value restriction
Word Rarity
Rare
Frequency: Zipf frequency 3.74 in modern English
21
Scrabble Score
16
Letters
4
Syllables
12
Unique Chars
Meaning
noun
In a functional language, inference of a polymorphic type only for syntactic values (values that can be evaluated at compile time) to ensure that a program is type-safe.
Uncountable
Example Sentences
- "A typical example is an expression returning always the empty list. It should be given the polymorphic type α list, but this is not possible under the value restriction if the expression has to be evaluated."
- "It has been found empirically that eta expansion usually suffices for dealing with the value restriction."