# Panda Token

## PandaToken

ERC20-compliant token with bonding curve mechanics and permit functionality.

### Core Functions

#### Token Information

**`name`**

```solidity
function name() public view returns (string memory)
```

Returns the token name.

**`symbol`**

```solidity
function symbol() public view returns (string memory)
```

Returns the token symbol.

#### Token Operations

**`transfer`**

```solidity
function transfer(
    address to,
    uint256 amount
) public returns (bool)
```

Transfer tokens to a specified address.

**Parameters:**

* `to`: Recipient address
* `amount`: Amount of tokens to transfer

**Returns:**

* `true` if transfer successful

**Errors:**

* `PandaToken: INVALID_TRANSFER` - When transferring to DEX pair before graduation

**`approve`**

```solidity
function approve(
    address spender,
    uint256 amount
) public returns (bool)
```

Approve address to spend tokens.

**Parameters:**

* `spender`: Address to approve
* `amount`: Amount of tokens to approve

**Returns:**

* `true` if approval successful

**`permit`**

```solidity
function permit(
    address owner,
    address spender,
    uint256 value,
    uint256 deadline,
    uint8 v,
    bytes32 r,
    bytes32 s
) public
```

Approve spending using a signature (EIP-2612).

**Parameters:**

* `owner`: Token owner address
* `spender`: Spender address
* `value`: Amount to approve
* `deadline`: Timestamp after which permit is invalid
* `v`, `r`, `s`: Signature components

#### DEX Information

**`dexPair`**

```solidity
function dexPair() public view returns (address)
```

Returns the DEX pair address for this token.

**Returns:**

* Address of the token's DEX trading pair

#### State Information

**`graduated`**

```solidity
function graduated() public view returns (bool)
```

Returns whether the token has graduated to DEX trading.

**`getCurrentPrice`**

```solidity
function getCurrentPrice() public view returns (uint256)
```

Returns the current price from the bonding curve.

#### Trading Functions

Inherits all trading functions from PandaPool:

* `buyTokens`
* `buyTokensWithBera`
* `sellTokens`
* `sellTokensForBera`

See PandaPool documentation for detailed trading function specifications.

### Events

#### Standard ERC20 Events

```solidity
event Transfer(
    address indexed from,
    address indexed to,
    uint256 value
)
```

```solidity
event Approval(
    address indexed owner,
    address indexed spender,
    uint256 value
)
```

#### Graduation Event

```solidity
event LiquidityMoved(
    uint256 amountPanda,
    uint256 amountBase
)
```

Emitted when the token graduates to DEX trading.


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