# this module avoids ast depending on msgs or vice versa
import std/strutils
import options, ast, msgs
proc typSym*(t: PType): PSym =
result = t.sym
if result == nil and t.kind == tyGenericInst: # this might need to be refined
result = t[0].sym
proc addDeclaredLoc*(result: var string, conf: ConfigRef; sym: PSym) =
result.add " [$1 declared in $2]" % [sym.kind.toHumanStr, toFileLineCol(conf, sym.info)]
proc addDeclaredLocMaybe*(result: var string, conf: ConfigRef; sym: PSym) =
if optDeclaredLocs in conf.globalOptions and sym != nil:
addDeclaredLoc(result, conf, sym)
proc addDeclaredLoc*(result: var string, conf: ConfigRef; typ: PType) =
# xxx figure out how to resolve `tyGenericParam`, e.g. for
# proc fn[T](a: T, b: T) = discard
# fn(1.1, "a")
let typ = typ.skipTypes(abstractInst + {tyStatic, tySequence, tyArray, tySet, tyUserTypeClassInst, tyVar, tyRef, tyPtr} - {tyRange})
result.add " [$1" % typ.kind.toHumanStr
if typ.sym != nil:
result.add " declared in " & toFileLineCol(conf, typ.sym.info)
result.add "]"
proc addDeclaredLocMaybe*(result: var string, conf: ConfigRef; typ: PType) =
if optDeclaredLocs in conf.globalOptions: addDeclaredLoc(result, conf, typ)
template quoteExpr*(a: string): untyped =
## can be used for quoting expressions in error msgs.
"'" & a & "'"
proc genFieldDefect*(conf: ConfigRef, field: string, disc: PSym): string =
let obj = disc.owner.name.s # `types.typeToString` might be better, eg for generics
result = "field '$#' is not accessible for type '$#'" % [field, obj]
if optDeclaredLocs in conf.globalOptions:
result.add " [discriminant declared in $#]" % toFileLineCol(conf, disc.info)
result.add " using '$# = " % disc.name.s