37 lines
942 B
Go
37 lines
942 B
Go
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package gen
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import (
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"git.codemonkeysoftware.net/b/peachy-go/csexp"
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"pgregory.net/rapid"
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)
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type T rapid.TB
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func Atom() *rapid.Generator[csexp.Atom] {
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return rapid.Custom(func(t *rapid.T) csexp.Atom {
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return csexp.Atom(rapid.SliceOf(rapid.Byte()).Draw(t, "atom"))
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})
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}
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func List() *rapid.Generator[csexp.List] {
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return rapid.Custom(func(t *rapid.T) csexp.List {
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var s []csexp.Sexp = rapid.SliceOfN(rapid.Deferred(Sexp), 0, 5).Draw(t, "s")
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return csexp.List(s)
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})
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}
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func AsSexp[T csexp.Sexp](value T) csexp.Sexp {
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return csexp.Sexp(value)
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}
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func Sexp() *rapid.Generator[csexp.Sexp] {
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return rapid.Custom(func(t *rapid.T) csexp.Sexp {
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choice := rapid.Uint8Range(0, 10).Draw(t, "choice")
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// If we don't weight it enough towards atoms, it likes to overflow the stack.
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if choice < 7 {
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return rapid.Map(Atom(), AsSexp).Draw(t, "atom-sexp")
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}
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return rapid.Map(rapid.Deferred(List), AsSexp).Draw(t, "list-sexp")
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})
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}
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