Nim - This repository contains the Nim compiler, Nim's stdlib, tools, and documentation. (mirror)

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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, magicsys, msgs, options, idents, lexer, passes, syntaxes, llstream, modulegraphs, lineinfos, pathutils, tables, packages when defined(nimPreviewSlimSystem): import std/[syncio, assertions] import ic / replayer proc resetSystemArtifacts*(g: ModuleGraph) = magicsys.resetSysTypes(g) template getModuleIdent(graph: ModuleGraph, filename: AbsoluteFile): PIdent = getIdent(graph.cache, splitFile(filename).name) proc partialInitModule(result: PSym; graph: ModuleGraph; fileIdx: FileIndex; filename: AbsoluteFile) = let packSym = getPackage(graph, fileIdx) result.owner = packSym result.position = int fileIdx proc newModule(graph: ModuleGraph; fileIdx: FileIndex): PSym = let filename = AbsoluteFile toFullPath(graph.config, 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. result = PSym(kind: skModule, itemId: ItemId(module: int32(fileIdx), item: 0'i32), name: getModuleIdent(graph, filename), info: newLineInfo(fileIdx, 1, 1)) if not isNimIdentifier(result.name.s): rawMessage(graph.config, errGenerated, "invalid module name: " & result.name.s) partialInitModule(result, graph, fileIdx, filename) graph.registerModule(result) proc compileModule*(graph: ModuleGraph; fileIdx: FileIndex; flags: TSymFlags, fromModule: PSym = nil): PSym = var flags = flags if fileIdx == graph.config.projectMainIdx2: flags.incl sfMainModule result = graph.getModule(fileIdx) template processModuleAux(moduleStatus) = onProcessing(graph, fileIdx, moduleStatus, fromModule = fromModule) var s: PLLStream if sfMainModule in flags: if graph.config.projectIsStdin: s = stdin.llStreamOpen elif graph.config.projectIsCmd: s = llStreamOpen(graph.config.cmdInput) discard processModule(graph, result, idGeneratorFromModule(result), s) if result == nil: var cachedModules: seq[FileIndex] result = moduleFromRodFile(graph, fileIdx, cachedModules) let filename = AbsoluteFile toFullPath(graph.config, fileIdx) if result == nil: result = newModule(graph, fileIdx) result.flags.incl flags registerModule(graph, result) processModuleAux("import") else: if sfSystemModule in flags: graph.systemModule = result partialInitModule(result, graph, fileIdx, filename) for m in cachedModules: registerModuleById(graph, m) replayStateChanges(graph.packed[m.int].module, graph) replayGenericCacheInformation(graph, m.int) elif graph.isDirty(result): result.flags.excl sfDirty # reset module fields: initStrTables(graph, result) result.ast = nil processModuleAux("import(dirty)") graph.markClientsDirty(fileIdx) proc importModule*(graph: ModuleGraph; s: PSym, fileIdx: FileIndex): PSym = # this is called by the semantic checking phase assert graph.config != nil result = compileModule(graph, fileIdx, {}, s) graph.addDep(s, fileIdx) # keep track of import relationships if graph.config.hcrOn: graph.importDeps.mgetOrPut(FileIndex(s.position), @[]).add(fileIdx) #if sfSystemModule in result.flags: # localError(result.info, errAttemptToRedefine, result.name.s) # restore the notes for outer module: graph.config.notes = if graph.config.belongsToProjectPackage(s) or isDefined(graph.config, "booting"): graph.config.mainPackageNotes else: graph.config.foreignPackageNotes proc includeModule*(graph: ModuleGraph; s: PSym, fileIdx: FileIndex): PNode = result = syntaxes.parseFile(fileIdx, graph.cache, graph.config) graph.addDep(s, fileIdx) graph.addIncludeDep(s.position.FileIndex, fileIdx) proc connectCallbacks*(graph: ModuleGraph) = graph.includeFileCallback = includeModule graph.importModuleCallback = importModule proc compileSystemModule*(graph: ModuleGraph) = if graph.systemModule == nil: connectCallbacks(graph) graph.config.m.systemFileIdx = fileInfoIdx(graph.config, graph.config.libpath / RelativeFile"system.nim") discard graph.compileModule(graph.config.m.systemFileIdx, {sfSystemModule}) proc wantMainModule*(conf: ConfigRef) = if conf.projectFull.isEmpty: fatal(conf, gCmdLineInfo, "command expects a filename") conf.projectMainIdx = fileInfoIdx(conf, addFileExt(conf.projectFull, NimExt)) proc compileProject*(graph: ModuleGraph; projectFileIdx = InvalidFileIdx) = connectCallbacks(graph) let conf = graph.config wantMainModule(conf) configComplete(graph) let systemFileIdx = fileInfoIdx(conf, conf.libpath / RelativeFile"system.nim") let projectFile = if projectFileIdx == InvalidFileIdx: conf.projectMainIdx else: projectFileIdx conf.projectMainIdx2 = projectFile let packSym = getPackage(graph, projectFile) graph.config.mainPackageId = packSym.getPackageId graph.importStack.add projectFile if projectFile == systemFileIdx: discard graph.compileModule(projectFile, {sfMainModule, sfSystemModule}) else: graph.compileSystemModule() discard graph.compileModule(projectFile, {sfMainModule}) proc makeModule*(graph: ModuleGraph; filename: AbsoluteFile): PSym = result = graph.newModule(fileInfoIdx(graph.config, filename)) registerModule(graph, result) proc makeModule*(graph: ModuleGraph; filename: string): PSym = result = makeModule(graph, AbsoluteFile filename) proc makeStdinModule*(graph: ModuleGraph): PSym = graph.makeModule(AbsoluteFile"stdin")


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