Files
Nim/compiler/ic/ic.nim
Andreas Rumpf 6c1c8f51b3 IC: green tests (#17311)
* IC: renamed to_packed_ast module to ic module

* IC: don't store the --forceBuild flag, makes it easier to test

* IC: enable hello world test

* Codegen: refactorings for IC; changed the name mangling algorithm

* fixed the HCR regressions

* life is too short for HCR

* tconvexhull is now allowed to use deepCopy

* IC exposed a stdlib bug, required a refactoring

* codegen: code cleanups

* IC: even if a module is outdated, its dependencies might come from disk

* IC: progress

* IC: better name mangling, module IDs are not stable

* IC: another refactoring helping with --ic:on --gc:arc

* disable arraymancer on Windows for the time being

* disable arraymancer altogether

* IC: make basic test work with 'nim cpp'

* IC: progress on --ic:on --gc:arc

* wip; name mangling for type info
2021-03-19 16:53:38 +01:00

1148 lines
42 KiB
Nim

#
#
# The Nim Compiler
# (c) Copyright 2020 Andreas Rumpf
#
# See the file "copying.txt", included in this
# distribution, for details about the copyright.
#
import std / [hashes, tables, intsets, sha1]
import packed_ast, bitabs, rodfiles
import ".." / [ast, idents, lineinfos, msgs, ropes, options,
pathutils, condsyms]
#import ".." / [renderer, astalgo]
from std / os import removeFile, isAbsolute
type
PackedConfig* = object
backend: TBackend
selectedGC: TGCMode
cCompiler: TSystemCC
options: TOptions
globalOptions: TGlobalOptions
PackedModule* = object ## the parts of a PackedEncoder that are part of the .rod file
definedSymbols: string
includes: seq[(LitId, string)] # first entry is the module filename itself
imports: seq[LitId] # the modules this module depends on
toReplay: PackedTree # pragmas and VM specific state to replay.
topLevel*: PackedTree # top level statements
bodies*: PackedTree # other trees. Referenced from typ.n and sym.ast by their position.
#producedGenerics*: Table[GenericKey, SymId]
exports*: seq[(LitId, int32)]
reexports*: seq[(LitId, PackedItemId)]
compilerProcs*: seq[(LitId, int32)]
converters*, methods*, trmacros*, pureEnums*: seq[int32]
macroUsages*: seq[(PackedItemId, PackedLineInfo)]
typeInstCache*: seq[(PackedItemId, PackedItemId)]
procInstCache*: seq[PackedInstantiation]
attachedOps*: seq[(TTypeAttachedOp, PackedItemId, PackedItemId)]
methodsPerType*: seq[(PackedItemId, int, PackedItemId)]
enumToStringProcs*: seq[(PackedItemId, PackedItemId)]
sh*: Shared
cfg: PackedConfig
PackedEncoder* = object
#m*: PackedModule
thisModule*: int32
lastFile*: FileIndex # remember the last lookup entry.
lastLit*: LitId
filenames*: Table[FileIndex, LitId]
pendingTypes*: seq[PType]
pendingSyms*: seq[PSym]
typeMarker*: IntSet #Table[ItemId, TypeId] # ItemId.item -> TypeId
symMarker*: IntSet #Table[ItemId, SymId] # ItemId.item -> SymId
config*: ConfigRef
proc isActive*(e: PackedEncoder): bool = e.config != nil
proc disable*(e: var PackedEncoder) = e.config = nil
template primConfigFields(fn: untyped) {.dirty.} =
fn backend
fn selectedGC
fn cCompiler
fn options
fn globalOptions
proc definedSymbolsAsString(config: ConfigRef): string =
result = newStringOfCap(200)
result.add "config"
for d in definedSymbolNames(config.symbols):
result.add ' '
result.add d
proc rememberConfig(c: var PackedEncoder; m: var PackedModule; config: ConfigRef; pc: PackedConfig) =
m.definedSymbols = definedSymbolsAsString(config)
#template rem(x) =
# c.m.cfg.x = config.x
#primConfigFields rem
m.cfg = pc
proc configIdentical(m: PackedModule; config: ConfigRef): bool =
result = m.definedSymbols == definedSymbolsAsString(config)
#if not result:
# echo "A ", m.definedSymbols, " ", definedSymbolsAsString(config)
template eq(x) =
result = result and m.cfg.x == config.x
#if not result:
# echo "B ", m.cfg.x, " ", config.x
primConfigFields eq
proc rememberStartupConfig*(dest: var PackedConfig, config: ConfigRef) =
template rem(x) =
dest.x = config.x
primConfigFields rem
dest.globalOptions.excl optForceFullMake
proc hashFileCached(conf: ConfigRef; fileIdx: FileIndex): string =
result = msgs.getHash(conf, fileIdx)
if result.len == 0:
let fullpath = msgs.toFullPath(conf, fileIdx)
result = $secureHashFile(fullpath)
msgs.setHash(conf, fileIdx, result)
proc toLitId(x: FileIndex; c: var PackedEncoder; m: var PackedModule): LitId =
## store a file index as a literal
if x == c.lastFile:
result = c.lastLit
else:
result = c.filenames.getOrDefault(x)
if result == LitId(0):
let p = msgs.toFullPath(c.config, x)
result = getOrIncl(m.sh.strings, p)
c.filenames[x] = result
c.lastFile = x
c.lastLit = result
assert result != LitId(0)
proc toFileIndex*(x: LitId; m: PackedModule; config: ConfigRef): FileIndex =
result = msgs.fileInfoIdx(config, AbsoluteFile m.sh.strings[x])
proc includesIdentical(m: var PackedModule; config: ConfigRef): bool =
for it in mitems(m.includes):
if hashFileCached(config, toFileIndex(it[0], m, config)) != it[1]:
return false
