Adds support for [TinyGo](https://tinygo.org/), an LLVM-based Go
compiler targeting microcontrollers and WebAssembly.
## Changes
- **New `TinyGoCompiler` class** (`lib/compilers/tinygo.ts`): Extends
BaseCompiler with TinyGo-specific handling:
- Forces binary mode (TinyGo has no `-gcflags=-S` equivalent — it's
LLVM-based, not gc)
- Sets up `TINYGOROOT`, `GOROOT`, and `PATH` environment variables
- Uses `tinygo build -o <output>` as the compilation command
- User arguments (e.g. `-opt=2`, `-gc=none`, `-scheduler=none`) pass
through directly
- **Config**: Adds TinyGo 0.37.0 to `go.amazon.properties`
- **Registration**: Exports `TinyGoCompiler` from `_all.ts`
## Why TinyGo?
TinyGo produces significantly smaller binaries than standard Go (445KB
vs 1.5MB for a hello world). It targets a different niche —
microcontrollers, WASM, and resource-constrained environments — making
it an interesting comparison alongside the existing gc and gccgo
compilers.
## Testing
Tested locally with CE running on a non-default port:
- ✅ Compiler detected and version parsed correctly
- ✅ Compilation produces x86 assembly via objdump (5000+ lines for a
simple program)
- ✅ Execution works (`println` output captured correctly)
- ✅ User arguments like `-opt=2` pass through correctly
- ✅ All pre-commit checks pass (ts-check, lint, properties validation,
related tests)
## Infra
TinyGo 0.37.0 is already configured in the infra repo
(`bin/yaml/go.yaml`) — installation is just a tarball download from
GitHub releases.
The config references `/opt/compiler-explorer/golang-1.24.2/go` as
GOROOT — TinyGo needs a standard Go installation for the stdlib.
Closes#3969🤖 Generated by LLM (Claude, via OpenClaw)
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Co-authored-by: mattgodbolt-molty <mattgodbolt-molty@users.noreply.github.com>
