read stdin differently in windows in eliminator

1 files changed, 9 insertions, 6 deletions

diff --git a/tools/eliminator/eliminator.coffee b/tools/eliminator/eliminator.coffee
index b941ccc0..08407cd2 100644
--- a/tools/eliminator/eliminator.coffee
+++ b/tools/eliminator/eliminator.coffee
@@ -19,6 +19,7 @@
 # Imports.
 uglify = require 'uglify-js'
 fs = require 'fs'
+os = require 'os'
 
 # Functions which have been generated by Emscripten. We optimize only those.
 generatedFunctions = []
@@ -369,12 +370,14 @@ class ExpressionOptimizer
 # function, then writes the optimized result to stdout.
 main = ->
   # Get the parse tree.
-  src = fs.readFileSync('/dev/stdin').toString()
-  # The following seems to work on windows, but fails on linux..
-  #src = ''
-  #size = fs.fstatSync(process.stdin.fd).size
-  #if size > 0
-  #  src = fs.readSync(process.stdin.fd, size)[0]
+  if os.platform() != 'windows'
+    src = fs.readFileSync('/dev/stdin').toString()
+  else
+    # The following seems to work on windows, but fails on linux..
+    src = ''
+    size = fs.fstatSync(process.stdin.fd).size
+    if size > 0
+      src = fs.readSync(process.stdin.fd, size)[0]
 
   throw 'Cannot identify generated functions' if GENERATED_FUNCTIONS_MARKER in src
   generatedFunctionsLine = src.split('\n').filter (line) ->