# msgs

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# Imports

options, ropes, lineinfos, pathutils, strutils2

# Types

    InstantiationInfo = typeof(instantiationInfo())

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    FilenameOption = enum
      foAbs, foRelProject, foMagicSauce, foName, foStacktrace

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    MsgFlag = enum
      msgStdout,                ## force writing to stdout, even stderr is default
      msgSkipHook                ## skip message hook even if it is present

  flags altering msgWriteln behavior Source Edit

    MsgFlags = set[MsgFlag]

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    TErrorHandling = enum
      doNothing, doAbort, doRaise

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# Consts

    gCmdLineInfo = (line: 1'u, col: 1, fileIndex: -3)

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    ColOffset = 1

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    commandLineDesc = "command line"

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# Procs

    proc toCChar(c: char; result: var string) {...}{.raises: [], tags: [].}

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    proc makeCString(s: string): Rope {...}{.raises: [], tags: [].}

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    proc fileInfoKnown(conf: ConfigRef; filename: AbsoluteFile): bool {...}{.raises: [],
        tags: [ReadDirEffect].}

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    proc fileInfoIdx(conf: ConfigRef; filename: AbsoluteFile; isKnownFile: var bool): FileIndex {...}{.
        raises: [KeyError, Exception], tags: [ReadDirEffect, RootEffect].}

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    proc fileInfoIdx(conf: ConfigRef; filename: AbsoluteFile): FileIndex {...}{.
        raises: [KeyError, Exception], tags: [ReadDirEffect, RootEffect].}

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    proc newLineInfo(fileInfoIdx: FileIndex; line, col: int): TLineInfo {...}{.
        raises: [], tags: [].}

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    proc newLineInfo(conf: ConfigRef; filename: AbsoluteFile; line, col: int): TLineInfo {...}{.
        inline, raises: [KeyError, Exception], tags: [ReadDirEffect, RootEffect].}

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    proc suggestWriteln(conf: ConfigRef; s: string) {...}{.raises: [IOError, Exception],
        tags: [WriteIOEffect, RootEffect].}

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    proc msgQuit(x: int8) {...}{.raises: [], tags: [].}

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    proc msgQuit(x: string) {...}{.raises: [], tags: [].}

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    proc suggestQuit() {...}{.raises: [ESuggestDone], tags: [].}

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    proc getInfoContextLen(conf: ConfigRef): int {...}{.raises: [], tags: [].}

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    proc setInfoContextLen(conf: ConfigRef; L: int) {...}{.raises: [], tags: [].}

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    proc pushInfoContext(conf: ConfigRef; info: TLineInfo; detail: string = "") {...}{.
        raises: [], tags: [].}

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    proc popInfoContext(conf: ConfigRef) {...}{.raises: [], tags: [].}

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    proc getInfoContext(conf: ConfigRef; index: int): TLineInfo {...}{.raises: [],
        tags: [].}

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    proc toProjPath(conf: ConfigRef; fileIdx: FileIndex): string {...}{.raises: [],
        tags: [].}

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    proc toFullPath(conf: ConfigRef; fileIdx: FileIndex): string {...}{.raises: [],
        tags: [].}

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    proc setDirtyFile(conf: ConfigRef; fileIdx: FileIndex; filename: AbsoluteFile) {...}{.
        raises: [], tags: [].}

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    proc setHash(conf: ConfigRef; fileIdx: FileIndex; hash: string) {...}{.raises: [],
        tags: [].}

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    proc getHash(conf: ConfigRef; fileIdx: FileIndex): string {...}{.raises: [], tags: [].}

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    proc toFullPathConsiderDirty(conf: ConfigRef; fileIdx: FileIndex): AbsoluteFile {...}{.
        raises: [], tags: [].}

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    proc toFilenameOption(conf: ConfigRef; fileIdx: FileIndex; opt: FilenameOption): string {...}{.
        raises: [], tags: [].}

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    proc toMsgFilename(conf: ConfigRef; info: FileIndex): string {...}{.raises: [],
        tags: [].}

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    proc toLinenumber(info: TLineInfo): int {...}{.inline, raises: [], tags: [].}

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    proc toColumn(info: TLineInfo): int {...}{.inline, raises: [], tags: [].}

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    proc toFileLineCol(conf: ConfigRef; info: TLineInfo): string {...}{.inline,
        raises: [], tags: [].}

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    proc `$`(conf: ConfigRef; info: TLineInfo): string {...}{.raises: [], tags: [].}

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    proc `$`(info: TLineInfo): string {...}{.error.}

