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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, syntaxes, modulegraphs,
lineinfos, pathutils
import ../dist/checksums/src/checksums/sha1
import std/strtabs
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 &
"'; a module name must be a valid Nim identifier.")
partialInitModule(result, graph, fileIdx, filename)
graph.registerModule(result)
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)
let path = toFullPath(graph.config, fileIdx)
graph.cachedFiles[path] = $secureHashFile(path)
proc wantMainModule*(conf: ConfigRef) =
if conf.projectFull.isEmpty:
fatal(conf, gCmdLineInfo, "command expects a filename")
conf.projectMainIdx = fileInfoIdx(conf, addFileExt(conf.projectFull, NimExt))
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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