2.7. State Variables#

Syntax#

StateVariableDefinition = (* type_name: *) TypeName
                          (* attributes: *) StateVariableAttributes
                          (* name: *) IDENTIFIER
                          (* value: *) StateVariableDefinitionValue?
                          (* semicolon: *) SEMICOLON;

StateVariableDefinitionValue = (* equal: *) EQUAL
                               (* value: *) Expression;

StateVariableAttributes = (* item: *) StateVariableAttribute*;

StateVariableAttribute = (* variant: *) OverrideSpecifier (* Introduced in 0.6.0 *)
                       | (* variant: *) CONSTANT_KEYWORD
                       | (* variant: *) INTERNAL_KEYWORD
                       | (* variant: *) PRIVATE_KEYWORD
                       | (* variant: *) PUBLIC_KEYWORD
                       | (* variant: *) IMMUTABLE_KEYWORD (* Introduced in 0.6.5 *)
                       | (* variant: *) TRANSIENT_KEYWORD; (* Introduced in 0.8.27 *)

State Variables#

State variables are variables whose values are permanently stored in contract storage.

contract MyContract {
    uint myStateVariable;
}