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Docs: note about postfix precedence on Tasks page

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Mark Harrah 2013-04-01 11:39:02 -04:00
parent 2d00fbc92b
commit bd2a8e3afb
1 changed files with 10 additions and 1 deletions
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11
src/sphinx/Detailed-Topics/Tasks.rst
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@ -148,7 +148,7 @@ following example, ``test:sampleTask`` uses the result of
On precedence
~~~~~~~~~~~~~
As a reminder, method precedence is by the name of the method.
As a reminder, infix method precedence is by the name of the method and postfix methods have lower precedence than infix methods.
1. Assignment methods have the lowest precedence. These are methods with
names ending in ``=``, except for ``!=``, ``<=``, ``>=``, and names
@ -165,6 +165,15 @@ Therefore, the the previous example is equivalent to the following:
(sampleTask in Test).:=( (intTask in Compile).value * 3 )
Additionally, the braces in the following are necessary:
::
helloTask := { "echo Hello" ! }
Without them, Scala interprets the line as ``( helloTask.:=("echo Hello") ).!``
instead of the desired ``helloTask.:=( "echo Hello".! )``.
Separating implementations
--------------------------