Module flow_type 

Flow built-in type names.

Every primitive and special type in Flow’s type system is defined here as a constant. No code in this crate should use raw string literals for Flow type names — always reference these constants instead.

Constants

ANY

any — opt-out of type checking.

BIGINT

bigint — arbitrary-precision integers.

BOOLEAN

boolean — true/false.

EMPTY

empty — the bottom type (no value inhabits this type).

MIXED

mixed — the top type (any value, unknown shape).

NULL

null — explicit null.

NUMBER

number — numeric values (integer and floating-point).

READ_ONLY_ARRAY

$ReadOnlyArray — immutable array generic.

STRING

string — text values.

SYMBOL

symbol — unique symbols.

VOID

void — absence of a value (unit type).