From 2f95e4d829ed1452f160fa94a9126c71fde2140f Mon Sep 17 00:00:00 2001
From: Zahary Karadjov <zahary@gmail.com>
Date: Wed, 7 Dec 2011 00:45:52 +0200
Subject: [PATCH] Speed-up symbolFiles:on operations on windows

---
 compiler/main.nim    | 22 ++++++++++------------
 compiler/rodread.nim |  4 ++--
 2 files changed, 12 insertions(+), 14 deletions(-)

diff --git a/compiler/main.nim b/compiler/main.nim
index 944852bb68..fd29085168 100755
--- a/compiler/main.nim
+++ b/compiler/main.nim
@@ -15,7 +15,8 @@ import
   os, lists, condsyms, rodread, rodwrite, ropes, trees, 
   wordrecg, sem, semdata, idents, passes, docgen, extccomp,
   cgen, ecmasgen,
-  platform, nimconf, importer, passaux, depends, transf, evals, types, idgen
+  platform, nimconf, importer, passaux, depends, transf, evals, types, idgen,
+  tables
 
 const
   has_LLVM_Backend = false
@@ -27,19 +28,16 @@ proc MainCommand*()
 
 # ------------------ module handling -----------------------------------------
 
-type 
-  TFileModuleRec = tuple[filename: string, module: PSym]
-  TFileModuleMap = seq[TFileModuleRec]
+var
+  compMods = initTable[string, PSym]() # all compiled modules
 
-var compMods: TFileModuleMap = @[] # all compiled modules
+# This expects a normalized module path
+proc registerModule(filename: string, module: PSym) =
+  compMods[filename] = module
 
-proc registerModule(filename: string, module: PSym) = 
-  compMods.add((filename, module))
-
-proc getModule(filename: string): PSym = 
-  for i in countup(0, high(compMods)): 
-    if sameFile(compMods[i].filename, filename): 
-      return compMods[i].module
+# This expects a normalized module path
+proc getModule(filename: string): PSym =
+  result = compMods[filename]
 
 proc newModule(filename: string): PSym = 
   # We cannot call ``newSym`` here, because we have to circumvent the ID
diff --git a/compiler/rodread.nim b/compiler/rodread.nim
index 2ab019c82b..9db083181f 100755
--- a/compiler/rodread.nim
+++ b/compiler/rodread.nim
@@ -788,7 +788,7 @@ proc loadMethods(r: PRodReader) =
   
 proc getModuleIdx(filename: string): int = 
   for i in countup(0, high(gMods)): 
-    if sameFile(gMods[i].filename, filename): return i
+    if gMods[i].filename == filename: return i
   result = len(gMods)
   setlen(gMods, result + 1)
 
@@ -853,7 +853,7 @@ proc handleSymbolFile(module: PSym, filename: string): PRodReader =
   
 proc GetCRC*(filename: string): TCrc32 = 
   for i in countup(0, high(gMods)): 
-    if sameFile(gMods[i].filename, filename): return gMods[i].crc
+    if gMods[i].filename == filename: return gMods[i].crc
   
   result = crcFromFile(filename)
   #var idx = getModuleIdx(filename)