Last Updated：2025/11/28

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(software) A compile-time process by which explicit data type annotations are removed from a program, before run-time execution.

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type erasure

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Source Word

type erasure

Noun

countable uncountable

(software) A compile-time process by which explicit data type annotations are removed from a program, before run-time execution.

Japanese Meaning

コンパイル時にプログラムから明示的な型注釈（データ型情報）を実行前に削除するプロセス。 / プログラムの実行前に、型情報を取り除くことで型に依存しない動作を実現する技法。

What is this buttons?

During compilation, the compiler applied type erasure to strip generic type annotations before generating the bytecode.

Google Translation / DeepL Translation

コンパイル時にコンパイラは、バイトコードを生成する前にジェネリクスの明示的な型注釈を削除する型消去を適用した。

Details

Sense（1）

(software) A compile-time process by which explicit data type annotations are removed from a program, before run-time execution.

Although .NET does not have type erasure, meaning it supports reified types, the .NET version of Scala currently follows the JVM's erasure model in order to avoid incompatibilities that would require a “forked” implementation.

Google Translation / DeepL Translation

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Sense（2）

(C++ programming) A technique by which a class is made generic without requiring compile-time template arguments.

Type erasure is often seen as a mysterious, enigmatic programming technique. It is not exclusive to C++ (most tutorials on type erasure use Java for their examples).

Google Translation / DeepL Translation

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type erasures

（ plural ）

Details

type erasure

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