555 lines
23 KiB
Text
555 lines
23 KiB
Text
/-
|
||
Copyright (c) 2019 Microsoft Corporation. All rights reserved.
|
||
Released under Apache 2.0 license as described in the file LICENSE.
|
||
Authors: Leonardo de Moura
|
||
-/
|
||
prelude
|
||
import init.system.io
|
||
import init.util
|
||
import init.data.bytearray
|
||
import init.lean.declaration
|
||
import init.lean.smap
|
||
import init.lean.path
|
||
import init.lean.localcontext
|
||
|
||
namespace Lean
|
||
/- Opaque environment extension state. It is essentially the Lean version of a C `void *`
|
||
TODO: mark opaque -/
|
||
def EnvExtensionState : Type := NonScalar
|
||
|
||
instance EnvExtensionState.inhabited : Inhabited EnvExtensionState := inferInstanceAs (Inhabited NonScalar)
|
||
|
||
/- TODO: mark opaque. -/
|
||
def ModuleIdx := Nat
|
||
|
||
instance ModuleIdx.inhabited : Inhabited ModuleIdx := inferInstanceAs (Inhabited Nat)
|
||
|
||
abbrev ConstMap := SMap Name ConstantInfo Name.quickLt
|
||
|
||
/- Environment fields that are not used often. -/
|
||
structure EnvironmentHeader :=
|
||
(trustLevel : UInt32 := 0)
|
||
(quotInit : Bool := false)
|
||
(mainModule : Name := default _)
|
||
(imports : Array Name := Array.empty)
|
||
|
||
/- TODO: mark opaque. -/
|
||
structure Environment :=
|
||
(const2ModIdx : HashMap Name ModuleIdx)
|
||
(constants : ConstMap)
|
||
(extensions : Array EnvExtensionState)
|
||
(header : EnvironmentHeader := {})
|
||
|
||
namespace Environment
|
||
|
||
instance : Inhabited Environment :=
|
||
⟨{ const2ModIdx := {}, constants := {}, extensions := Array.empty }⟩
|
||
|
||
def addAux (env : Environment) (cinfo : ConstantInfo) : Environment :=
|
||
{ constants := env.constants.insert cinfo.name cinfo, .. env }
|
||
|
||
@[export lean.environment_find_core]
|
||
def find (env : Environment) (n : Name) : Option ConstantInfo :=
|
||
/- It is safe to use `find'` because we never overwrite imported declarations. -/
|
||
env.constants.find' n
|
||
|
||
def contains (env : Environment) (n : Name) : Bool :=
|
||
env.constants.contains n
|
||
|
||
def imports (env : Environment) : Array Name :=
|
||
env.header.imports
|
||
|
||
@[export lean.environment_set_main_module_core]
|
||
def setMainModule (env : Environment) (m : Name) : Environment :=
|
||
{ header := { mainModule := m, .. env.header }, .. env }
|
||
|
||
@[export lean.environment_main_module_core]
|
||
def mainModule (env : Environment) : Name :=
|
||
env.header.mainModule
|
||
|
||
@[export lean.environment_mark_quot_init_core]
|
||
private def markQuotInit (env : Environment) : Environment :=
|
||
{ header := { quotInit := true, .. env.header } , .. env }
|
||
|
||
@[export lean.environment_quot_init_core]
|
||
private def isQuotInit (env : Environment) : Bool :=
|
||
env.header.quotInit
|
||
|
||
@[export lean.environment_trust_level_core]
|
||
private def getTrustLevel (env : Environment) : UInt32 :=
|
||
env.header.trustLevel
|
||
|
||
def getModuleIdxFor (env : Environment) (c : Name) : Option ModuleIdx :=
|
||
env.const2ModIdx.find c
|
||
|
||
def isConstructor (env : Environment) (c : Name) : Bool :=
|
||
match env.find c with
|
||
| ConstantInfo.ctorInfo _ => true
|
||
| _ => false
|
||
|
||
end Environment
|
||
|
||
inductive KernelException
|
||
| unknownConstant (env : Environment) (name : Name)
|
||
| alreadyDeclared (env : Environment) (name : Name)
|
||
| declTypeMismatch (env : Environment) (decl : Declaration) (givenType : Expr)
|
||
| declHasMVars (env : Environment) (name : Name) (expr : Expr)
|
||
| declHasFVars (env : Environment) (name : Name) (expr : Expr)
|
||
| funExpected (env : Environment) (lctx : LocalContext) (expr : Expr)
|
||
