From 4137a4dbf386f19b0ce4f5de5b0a8ab05a3b2b8b Mon Sep 17 00:00:00 2001
From: Araq <rumpf_a@web.de>
Date: Wed, 17 Jul 2019 22:36:23 +0200
Subject: [feature] detect unused imports
---
compiler/suggest.nim | 17 ++++++++++++++++-
1 file changed, 16 insertions(+), 1 deletion(-)
(limited to 'compiler/suggest.nim')
diff --git a/compiler/suggest.nim b/compiler/suggest.nim
index 9e738e8a6..1fd12d750 100644
--- a/compiler/suggest.nim
+++ b/compiler/suggest.nim
@@ -528,7 +528,21 @@ proc userError(conf: ConfigRef; info: TLineInfo; s: PSym) =
return
localError(conf, info, "usage of '$1' is a user-defined error" % s.name.s)
-proc markUsed(conf: ConfigRef; info: TLineInfo; s: PSym; usageSym: var PSym) =
+proc markOwnerModuleAsUsed(c: PContext; s: PSym) =
+ var module = s
+ while module != nil and module.kind != skModule:
+ module = module.owner
+ if module != nil and module != c.module:
+ var i = 0
+ while i <= high(c.unusedImports):
+ if c.unusedImports[i][0] == module:
+ # mark it as used:
+ c.unusedImports.del(i)
+ else:
+ inc i
+
+proc markUsed(c: PContext; info: TLineInfo; s: PSym; usageSym: var PSym) =
+ let conf = c.config
incl(s.flags, sfUsed)
if s.kind == skEnumField and s.owner != nil:
incl(s.owner.flags, sfUsed)
@@ -541,6 +555,7 @@ proc markUsed(conf: ConfigRef; info: TLineInfo; s: PSym; usageSym: var PSym) =
suggestSym(conf, info, s, usageSym, false)
if {optStyleHint, optStyleError} * conf.globalOptions != {}:
styleCheckUse(conf, info, s)
+ markOwnerModuleAsUsed(c, s)
proc safeSemExpr*(c: PContext, n: PNode): PNode =
# use only for idetools support!
--
cgit 1.4.1-2-gfad0