英語 での Type inference の使用例とその 日本語 への翻訳
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However, thanks to Haskell's type inference, the parameters of the function, xs and ys, are guaranteed to be comparable lists.
The auto attribute is used when there are no other attributes and type inference is desired.
Code that uses type inference resembles code that relies on late binding.
The Java community has been debating the concept adding type inference to Java 7 the last few weeks.
In addition, the API is designed with TypeScript type inference in mind.
Local values within a function can be defined using type inference.
The other big feature is the tsql interpolator that allows static verification and type inference for embedded SQL statements.
Cleverly- perhaps too cleverly- OCaml's type inference engine has worked out that drain_stack works on any object which has pop and size methods!
All of the features given so far- rich data types, pattern matching, type inference, nested functions- you could imagine could exist in a kind of"super C" language.
Type inference is only possible if the assigned value has a defined type, otherwise it will raise an error.
Nevertheless you should look at these programs and try and find out(1) how they work, and(2) how type inference is helping you to eliminate bugs.
Such discussion raises the question of whether Java 7 should keep Java the language in its current form or add additional language constructs such as type inference and closures.
While these are similar to what we already have in C, there are minor enhancements such as support for extension methods and improved type inference.
However we want a stack of int, not anything else, and so in this case we want to tell the type inference engine that this list isn't the general"list of anything" but is in fact the narrower"list of int.
In this specific case, the availability of several million lines of Java code allowed choices of implementation(in this case, the type inference for the diamond operator) as to their effects on an existing codebase.
This is actually not such a serious problem because if you accidentally tried to use Open in the type context of a lock, then OCaml's wonderful type inference would immediately spot the error and you wouldn't be able to compile the code.
I can only guess that this type inference problem is a problem that needs to be solved by the Scala compiler itself by treating sequential composition and parallel composition(product) as a first-class constuct in the type system.
This is actually not such a serious problem because if you accidentally tried to use Open in the type context of a lock, then OCaml's wonderful type inference would immediately spot the error and you wouldn't be able to compile the code.
Type inference is obviously easy for such a short program,
Hindley-Milner type system with type inference.