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#
#
# The Nim Compiler
# (c) Copyright 2015 Andreas Rumpf
#
# See the file "copying.txt", included in this
# distribution, for details about the copyright.
#
## Implements the module handling, including the caching of modules.
import
ast, astalgo, magicsys, std / sha1, rodread, msgs, cgendata, sigmatch, options,
idents, os, lexer, idgen, passes, syntaxes, llstream, modulegraphs, rod,
configuration
proc resetSystemArtifacts*(g: ModuleGraph) =
magicsys.resetSysTypes(g)
proc newModule(graph: ModuleGraph; fileIdx: FileIndex): PSym =
# 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.
new(result)
result.id = -1 # for better error checking
result.kind = skModule
let filename = fileIdx.toFullPath
result.name = getIdent(splitFile(filename).name)
if not isNimIdentifier(result.name.s):
rawMessage(graph.config, errGenerated, "invalid module name: " & result.name.s)
result.info = newLineInfo(fileIdx, 1, 1)
let
pck = getPackageName(graph.config, filename)
pck2 = if pck.len > 0: pck else: "unknown"
pack = getIdent(pck2)
var packSym = graph.packageSyms.strTableGet(pack)
if packSym == nil:
packSym = newSym(skPackage, getIdent(pck2), nil, result.info)
initStrTable(packSym.tab)
graph.packageSyms.strTableAdd(packSym)
result.owner = packSym
result.position = int fileIdx
growCache graph.modules, int fileIdx
graph.modules[result.position] = result
incl(result.flags, sfUsed)
initStrTable(result.tab)
strTableAdd(result.tab, result) # a module knows itself
let existing = strTableGet(packSym.tab, result.name)
if existing != nil and existing.info.fileIndex != result.info.fileIndex:
localError(graph.config, result.info, "module names need to be unique per Nimble package; module clashes with " & existing.info.fileIndex.toFullPath)
# strTableIncl() for error corrections:
discard strTableIncl(packSym.tab, result)
proc compileModule*(graph: ModuleGraph; fileIdx: FileIndex; cache: IdentCache, flags: TSymFlags): PSym =
result = graph.getModule(fileIdx)
if result == nil:
#growCache gMemCacheData, fileIdx
#gMemCacheData[fileIdx].needsRecompile = Probing
result = newModule(graph, fileIdx)
var rd: PRodReader
result.flags = result.flags + flags
if sfMainModule in result.flags:
gMainPackageId = result.owner.id
when false:
if conf.cmd in {cmdCompileToC, cmdCompileToCpp, cmdCheck, cmdIdeTools}:
rd = handleSymbolFile(result, cache)
if result.id < 0:
internalError("handleSymbolFile should have set the module's ID")
return
else:
discard
result.id = getModuleId(fileIdx, toFullPath(fileIdx))
discard processModule(graph, result,
if sfMainModule in flags and graph.config.projectIsStdin: stdin.llStreamOpen else: nil,
rd, cache)
#if optCaasEnabled in gGlobalOptions:
# gMemCacheData[fileIdx].needsRecompile = Recompiled
# if validFile: doHash fileIdx
elif graph.isDirty(result):
result.flags.excl sfDirty
# reset module fields:
initStrTable(result.tab)
result.ast = nil
discard processModule(graph, result,
if sfMainModule in flags and graph.config.projectIsStdin: stdin.llStreamOpen else: nil,
nil, cache)
graph.markClientsDirty(fileIdx)
when false:
if checkDepMem(fileIdx) == Yes:
result = compileModule(fileIdx, cache, flags)
else:
result = gCompiledModules[fileIdx]
proc importModule*(graph: ModuleGraph; s: PSym, fileIdx: FileIndex;
cache: IdentCache): PSym {.procvar.} =
# this is called by the semantic checking phase
assert graph.config != nil
result = compileModule(graph, fileIdx, cache, {})
graph.addDep(s, fileIdx)
#if sfSystemModule in result.flags:
# localError(result.info, errAttemptToRedefine, result.name.s)
# restore the notes for outer module:
graph.config.notes =
if s.owner.id == gMainPackageId: graph.config.mainPackageNotes
else: graph.config.foreignPackageNotes
proc includeModule*(graph: ModuleGraph; s: PSym, fileIdx: FileIndex;
cache: IdentCache): PNode {.procvar.} =
result = syntaxes.parseFile(fileIdx, cache, graph.config)
graph.addDep(s, fileIdx)
graph.addIncludeDep(s.position.FileIndex, fileIdx)
proc compileSystemModule*(graph: ModuleGraph; cache: IdentCache) =
if graph.systemModule == nil:
systemFileIdx = fileInfoIdx(graph.config, graph.config.libpath / "system.nim")
discard graph.compileModule(systemFileIdx, cache, {sfSystemModule})
proc wantMainModule*(conf: ConfigRef) =
if conf.projectFull.len == 0:
fatal(conf, newLineInfo(conf, "command line", 1, 1), errGenerated, "command expects a filename")
conf.projectMainIdx = int32 fileInfoIdx(conf, addFileExt(conf.projectFull, NimExt))
passes.gIncludeFile = includeModule
passes.gImportModule = importModule
proc compileProject*(graph: ModuleGraph; cache: IdentCache;
projectFileIdx = InvalidFileIDX) =
let conf = graph.config
wantMainModule(conf)
let systemFileIdx = fileInfoIdx(conf, conf.libpath / "system.nim")
let projectFile = if projectFileIdx == InvalidFileIDX: FileIndex(conf.projectMainIdx) else: projectFileIdx
graph.importStack.add projectFile
if projectFile == systemFileIdx:
discard graph.compileModule(projectFile, cache, {sfMainModule, sfSystemModule})
else:
graph.compileSystemModule(cache)
discard graph.compileModule(projectFile, cache, {sfMainModule})
proc makeModule*(graph: ModuleGraph; filename: string): PSym =
result = graph.newModule(fileInfoIdx(graph.config, filename))
result.id = getID()
proc makeStdinModule*(graph: ModuleGraph): PSym = graph.makeModule"stdin"
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