result = true
proc initEncoder*(c: var PackedEncoder; m: var PackedModule; moduleSym: PSym; config: ConfigRef; pc: PackedConfig) =
## setup a context for serializing to packed ast
m.sh = Shared()
c.thisModule = moduleSym.itemId.module
c.config = config
m.bodies = newTreeFrom(m.topLevel)
m.toReplay = newTreeFrom(m.topLevel)
let thisNimFile = FileIndex c.thisModule
var h = msgs.getHash(config, thisNimFile)
if h.len == 0:
let fullpath = msgs.toFullPath(config, thisNimFile)
if isAbsolute(fullpath):
# For NimScript compiler API support the main Nim file might be from a stream.
h = $secureHashFile(fullpath)
msgs.setHash(config, thisNimFile, h)
m.includes.add((toLitId(thisNimFile, c, m), h)) # the module itself
rememberConfig(c, m, config, pc)
proc addIncludeFileDep*(c: var PackedEncoder; m: var PackedModule; f: FileIndex) =
m.includes.add((toLitId(f, c, m), hashFileCached(c.config, f)))
proc addImportFileDep*(c: var PackedEncoder; m: var PackedModule; f: FileIndex) =
m.imports.add toLitId(f, c, m)
proc addExported*(c: var PackedEncoder; m: var PackedModule; s: PSym) =
let nameId = getOrIncl(m.sh.strings, s.name.s)
m.exports.add((nameId, s.itemId.item))
proc addConverter*(c: var PackedEncoder; m: var PackedModule; s: PSym) =
m.converters.add(s.itemId.item)
proc addTrmacro*(c: var PackedEncoder; m: var PackedModule; s: PSym) =
m.trmacros.add(s.itemId.item)
proc addPureEnum*(c: var PackedEncoder; m: var PackedModule; s: PSym) =
assert s.kind == skType
m.pureEnums.add(s.itemId.item)
proc addMethod*(c: var PackedEncoder; m: var PackedModule; s: PSym) =
m.methods.add s.itemId.item
proc addReexport*(c: var PackedEncoder; m: var PackedModule; s: PSym) =
let nameId = getOrIncl(m.sh.strings, s.name.s)
m.reexports.add((nameId, PackedItemId(module: toLitId(s.itemId.module.FileIndex, c, m),
item: s.itemId.item)))
proc addCompilerProc*(c: var PackedEncoder; m: var PackedModule; s: PSym) =
let nameId = getOrIncl(m.sh.strings, s.name.s)
m.compilerProcs.add((nameId, s.itemId.item))
proc toPackedNode*(n: PNode; ir: var PackedTree; c: var PackedEncoder; m: var PackedModule)
proc storeSym*(s: PSym; c: var PackedEncoder; m: var PackedModule): PackedItemId
proc storeType(t: PType; c: var PackedEncoder; m: var PackedModule): PackedItemId
proc flush(c: var PackedEncoder; m: var PackedModule) =
## serialize any pending types or symbols from the context
while true:
if c.pendingTypes.len > 0:
discard storeType(c.pendingTypes.pop, c, m)
elif c.pendingSyms.len > 0:
discard storeSym(c.pendingSyms.pop, c, m)
else:
break
proc toLitId(x: string; m: var PackedModule): LitId =
## store a string as a literal
result = getOrIncl(m.sh.strings, x)
proc toLitId(x: BiggestInt; m: var PackedModule): LitId =
## store an integer as a literal
result = getOrIncl(m.sh.integers, x)
proc toPackedInfo(x: TLineInfo; c: var PackedEncoder; m: var PackedModule): PackedLineInfo =
PackedLineInfo(line: x.line, col: x.col, file: toLitId(x.fileIndex, c, m))
proc safeItemId(s: PSym; c: var PackedEncoder; m: var PackedModule): PackedItemId {.inline.} =
## given a symbol, produce an ItemId with the correct properties
## for local or remote symbols, packing the symbol as necessary
if s == nil or s.kind == skPackage:
result = nilItemId
#elif s.itemId.module == c.thisModule:
# result = PackedItemId(module: LitId(0), item: s.itemId.item)
else:
assert int(s.itemId.module) >= 0
result = PackedItemId(module: toLitId(s.itemId.module.FileIndex, c, m),
item: s.itemId.item)
proc addMissing(c: var PackedEncoder; p: PSym) =
## consider queuing a symbol for later addition to the packed tree
if p != nil and p.itemId.module == c.thisModule:
if p.itemId.item notin c.symMarker:
if not (sfForward in p.flags and p.kind in routineKinds):
c.pendingSyms.add p
proc addMissing(c: var PackedEncoder; p: PType) =
## consider queuing a type for later addition to the packed tree
if p != nil and p.uniqueId.module == c.thisModule:
if p.uniqueId.item notin c.typeMarker:
c.pendingTypes.add p
template storeNode(dest, src, field) =
var nodeId: NodeId
if src.field != nil:
nodeId = getNodeId(m.bodies)
toPackedNode(src.field, m.bodies, c, m)
else:
nodeId = emptyNodeId
dest.field = nodeId
proc storeTypeLater(t: PType; c: var PackedEncoder; m: var PackedModule): PackedItemId =
# We store multiple different trees in m.bodies. For this to work out, we
# cannot immediately store types/syms. We enqueue them instead to ensure
# we only write one tree into m.bodies after the other.
if t.isNil: return nilItemId
if t.uniqueId.module != c.thisModule:
# XXX Assert here that it already was serialized in the foreign module!
# it is a foreign type:
assert t.uniqueId.module >= 0
assert t.uniqueId.item > 0
return PackedItemId(module: toLitId(t.uniqueId.module.FileIndex, c, m), item: t.uniqueId.item)
assert t.itemId.module >= 0
assert t.uniqueId.item > 0
result = PackedItemId(module: toLitId(t.itemId.module.FileIndex, c, m), item: t.uniqueId.item)
