Flat string reader

test/cctest/test-regexp.cc

 // Copyright 2006-2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 29 matching lines @@
 #include "regexp-macro-assembler.h"
 #include "regexp-macro-assembler-re2k.h"
 #include "interpreter-re2k.h"
 
 
 using namespace v8::internal;
 
 
 static SmartPointer<const char> Parse(const char* input) {
   v8::HandleScope scope;
-  unibrow::Utf8InputBuffer<> buffer(input, strlen(input));
   ZoneScope zone_scope(DELETE_ON_EXIT);
+  FlatStringReader reader(CStrVector(input));
   RegExpParseResult result;
-  CHECK(v8::internal::ParseRegExp(&buffer, &result));
+  CHECK(v8::internal::ParseRegExp(&reader, &result));
   CHECK(result.tree != NULL);
   CHECK(result.error.is_null());
   SmartPointer<const char> output = result.tree->ToString();
   return output;
 }
 
 static bool ParseEscapes(const char* input) {
   v8::HandleScope scope;
   unibrow::Utf8InputBuffer<> buffer(input, strlen(input));
   ZoneScope zone_scope(DELETE_ON_EXIT);
+  FlatStringReader reader(CStrVector(input));
   RegExpParseResult result;
-  CHECK(v8::internal::ParseRegExp(&buffer, &result));
+  CHECK(v8::internal::ParseRegExp(&reader, &result));
   CHECK(result.tree != NULL);
   CHECK(result.error.is_null());
   return result.has_character_escapes;
 }
 
 
 #define CHECK_PARSE_EQ(input, expected) CHECK_EQ(expected, *Parse(input))
 #define CHECK_ESCAPES(input, has_escapes) CHECK_EQ(has_escapes, \
                                                    ParseEscapes(input));
 
@@ skipping 144 matching lines @@
   CHECK_ESCAPES("(a)\\1", false);
 }
 
 TEST(ParserRegression) {
   CHECK_PARSE_EQ("[A-Z$-][x]", "(! [A-Z $ -] [x])");
 }
 
 static void ExpectError(const char* input,
                         const char* expected) {
   v8::HandleScope scope;
-  unibrow::Utf8InputBuffer<> buffer(input, strlen(input));
   ZoneScope zone_scope(DELETE_ON_EXIT);
+  FlatStringReader reader(CStrVector(input));
   RegExpParseResult result;
-  CHECK_EQ(false, v8::internal::ParseRegExp(&buffer, &result));
+  CHECK_EQ(false, v8::internal::ParseRegExp(&reader, &result));
   CHECK(result.tree == NULL);
   CHECK(!result.error.is_null());
   SmartPointer<char> str = result.error->ToCString(ALLOW_NULLS);
   CHECK_EQ(expected, *str);
 }
 
 
 TEST(Errors) {
   V8::Initialize(NULL);
   const char* kEndBackslash = "\\ at end of pattern";
@@ skipping 84 matching lines @@
   TestCharacterClassEscapes('d', IsDigit);
   TestCharacterClassEscapes('D', NotDigit);
   TestCharacterClassEscapes('s', IsWhiteSpace);
   TestCharacterClassEscapes('S', NotWhiteSpace);
   TestCharacterClassEscapes('w', IsWord);
   TestCharacterClassEscapes('W', NotWord);
 }
 
 
 static RegExpNode* Compile(const char* input) {
-  unibrow::Utf8InputBuffer<> buffer(input, strlen(input));
+  FlatStringReader reader(CStrVector(input));
   RegExpParseResult result;
-  if (!v8::internal::ParseRegExp(&buffer, &result))
+  if (!v8::internal::ParseRegExp(&reader, &result))
     return NULL;
   RegExpNode* node = NULL;
   RegExpEngine::Compile(&result, &node, false);
   return node;
 }
 
 
 static void Execute(const char* input,
                     const char* str,
                     bool dot_output = false) {
@@ skipping 414 matching lines @@
   v8::HandleScope scope;
   ZoneScope zone_scope(DELETE_ON_EXIT);
   RegExpNode* node = Compile("(a|^b|c)");
   CHECK(node->info()->determine_start);
 }
 
 
 TEST(Graph) {
   Execute("(a|^b|c)", "", true);
 }