| typeExpected (env : Environment) (lctx : LocalContext) (expr : Expr)
|
||
| letTypeMismatch (env : Environment) (lctx : LocalContext) (name : Name) (givenType : Expr) (expectedType : Expr)
|
||
| exprTypeMismatch (env : Environment) (lctx : LocalContext) (expr : Expr) (expectedType : Expr)
|
||
| appTypeMismatch (env : Environment) (lctx : LocalContext) (app : Expr) (funType : Expr) (argType : Expr)
|
||
| invalidProj (env : Environment) (lctx : LocalContext) (proj : Expr)
|
||
| other (msg : String)
|
||
|
||
namespace Environment
|
||
|
||
/- Type check given declaration and add it to the environment -/
|
||
@[extern "lean_add_decl"]
|
||
constant addDecl (env : Environment) (decl : @& Declaration) : Except KernelException Environment := default _
|
||
|
||
/- Compile the given declaration, it assumes the declaration has already been added to the environment using `addDecl`. -/
|
||
@[extern "lean_compile_decl"]
|
||
constant compileDecl (env : Environment) (opt : @& Options) (decl : @& Declaration) : Except KernelException Environment := default _
|
||
|
||
def addAndCompile (env : Environment) (opt : Options) (decl : Declaration) : Except KernelException Environment :=
|
||
do env ← addDecl env decl;
|
||
compileDecl env opt decl
|
||
|
||
end Environment
|
||
|
||
/- "Raw" environment extension.
|
||
TODO: mark opaque. -/
|
||
structure EnvExtension (σ : Type) :=
|
||
(idx : Nat)
|
||
(mkInitial : IO σ)
|
||
(stateInh : σ)
|
||
|
||
namespace EnvExtension
|
||
unsafe def setStateUnsafe {σ : Type} (ext : EnvExtension σ) (env : Environment) (s : σ) : Environment :=
|
||
{ extensions := env.extensions.set ext.idx (unsafeCast s), .. env }
|
||
|
||
@[implementedBy setStateUnsafe]
|
||
constant setState {σ : Type} (ext : EnvExtension σ) (env : Environment) (s : σ) : Environment := default _
|
||
|
||
unsafe def getStateUnsafe {σ : Type} (ext : EnvExtension σ) (env : Environment) : σ :=
|
||
let s : EnvExtensionState := env.extensions.get ext.idx;
|
||
@unsafeCast _ _ ⟨ext.stateInh⟩ s
|
||
|
||
@[implementedBy getStateUnsafe]
|
||
constant getState {σ : Type} (ext : EnvExtension σ) (env : Environment) : σ := ext.stateInh
|
||
|
||
@[inline] unsafe def modifyStateUnsafe {σ : Type} (ext : EnvExtension σ) (env : Environment) (f : σ → σ) : Environment :=
|
||
{ extensions := env.extensions.modify ext.idx $ fun s =>
|
||
let s : σ := (@unsafeCast _ _ ⟨ext.stateInh⟩ s);
|
||
let s : σ := f s;
|
||
unsafeCast s,
|
||
.. env }
|
||
|
||
@[implementedBy modifyStateUnsafe]
|
||
constant modifyState {σ : Type} (ext : EnvExtension σ) (env : Environment) (f : σ → σ) : Environment := default _
|
||
|
||
end EnvExtension
|
||
|
||
private def mkEnvExtensionsRef : IO (IO.Ref (Array (EnvExtension EnvExtensionState))) :=
|
||
IO.mkRef Array.empty
|
||
|
||
@[init mkEnvExtensionsRef]
|
||
private constant envExtensionsRef : IO.Ref (Array (EnvExtension EnvExtensionState)) := default _
|
||
|
||
instance EnvExtension.Inhabited (σ : Type) [Inhabited σ] : Inhabited (EnvExtension σ) :=
|
||
⟨{ idx := 0, stateInh := default _, mkInitial := default _ }⟩
|
||
|
||
unsafe def registerEnvExtensionUnsafe {σ : Type} [Inhabited σ] (mkInitial : IO σ) : IO (EnvExtension σ) :=
|
||
do
|
||
initializing ← IO.initializing;
|
||
unless initializing $ throw (IO.userError ("failed to register environment, extensions can only be registered during initialization"));
|
||
exts ← envExtensionsRef.get;
|
||
let idx := exts.size;
|
||
let ext : EnvExtension σ := {
|
||
idx := idx,
|
||
mkInitial := mkInitial,
|
||
stateInh := default _
|
||
};
|
||
envExtensionsRef.modify (fun exts => exts.push (unsafeCast ext));
|
||
pure ext
|
||
|
||
/- Environment extensions can only be registered during initialization.