addMissing(c, t)
proc storeSymLater(s: PSym; c: var PackedEncoder; m: var PackedModule): PackedItemId =
if s.isNil: return nilItemId
assert s.itemId.module >= 0
if s.itemId.module != c.thisModule:
# XXX Assert here that it already was serialized in the foreign module!
# it is a foreign symbol:
assert s.itemId.module >= 0
return PackedItemId(module: toLitId(s.itemId.module.FileIndex, c, m), item: s.itemId.item)
assert s.itemId.module >= 0
result = PackedItemId(module: toLitId(s.itemId.module.FileIndex, c, m), item: s.itemId.item)
addMissing(c, s)
proc storeType(t: PType; c: var PackedEncoder; m: var PackedModule): PackedItemId =
## serialize a ptype
if t.isNil: return nilItemId
if t.uniqueId.module != c.thisModule:
# XXX Assert here that it already was serialized in the foreign module!
# it is a foreign type:
assert t.uniqueId.module >= 0
assert t.uniqueId.item > 0
return PackedItemId(module: toLitId(t.uniqueId.module.FileIndex, c, m), item: t.uniqueId.item)
if not c.typeMarker.containsOrIncl(t.uniqueId.item):
if t.uniqueId.item >= m.sh.types.len:
setLen m.sh.types, t.uniqueId.item+1
var p = PackedType(kind: t.kind, flags: t.flags, callConv: t.callConv,
size: t.size, align: t.align, nonUniqueId: t.itemId.item,
paddingAtEnd: t.paddingAtEnd, lockLevel: t.lockLevel)
storeNode(p, t, n)
when false:
for op, s in pairs t.attachedOps:
c.addMissing s
p.attachedOps[op] = s.safeItemId(c, m)
p.typeInst = t.typeInst.storeType(c, m)
for kid in items t.sons:
p.types.add kid.storeType(c, m)
when false:
for i, s in items t.methods:
c.addMissing s
p.methods.add (i, s.safeItemId(c, m))
c.addMissing t.sym
p.sym = t.sym.safeItemId(c, m)
c.addMissing t.owner
p.owner = t.owner.safeItemId(c, m)
# fill the reserved slot, nothing else:
m.sh.types[t.uniqueId.item] = p
assert t.itemId.module >= 0
assert t.uniqueId.item > 0
result = PackedItemId(module: toLitId(t.itemId.module.FileIndex, c, m), item: t.uniqueId.item)
proc toPackedLib(l: PLib; c: var PackedEncoder; m: var PackedModule): PackedLib =
## the plib hangs off the psym via the .annex field
if l.isNil: return
result.kind = l.kind
result.generated = l.generated
result.isOverriden = l.isOverriden
result.name = toLitId($l.name, m)
storeNode(result, l, path)
proc storeSym*(s: PSym; c: var PackedEncoder; m: var PackedModule): PackedItemId =
## serialize a psym
if s.isNil: return nilItemId
assert s.itemId.module >= 0
if s.itemId.module != c.thisModule:
# XXX Assert here that it already was serialized in the foreign module!
# it is a foreign symbol:
assert s.itemId.module >= 0
return PackedItemId(module: toLitId(s.itemId.module.FileIndex, c, m), item: s.itemId.item)
if not c.symMarker.containsOrIncl(s.itemId.item):
if s.itemId.item >= m.sh.syms.len:
setLen m.sh.syms, s.itemId.item+1
assert sfForward notin s.flags
var p = PackedSym(kind: s.kind, flags: s.flags, info: s.info.toPackedInfo(c, m), magic: s.magic,
position: s.position, offset: s.offset, options: s.options,
name: s.name.s.toLitId(m))
storeNode(p, s, ast)
storeNode(p, s, constraint)
if s.kind in {skLet, skVar, skField, skForVar}:
c.addMissing s.guard
p.guard = s.guard.safeItemId(c, m)
p.bitsize = s.bitsize
p.alignment = s.alignment
p.externalName = toLitId(if s.loc.r.isNil: "" else: $s.loc.r, m)
p.locFlags = s.loc.flags
c.addMissing s.typ
p.typ = s.typ.storeType(c, m)
c.addMissing s.owner
p.owner = s.owner.safeItemId(c, m)
p.annex = toPackedLib(s.annex, c, m)
when hasFFI:
p.cname = toLitId(s.cname, m)
# fill the reserved slot, nothing else:
m.sh.syms[s.itemId.item] = p
assert s.itemId.module >= 0
result = PackedItemId(module: toLitId(s.itemId.module.FileIndex, c, m), item: s.itemId.item)
proc addModuleRef(n: PNode; ir: var PackedTree; c: var PackedEncoder; m: var PackedModule) =
## add a remote symbol reference to the tree
let info = n.info.toPackedInfo(c, m)
ir.nodes.add PackedNode(kind: nkModuleRef, operand: 3.int32, # spans 3 nodes in total
typeId: storeTypeLater(n.typ, c, m), info: info)
ir.nodes.add PackedNode(kind: nkInt32Lit, info: info,
operand: toLitId(n.sym.itemId.module.FileIndex, c, m).int32)
ir.nodes.add PackedNode(kind: nkInt32Lit, info: info,
operand: n.sym.itemId.item)
proc toPackedNode*(n: PNode; ir: var PackedTree; c: var PackedEncoder; m: var PackedModule) =
## serialize a node into the tree
if n == nil:
ir.nodes.add PackedNode(kind: nkNilRodNode, flags: {}, operand: 1)
return
let info = toPackedInfo(n.info, c, m)
case n.kind
of nkNone, nkEmpty, nkNilLit, nkType:
ir.nodes.add PackedNode(kind: n.kind, flags: n.flags, operand: 0,
typeId: storeTypeLater(n.typ, c, m), info: info)
of nkIdent:
ir.nodes.add PackedNode(kind: n.kind, flags: n.flags,
operand: int32 getOrIncl(m.sh.strings, n.ident.s),
typeId: storeTypeLater(n.typ, c, m), info: info)
of nkSym:
if n.sym.itemId.module == c.thisModule:
# it is a symbol that belongs to the module we're currently
# packing:
let id = n.sym.storeSymLater(c, m).item
