
| owner | address |
返回值
| 名称 | 类型 | 描述 |
|---|---|---|
| — | uint256 |
transfer(to: address, value: uint256)
nonpayable
开发者： See {IERC20-transfer}. Requirements: - `to` cannot be the zero address. - the caller must have a balance of at least `value`.
参数
| 名称 | 类型 | 描述 |
|---|---|---|
| to | address | |
| value | uint256 |
返回值
| 名称 | 类型 | 描述 |
|---|---|---|
| — | bool |
transferFrom(from: address, to: address, value: uint256)
nonpayable
开发者： See {IERC20-transferFrom}. Emits an {Approval} event indicating the updated allowance. This is not required by the EIP. See the note at the beginning of {ERC20}. NOTE: Does not update the allowance if the current allowance is the maximum `uint256`. Requirements: - `from` and `to` cannot be the zero address. - `from` must have a balance of at least `value`. - the caller must have allowance for ``from``'s tokens of at least `value`.
参数
| 名称 | 类型 | 描述 |
|---|---|---|
| from | address | |
| to | address | |
| value | uint256 |
返回值
| 名称 | 类型 | 描述 |
|---|---|---|
| — | bool |
withdraw(assets: uint256, receiver: address, owner: address)
nonpayable
开发者： See {IERC4626-withdraw}.
参数
| 名称 | 类型 | 描述 |
|---|---|---|
| assets | uint256 | |
| receiver | address | |
| owner | address |
返回值
| 名称 | 类型 | 描述 |
|---|---|---|
| — | uint256 |
事件
Approval(owner: address, spender: address, value: uint256)
| 名称 | 类型 | 已索引 | 描述 |
|---|---|---|---|
| owner | address | ✓ | |
| spender | address | ✓ | |
| value | uint256 |
Deposit(sender: address, owner: address, assets: uint256, shares: uint256)
| 名称 | 类型 | 已索引 | 描述 |
|---|---|---|---|
| sender | address | ✓ | |
| owner | address | ✓ | |
| assets | uint256 | ||
| shares | uint256 |
EIP712DomainChanged()
Transfer(from: address, to: address, value: uint256)
| 名称 | 类型 | 已索引 | 描述 |
|---|---|---|---|
| from | address | ✓ | |
| to | address | ✓ | |
| value | uint256 |
Withdraw(sender: address, receiver: address, owner: address, assets: uint256, shares: uint256)
| 名称 | 类型 | 已索引 | 描述 |
|---|---|---|---|
| sender | address | ✓ | |
| receiver | address | ✓ | |
| owner | address | ✓ | |
| assets | uint256 | ||
| shares | uint256 |