cf3b8d4eb4
Make the code style more uniform. We still have a lot of leftovers from the old frontend.
78 lines
3.4 KiB
Text
78 lines
3.4 KiB
Text
/-
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Copyright (c) 2020 Sebastian Ullrich. All rights reserved.
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Released under Apache 2.0 license as described in the file LICENSE.
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Authors: Sebastian Ullrich
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-/
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import Lean.PrettyPrinter.Delaborator
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import Lean.PrettyPrinter.Parenthesizer
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import Lean.PrettyPrinter.Formatter
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import Lean.Parser.Module
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import Lean.ParserCompiler
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namespace Lean
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def PPContext.runCoreM {α : Type} (ppCtx : PPContext) (x : CoreM α) : IO α :=
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Prod.fst <$> x.toIO { options := ppCtx.opts, currNamespace := ppCtx.currNamespace, openDecls := ppCtx.openDecls }
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{ env := ppCtx.env, ngen := { namePrefix := `_pp_uniq } }
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def PPContext.runMetaM {α : Type} (ppCtx : PPContext) (x : MetaM α) : IO α :=
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ppCtx.runCoreM <| x.run' { lctx := ppCtx.lctx } { mctx := ppCtx.mctx }
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namespace PrettyPrinter
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def ppTerm (stx : Syntax) : CoreM Format := do
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let opts ← getOptions
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let stx := (sanitizeSyntax stx).run' { options := opts }
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parenthesizeTerm stx >>= formatTerm
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def ppExpr (currNamespace : Name) (openDecls : List OpenDecl) (e : Expr) : MetaM Format := do
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let lctx ← getLCtx
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let opts ← getOptions
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let lctx := lctx.sanitizeNames.run' { options := opts }
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Meta.withLCtx lctx #[] do
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let stx ← delab currNamespace openDecls e
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ppTerm stx
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@[export lean_pp_expr]
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def ppExprLegacy (env : Environment) (mctx : MetavarContext) (lctx : LocalContext) (opts : Options) (e : Expr) : IO Format :=
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Prod.fst <$> ((ppExpr Name.anonymous [] e).run' { lctx := lctx } { mctx := mctx }).toIO { options := opts } { env := env }
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def ppCommand (stx : Syntax) : CoreM Format :=
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parenthesizeCommand stx >>= formatCommand
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def ppModule (stx : Syntax) : CoreM Format := do
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parenthesize Lean.Parser.Module.module.parenthesizer stx >>= format Lean.Parser.Module.module.formatter
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private partial def noContext : MessageData → MessageData
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| MessageData.withContext ctx msg => noContext msg
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| MessageData.withNamingContext ctx msg => MessageData.withNamingContext ctx (noContext msg)
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| MessageData.nest n msg => MessageData.nest n (noContext msg)
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| MessageData.group msg => MessageData.group (noContext msg)
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| MessageData.compose msg₁ msg₂ => MessageData.compose (noContext msg₁) (noContext msg₂)
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| MessageData.tagged tag msg => MessageData.tagged tag (noContext msg)
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| MessageData.node msgs => MessageData.node (msgs.map noContext)
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| msg => msg
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-- strip context (including environments with registered pretty printers) to prevent infinite recursion when pretty printing pretty printer error
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private def withoutContext {m} [MonadExcept Exception m] (x : m Format) : m Format :=
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tryCatch x fun
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| Exception.error ref msg => throw <| Exception.error ref (noContext msg)
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| ex => throw ex
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builtin_initialize
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ppFnsRef.set {
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ppExpr := fun ctx e => ctx.runMetaM <| withoutContext <| ppExpr ctx.currNamespace ctx.openDecls e,
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ppTerm := fun ctx stx => ctx.runCoreM <| withoutContext <| ppTerm stx,
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ppGoal := fun ctx mvarId => ctx.runMetaM <| withoutContext <| Meta.ppGoal mvarId
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}
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builtin_initialize
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registerTraceClass `PrettyPrinter
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@[builtinInit]
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unsafe def registerParserCompilers : IO Unit := do
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ParserCompiler.registerParserCompiler ⟨`parenthesizer, parenthesizerAttribute, combinatorParenthesizerAttribute⟩
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ParserCompiler.registerParserCompiler ⟨`formatter, formatterAttribute, combinatorFormatterAttribute⟩
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end PrettyPrinter
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end Lean
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