Definition

Decoded the generated Abi encoded data into decoded native types using the contract ABI specification

This takes in 5 arguments:

• an allocator used to manage the memory allocations
• a type that is used as the expected return type of this call.
• a slice of AbiParameter struct signatures.
• the abi encoded hex string.
• the options used for decoding (Checkout the options here: DecodeOptions)

You will only need to free memory if the abi parameter is of dynamicArray type as it internally will use an Arraylist so that memory must be freed. For logs decoding you not need to free any memory as it will all be made on the stack.

const std = @import("std");
const decoder = @import("zabi").decoder;
const AbiParameter = @import("zabi").param.AbiParameter;
 
const abi_parameter: AbiParameter = .{ .type = .{ .bool = {} }, .name = "foo"};
 
const ReturnType = std.meta.Tuple(&[_]type{bool});
 
const encoded = "0000000000000000000000000000000000000000000000000000000000000001"
 
const decoded = try decoder.decodeAbiParametersRuntime(std.testing.allocator, ReturnType, &.{abi_parameter}, encoded, .{})
defer decoded.deinit();
 
// Result
// .{true}

Returns

The return value is expected to be a tuple of types used for encoding. Compilation will fail or runtime errors will happen if the incorrect type is passed to the decoded error.

• Type: AbiDecodeRuntime(T)

Definition

Decoded the generated Abi encoded data into decoded native types using the contract ABI specification This expects that the parameters struct is comptime know. With this we don't need to know the expected return type since zabi can infer the return type from the struct signature.

This takes in 4 arguments:

• an allocator used to manage the memory allocations
• a slice of AbiParameter struct signatures.
• the abi encoded hex string.
• the options used for decoding (Checkout the options here: DecodeOptions)

const std = @import("std");
const decoder = @import("zabi").decoder;
const AbiParameter = @import("zabi").param.AbiParameter;
 
const abi_parameter: AbiParameter = .{ .type = .{ .bool = {} }, .name = "foo"};
 
const encoded = "0000000000000000000000000000000000000000000000000000000000000001"
 
const decoded = try decoder.decodeAbiParametersRuntime(std.testing.allocator, &.{abi_parameter}, encoded, .{})
defer decoded.deinit();
 
// Result
// .{true}

Returns

• Type: AbiDecode(params)