Reland of GN: Remove some dead code that was confusing. https://codereview.chromium.org/202733003/

BUG=354626
TBR=brettw@chromium.org

Review URL: https://codereview.chromium.org/213233005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@259754 0039d316-1c4b-4281-b951-d872f2087c98

3 files changed, 0 insertions, 41 deletions

diff --git a/tools/gn/token.cc b/tools/gn/token.cc
index ba59526..70ce2a1 100644
--- a/tools/gn/token.cc
+++ b/tools/gn/token.cc
@@ -6,25 +6,6 @@
 
 #include "base/logging.h"
 
-namespace {
-
-std::string UnescapeString(const base::StringPiece& input) {
-  std::string result;
-  result.reserve(input.size());
-
-  for (size_t i = 0; i < input.size(); i++) {
-    if (input[i] == '\\') {
-      DCHECK(i < input.size() - 1);  // Last char shouldn't be a backslash or
-                                     // it would have escaped the terminator.
-      i++;  // Skip backslash, next char is a literal.
-    }
-    result.push_back(input[i]);
-  }
-  return result;
-}
-
-}  // namespace
-
 Token::Token() : type_(INVALID), value_() {
 }
 
@@ -43,10 +24,3 @@ bool Token::IsIdentifierEqualTo(const char* v) const {
 bool Token::IsStringEqualTo(const char* v) const {
   return type_ == STRING && value_ == v;
 }
-
-std::string Token::StringValue() const {
-  DCHECK(type() == STRING);
-
-  // Trim off the string terminators at the end.
-  return UnescapeString(value_.substr(1, value_.size() - 2));
-}
diff --git a/tools/gn/token.h b/tools/gn/token.h
index 69ef2fd..8c7cd58 100644
--- a/tools/gn/token.h
+++ b/tools/gn/token.h
@@ -69,10 +69,6 @@ class Token {
   bool IsIdentifierEqualTo(const char* v) const;
   bool IsStringEqualTo(const char* v) const;
 
-  // For STRING tokens, returns the string value (no quotes at end, does
-  // unescaping).
-  std::string StringValue() const;
-
  private:
   Type type_;
   base::StringPiece value_;
diff --git a/tools/gn/tokenizer_unittest.cc b/tools/gn/tokenizer_unittest.cc
index e8abdf4..45fd744 100644
--- a/tools/gn/tokenizer_unittest.cc
+++ b/tools/gn/tokenizer_unittest.cc
@@ -133,17 +133,6 @@ TEST(Tokenizer, FunctionCall) {
   EXPECT_TRUE(CheckTokenizer("fun(\"foo\") {\nfoo = 12}", fn));
 }
 
-TEST(Tokenizer, StringUnescaping) {
-  InputFile input(SourceFile("/test"));
-  input.SetContents("\"asd\\\"f\" \"\"");
-  Err err;
-  std::vector<Token> results = Tokenizer::Tokenize(&input, &err);
-
-  ASSERT_EQ(2u, results.size());
-  EXPECT_EQ("asd\"f", results[0].StringValue());
-  EXPECT_EQ("", results[1].StringValue());
-}
-
 TEST(Tokenizer, Locations) {
   InputFile input(SourceFile("/test"));
   input.SetContents("1 2 \"three\"\n  4");