dc70d0cc43
This PR splits up the SCC that the compiler manages into (potentially) multiple ones after performing lambda lifting. This aids both the closed term extractor and the elimDeadBranches pass as they are both negatively influenced when more declarations than required are within one SCC.
92 lines
3.9 KiB
Text
92 lines
3.9 KiB
Text
import Lean
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/-- `erased α` is the same as `α`, except that the elements
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of `erased α` are erased in the VM in the same way as types
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and proofs. This can be used to track data without storing it
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literally. -/
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def Erased (α : Sort u) : Sort max 1 u :=
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Σ's : α → Prop, ∃ a, (fun b => a = b) = s
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namespace Erased
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/-- Erase a value. -/
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@[inline]
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def mk {α} (a : α) : Erased α :=
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⟨fun b => a = b, a, rfl⟩
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open Lean.Compiler
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set_option pp.explicit true
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set_option pp.funBinderTypes true
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set_option pp.letVarTypes true
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set_option trace.Compiler.result true
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/--
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trace: [Compiler.result] size: 1
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def Erased.mk (α : lcErased) (a : lcAny) : PSigma lcErased lcAny :=
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let _x.1 : PSigma lcErased lcAny := PSigma.mk ◾ ◾ ◾ ◾;
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return _x.1
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---
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trace: [Compiler.result] size: 5
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def _private.lean.run.erased.0._eval._lam_0 (_x.1 : Array
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Lean.Name) (_x.2 : PUnit) (_y.3 : Lean.Elab.Term.Context) (_y.4 : lcAny) (_y.5 : Lean.Meta.Context) (_y.6 : lcAny) (_y.7 : Lean.Core.Context) (_y.8 : lcAny) (_y.9 : lcVoid) : EST.Out
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Lean.Exception lcAny PUnit :=
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let _x.10 : EST.Out Lean.Exception lcAny PUnit := compile _x.1 _y.7 _y.8 _y.9;
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cases _x.10 : EST.Out Lean.Exception lcAny PUnit
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| EST.Out.ok (a.11 : PUnit) (a.12 : lcVoid) =>
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let _x.13 : EST.Out Lean.Exception lcAny PUnit := @EST.Out.ok ◾ ◾ ◾ _x.2 a.12;
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return _x.13
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| EST.Out.error (a.14 : Lean.Exception) (a.15 : lcVoid) =>
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return _x.10
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[Compiler.result] size: 1
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def _private.lean.run.erased.0._eval._closed_0 : String :=
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let _x.1 : String := "Erased";
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return _x.1
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[Compiler.result] size: 1
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def _private.lean.run.erased.0._eval._closed_1 : String :=
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let _x.1 : String := "mk";
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return _x.1
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[Compiler.result] size: 3
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def _private.lean.run.erased.0._eval._closed_2 : Lean.Name :=
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let _x.1 : String := _eval._closed_1.2;
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let _x.2 : String := _eval._closed_0.2;
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let _x.3 : Lean.Name := Lean.Name.mkStr2 _x.2 _x.1;
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return _x.3
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[Compiler.result] size: 2
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def _private.lean.run.erased.0._eval._closed_3 : Array Lean.Name :=
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let _x.1 : Nat := 1;
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let _x.2 : Array Lean.Name := Array.mkEmpty ◾ _x.1;
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return _x.2
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[Compiler.result] size: 3
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def _private.lean.run.erased.0._eval._closed_4 : Array Lean.Name :=
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let _x.1 : Lean.Name := _eval._closed_2.2;
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let _x.2 : Array Lean.Name := _eval._closed_3.2;
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let _x.3 : Array Lean.Name := Array.push ◾ _x.2 _x.1;
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return _x.3
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[Compiler.result] size: 3
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def _private.lean.run.erased.0._eval._closed_5 : Lean.Elab.Term.Context →
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lcAny → Lean.Meta.Context → lcAny → Lean.Core.Context → lcAny → lcVoid → EST.Out Lean.Exception lcAny PUnit :=
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let _x.1 : PUnit := PUnit.unit;
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let _x.2 : Array Lean.Name := _eval._closed_4.2;
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let _f.3 : Lean.Elab.Term.Context →
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lcAny →
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Lean.Meta.Context →
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lcAny → Lean.Core.Context → lcAny → lcVoid → EST.Out Lean.Exception lcAny PUnit := _eval._lam_0.2 _x.2 _x.1;
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return _f.3
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[Compiler.result] size: 9
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def _private.lean.run.erased.0._eval (a.1 : Lean.Elab.Command.Context) (a.2 : lcAny) (a.3 : lcVoid) : EST.Out
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Lean.Exception lcAny PUnit :=
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let _x.4 : String := _eval._closed_0.2;
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let _x.5 : String := _eval._closed_1.2;
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let _x.6 : Lean.Name := _eval._closed_2.2;
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let _x.7 : Nat := 1;
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let _x.8 : Array Lean.Name := _eval._closed_3.2;
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let _x.9 : Array Lean.Name := _eval._closed_4.2;
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let _x.10 : PUnit := PUnit.unit;
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let _f.11 : Lean.Elab.Term.Context →
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lcAny →
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Lean.Meta.Context →
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lcAny → Lean.Core.Context → lcAny → lcVoid → EST.Out Lean.Exception lcAny PUnit := _eval._closed_5.2;
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let _x.12 : EST.Out Lean.Exception lcAny PUnit := Lean.Elab.Command.liftTermElabM._redArg _f.11 a.1 a.2 a.3;
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return _x.12
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-/
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#guard_msgs in
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run_meta Lean.Compiler.compile #[``Erased.mk]
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