112 lines
5.4 KiB
Text
112 lines
5.4 KiB
Text
/-
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Copyright (c) 2019 Microsoft Corporation. All rights reserved.
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Released under Apache 2.0 license as described in the file LICENSE.
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Authors: Leonardo de Moura
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-/
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prelude
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import init.lean.compiler.ir.basic init.lean.format
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namespace Lean
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namespace IR
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private def formatArg : Arg → Format
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| (Arg.var id) := format id
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| Arg.irrelevant := "◾"
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instance argHasFormat : HasFormat Arg := ⟨formatArg⟩
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private def formatArray {α : Type} [HasFormat α] (args : Array α) : Format :=
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args.foldl (fun r a => r ++ " " ++ format a) Format.nil
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private def formatLitVal : LitVal → Format
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| (LitVal.num v) := format v
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| (LitVal.str v) := format (repr v)
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instance litValHasFormat : HasFormat LitVal := ⟨formatLitVal⟩
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private def formatCtorInfo : CtorInfo → Format
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| { name := name, cidx := cidx, usize := usize, ssize := ssize, .. } :=
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let r := format "ctor_" ++ format cidx;
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let r := if usize > 0 || ssize > 0 then r ++ "." ++ format usize ++ "." ++ format ssize else r;
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let r := if name != Name.anonymous then r ++ "[" ++ format name ++ "]" else r;
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r
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instance ctorInfoHasFormat : HasFormat CtorInfo := ⟨formatCtorInfo⟩
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private def formatExpr : Expr → Format
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| (Expr.ctor i ys) := format i ++ formatArray ys
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| (Expr.reset n x) := "reset[" ++ format n ++ "] " ++ format x
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| (Expr.reuse x i u ys) := "reuse" ++ (if u then "!" else "") ++ " " ++ format x ++ " in " ++ format i ++ formatArray ys
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| (Expr.proj i x) := "proj[" ++ format i ++ "] " ++ format x
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| (Expr.uproj i x) := "uproj[" ++ format i ++ "] " ++ format x
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| (Expr.sproj n o x) := "sproj[" ++ format n ++ ", " ++ format o ++ "] " ++ format x
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| (Expr.fap c ys) := format c ++ formatArray ys
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| (Expr.pap c ys) := "pap " ++ format c ++ formatArray ys
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| (Expr.ap x ys) := "app " ++ format x ++ formatArray ys
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| (Expr.box _ x) := "box " ++ format x
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| (Expr.unbox x) := "unbox " ++ format x
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| (Expr.lit v) := format v
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| (Expr.isShared x) := "isShared " ++ format x
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| (Expr.isTaggedPtr x) := "isTaggedPtr " ++ format x
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instance exprHasFormat : HasFormat Expr := ⟨formatExpr⟩
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instance exprHasToString : HasToString Expr := ⟨fun e => Format.pretty (format e)⟩
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private def formatIRType : IRType → Format
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| IRType.float := "float"
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| IRType.uint8 := "u8"
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| IRType.uint16 := "u16"
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| IRType.uint32 := "u32"
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| IRType.uint64 := "u64"
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| IRType.usize := "usize"
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| IRType.irrelevant := "◾"
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| IRType.object := "obj"
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| IRType.tobject := "tobj"
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instance typeHasFormat : HasFormat IRType := ⟨formatIRType⟩
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private def formatParam : Param → Format
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| { x := name, borrow := b, ty := ty } := "(" ++ format name ++ " : " ++ (if b then "@& " else "") ++ format ty ++ ")"
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instance paramHasFormat : HasFormat Param := ⟨formatParam⟩
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def formatAlt (fmt : FnBody → Format) (indent : Nat) : Alt → Format
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| (Alt.ctor i b) := format i.name ++ " →" ++ Format.nest indent (Format.line ++ fmt b)
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| (Alt.default b) := "default →" ++ Format.nest indent (Format.line ++ fmt b)
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def formatParams (ps : Array Param) : Format :=
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formatArray ps
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partial def formatFnBody (indent : Nat := 2) : FnBody → Format
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| (FnBody.vdecl x ty e b) := "let " ++ format x ++ " : " ++ format ty ++ " := " ++ format e ++ ";" ++ Format.line ++ formatFnBody b
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| (FnBody.jdecl j xs v b) := format j ++ formatParams xs ++ " :=" ++ Format.nest indent (Format.line ++ formatFnBody v) ++ ";" ++ Format.line ++ formatFnBody b
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| (FnBody.set x i y b) := "set " ++ format x ++ "[" ++ format i ++ "] := " ++ format y ++ ";" ++ Format.line ++ formatFnBody b
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| (FnBody.uset x i y b) := "uset " ++ format x ++ "[" ++ format i ++ "] := " ++ format y ++ ";" ++ Format.line ++ formatFnBody b
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| (FnBody.sset x i o y ty b) := "sset " ++ format x ++ "[" ++ format i ++ ", " ++ format o ++ "] : " ++ format ty ++ " := " ++ format y ++ ";" ++ Format.line ++ formatFnBody b
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| (FnBody.setTag x cidx b) := "setTag " ++ format x ++ " := " ++ format cidx ++ ";" ++ Format.line ++ formatFnBody b
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| (FnBody.inc x n c b) := "inc" ++ (if n != 1 then Format.sbracket (format n) else "") ++ " " ++ format x ++ ";" ++ Format.line ++ formatFnBody b
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| (FnBody.dec x n c b) := "dec" ++ (if n != 1 then Format.sbracket (format n) else "") ++ " " ++ format x ++ ";" ++ Format.line ++ formatFnBody b
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| (FnBody.del x b) := "del " ++ format x ++ ";" ++ Format.line ++ formatFnBody b
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| (FnBody.mdata d b) := "mdata " ++ format d ++ ";" ++ Format.line ++ formatFnBody b
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| (FnBody.case tid x cs) := "case " ++ format x ++ " of" ++ cs.foldl (fun r c => r ++ Format.line ++ formatAlt formatFnBody indent c) Format.nil
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| (FnBody.jmp j ys) := "jmp " ++ format j ++ formatArray ys
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| (FnBody.ret x) := "ret " ++ format x
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| FnBody.unreachable := "⊥"
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instance fnBodyHasFormat : HasFormat FnBody := ⟨formatFnBody⟩
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instance fnBodyHasToString : HasToString FnBody := ⟨fun b => (format b).pretty⟩
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def formatDecl (indent : Nat := 2) : Decl → Format
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| (Decl.fdecl f xs ty b) := "def " ++ format f ++ formatParams xs ++ format " : " ++ format ty ++ " :=" ++ Format.nest indent (Format.line ++ formatFnBody indent b)
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| (Decl.extern f xs ty _) := "extern " ++ format f ++ formatParams xs ++ format " : " ++ format ty
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instance declHasFormat : HasFormat Decl := ⟨formatDecl⟩
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@[export lean.ir.decl_to_string_core]
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def declToString (d : Decl) : String :=
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(format d).pretty
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instance declHasToString : HasToString Decl := ⟨declToString⟩
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end IR
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end Lean
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