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Replace a bunch of type-specific Wasm allocation functions with a generic byte allocator and reusable opaque out-parameters for pointers. This makes it a lot more ergonomic (relatively) to use the Wasm interface and removes a dozen or so exports. This also updates the `ghostty_type_json` `abi` field with a maximum alignment value that host sides can use to keep every allocation aligned properly, easily, without hardcoding numbers. This adds a test to verify this all works as intended and runs in CI.
Examples
Standalone projects demonstrating the Ghostty library APIs.
The directories starting with c- use the C API and the directories
starting with zig- use the Zig API.
Every example can be built and run using zig build and zig build run
from within the respective example directory.
Even the C API examples use the Zig build system (not the language) to
build the project.
Running an Example
cd example/<dir>
zig build run