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    proc `??`(conf: ConfigRef; info: TLineInfo; filename: string): bool {...}{.
        raises: [], tags: [].}

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    proc msgWriteln(conf: ConfigRef; s: string; flags: MsgFlags = {}) {...}{.
        raises: [Exception, IOError], tags: [RootEffect, WriteIOEffect].}

  Writes given message string to stderr by default. If `--stdout` option is given, writes to stdout instead. If message hook is present, then it is used to output message rather than stderr/stdout. This behavior can be altered by given optional flags. Source Edit

    proc msgKindToString(kind: TMsgKind): string {...}{.raises: [], tags: [].}

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    proc log(s: string) {...}{.raises: [IOError],
                          tags: [ReadEnvEffect, ReadIOEffect, WriteIOEffect].}

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    proc `==`(a, b: TLineInfo): bool {...}{.raises: [], tags: [].}

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    proc exactEquals(a, b: TLineInfo): bool {...}{.raises: [], tags: [].}

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    proc numLines(conf: ConfigRef; fileIdx: FileIndex): int {...}{.raises: [],
        tags: [ReadIOEffect].}

  xxx there's an off by 1 error that should be fixed; if a file ends with "foo" or "foon" it will return same number of lines (ie, a trailing empty line is discounted) Source Edit

    proc sourceLine(conf: ConfigRef; i: TLineInfo): string {...}{.raises: [],
        tags: [ReadIOEffect].}

  1-based index (matches editor line numbers); 1st line is for i.line = 1 last valid line is `numLines` inclusive Source Edit

    proc formatMsg(conf: ConfigRef; info: TLineInfo; msg: TMsgKind; arg: string): string {...}{.
        raises: [ValueError], tags: [].}

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    proc liMessage(conf: ConfigRef; info: TLineInfo; msg: TMsgKind; arg: string;
                   eh: TErrorHandling; info2: InstantiationInfo; isRaw = false) {...}{.
        noinline, raises: [Exception, ValueError, IOError, ERecoverableError],
        tags: [RootEffect, WriteIOEffect, ReadIOEffect, ReadEnvEffect].}

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    proc quotedFilename(conf: ConfigRef; i: TLineInfo): Rope {...}{.raises: [], tags: [].}

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    proc listWarnings(conf: ConfigRef) {...}{.raises: [Exception, IOError, ValueError],
                                         tags: [RootEffect, WriteIOEffect].}

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    proc listHints(conf: ConfigRef) {...}{.raises: [Exception, IOError, ValueError],
                                      tags: [RootEffect, WriteIOEffect].}

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# Templates

    template toFilename(conf: ConfigRef; fileIdx: FileIndex): string

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    template toFilename(conf: ConfigRef; info: TLineInfo): string

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    template toProjPath(conf: ConfigRef; info: TLineInfo): string

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    template toFullPath(conf: ConfigRef; info: TLineInfo): string

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    template toFullPathConsiderDirty(conf: ConfigRef; info: TLineInfo): string

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    template toMsgFilename(conf: ConfigRef; info: TLineInfo): string

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    template styledMsgWriteln(args: varargs[typed])

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    template rawMessage(conf: ConfigRef; msg: TMsgKind; args: openArray[string])

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    template rawMessage(conf: ConfigRef; msg: TMsgKind; arg: string)

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    template fatal(conf: ConfigRef; info: TLineInfo; msg: TMsgKind; arg = "")

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    template globalAssert(conf: ConfigRef; cond: untyped;
                          info: TLineInfo = unknownLineInfo; arg = "")

  avoids boilerplate Source Edit

    template globalError(conf: ConfigRef; info: TLineInfo; msg: TMsgKind; arg = "")

  `local` means compilation keeps going until errorMax is reached (via `doNothing`), `global` means it stops. Source Edit

    template globalError(conf: ConfigRef; info: TLineInfo; arg: string)

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    template localError(conf: ConfigRef; info: TLineInfo; msg: TMsgKind; arg = "")

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    template localError(conf: ConfigRef; info: TLineInfo; arg: string)

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    template localError(conf: ConfigRef; info: TLineInfo; format: string;
                        params: openArray[string])

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    template message(conf: ConfigRef; info: TLineInfo; msg: TMsgKind; arg = "")

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    template internalError(conf: ConfigRef; info: TLineInfo; errMsg: string)

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    template internalError(conf: ConfigRef; errMsg: string)

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    template internalAssert(conf: ConfigRef; e: bool)

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    template lintReport(conf: ConfigRef; info: TLineInfo; beau, got: string)

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