|
||
Reasons:
|
||
1- Our implementation assumes the number of extensions does not change after an environment object is created.
|
||
2- We do not use any synchronization primitive to access `envExtensionsRef`. -/
|
||
@[implementedBy registerEnvExtensionUnsafe]
|
||
constant registerEnvExtension {σ : Type} [Inhabited σ] (mkInitial : IO σ) : IO (EnvExtension σ) := default _
|
||
|
||
private def mkInitialExtensionStates : IO (Array EnvExtensionState) :=
|
||
do exts ← envExtensionsRef.get; exts.mmap $ fun ext => ext.mkInitial
|
||
|
||
@[export lean.mk_empty_environment_core]
|
||
def mkEmptyEnvironment (trustLevel : UInt32 := 0) : IO Environment :=
|
||
do
|
||
initializing ← IO.initializing;
|
||
when initializing $ throw (IO.userError "environment objects cannot be created during initialization");
|
||
exts ← mkInitialExtensionStates;
|
||
pure { const2ModIdx := {},
|
||
constants := {},
|
||
header := { trustLevel := trustLevel },
|
||
extensions := exts }
|
||
|
||
structure PersistentEnvExtensionState (α : Type) (σ : Type) :=
|
||
(importedEntries : Array (Array α)) -- entries per imported module
|
||
(state : σ)
|
||
|
||
/- An environment extension with support for storing/retrieving entries from a .olean file.
|
||
- α is the entry type.
|
||
- σ is the actual state.
|
||
|
||
TODO: mark opaque. -/
|
||
structure PersistentEnvExtension (α : Type) (σ : Type) extends EnvExtension (PersistentEnvExtensionState α σ) :=
|
||
(name : Name)
|
||
(addImportedFn : Array (Array α) → IO σ)
|
||
(addEntryFn : σ → α → σ)
|
||
(exportEntriesFn : σ → Array α)
|
||
(statsFn : σ → Format)
|
||
|
||
/- Opaque persistent environment extension entry. It is essentially a C `void *`
|
||
TODO: mark opaque -/
|
||
def EnvExtensionEntry := NonScalar
|
||
|
||
instance EnvExtensionEntry.inhabited : Inhabited EnvExtensionEntry := inferInstanceAs (Inhabited NonScalar)
|
||
|
||
instance PersistentEnvExtensionState.inhabited {α σ} [Inhabited σ] : Inhabited (PersistentEnvExtensionState α σ) :=
|
||
⟨{importedEntries := Array.empty, state := default _ }⟩
|
||
|
||
instance PersistentEnvExtension.inhabited {α σ} [Inhabited σ] : Inhabited (PersistentEnvExtension α σ) :=
|
||
⟨{ toEnvExtension := { idx := 0, stateInh := default _, mkInitial := default _ },
|
||
name := default _,
|
||
addImportedFn := fun _ => default _,
|
||
addEntryFn := fun s _ => s,
|
||
exportEntriesFn := fun _ => Array.empty,
|
||
statsFn := fun _ => Format.nil }⟩
|
||
|
||
namespace PersistentEnvExtension
|
||
|
||
def getModuleEntries {α σ : Type} (ext : PersistentEnvExtension α σ) (env : Environment) (m : ModuleIdx) : Array α :=
|
||
(ext.toEnvExtension.getState env).importedEntries.get m
|
||
|
||
def addEntry {α σ : Type} (ext : PersistentEnvExtension α σ) (env : Environment) (a : α) : Environment :=
|
||
ext.toEnvExtension.modifyState env $ fun s =>
|
||
let state := ext.addEntryFn s.state a;
|
||
{ state := state, .. s }
|
||
|
||
def getState {α σ : Type} (ext : PersistentEnvExtension α σ) (env : Environment) : σ :=
|
||
(ext.toEnvExtension.getState env).state
|
||
|
||
def setState {α σ : Type} (ext : PersistentEnvExtension α σ) (env : Environment) (s : σ) : Environment :=
|
||
ext.toEnvExtension.modifyState env $ fun ps => { state := s, .. ps }
|
||
|
||
def modifyState {α σ : Type} (ext : PersistentEnvExtension α σ) (env : Environment) (f : σ → σ) : Environment :=
|
||
ext.toEnvExtension.modifyState env $ fun ps => { state := f (ps.state), .. ps }
|
||
|
||
end PersistentEnvExtension
|
||
|
||
private def mkPersistentEnvExtensionsRef : IO (IO.Ref (Array (PersistentEnvExtension EnvExtensionEntry EnvExtensionState))) :=
|
||
IO.mkRef Array.empty
|
||
|
||
@[init mkPersistentEnvExtensionsRef]
|
||
