Skip to content

Latest commit

 

History

History
33 lines (24 loc) · 1.32 KB

under-the-hood-swift-binary-macros.md

File metadata and controls

33 lines (24 loc) · 1.32 KB
Raw

< Documentation

Under the Hood: Swift Binary Macros

This technique was inspired by the approach mentioned in this blog post.

Overview

The process of turning a package into a pod can be summarized in the following steps:

  • Step (1): Prepare a dedicated pod dir: .spm.pods/macros/<Package>

  • Step (2): Download the source of that package into: .spm.pods/macros/.download/<Package>

  • Step (3): Prebuild the macro implementation.
    Place it under .spm.pods/macros/.prebuilt/<Package>/<Binary>-<config>

  • Step (4): Copy the source files of the macro interfaces,
    from .spm.pods/macros/.download/<Package>/Sources/<Interfaces>
    to .spm.pods/macros/<Package>/Sources/<Interfaces>

The dir structure of .spm.pods looks like this:

.spm.pods / --- PackageA / --- PackageA.podspec
           |              |--- Sources / --- Interfaces / --- Interfaces.swift
           |
           |--- .prebuilt / --- PackageA / --- Binary-debug (*)
           |                              |--- Binary-release (*)
           |
           |--- .download / --- PackageA / --- Package.swift
                                          |--- Sources / --- Interfaces / --- Interfaces.swift
                                                        |--- Implementation / MacroA.swift