ir.nodes.add PackedNode(kind: nkSym, flags: n.flags, operand: id,
typeId: storeTypeLater(n.typ, c, m), info: info)
else:
# store it as an external module reference:
addModuleRef(n, ir, c, m)
of directIntLit:
ir.nodes.add PackedNode(kind: n.kind, flags: n.flags,
operand: int32(n.intVal),
typeId: storeTypeLater(n.typ, c, m), info: info)
of externIntLit:
ir.nodes.add PackedNode(kind: n.kind, flags: n.flags,
operand: int32 getOrIncl(m.sh.integers, n.intVal),
typeId: storeTypeLater(n.typ, c, m), info: info)
of nkStrLit..nkTripleStrLit:
ir.nodes.add PackedNode(kind: n.kind, flags: n.flags,
operand: int32 getOrIncl(m.sh.strings, n.strVal),
typeId: storeTypeLater(n.typ, c, m), info: info)
of nkFloatLit..nkFloat128Lit:
ir.nodes.add PackedNode(kind: n.kind, flags: n.flags,
operand: int32 getOrIncl(m.sh.floats, n.floatVal),
typeId: storeTypeLater(n.typ, c, m), info: info)
else:
let patchPos = ir.prepare(n.kind, n.flags,
storeTypeLater(n.typ, c, m), info)
for i in 0..<n.len:
toPackedNode(n[i], ir, c, m)
ir.patch patchPos
proc storeTypeInst*(c: var PackedEncoder; m: var PackedModule; s: PSym; inst: PType) =
m.typeInstCache.add (storeSymLater(s, c, m), storeTypeLater(inst, c, m))
proc addPragmaComputation*(c: var PackedEncoder; m: var PackedModule; n: PNode) =
toPackedNode(n, m.toReplay, c, m)
proc toPackedProcDef(n: PNode; ir: var PackedTree; c: var PackedEncoder; m: var PackedModule) =
let info = toPackedInfo(n.info, c, m)
let patchPos = ir.prepare(n.kind, n.flags,
storeTypeLater(n.typ, c, m), info)
for i in 0..<n.len:
if i != bodyPos:
toPackedNode(n[i], ir, c, m)
else:
# do not serialize the body of the proc, it's unnecessary since
# n[0].sym.ast has the sem'checked variant of it which is what
# everybody should use instead.
ir.nodes.add PackedNode(kind: nkEmpty, flags: {}, operand: 0,
typeId: nilItemId, info: info)
ir.patch patchPos
proc toPackedNodeIgnoreProcDefs(n: PNode, encoder: var PackedEncoder; m: var PackedModule) =
case n.kind
of routineDefs:
toPackedProcDef(n, m.topLevel, encoder, m)
when false:
# we serialize n[namePos].sym instead
if n[namePos].kind == nkSym:
let s = n[namePos].sym
discard storeSym(s, encoder, m)
if s.flags * {sfExportc, sfCompilerProc, sfCompileTime} == {sfExportc}:
m.exportCProcs.add(s.itemId.item)
else:
toPackedNode(n, m.topLevel, encoder, m)
of nkStmtList, nkStmtListExpr:
for it in n:
toPackedNodeIgnoreProcDefs(it, encoder, m)
else:
toPackedNode(n, m.topLevel, encoder, m)
proc toPackedNodeTopLevel*(n: PNode, encoder: var PackedEncoder; m: var PackedModule) =
toPackedNodeIgnoreProcDefs(n, encoder, m)
flush encoder, m
proc toPackedGeneratedProcDef*(s: PSym, encoder: var PackedEncoder; m: var PackedModule) =
## Generic procs and generated `=hook`'s need explicit top-level entries so
## that the code generator can work without having to special case these. These
## entries will also be useful for other tools and are the cleanest design
## I can come up with.
assert s.kind in routineKinds
toPackedProcDef(s.ast, m.topLevel, encoder, m)
#flush encoder, m
proc storeInstantiation*(c: var PackedEncoder; m: var PackedModule; s: PSym; i: PInstantiation) =
var t = newSeq[PackedItemId](i.concreteTypes.len)
for j in 0..high(i.concreteTypes):
t[j] = storeTypeLater(i.concreteTypes[j], c, m)
m.procInstCache.add PackedInstantiation(key: storeSymLater(s, c, m),
sym: storeSymLater(i.sym, c, m),
concreteTypes: t)
toPackedGeneratedProcDef(i.sym, c, m)
proc loadError(err: RodFileError; filename: AbsoluteFile; config: ConfigRef;) =
case err
of cannotOpen:
rawMessage(config, warnCannotOpenFile, filename.string)
of includeFileChanged:
rawMessage(config, warnFileChanged, filename.string)
else:
echo "Error: ", $err, " loading file: ", filename.string
proc loadRodFile*(filename: AbsoluteFile; m: var PackedModule; config: ConfigRef;
ignoreConfig = false): RodFileError =
m.sh = Shared()
var f = rodfiles.open(filename.string)
f.loadHeader()
f.loadSection configSection
f.loadPrim m.definedSymbols
f.loadPrim m.cfg
if f.err == ok and not configIdentical(m, config) and not ignoreConfig:
f.err = configMismatch
template loadSeqSection(section, data) {.dirty.} =
f.loadSection section
f.loadSeq data
template loadTabSection(section, data) {.dirty.} =
f.loadSection section
f.load data
loadTabSection stringsSection, m.sh.strings
loadSeqSection checkSumsSection, m.includes
if not includesIdentical(m, config):
f.err = includeFileChanged
loadSeqSection depsSection, m.imports
loadTabSection integersSection, m.sh.integers
loadTabSection floatsSection, m.sh.floats
loadSeqSection exportsSection, m.exports
loadSeqSection reexportsSection, m.reexports
loadSeqSection compilerProcsSection, m.compilerProcs
loadSeqSection trmacrosSection, m.trmacros
loadSeqSection convertersSection, m.converters
loadSeqSection methodsSection, m.methods
loadSeqSection pureEnumsSection, m.pureEnums
loadSeqSection macroUsagesSection, m.macroUsages
loadSeqSection toReplaySection, m.toReplay.nodes