private constant persistentEnvExtensionsRef : IO.Ref (Array (PersistentEnvExtension EnvExtensionEntry EnvExtensionState)) := default _
|
||
|
||
structure PersistentEnvExtensionDescr (α σ : Type) :=
|
||
(name : Name)
|
||
(addImportedFn : Array (Array α) → IO σ)
|
||
(addEntryFn : σ → α → σ)
|
||
(exportEntriesFn : σ → Array α)
|
||
(statsFn : σ → Format := fun _ => Format.nil)
|
||
|
||
unsafe def registerPersistentEnvExtensionUnsafe {α σ : Type} [Inhabited σ] (descr : PersistentEnvExtensionDescr α σ) : IO (PersistentEnvExtension α σ) :=
|
||
do
|
||
pExts ← persistentEnvExtensionsRef.get;
|
||
when (pExts.any (fun ext => ext.name == descr.name)) $ throw (IO.userError ("invalid environment extension, '" ++ toString descr.name ++ "' has already been used"));
|
||
ext ← registerEnvExtension (do
|
||
state ← descr.addImportedFn Array.empty;
|
||
let s : PersistentEnvExtensionState α σ := {
|
||
importedEntries := Array.empty,
|
||
state := state
|
||
};
|
||
pure s);
|
||
let pExt : PersistentEnvExtension α σ := {
|
||
toEnvExtension := ext,
|
||
name := descr.name,
|
||
addImportedFn := descr.addImportedFn,
|
||
addEntryFn := descr.addEntryFn,
|
||
exportEntriesFn := descr.exportEntriesFn,
|
||
statsFn := descr.statsFn
|
||
};
|
||
persistentEnvExtensionsRef.modify (fun pExts => pExts.push (unsafeCast pExt));
|
||
pure pExt
|
||
|
||
@[implementedBy registerPersistentEnvExtensionUnsafe]
|
||
constant registerPersistentEnvExtension {α σ : Type} [Inhabited σ] (descr : PersistentEnvExtensionDescr α σ) : IO (PersistentEnvExtension α σ) := default _
|
||
|
||
/- Simple PersistentEnvExtension that implements exportEntriesFn using a list of entries. -/
|
||
|
||
def SimplePersistentEnvExtension (α σ : Type) := PersistentEnvExtension α (List α × σ)
|
||
|
||
@[specialize] def mkStateFromImportedEntries {α σ : Type} (addEntryFn : σ → α → σ) (initState : σ) (as : Array (Array α)) : σ :=
|
||
as.foldl (fun r es => es.foldl (fun r e => addEntryFn r e) r) initState
|
||
|
||
structure SimplePersistentEnvExtensionDescr (α σ : Type) :=
|
||
(name : Name)
|
||
(addEntryFn : σ → α → σ)
|
||
(addImportedFn : Array (Array α) → σ)
|
||
(toArrayFn : List α → Array α := fun es => es.toArray)
|
||
|
||
def registerSimplePersistentEnvExtension {α σ : Type} [Inhabited σ] (descr : SimplePersistentEnvExtensionDescr α σ) : IO (SimplePersistentEnvExtension α σ) :=
|
||
registerPersistentEnvExtension {
|
||
name := descr.name,
|
||
addImportedFn := fun as => pure ([], descr.addImportedFn as),
|
||
addEntryFn := fun s e => match s with
|
||
| (entries, s) => (e::entries, descr.addEntryFn s e),
|
||
exportEntriesFn := fun s => descr.toArrayFn s.1.reverse,
|
||
statsFn := fun s => format "number of local entries: " ++ format s.1.length
|
||
}
|
||
|
||
namespace SimplePersistentEnvExtension
|
||
|
||
instance {α σ : Type} [Inhabited σ] : Inhabited (SimplePersistentEnvExtension α σ) :=
|
||
inferInstanceAs (Inhabited (PersistentEnvExtension α (List α × σ)))
|
||
|
||
def getEntries {α σ : Type} (ext : SimplePersistentEnvExtension α σ) (env : Environment) : List α :=
|
||
(PersistentEnvExtension.getState ext env).1
|
||
|
||
def getState {α σ : Type} (ext : SimplePersistentEnvExtension α σ) (env : Environment) : σ :=
|
||
(PersistentEnvExtension.getState ext env).2
|
||
|
||
def setState {α σ : Type} (ext : SimplePersistentEnvExtension α σ) (env : Environment) (s : σ) : Environment :=
|
||
PersistentEnvExtension.modifyState ext env (fun ⟨entries, _⟩ => (entries, s))
|
||
|
||
def modifyState {α σ : Type} (ext : SimplePersistentEnvExtension α σ) (env : Environment) (f : σ → σ) : Environment :=
|
||
PersistentEnvExtension.modifyState ext env (fun ⟨entries, s⟩ => (entries, f s))
|
||
|
||
end SimplePersistentEnvExtension
|
||
|
||
/- API for creating extensions in C++.
