Synopsis Select a field from a tuple by its field name.
Syntax Exp . Name
Exp Name Exp . Name
tuple[ T1 L1, T2 L2, ... ] Li Ti
Description Field selection applies to tuples with named elements. Exp should evaluate to a tuple with field Name and returns the value of that field. Name stands for itself and is not evaluated.
rascal>tuple[int key, str val] T = <1, "abc">;
tuple[int key,str val]: <1,"abc">
str: "abc"
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