loadSeqSection topLevelSection, m.topLevel.nodes
loadSeqSection bodiesSection, m.bodies.nodes
loadSeqSection symsSection, m.sh.syms
loadSeqSection typesSection, m.sh.types
loadSeqSection typeInstCacheSection, m.typeInstCache
loadSeqSection procInstCacheSection, m.procInstCache
loadSeqSection attachedOpsSection, m.attachedOps
loadSeqSection methodsPerTypeSection, m.methodsPerType
loadSeqSection enumToStringProcsSection, m.enumToStringProcs
close(f)
result = f.err
# -------------------------------------------------------------------------
proc storeError(err: RodFileError; filename: AbsoluteFile) =
echo "Error: ", $err, "; couldn't write to ", filename.string
removeFile(filename.string)
proc saveRodFile*(filename: AbsoluteFile; encoder: var PackedEncoder; m: var PackedModule) =
flush encoder, m
#rememberConfig(encoder, encoder.config)
var f = rodfiles.create(filename.string)
f.storeHeader()
f.storeSection configSection
f.storePrim m.definedSymbols
f.storePrim m.cfg
template storeSeqSection(section, data) {.dirty.} =
f.storeSection section
f.storeSeq data
template storeTabSection(section, data) {.dirty.} =
f.storeSection section
f.store data
storeTabSection stringsSection, m.sh.strings
storeSeqSection checkSumsSection, m.includes
storeSeqSection depsSection, m.imports
storeTabSection integersSection, m.sh.integers
storeTabSection floatsSection, m.sh.floats
storeSeqSection exportsSection, m.exports
storeSeqSection reexportsSection, m.reexports
storeSeqSection compilerProcsSection, m.compilerProcs
storeSeqSection trmacrosSection, m.trmacros
storeSeqSection convertersSection, m.converters
storeSeqSection methodsSection, m.methods
storeSeqSection pureEnumsSection, m.pureEnums
storeSeqSection macroUsagesSection, m.macroUsages
storeSeqSection toReplaySection, m.toReplay.nodes
storeSeqSection topLevelSection, m.topLevel.nodes
storeSeqSection bodiesSection, m.bodies.nodes
storeSeqSection symsSection, m.sh.syms
storeSeqSection typesSection, m.sh.types
storeSeqSection typeInstCacheSection, m.typeInstCache
storeSeqSection procInstCacheSection, m.procInstCache
storeSeqSection attachedOpsSection, m.attachedOps
storeSeqSection methodsPerTypeSection, m.methodsPerType
storeSeqSection enumToStringProcsSection, m.enumToStringProcs
close(f)
encoder.disable()
if f.err != ok:
storeError(f.err, filename)
when false:
# basic loader testing:
var m2: PackedModule
discard loadRodFile(filename, m2, encoder.config)
echo "loaded ", filename.string
# ----------------------------------------------------------------------------
type
PackedDecoder* = object
lastModule: int
lastLit: LitId
lastFile: FileIndex # remember the last lookup entry.
config*: ConfigRef
cache*: IdentCache
type
ModuleStatus* = enum
undefined,
storing, # state is strictly for stress-testing purposes
loading,
loaded,
outdated
LoadedModule* = object
status*: ModuleStatus
symsInit, typesInit: bool
fromDisk*: PackedModule
syms: seq[PSym] # indexed by itemId
types: seq[PType]
module*: PSym # the one true module symbol.
iface: Table[PIdent, seq[PackedItemId]] # PackedItemId so that it works with reexported symbols too
PackedModuleGraph* = seq[LoadedModule] # indexed by FileIndex
proc loadType(c: var PackedDecoder; g: var PackedModuleGraph; thisModule: int; t: PackedItemId): PType
proc loadSym(c: var PackedDecoder; g: var PackedModuleGraph; thisModule: int; s: PackedItemId): PSym
proc toFileIndexCached*(c: var PackedDecoder; g: PackedModuleGraph; thisModule: int; f: LitId): FileIndex =
if c.lastLit == f and c.lastModule == thisModule:
result = c.lastFile
else:
result = toFileIndex(f, g[thisModule].fromDisk, c.config)
c.lastModule = thisModule
c.lastLit = f
c.lastFile = result
proc translateLineInfo(c: var PackedDecoder; g: var PackedModuleGraph; thisModule: int;
x: PackedLineInfo): TLineInfo =
assert g[thisModule].status in {loaded, storing}
result = TLineInfo(line: x.line, col: x.col,
fileIndex: toFileIndexCached(c, g, thisModule, x.file))
proc loadNodes*(c: var PackedDecoder; g: var PackedModuleGraph; thisModule: int;
tree: PackedTree; n: NodePos): PNode =
let k = n.kind
if k == nkNilRodNode:
return nil
when false:
echo "loading node ", c.config $ translateLineInfo(c, g, thisModule, n.info)
result = newNodeIT(k, translateLineInfo(c, g, thisModule, n.info),
loadType(c, g, thisModule, n.typ))
result.flags = n.flags
case k
of nkEmpty, nkNilLit, nkType:
discard
of nkIdent:
result.ident = getIdent(c.cache, g[thisModule].fromDisk.sh.strings[n.litId])
of nkSym:
result.sym = loadSym(c, g, thisModule, PackedItemId(module: LitId(0), item: tree.nodes[n.int].operand))
of directIntLit:
result.intVal = tree.nodes[n.int].operand
of externIntLit:
result.intVal = g[thisModule].fromDisk.sh.integers[n.litId]
of nkStrLit..nkTripleStrLit:
result.strVal = g[thisModule].fromDisk.sh.strings[n.litId]
of nkFloatLit..nkFloat128Lit:
result.floatVal = g[thisModule].fromDisk.sh.floats[n.litId]
