> ## Documentation Index
> Fetch the complete documentation index at: https://voltaire.tevm.sh/llms.txt
> Use this file to discover all available pages before exploring further.

# Constructor

> Auto-generated API documentation

[**@tevm/voltaire**](../../../index.mdx)

***

[@tevm/voltaire](../../../index.mdx) / [primitives/Abi](../index.mdx) / Constructor

# Constructor

## Classes

### Constructor

Defined in: [src/primitives/Abi/constructor/Constructor.js:14](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/primitives/Abi/constructor/Constructor.js#L14)

Factory function for creating Constructor instances

#### Template

#### Template

#### Param

#### Param

#### Param

#### Param

#### Type Parameters

##### TStateMutability

`TStateMutability` *extends* [`StateMutability`](Function.mdx#statemutability-1)

##### TInputs

`TInputs` *extends* readonly `Parameter`\[]

#### Constructors

##### Constructor

> **new Constructor**\<`TStateMutability`, `TInputs`>(`options`): [`Constructor`](#constructor)\<`TStateMutability`, `TInputs`>

Defined in: [src/primitives/Abi/constructor/Constructor.js:14](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/primitives/Abi/constructor/Constructor.js#L14)

Factory function for creating Constructor instances

###### Parameters

###### options

###### inputs

`TInputs`

###### stateMutability

`TStateMutability`

###### type?

`"constructor"` = `"constructor"`

###### Returns

[`Constructor`](#constructor)\<`TStateMutability`, `TInputs`>

#### Properties

##### decodeParams()

> `static` **decodeParams**: (`constructor`, `data`) => `any`\[]

Defined in: [src/primitives/Abi/constructor/Constructor.js:22](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/primitives/Abi/constructor/Constructor.js#L22)

Decode constructor parameters

###### Parameters

###### constructor

[`ConstructorType`](#constructortype)\<[`StateMutability`](Function.mdx#statemutability-1), readonly `Parameter`\[]>

Constructor definition

###### data

`Uint8Array`\<`ArrayBufferLike`>

Encoded data to decode

###### Returns

`any`\[]

Decoded parameters

###### Example

```typescript theme={null}
const constructor = {
  type: "constructor",
  stateMutability: "nonpayable",
  inputs: [{ type: "uint256" }]
};
const decoded = Constructor.decodeParams(constructor, encodedData);
```

##### encodeParams()

> `static` **encodeParams**: (`constructor`, `args`) => `Uint8Array`\<`ArrayBufferLike`>

Defined in: [src/primitives/Abi/constructor/Constructor.js:21](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/primitives/Abi/constructor/Constructor.js#L21)

Encode constructor parameters

###### Parameters

###### constructor

[`ConstructorType`](#constructortype)\<[`StateMutability`](Function.mdx#statemutability-1), readonly `Parameter`\[]>

Constructor definition

###### args

`unknown`\[]

Arguments to encode

###### Returns

`Uint8Array`\<`ArrayBufferLike`>

Encoded parameters

###### Example

```typescript theme={null}
const constructor = {
  type: "constructor",
  stateMutability: "nonpayable",
  inputs: [{ type: "uint256" }]
};
const encoded = Constructor.encodeParams(constructor, [123n]);
```

#### Methods

##### decodeParams()

> **decodeParams**(`data`): `any`\[]

Defined in: [src/primitives/Abi/constructor/Constructor.js:34](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/primitives/Abi/constructor/Constructor.js#L34)

###### Parameters

###### data

`Uint8Array`\<`ArrayBufferLike`>

###### Returns

`any`\[]

##### encodeParams()

> **encodeParams**(`args`): `Uint8Array`\<`ArrayBufferLike`>

Defined in: [src/primitives/Abi/constructor/Constructor.js:29](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/primitives/Abi/constructor/Constructor.js#L29)

###### Parameters

###### args

`unknown`\[]

###### Returns

`Uint8Array`\<`ArrayBufferLike`>

##### toString()

> **toString**(): `string`

Defined in: [src/primitives/Abi/constructor/Constructor.js:49](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/primitives/Abi/constructor/Constructor.js#L49)

###### Returns

`string`

## Interfaces

### ConstructorInstance

Defined in: [src/primitives/Abi/constructor/ConstructorType.ts:19](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/primitives/Abi/constructor/ConstructorType.ts#L19)

Constructor instance with methods (returned by Constructor factory)

#### Extends

* [`ConstructorType`](#constructortype)\<`TStateMutability`, `TInputs`>

#### Type Parameters

##### TStateMutability

`TStateMutability` *extends* [`StateMutability`](Function.mdx#statemutability-1) = [`StateMutability`](Function.mdx#statemutability-1)

##### TInputs

`TInputs` *extends* readonly `Parameter`\[] = readonly `Parameter`\[]

