Sha256: 1a096044559c74df7eb1e83ad7dc2c402bc0ead199146f72ae78f8ae4a94fda5
Contents?: true
Size: 1.57 KB
Versions: 9
Compression:
Stored size: 1.57 KB
Contents
module H3
module Bindings
# Custom FFI Types
module Types
# A H3 resolution value.
#
# Integer, but must be between 0 and 15 inclusive.
class Resolution
extend FFI::DataConverter
native_type FFI::Type::INT
RES_RANGE = 0..15
private_constant :RES_RANGE
class << self
def to_native(value, _context)
failure unless value.is_a?(Integer) && RES_RANGE.cover?(value)
value
end
private
def failure
raise ArgumentError,
"resolution must be between #{RES_RANGE.first} and #{RES_RANGE.last}"
end
end
end
class H3IndexesIn
extend FFI::DataConverter
native_type FFI::Type::POINTER
def self.to_native(h3_set_in, _context)
h3_set_in.ptr
end
attr_reader :size
def initialize(set)
@size = set.size
ptr.write_array_of_ulong_long(set)
end
def ptr
@ptr ||= FFI::MemoryPointer.new(:ulong_long, size)
end
end
class H3IndexesOut < H3IndexesIn
native_type FFI::Type::POINTER
def initialize(size)
@size = size
end
def read
@read ||= ptr.read_array_of_ulong_long(size).reject(&:zero?)
end
end
module H3Indexes
class << self
def of_size(size)
H3IndexesOut.new(size)
end
def with_contents(set)
H3IndexesIn.new(set)
end
end
end
end
end
end
Version data entries
9 entries across 9 versions & 1 rubygems