|
||
This API will eventually be deleted. -/
|
||
def CPPExtensionState := NonScalar
|
||
|
||
instance CPPExtensionState.inhabited : Inhabited CPPExtensionState := inferInstanceAs (Inhabited NonScalar)
|
||
|
||
section
|
||
/- It is not safe to use "extract closed term" optimization in the following code because of `unsafeIO`.
|
||
If `compiler.extract_closed` is set to true, then the compiler will cache the result of
|
||
`exts ← envExtensionsRef.get` during initialization which is incorrect. -/
|
||
set_option compiler.extract_closed false
|
||
@[export lean.register_extension_core]
|
||
unsafe def registerCPPExtension (initial : CPPExtensionState) : Option Nat :=
|
||
(unsafeIO (do ext ← registerEnvExtension (pure initial); pure ext.idx)).toOption
|
||
|
||
@[export lean.set_extension_core]
|
||
unsafe def setCPPExtensionState (env : Environment) (idx : Nat) (s : CPPExtensionState) : Option Environment :=
|
||
(unsafeIO (do exts ← envExtensionsRef.get; pure $ (exts.get idx).setState env s)).toOption
|
||
|
||
@[export lean.get_extension_core]
|
||
unsafe def getCPPExtensionState (env : Environment) (idx : Nat) : Option CPPExtensionState :=
|
||
(unsafeIO (do exts ← envExtensionsRef.get; pure $ (exts.get idx).getState env)).toOption
|
||
end
|
||
|
||
/- Legacy support for Modification objects -/
|
||
|
||
/- Opaque modification object. It is essentially a C `void *`.
|
||
In Lean 3, a .olean file is essentially a collection of modification objects.
|
||
This type represents the modification objects implemented in C++.
|
||
We will eventually delete this type as soon as we port the remaining Lean 3
|
||
legacy code.
|
||
|
||
TODO: mark opaque -/
|
||
def Modification := NonScalar
|
||
|
||
instance Modification.inhabited : Inhabited Modification := inferInstanceAs (Inhabited NonScalar)
|
||
|
||
def regModListExtension : IO (EnvExtension (List Modification)) :=
|
||
registerEnvExtension (pure [])
|
||
|
||
@[init regModListExtension]
|
||
constant modListExtension : EnvExtension (List Modification) := default _
|
||
|
||
/- The C++ code uses this function to store the given modification object into the environment. -/
|
||
@[export lean.environment_add_modification_core]
|
||
def addModification (env : Environment) (mod : Modification) : Environment :=
|
||
modListExtension.modifyState env $ fun mods => mod :: mods
|
||
|
||
/- mkModuleData invokes this function to convert a list of modification objects into
|
||
a serialized byte array. -/
|
||
@[extern 2 "lean_serialize_modifications"]
|
||
constant serializeModifications : List Modification → IO ByteArray := default _
|
||
|
||
@[extern 3 "lean_perform_serialized_modifications"]
|
||
constant performModifications : Environment → ByteArray → IO Environment := default _
|
||
|
||
/- Content of a .olean file.
