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f#monadscomputation-expressionf#-3.0

Defining new keywords in F#'s computation expression

The F# 3.0 beta contains a query {} computation expression with tons of new keywords.

How can I define my own keywords in a computation builder?

Solution

  • In F# 3.0, you can use CustomOperationAttribute for this purpose.

    The new attribute is not very well-documented, the only examples I find are this great answer by @Tomas and this interesting blog post.