of nkModuleRef:
let (n1, n2) = sons2(tree, n)
assert n1.kind == nkInt32Lit
assert n2.kind == nkInt32Lit
transitionNoneToSym(result)
result.sym = loadSym(c, g, thisModule, PackedItemId(module: n1.litId, item: tree.nodes[n2.int].operand))
else:
for n0 in sonsReadonly(tree, n):
result.addAllowNil loadNodes(c, g, thisModule, tree, n0)
proc initPackedDecoder*(config: ConfigRef; cache: IdentCache): PackedDecoder =
result = PackedDecoder(
lastModule: int32(-1),
lastLit: LitId(0),
lastFile: FileIndex(-1),
config: config,
cache: cache)
proc loadProcHeader(c: var PackedDecoder; g: var PackedModuleGraph; thisModule: int;
tree: PackedTree; n: NodePos): PNode =
# do not load the body of the proc. This will be done later in
# getProcBody, if required.
let k = n.kind
result = newNodeIT(k, translateLineInfo(c, g, thisModule, n.info),
loadType(c, g, thisModule, n.typ))
result.flags = n.flags
assert k in {nkProcDef, nkMethodDef, nkIteratorDef, nkFuncDef, nkConverterDef, nkLambda}
var i = 0
for n0 in sonsReadonly(tree, n):
if i != bodyPos:
result.add loadNodes(c, g, thisModule, tree, n0)
else:
result.addAllowNil nil
inc i
proc loadProcBody(c: var PackedDecoder; g: var PackedModuleGraph; thisModule: int;
tree: PackedTree; n: NodePos): PNode =
var i = 0
for n0 in sonsReadonly(tree, n):
if i == bodyPos:
result = loadNodes(c, g, thisModule, tree, n0)
inc i
proc moduleIndex*(c: var PackedDecoder; g: var PackedModuleGraph; thisModule: int;
s: PackedItemId): int32 {.inline.} =
result = if s.module == LitId(0): thisModule.int32
else: toFileIndexCached(c, g, thisModule, s.module).int32
proc symHeaderFromPacked(c: var PackedDecoder; g: var PackedModuleGraph;
s: PackedSym; si, item: int32): PSym =
result = PSym(itemId: ItemId(module: si, item: item),
kind: s.kind, magic: s.magic, flags: s.flags,
info: translateLineInfo(c, g, si, s.info),
options: s.options,
position: s.position,
name: getIdent(c.cache, g[si].fromDisk.sh.strings[s.name])
)
template loadAstBody(p, field) =
if p.field != emptyNodeId:
result.field = loadNodes(c, g, si, g[si].fromDisk.bodies, NodePos p.field)
template loadAstBodyLazy(p, field) =
if p.field != emptyNodeId:
result.field = loadProcHeader(c, g, si, g[si].fromDisk.bodies, NodePos p.field)
proc loadLib(c: var PackedDecoder; g: var PackedModuleGraph;
si, item: int32; l: PackedLib): PLib =
# XXX: hack; assume a zero LitId means the PackedLib is all zero (empty)
if l.name.int == 0:
result = nil
else:
result = PLib(generated: l.generated, isOverriden: l.isOverriden,
kind: l.kind, name: rope g[si].fromDisk.sh.strings[l.name])
loadAstBody(l, path)
proc symBodyFromPacked(c: var PackedDecoder; g: var PackedModuleGraph;
s: PackedSym; si, item: int32; result: PSym) =
result.typ = loadType(c, g, si, s.typ)
loadAstBody(s, constraint)
if result.kind in {skProc, skFunc, skIterator, skConverter, skMethod}:
loadAstBodyLazy(s, ast)
else:
loadAstBody(s, ast)
result.annex = loadLib(c, g, si, item, s.annex)
when hasFFI:
result.cname = g[si].fromDisk.sh.strings[s.cname]
if s.kind in {skLet, skVar, skField, skForVar}:
result.guard = loadSym(c, g, si, s.guard)
result.bitsize = s.bitsize
result.alignment = s.alignment
result.owner = loadSym(c, g, si, s.owner)
let externalName = g[si].fromDisk.sh.strings[s.externalName]
if externalName != "":
result.loc.r = rope externalName
result.loc.flags = s.locFlags
proc loadSym(c: var PackedDecoder; g: var PackedModuleGraph; thisModule: int; s: PackedItemId): PSym =
if s == nilItemId:
result = nil
else:
let si = moduleIndex(c, g, thisModule, s)
assert g[si].status in {loaded, storing}
if not g[si].symsInit:
g[si].symsInit = true
setLen g[si].syms, g[si].fromDisk.sh.syms.len
if g[si].syms[s.item] == nil:
if g[si].fromDisk.sh.syms[s.item].kind != skModule:
result = symHeaderFromPacked(c, g, g[si].fromDisk.sh.syms[s.item], si, s.item)
# store it here early on, so that recursions work properly:
g[si].syms[s.item] = result
symBodyFromPacked(c, g, g[si].fromDisk.sh.syms[s.item], si, s.item, result)
else:
result = g[si].module
assert result != nil
else:
result = g[si].syms[s.item]
proc typeHeaderFromPacked(c: var PackedDecoder; g: var PackedModuleGraph;
t: PackedType; si, item: int32): PType =
result = PType(itemId: ItemId(module: si, item: t.nonUniqueId), kind: t.kind,
flags: t.flags, size: t.size, align: t.align,
paddingAtEnd: t.paddingAtEnd, lockLevel: t.lockLevel,
uniqueId: ItemId(module: si, item: item),
callConv: t.callConv)
proc typeBodyFromPacked(c: var PackedDecoder; g: var PackedModuleGraph;
t: PackedType; si, item: int32; result: PType) =
result.sym = loadSym(c, g, si, t.sym)
result.owner = loadSym(c, g, si, t.owner)
when false:
for op, item in pairs t.attachedOps:
result.attachedOps[op] = loadSym(c, g, si, item)
result.typeInst = loadType(c, g, si, t.typeInst)
for son in items t.types:
result.sons.add loadType(c, g, si, son)
loadAstBody(t, n)
when false:
for gen, id in items t.methods:
