A representation of the Spanner ENUM type: a protobuf enumeration.
A ProtoEnum<E> can be implicitly constructed from, and explicitly converted to an E. Values can be copied, assigned, compared for equality, and streamed.
Example
Given a proto definition enum Color { RED = 0; BLUE = 1; GREEN = 2; }:
auto e = spanner::ProtoEnum<Color>(BLUE);
assert(Color(e) == BLUE);
Constructors
ProtoEnum()
The default value is the first listed in the enum's definition.
ProtoEnum(enum_type)
Implicit construction from the enum type.
| Parameter | |
|---|---|
| Name | Description |
v |
enum_type
|
Operators
operator enum_type() const
Explicit conversion to the enum type.
Functions
static TypeName()
The fully-qualified name of the enum type, scope delimited by periods.
| Returns | |
|---|---|
| Type | Description |
std::string const & |
|
Type Aliases
enum_type
Alias Of:
E