#### Properties

##### inputs

> **inputs**: `TInputs`

Defined in: [src/primitives/Abi/constructor/ConstructorType.ts:13](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/primitives/Abi/constructor/ConstructorType.ts#L13)

###### Inherited from

`ConstructorType.inputs`

##### stateMutability

> **stateMutability**: `TStateMutability`

Defined in: [src/primitives/Abi/constructor/ConstructorType.ts:12](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/primitives/Abi/constructor/ConstructorType.ts#L12)

###### Inherited from

`ConstructorType.stateMutability`

##### type

> **type**: `"constructor"`

Defined in: [src/primitives/Abi/constructor/ConstructorType.ts:11](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/primitives/Abi/constructor/ConstructorType.ts#L11)

###### Inherited from

`ConstructorType.type`

#### Methods

##### decodeParams()

> **decodeParams**(`data`): `ParametersToPrimitiveTypes`\<`TInputs`>

Defined in: [src/primitives/Abi/constructor/ConstructorType.ts:24](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/primitives/Abi/constructor/ConstructorType.ts#L24)

###### Parameters

###### data

`Uint8Array`

###### Returns

`ParametersToPrimitiveTypes`\<`TInputs`>

##### encodeParams()

> **encodeParams**(`args`): `Uint8Array`

Defined in: [src/primitives/Abi/constructor/ConstructorType.ts:23](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/primitives/Abi/constructor/ConstructorType.ts#L23)

###### Parameters

###### args

`ParametersToPrimitiveTypes`\<`TInputs`>

###### Returns

`Uint8Array`

## Type Aliases

### ConstructorType

> **ConstructorType**\<`TStateMutability`, `TInputs`> = `object`

Defined in: [src/primitives/Abi/constructor/ConstructorType.ts:7](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/primitives/Abi/constructor/ConstructorType.ts#L7)

Type definition for Constructor (data only)

#### Extended by

* [`ConstructorInstance`](#constructorinstance)

#### Type Parameters

##### TStateMutability

`TStateMutability` *extends* [`StateMutability`](Function.mdx#statemutability-1) = [`StateMutability`](Function.mdx#statemutability-1)

##### TInputs

`TInputs` *extends* readonly `Parameter`\[] = readonly `Parameter`\[]

#### Properties

##### inputs

> **inputs**: `TInputs`

Defined in: [src/primitives/Abi/constructor/ConstructorType.ts:13](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/primitives/Abi/constructor/ConstructorType.ts#L13)

##### stateMutability

> **stateMutability**: `TStateMutability`

Defined in: [src/primitives/Abi/constructor/ConstructorType.ts:12](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/primitives/Abi/constructor/ConstructorType.ts#L12)

##### type

> **type**: `"constructor"`

Defined in: [src/primitives/Abi/constructor/ConstructorType.ts:11](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/primitives/Abi/constructor/ConstructorType.ts#L11)

## Functions

### decodeParams()

> **decodeParams**(`constructor`, `data`): `any`\[]

Defined in: [src/primitives/Abi/constructor/decodeParams.js:21](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/primitives/Abi/constructor/decodeParams.js#L21)

Decode constructor parameters

#### Parameters

##### constructor

[`ConstructorType`](#constructortype)\<[`StateMutability`](Function.mdx#statemutability-1), readonly `Parameter`\[]>

Constructor definition

##### data

`Uint8Array`\<`ArrayBufferLike`>

Encoded data to decode

#### Returns

`any`\[]

Decoded parameters

#### Example

```typescript theme={null}
const constructor = {
  type: "constructor",
  stateMutability: "nonpayable",
  inputs: [{ type: "uint256" }]
};
const decoded = Constructor.decodeParams(constructor, encodedData);
```

***

### encodeParams()

> **encodeParams**(`constructor`, `args`): `Uint8Array`\<`ArrayBufferLike`>

Defined in: [src/primitives/Abi/constructor/encodeParams.js:21](https://github.com/evmts/voltaire/blob/bd6ec34405c15ad8cd51d11579d495dc53813482/src/primitives/Abi/constructor/encodeParams.js#L21)

Encode constructor parameters

#### Parameters

##### constructor

[`ConstructorType`](#constructortype)\<[`StateMutability`](Function.mdx#statemutability-1), readonly `Parameter`\[]>

Constructor definition

##### args

`unknown`\[]

Arguments to encode

#### Returns

`Uint8Array`\<`ArrayBufferLike`>

Encoded parameters

#### Example

```typescript theme={null}
const constructor = {
  type: "constructor",
  stateMutability: "nonpayable",
  inputs: [{ type: "uint256" }]
};
const encoded = Constructor.encodeParams(constructor, [123n]);
```

## References

### BrandedConstructor

Renames and re-exports [ConstructorType](#constructortype)