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chore: Update Lean to v4.29.0 #76

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Merged
samuelburnham merged 1 commit into from
Apr 15, 2026
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chore: Update Lean to v4.29.0 #76

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6 changes: 4 additions & 2 deletions LSpec/SlimCheck/Sampleable.lean
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Original file line number Diff line number Diff line change
Expand Up @@ -91,13 +91,14 @@ class SampleableExt (α : Sort u) where
sample : Gen proxy
interp : proxy → α

attribute [instance] SampleableExt.proxyRepr
attribute [instance] SampleableExt.shrink
attribute [reducible, instance] SampleableExt.proxyRepr
attribute [reducible, instance] SampleableExt.shrink

namespace SampleableExt

/-- Use to generate instance whose purpose is to simply generate values
of a type directly using the `Gen` monad -/
@[reducible]
def mkSelfContained [Repr α] [Shrinkable α] (sample : Gen α) : SampleableExt α where
proxy := α
proxyRepr := inferInstance
Expand Down Expand Up @@ -176,6 +177,7 @@ instance Bool.sampleableExt : SampleableExt Bool :=
/-- This can be specialized into customized `SampleableExt Char` instances.
The resulting instance has `1 / length` chances of making an unrestricted choice of characters
and it otherwise chooses a character from `chars` with uniform probabilities. -/
@[reducible]
def Char.sampleable (length : Nat) (chars : Array Char) : SampleableExt Char :=
mkSelfContained do
let x ← choose Nat 0 length
Expand Down
18 changes: 9 additions & 9 deletions flake.lock
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2 changes: 1 addition & 1 deletion lean-toolchain
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Original file line number Diff line number Diff line change
@@ -1 +1 @@
leanprover/lean4:v4.28.0
leanprover/lean4:v4.29.0
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