result.methods.add((gen, loadSym(c, g, si, id)))
proc loadType(c: var PackedDecoder; g: var PackedModuleGraph; thisModule: int; t: PackedItemId): PType =
if t == nilItemId:
result = nil
else:
let si = moduleIndex(c, g, thisModule, t)
assert g[si].status in {loaded, storing}
assert t.item > 0
if not g[si].typesInit:
g[si].typesInit = true
setLen g[si].types, g[si].fromDisk.sh.types.len
if g[si].types[t.item] == nil:
result = typeHeaderFromPacked(c, g, g[si].fromDisk.sh.types[t.item], si, t.item)
# store it here early on, so that recursions work properly:
g[si].types[t.item] = result
typeBodyFromPacked(c, g, g[si].fromDisk.sh.types[t.item], si, t.item, result)
else:
result = g[si].types[t.item]
assert result.itemId.item > 0
proc newPackage(config: ConfigRef; cache: IdentCache; fileIdx: FileIndex): PSym =
let filename = AbsoluteFile toFullPath(config, fileIdx)
let name = getIdent(cache, splitFile(filename).name)
let info = newLineInfo(fileIdx, 1, 1)
let
pck = getPackageName(config, filename.string)
pck2 = if pck.len > 0: pck else: "unknown"
pack = getIdent(cache, pck2)
result = newSym(skPackage, getIdent(cache, pck2),
ItemId(module: PackageModuleId, item: int32(fileIdx)), nil, info)
proc setupLookupTables(g: var PackedModuleGraph; conf: ConfigRef; cache: IdentCache;
fileIdx: FileIndex; m: var LoadedModule) =
m.iface = initTable[PIdent, seq[PackedItemId]]()
for e in m.fromDisk.exports:
let nameLit = e[0]
m.iface.mgetOrPut(cache.getIdent(m.fromDisk.sh.strings[nameLit]), @[]).add(PackedItemId(module: LitId(0), item: e[1]))
for re in m.fromDisk.reexports:
let nameLit = re[0]
m.iface.mgetOrPut(cache.getIdent(m.fromDisk.sh.strings[nameLit]), @[]).add(re[1])
let filename = AbsoluteFile toFullPath(conf, fileIdx)
# We cannot call ``newSym`` here, because we have to circumvent the ID
# mechanism, which we do in order to assign each module a persistent ID.
m.module = PSym(kind: skModule, itemId: ItemId(module: int32(fileIdx), item: 0'i32),
name: getIdent(cache, splitFile(filename).name),
info: newLineInfo(fileIdx, 1, 1),
position: int(fileIdx))
m.module.owner = newPackage(conf, cache, fileIdx)
if fileIdx == conf.projectMainIdx2:
m.module.flags.incl sfMainModule
proc loadToReplayNodes(g: var PackedModuleGraph; conf: ConfigRef; cache: IdentCache;
fileIdx: FileIndex; m: var LoadedModule) =
m.module.ast = newNode(nkStmtList)
if m.fromDisk.toReplay.len > 0:
var decoder = PackedDecoder(
lastModule: int32(-1),
lastLit: LitId(0),
lastFile: FileIndex(-1),
config: conf,
cache: cache)
for p in allNodes(m.fromDisk.toReplay):
m.module.ast.add loadNodes(decoder, g, int(fileIdx), m.fromDisk.toReplay, p)
proc needsRecompile(g: var PackedModuleGraph; conf: ConfigRef; cache: IdentCache;
fileIdx: FileIndex; cachedModules: var seq[FileIndex]): bool =
# Does the file belong to the fileIdx need to be recompiled?
let m = int(fileIdx)
if m >= g.len:
g.setLen(m+1)
case g[m].status
of undefined:
g[m].status = loading
let fullpath = msgs.toFullPath(conf, fileIdx)
let rod = toRodFile(conf, AbsoluteFile fullpath)
let err = loadRodFile(rod, g[m].fromDisk, conf)
if err == ok:
result = optForceFullMake in conf.globalOptions
# check its dependencies:
for dep in g[m].fromDisk.imports:
let fid = toFileIndex(dep, g[m].fromDisk, conf)
# Warning: we need to traverse the full graph, so
# do **not use break here**!
if needsRecompile(g, conf, cache, fid, cachedModules):
result = true
if not result:
setupLookupTables(g, conf, cache, fileIdx, g[m])
cachedModules.add fileIdx
g[m].status = loaded
else:
g[m] = LoadedModule(status: outdated, module: g[m].module)
else:
loadError(err, rod, conf)
g[m].status = outdated
result = true
when false: loadError(err, rod, conf)
of loading, loaded:
# For loading: Assume no recompile is required.
result = false
of outdated, storing:
result = true
proc moduleFromRodFile*(g: var PackedModuleGraph; conf: ConfigRef; cache: IdentCache;
fileIdx: FileIndex; cachedModules: var seq[FileIndex]): PSym =
## Returns 'nil' if the module needs to be recompiled.
if needsRecompile(g, conf, cache, fileIdx, cachedModules):
result = nil
else:
result = g[int fileIdx].module
assert result != nil
assert result.position == int(fileIdx)
for m in cachedModules:
loadToReplayNodes(g, conf, cache, m, g[int m])
template setupDecoder() {.dirty.} =
var decoder = PackedDecoder(
lastModule: int32(-1),
lastLit: LitId(0),
lastFile: FileIndex(-1),
config: config,
cache: cache)
proc loadProcBody*(config: ConfigRef, cache: IdentCache;
g: var PackedModuleGraph; s: PSym): PNode =
let mId = s.itemId.module
var decoder = PackedDecoder(
lastModule: int32(-1),
lastLit: LitId(0),
lastFile: FileIndex(-1),
config: config,
cache: cache)
let pos = g[mId].fromDisk.sh.syms[s.itemId.item].ast
assert pos != emptyNodeId
result = loadProcBody(decoder, g, mId, g[mId].fromDisk.bodies, NodePos pos)
proc loadTypeFromId*(config: ConfigRef, cache: IdentCache;
g: var PackedModuleGraph; module: int; id: PackedItemId): PType =
