Use runtime.h to look for runtime function names.

tools/check-name-clashes.py

 #!/usr/bin/env python
 # Copyright 2014 the V8 project authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import js2c
 import os
 import re
 import sys
 
-FILENAME = "src/runtime.cc"
-FUNCTION = re.compile("^RUNTIME_FUNCTION\(Runtime_(\w+)")
-FUNCTIONEND = "}\n"
-MACRO = re.compile(r"^#define ([^ ]+)\(([^)]*)\) *([^\\]*)\\?\n$")
-FIRST_WORD = re.compile("^\s*(.*?)[\s({\[]")
-
-# Expand these macros, they define further runtime functions.
-EXPAND_MACROS = [
-  "BUFFER_VIEW_GETTER",
-  "DATA_VIEW_GETTER",
-  "DATA_VIEW_SETTER",
-  "ELEMENTS_KIND_CHECK_RUNTIME_FUNCTION",
-  "FIXED_TYPED_ARRAYS_CHECK_RUNTIME_FUNCTION",
-  "RUNTIME_UNARY_MATH",
-  "TYPED_ARRAYS_CHECK_RUNTIME_FUNCTION",
-]
+FILENAME = "src/runtime.h"
+LISTHEAD = re.compile(r"#define\s+(\w+LIST\w*)\((\w+)\)")
+LISTBODY = re.compile(r".*\\$")
+BLACKLIST = ['INLINE_FUNCTION_LIST']
 
 
 class Function(object):
   def __init__(self, match):
-    self.name = match.group(1)
+    self.name = match.group(1).strip()
+
+def ListMacroRe(list):
+  macro = LISTHEAD.match(list[0]).group(2)
+  re_string = "\s*%s\((\w+)" % macro
+  return re.compile(re_string)
 
 
-class Macro(object):
-  def __init__(self, match):
-    self.name = match.group(1)
-    self.args = [s.strip() for s in match.group(2).split(",")]
-    self.lines = []
-    self.indentation = 0
-    self.AddLine(match.group(3))
-
-  def AddLine(self, line):
-    if not line: return
-    if not self.lines:
-      # This is the first line, detect indentation.
-      self.indentation = len(line) - len(line.lstrip())
-    line = line.rstrip("\\\n ")
-    if not line: return
-    assert len(line[:self.indentation].strip()) == 0, \
-        ("expected whitespace: '%s', full line: '%s'" %
-         (line[:self.indentation], line))
-    line = line[self.indentation:]
-    if not line: return
-    self.lines.append(line + "\n")
-
-  def Finalize(self):
-    for arg in self.args:
-      pattern = re.compile(r"(##|\b)%s(##|\b)" % arg)
-      for i in range(len(self.lines)):
-        self.lines[i] = re.sub(pattern, "%%(%s)s" % arg, self.lines[i])
-
-  def FillIn(self, arg_values):
-    filler = {}
-    assert len(arg_values) == len(self.args)
-    for i in range(len(self.args)):
-      filler[self.args[i]] = arg_values[i]
-    result = []
-    for line in self.lines:
-      result.append(line % filler)
-    return result
-
-
-def ReadFileAndExpandMacros(filename):
-  found_macros = {}
-  expanded_lines = []
+def FindLists(filename):
+  lists = []
+  current_list = []
+  mode = "SEARCHING"
   with open(filename, "r") as f:
-    found_macro = None
     for line in f:
-      if found_macro is not None:
-        found_macro.AddLine(line)
-        if not line.endswith("\\\n"):
-          found_macro.Finalize()
-          found_macro = None
-        continue
-
-      match = MACRO.match(line)
-      if match:
-        found_macro = Macro(match)
-        if found_macro.name in EXPAND_MACROS:
-          found_macros[found_macro.name] = found_macro
-        else:
-          found_macro = None
-        continue
-
-      match = FIRST_WORD.match(line)
-      if match:
-        first_word = match.group(1)
-        if first_word in found_macros:
-          MACRO_CALL = re.compile("%s\(([^)]*)\)" % first_word)
-          match = MACRO_CALL.match(line)
-          assert match
-          args = [s.strip() for s in match.group(1).split(",")]
-          expanded_lines += found_macros[first_word].FillIn(args)
-          continue
-
-      expanded_lines.append(line)
-  return expanded_lines
+      if mode == "SEARCHING":
+        match = LISTHEAD.match(line)
+        if match and match.group(1) not in BLACKLIST:
+          mode = "APPENDING"
+          current_list.append(line)
+      else:
+        current_list.append(line)
+        match = LISTBODY.match(line)
+        if not match:
+          mode = "SEARCHING"
+          lists.append(current_list)
+          current_list = []
+  return lists
 
 
 # Detects runtime functions by parsing FILENAME.
 def FindRuntimeFunctions():
   functions = []
-  expanded_lines = ReadFileAndExpandMacros(FILENAME)
-  function = None
-  partial_line = ""
-  for line in expanded_lines:
-    # Multi-line definition support, ignoring macros.
-    if line.startswith("RUNTIME_FUNCTION") and not line.endswith("{\n"):
-      if line.endswith("\\\n"): continue
-      partial_line = line.rstrip()
-      continue
-    if partial_line:
-      partial_line += " " + line.strip()
-      if partial_line.endswith("{"):
-        line = partial_line
-        partial_line = ""
-      else:
-        continue
-
-    match = FUNCTION.match(line)
-    if match:
-      function = Function(match)
-      continue
-    if function is None: continue
-
-    if line == FUNCTIONEND:
-      if function is not None:
-        functions.append(function)
-        function = None
+  lists = FindLists(FILENAME)
+  for list in lists:
+    function_re = ListMacroRe(list)
+    for line in list:
+      match = function_re.match(line)
+      if match:
+        functions.append(Function(match))
   return functions
 
 
 class Builtin(object):
   def __init__(self, match):
     self.name = match.group(1)
 
 
 def FindJSNatives():
   PATH = "src"
@@ skipping 42 matching lines @@
 
   if errors > 0:
     return 1
   print("Runtime/Natives name clashes: checked %d/%d functions, all good." %
         (len(functions), len(natives)))
   return 0
 
 
 if __name__ == "__main__":
   sys.exit(Main())