Mojo: add support for {double,float}.{INFINITY,NEGATIVE_INFINITY,NAN}

mojo/public/tools/bindings/generators/mojom_java_generator.py

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """Generates java source files from a mojom.Module."""
 
 import argparse
 import ast
 import os
 import re
@@ skipping 242 matching lines @@
     # Add Long suffix to all integer literals.
     number = ast.literal_eval(token.lstrip('+ '))
     if not isinstance(number, (int, long)):
       raise ValueError('got unexpected type %r for int literal %r' % (
           type(number), token))
     # If the literal is too large to fit a signed long, convert it to the
     # equivalent signed long.
     if number >= 2 ** 63:
       number -= 2 ** 64
     return '%dL' % number
+  if kind_spec == 'd':
+    # Translate Inf and NaN:
+    if token == "Inf" or token == "+Inf":
+      return "java.lang.Double.POSITIVE_INFINITY"
+    if token == "-Inf":
+      return "java.lang.Double.NEGATIVE_INFINITY"
+    if token == "NaN":
+      return "java.lang.Double.NaN"
+  if kind_spec == 'f':
+    # Translate Inf and NaN:
+    if token == "Inf" or token == "+Inf":
+      return "java.lang.Float.POSITIVE_INFINITY"
+    if token == "-Inf":
+      return "java.lang.Float.NEGATIVE_INFINITY"
+    if token == "NaN":
+      return "java.lang.Float.NaN"
   return token
 
 def IsPointerArrayKind(kind):
   if not mojom.IsAnyArrayKind(kind):
     return False
   sub_kind = kind.kind
   return mojom.IsObjectKind(sub_kind)
 
 def GetConstantsMainEntityName(module):
   if 'JavaConstantsClassName' in module.attributes:
@@ skipping 89 matching lines @@
   def GetJinjaParameters(self):
     return {
       'lstrip_blocks': True,
       'trim_blocks': True,
     }
 
   def GetGlobals(self):
     return {
       'module': self.module,
     }