|
||
We use `compact.cpp` to generate the image of this object in disk. -/
|
||
structure ModuleData :=
|
||
(imports : Array Name)
|
||
(constants : Array ConstantInfo)
|
||
(entries : Array (Name × Array EnvExtensionEntry))
|
||
(serialized : ByteArray) -- Legacy support: serialized modification objects
|
||
|
||
instance ModuleData.inhabited : Inhabited ModuleData :=
|
||
⟨{imports := default _, constants := default _, entries := default _, serialized := default _}⟩
|
||
|
||
@[extern 3 "lean_save_module_data"]
|
||
constant saveModuleData (fname : @& String) (m : ModuleData) : IO Unit := default _
|
||
@[extern 2 "lean_read_module_data"]
|
||
constant readModuleData (fname : @& String) : IO ModuleData := default _
|
||
|
||
def mkModuleData (env : Environment) : IO ModuleData :=
|
||
do
|
||
pExts ← persistentEnvExtensionsRef.get;
|
||
let entries : Array (Name × Array EnvExtensionEntry) := pExts.size.fold
|
||
(fun i result =>
|
||
let state := (pExts.get i).getState env;
|
||
let exportEntriesFn := (pExts.get i).exportEntriesFn;
|
||
let extName := (pExts.get i).name;
|
||
result.push (extName, exportEntriesFn state))
|
||
Array.empty;
|
||
bytes ← serializeModifications (modListExtension.getState env);
|
||
pure {
|
||
imports := env.header.imports,
|
||
constants := env.constants.foldStage2 (fun cs _ c => cs.push c) Array.empty,
|
||
entries := entries,
|
||
serialized := bytes
|
||
}
|
||
|
||
@[export lean.write_module_core]
|
||
def writeModule (env : Environment) (fname : String) : IO Unit :=
|
||
do modData ← mkModuleData env; saveModuleData fname modData
|
||
|
||
partial def importModulesAux : List Name → (NameSet × Array ModuleData) → IO (NameSet × Array ModuleData)
|
||
| [], r => pure r
|
||
| m::ms, (s, mods) =>
|
||
if s.contains m then
|
||
importModulesAux ms (s, mods)
|
||
else do
|
||
let s := s.insert m;
|
||
mFile ← findOLean m;
|
||
mod ← readModuleData mFile;
|
||
(s, mods) ← importModulesAux mod.imports.toList (s, mods);
|
||
let mods := mods.push mod;
|
||
importModulesAux ms (s, mods)
|
||
|
||
private partial def getEntriesFor (mod : ModuleData) (extId : Name) : Nat → Array EnvExtensionState
|
||
| i =>
|
||
if i < mod.entries.size then
|
||
let curr := mod.entries.get i;
|
||
if curr.1 == extId then curr.2 else getEntriesFor (i+1)
|
||
else
|
||
Array.empty
|
||
|
||
private def setImportedEntries (env : Environment) (mods : Array ModuleData) : IO Environment :=
|
||
do
|
||
pExtDescrs ← persistentEnvExtensionsRef.get;
|
||
pure $ mods.iterate env $ fun _ mod env =>
|
||
pExtDescrs.iterate env $ fun _ extDescr env =>
|
||
let entries := getEntriesFor mod extDescr.name 0;
|
||
extDescr.toEnvExtension.modifyState env $ fun s =>
|
||
{ importedEntries := s.importedEntries.push entries,
|
||
.. s }
|
||
|
||
private def finalizePersistentExtensions (env : Environment) : IO Environment :=
|
||
do
|
||
pExtDescrs ← persistentEnvExtensionsRef.get;
|
||
pExtDescrs.miterate env $ fun _ extDescr env => do
|
||
let s := extDescr.toEnvExtension.getState env;
|
||
newState ← extDescr.addImportedFn s.importedEntries;
|
||
pure $ extDescr.toEnvExtension.setState env { state := newState, .. s }
|
||
|
||
@[export lean.import_modules_core]
|
||
def importModules (modNames : List Name) (trustLevel : UInt32 := 0) : IO Environment :=
|
||
do
|
||
(_, mods) ← importModulesAux modNames ({}, Array.empty);
|
||
let const2ModIdx := mods.iterate {} $ fun (modIdx) (mod : ModuleData) (m : HashMap Name ModuleIdx) =>
|
||
mod.constants.iterate m $ fun _ cinfo m =>
|
||
m.insert cinfo.name modIdx.val;
|
||
constants ← mods.miterate SMap.empty $ fun _ (mod : ModuleData) (cs : ConstMap) =>
|
||
