V1 of //tools/binary_size rewrite

tools/binary_size/function_signature_test.py

+#!/usr/bin/env python
+# Copyright 2017 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.
+
+import logging
+import sys
+import unittest
+
+import function_signature
+
+
+class AnalyzeTest(unittest.TestCase):
+
+  def testParseFunctionSignature(self):
+    def check(ret_part, name_part, params_part, after_part=''):
+      signature = ''.join((name_part, params_part, after_part))
+      got_full, got_name = function_signature.Parse(signature)
+      self.assertEqual(name_part + after_part, got_name)
+      self.assertEqual(name_part + params_part + after_part, got_full)
+      if ret_part:
+        signature = ''.join((ret_part, name_part, params_part, after_part))
+        got_full, got_name = function_signature.Parse(signature)
+        self.assertEqual(name_part + after_part, got_name)
+        self.assertEqual(name_part + params_part + after_part, got_full)
+
+    check('bool ',
+          'foo::Bar<unsigned int, int>::Do<unsigned int>',
+          '(unsigned int)')
+    check('base::internal::CheckedNumeric<int>& ',
+          'base::internal::CheckedNumeric<int>::operator+=<int>',
+          '(int)')
+    check('base::internal::CheckedNumeric<int>& ',
+          'b::i::CheckedNumeric<int>::MathOp<b::i::CheckedAddOp, int>',
+          '(int)')
+    check('', '(anonymous namespace)::GetBridge', '(long long)')
+    check('', 'operator delete', '(void*)')
+    check('', 'b::i::DstRangeRelationToSrcRangeImpl<long long, long long, '
+              'std::__ndk1::numeric_limits, (b::i::Integer)1>::Check',
+          '(long long)')
+    check('', 'cc::LayerIterator::operator cc::LayerIteratorPosition const',
+          '()',
+          ' const')
+    check('decltype ({parm#1}((SkRecords::NoOp)())) ',
+          'SkRecord::Record::visit<SkRecords::Draw&>',
+          '(SkRecords::Draw&)',
+          ' const')
+    check('', 'base::internal::BindStateBase::BindStateBase',
+          '(void (*)(), void (*)(base::internal::BindStateBase const*))')
+    check('int ', 'std::__ndk1::__c11_atomic_load<int>',
+          '(std::__ndk1::<int> volatile*, std::__ndk1::memory_order)')
+    check('std::basic_ostream<char, std::char_traits<char> >& ',
+          'std::operator<< <std::char_traits<char> >',
+          '(std::basic_ostream<char, std::char_traits<char> >&, char)')
+    check('v8::internal::SlotCallbackResult ',
+          'v8::internal::UpdateTypedSlotHelper::UpdateCodeTarget'
+          '<v8::PointerUpdateJobTraits<(v8::Direction)1>::Foo(v8::Heap*, '
+          'v8::MemoryChunk*)::{lambda(v8::SlotType, unsigned char*)#2}::'
+          'operator()(v8::SlotType, unsigned char*, unsigned char*) '
+          'const::{lambda(v8::Object**)#1}>',
+          '(v8::RelocInfo, v8::Foo<(v8::PointerDirection)1>::Bar(v8::Heap*)::'
+          '{lambda(v8::SlotType)#2}::operator()(v8::SlotType) const::'
+          '{lambda(v8::Object**)#1})')
+    check('',
+          'WTF::StringAppend<WTF::String, WTF::String>::operator WTF::String',
+          '()',
+          ' const')
+    # Make sure []s are not removed from the name part.
+    check('', 'Foo', '()', ' [virtual thunk]')
+
+    # SkArithmeticImageFilter.cpp has class within function body. e.g.:
+    #   ArithmeticFP::onCreateGLSLInstance() looks like:
+    # class ArithmeticFP {
+    #   GrGLSLFragmentProcessor* onCreateGLSLInstance() const {
+    #     class GLSLFP {
+    #       void emitCode(EmitArgs& args) { ... }
+    #     };
+    #     ...
+    #   }
+    # };
+    SIG = '(anonymous namespace)::Foo::Baz() const::GLSLFP::onData(Foo, Bar)'
+    got_full, got_name = function_signature.Parse(SIG)
+    self.assertEqual('(anonymous namespace)::Foo::Baz', got_name)
+    self.assertEqual(SIG, got_full)
+
+
+if __name__ == '__main__':
+  logging.basicConfig(level=logging.DEBUG,
+                      format='%(levelname).1s %(relativeCreated)6d %(message)s')
+  unittest.main()