top of page

[Chisel/scala] overloaded method apply with alternatives


Introduction

When writing code in chisel, I occasionally encounter the compilation error mentioned above.

I wasn't really sure what this meant, so I researched about it.



Detail

Let's take the following error as an example and look at it line by line:

overloaded method apply with alternatives:
[error]   [T <: chisel3.Data](elt0: T, elts: T*): chisel3.Vec[T] <and>
[error]   [T <: chisel3.Data](elts: Seq[T]): chisel3.Vec[T]
[error]  cannot be applied to (Seq[MyClass])

overloaded method apply with alternatives:

This is easier to understand if you read it as 'apply', with the quotation marks added. There are multiple overloads of the 'apply' method. They are listed below.


[T <: chisel3.Data](elt0: T, elts: T*): chisel3.Vec[T]

This says that the class chisel3.Vec[T] (where T must inherit from chisel3.Data) has an apply method that takes multiple arguments of type T.


[T <: chisel3.Data](elts: Seq[T]): chisel3.Vec[T]

Similarly, there is also an apply() that takes an argument of type Seq[T].


[error] cannot be applied to (Seq[MyClass])

And this error saying that none of the above can be applied to Seq[MyClass].



This error is usually caused by a mistake in the type specification, so if you review that, you can often get rid of the error.

Recent Posts

See All

[chisel/scala] Create an array of Modules

What I want to do I have a class (parts) that I created and that inherits from Module. I want to place multiple instances (components) of this class in a circuit. What I tried I tried to create an arr

Comentários


Let's do our best with our partner:​ ChatReminder

iphone6.5p2.png

It is an application that achieves goals in a chat format with partners.

google-play-badge.png
Download_on_the_App_Store_Badge_JP_RGB_blk_100317.png

Let's do our best with our partner:​ ChatReminder

納品:iPhone6.5①.png

It is an application that achieves goals in a chat format with partners.

google-play-badge.png
Download_on_the_App_Store_Badge_JP_RGB_blk_100317.png

Theme diary: Decide the theme and record for each genre

It is a diary application that allows you to post and record with themes and sub-themes for each genre.

google-play-badge.png
Download_on_the_App_Store_Badge_JP_RGB_blk_100317.png
bottom of page