mod.constants.miterate cs $ fun _ cinfo cs => do {
|
||
when (cs.contains cinfo.name) $ throw (IO.userError ("import failed, environment already contains '" ++ toString cinfo.name ++ "'"));
|
||
pure $ cs.insert cinfo.name cinfo
|
||
};
|
||
let constants := constants.switch;
|
||
exts ← mkInitialExtensionStates;
|
||
let env : Environment := {
|
||
const2ModIdx := const2ModIdx,
|
||
constants := constants,
|
||
extensions := exts,
|
||
header := {
|
||
quotInit := !modNames.isEmpty, -- We assume `core.lean` initializes quotient module
|
||
trustLevel := trustLevel,
|
||
imports := modNames.toArray
|
||
}
|
||
};
|
||
env ← setImportedEntries env mods;
|
||
env ← finalizePersistentExtensions env;
|
||
env ← mods.miterate env $ fun _ mod env => performModifications env mod.serialized;
|
||
pure env
|
||
|
||
def regNamespacesExtension : IO (SimplePersistentEnvExtension Name NameSet) :=
|
||
registerSimplePersistentEnvExtension {
|
||
name := `namespaces,
|
||
addImportedFn := fun as => mkStateFromImportedEntries NameSet.insert {} as,
|
||
addEntryFn := fun s n => s.insert n
|
||
}
|
||
|
||
@[init regNamespacesExtension]
|
||
constant namespacesExt : SimplePersistentEnvExtension Name NameSet := default _
|
||
|
||
def registerNamespace (env : Environment) (n : Name) : Environment :=
|
||
if (namespacesExt.getState env).contains n then env else namespacesExt.addEntry env n
|
||
|
||
def isNamespace (env : Environment) (n : Name) : Bool :=
|
||
(namespacesExt.getState env).contains n
|
||
|
||
def getNamespaceSet (env : Environment) : NameSet :=
|
||
namespacesExt.getState env
|
||
|
||
namespace Environment
|
||
|
||
private def isNamespaceName : Name → Bool
|
||
| Name.mkString Name.anonymous _ => true
|
||
| Name.mkString p _ => isNamespaceName p
|
||
| _ => false
|
||
|
||
private def registerNamePrefixes : Environment → Name → Environment
|
||
| env, Name.mkString p _ => if isNamespaceName p then registerNamePrefixes (registerNamespace env p) p else env
|
||
| env, _ => env
|
||
|
||
@[export lean.environment_add_core]
|
||
def add (env : Environment) (cinfo : ConstantInfo) : Environment :=
|
||
let env := registerNamePrefixes env cinfo.name;
|
||
env.addAux cinfo
|
||
|
||
@[export lean.display_stats_core]
|
||
def displayStats (env : Environment) : IO Unit :=
|
||
do
|
||
pExtDescrs ← persistentEnvExtensionsRef.get;
|
||
let numModules := ((pExtDescrs.get 0).toEnvExtension.getState env).importedEntries.size;
|
||
IO.println ("direct imports: " ++ toString env.header.imports);
|
||
IO.println ("number of imported modules: " ++ toString numModules);
|
||
IO.println ("number of consts: " ++ toString env.constants.size);
|
||
IO.println ("number of imported consts: " ++ toString env.constants.stageSizes.1);
|
||
IO.println ("number of local consts: " ++ toString env.constants.stageSizes.2);
|
||
IO.println ("number of buckets for imported consts: " ++ toString env.constants.numBuckets);
|
||
IO.println ("map depth for local consts: " ++ toString env.constants.maxDepth);
|
||
IO.println ("trust level: " ++ toString env.header.trustLevel);
|
||
IO.println ("number of extensions: " ++ toString env.extensions.size);
|
||
pExtDescrs.mfor $ fun extDescr => do {
|
||
IO.println ("extension '" ++ toString extDescr.name ++ "'");
|
||
let s := extDescr.toEnvExtension.getState env;
|
||
let fmt := extDescr.statsFn s.state;
|
||
unless fmt.isNil (IO.println (" " ++ toString (Format.nest 2 (extDescr.statsFn s.state))));
|
||
IO.println (" number of imported entries: " ++ toString (s.importedEntries.foldl (fun sum es => sum + es.size) 0));
|
||
pure ()
|
||
};
|
||
pure ()
|
||
|
||
end Environment
|
||
end Lean
|