Tuesday, November 03, 2009

F# under the covers VII

Working with nCover to examine the number of code-points represented by any given method, the October CTP made a large number of changes -- some up, some down -- to the code generated by the compiler.

Most interesting is the change to attribute setters, which used to be NOP;assign;return and are now just assign;return. Also the name of the implicit backing field has changed to be the property name with an appended '@', rather than being a case-mangled version of the property name.

(As always, talking about Debug builds).

Later ... This one is a bit too cryptic for me to decipher what I was writing about. Code like this:

Has internal fields like Line@ still at; and property setters as in

compile to the NOP-bearing

with the Feb 2010 CTP.

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