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avo/pass/util_test.go

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package pass_test
import (
"testing"
"github.com/mmcloughlin/avo/build"
"github.com/mmcloughlin/avo/internal/test"
"github.com/mmcloughlin/avo/ir"
"github.com/mmcloughlin/avo/pass"
)
// BuildFunction is a helper to compile a build context containing a single
// function and (optionally) apply a list of FunctionPasses to it.
func BuildFunction(t *testing.T, ctx *build.Context, passes ...pass.FunctionPass) *ir.Function {
t.Helper()
f, err := ctx.Result()
if err != nil {
build.LogError(test.Logger(t), err, 0)
t.FailNow()
}
fns := f.Functions()
if len(fns) != 1 {
t.Fatalf("expect 1 function")
}
fn := fns[0]
for _, p := range passes {
if err := p(fn); err != nil {
t.Fatal(err)
}
}
return fn
}