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authorSimon Krauter <krauter.simon@arcor.de>2014-10-14 23:38:50 +0200
committerSimon Krauter <krauter.simon@arcor.de>2014-10-14 23:38:50 +0200
commit849484f9202c66567a8e6937198498ef8a75f558 (patch)
tree6d29937a49ee29abdc0794a9873e19e1e0cf5a09 /compiler
parentb7befd69ba0051c1db44a37c8c3e06c48990a9b1 (diff)
downloadNim-849484f9202c66567a8e6937198498ef8a75f558.tar.gz
Do not allow self import
Diffstat (limited to 'compiler')
-rw-r--r--compiler/importer.nim6
1 files changed, 4 insertions, 2 deletions
diff --git a/compiler/importer.nim b/compiler/importer.nim
index b4cae017e..4a0d83c66 100644
--- a/compiler/importer.nim
+++ b/compiler/importer.nim
@@ -92,7 +92,7 @@ proc rawImportSymbol(c: PContext, s: PSym) =
     if s.kind == skConverter: addConverter(c, s)
     if hasPattern(s): addPattern(c, s)
 
-proc importSymbol(c: PContext, n: PNode, fromMod: PSym) = 
+proc importSymbol(c: PContext, n: PNode, fromMod: PSym) =        
   let ident = lookups.considerQuotedIdent(n)
   let s = strTableGet(fromMod.tab, ident)
   if s == nil:
@@ -155,10 +155,12 @@ proc importModuleAs(n: PNode, realModule: PSym): PSym =
     # some misguided guy will write 'import abc.foo as foo' ...
     result = createModuleAlias(realModule, n.sons[1].ident, n.sons[1].info)
 
-proc myImportModule(c: PContext, n: PNode): PSym =
+proc myImportModule(c: PContext, n: PNode): PSym = 
   var f = checkModuleName(n)
   if f != InvalidFileIDX:
     result = importModuleAs(n, gImportModule(c.module, f))
+    if result.name.s == fileInfos[n.info.fileIndex].shortName:
+      localError(n.info, errGenerated, "A module cannot import itself")
     if sfDeprecated in result.flags:
       message(n.info, warnDeprecated, result.name.s)