Files
flatbuffers/swift/Sources/FlatBuffers/FlatBufferObject.swift
mustiikhalil 34305c4ce4 [Swift] Adds GRPC to Swift (#5758)
* Adds the basic structure for required to add grpc support

Added the message implementation

Updated the code to confirm to the protocol flatbuffersobject

Adds an example for Swift flatbuffers GRPC

Started implementing the swift GRPC code Gen

Generator generates protocols now

Fixing ci issues

Migrated the logic to use grpc_generator::File instead of string

Refactored swift project

Implemented GRPC in swift

Finished implementing GRPC in swift

Fixes issues

Adds contiguousBytes initializer to swift

Adds documentation + fixes buffer nameing in tables + structs

Adds documentation + fixes buffer nameing in tables + structs

Updated tests

* Updated version
2020-02-24 09:27:41 -08:00

89 lines
3.0 KiB
Swift

import Foundation
/// FlatbufferObject structures all the Flatbuffers objects
public protocol FlatBufferObject {
var __buffer: ByteBuffer! { get }
init(_ bb: ByteBuffer, o: Int32)
}
/// Readable is structures all the Flatbuffers structs
///
/// Readable is a procotol that each Flatbuffer struct should confirm to since
/// FlatBufferBuilder would require a Type to both create(struct:) and createVector(structs:) functions
public protocol Readable: FlatBufferObject {
static var size: Int { get }
static var alignment: Int { get }
}
public protocol Enum {
associatedtype T: Scalar
static var byteSize: Int { get }
var value: T { get }
}
/// Mutable is a protocol that allows us to mutate Scalar values within the buffer
public protocol Mutable {
/// makes Flatbuffer accessed within the Protocol
var bb: ByteBuffer { get }
/// makes position of the table/struct accessed within the Protocol
var postion: Int32 { get }
}
extension Mutable {
/// Mutates the memory in the buffer, this is only called from the access function of table and structs
/// - Parameters:
/// - value: New value to be inserted to the buffer
/// - index: index of the Element
func mutate<T: Scalar>(value: T, o: Int32) -> Bool {
guard o != 0 else { return false }
bb.write(value: value, index: Int(o), direct: true)
return true
}
}
extension Mutable where Self == Table {
/// Mutates a value by calling mutate with respect to the position in the table
/// - Parameters:
/// - value: New value to be inserted to the buffer
/// - index: index of the Element
public func mutate<T: Scalar>(_ value: T, index: Int32) -> Bool {
guard index != 0 else { return false }
return mutate(value: value, o: index + postion)
}
/// Directly mutates the element by calling mutate
///
/// Mutates the Element at index ignoring the current position by calling mutate
/// - Parameters:
/// - value: New value to be inserted to the buffer
/// - index: index of the Element
public func directMutate<T: Scalar>(_ value: T, index: Int32) -> Bool {
return mutate(value: value, o: index)
}
}
extension Mutable where Self == Struct {
/// Mutates a value by calling mutate with respect to the position in the struct
/// - Parameters:
/// - value: New value to be inserted to the buffer
/// - index: index of the Element
public func mutate<T: Scalar>(_ value: T, index: Int32) -> Bool {
return mutate(value: value, o: index + postion)
}
/// Directly mutates the element by calling mutate
///
/// Mutates the Element at index ignoring the current position by calling mutate
/// - Parameters:
/// - value: New value to be inserted to the buffer
/// - index: index of the Element
public func directMutate<T: Scalar>(_ value: T, index: Int32) -> Bool {
return mutate(value: value, o: index)
}
}
extension Struct: Mutable {}
extension Table: Mutable {}