if id.item < g[module].types.len:
result = g[module].types[id.item]
else:
result = nil
if result == nil:
var decoder = PackedDecoder(
lastModule: int32(-1),
lastLit: LitId(0),
lastFile: FileIndex(-1),
config: config,
cache: cache)
result = loadType(decoder, g, module, id)
proc loadSymFromId*(config: ConfigRef, cache: IdentCache;
g: var PackedModuleGraph; module: int; id: PackedItemId): PSym =
if id.item < g[module].syms.len:
result = g[module].syms[id.item]
else:
result = nil
if result == nil:
var decoder = PackedDecoder(
lastModule: int32(-1),
lastLit: LitId(0),
lastFile: FileIndex(-1),
config: config,
cache: cache)
result = loadSym(decoder, g, module, id)
proc translateId*(id: PackedItemId; g: PackedModuleGraph; thisModule: int; config: ConfigRef): ItemId =
if id.module == LitId(0):
ItemId(module: thisModule.int32, item: id.item)
else:
ItemId(module: toFileIndex(id.module, g[thisModule].fromDisk, config).int32, item: id.item)
proc checkForHoles(m: PackedModule; config: ConfigRef; moduleId: int) =
var bugs = 0
for i in 1 .. high(m.sh.syms):
if m.sh.syms[i].kind == skUnknown:
echo "EMPTY ID ", i, " module ", moduleId, " ", toFullPath(config, FileIndex(moduleId))
inc bugs
assert bugs == 0
when false:
var nones = 0
for i in 1 .. high(m.sh.types):
inc nones, m.sh.types[i].kind == tyNone
assert nones < 1
proc simulateLoadedModule*(g: var PackedModuleGraph; conf: ConfigRef; cache: IdentCache;
moduleSym: PSym; m: PackedModule) =
# For now only used for heavy debugging. In the future we could use this to reduce the
# compiler's memory consumption.
let idx = moduleSym.position
assert g[idx].status in {storing}
g[idx].status = loaded
assert g[idx].module == moduleSym
setupLookupTables(g, conf, cache, FileIndex(idx), g[idx])
loadToReplayNodes(g, conf, cache, FileIndex(idx), g[idx])
# ---------------- symbol table handling ----------------
type
RodIter* = object
decoder: PackedDecoder
values: seq[PackedItemId]
i, module: int
proc initRodIter*(it: var RodIter; config: ConfigRef, cache: IdentCache;
g: var PackedModuleGraph; module: FileIndex;
name: PIdent): PSym =
it.decoder = PackedDecoder(
lastModule: int32(-1),
lastLit: LitId(0),
lastFile: FileIndex(-1),
config: config,
cache: cache)
it.values = g[int module].iface.getOrDefault(name)
it.i = 0
it.module = int(module)
if it.i < it.values.len:
result = loadSym(it.decoder, g, int(module), it.values[it.i])
inc it.i
proc initRodIterAllSyms*(it: var RodIter; config: ConfigRef, cache: IdentCache;
g: var PackedModuleGraph; module: FileIndex): PSym =
it.decoder = PackedDecoder(
lastModule: int32(-1),
lastLit: LitId(0),
lastFile: FileIndex(-1),
config: config,
cache: cache)
it.values = @[]
it.module = int(module)
for v in g[int module].iface.values:
it.values.add v
it.i = 0
if it.i < it.values.len:
result = loadSym(it.decoder, g, int(module), it.values[it.i])
inc it.i
proc nextRodIter*(it: var RodIter; g: var PackedModuleGraph): PSym =
if it.i < it.values.len:
result = loadSym(it.decoder, g, it.module, it.values[it.i])
inc it.i
iterator interfaceSymbols*(config: ConfigRef, cache: IdentCache;
g: var PackedModuleGraph; module: FileIndex;
name: PIdent): PSym =
setupDecoder()
let values = g[int module].iface.getOrDefault(name)
for pid in values:
let s = loadSym(decoder, g, int(module), pid)
assert s != nil
yield s
proc interfaceSymbol*(config: ConfigRef, cache: IdentCache;
g: var PackedModuleGraph; module: FileIndex;
name: PIdent): PSym =
setupDecoder()
let values = g[int module].iface.getOrDefault(name)
result = loadSym(decoder, g, int(module), values[0])
proc idgenFromLoadedModule*(m: LoadedModule): IdGenerator =
IdGenerator(module: m.module.itemId.module, symId: int32 m.fromDisk.sh.syms.len,
typeId: int32 m.fromDisk.sh.types.len)
proc searchForCompilerproc*(m: LoadedModule; name: string): int32 =
# slow, linear search, but the results are cached:
for it in items(m.fromDisk.compilerProcs):
if m.fromDisk.sh.strings[it[0]] == name:
return it[1]
return -1
# ------------------------- .rod file viewer ---------------------------------
proc rodViewer*(rodfile: AbsoluteFile; config: ConfigRef, cache: IdentCache) =
var m: PackedModule
let err = loadRodFile(rodfile, m, config, ignoreConfig=true)
if err != ok:
echo "Error: could not load: ", rodfile.string, " reason: ", err
quit 1
when true:
echo "exports:"
for ex in m.exports:
echo " ", m.sh.strings[ex[0]], " local ID: ", ex[1]
assert ex[0] == m.sh.syms[ex[1]].name
# ex[1] int32
echo "reexports:"
for ex in m.reexports:
echo " ", m.sh.strings[ex[0]]
# reexports*: seq[(LitId, PackedItemId)]
echo "all symbols"
for i in 0..high(m.sh.syms):
echo " ", m.sh.strings[m.sh.syms[i].name], " local ID: ", i
echo "symbols: ", m.sh.syms.len, " types: ", m.sh.types.len,
" top level nodes: ", m.topLevel.nodes.len, " other nodes: ", m.bodies.nodes.len,
" strings: ", m.sh.strings.len, " integers: ", m.sh.integers.len,
" floats: ", m.sh.floats.len