next: Accessing Fields

## References and Scopes

A reference refers to the value of the field defined within the nearest enclosing scope.

If no field matches the reference within the file, it may match a top-level field defined in any other file of the same package.

If there is still no match, it may match a predefined value.

scopes.cue

v: 1
a: {
v: 2
b: v // matches the inner v
}
a: {
c: v // matches the top-level v
}
b: v

\$ cue eval scopes.cue

v: 1
a: {
v: 2
b: 2
c: 1
}
b: 1