kc3-lang/angle/src/tests/preprocessor_tests/location_test.cpp

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• Author : Stuart Morgan
  Date : 2019-08-14 12:25:12
  Hash : 9d737966
  Message : Standardize copyright notices to project style For all "ANGLE Project" copyrights, standardize to the format specified by the style guide. Changes: - "Copyright (c)" and "Copyright(c)" changed to just "Copyright". - Removed the second half of date ranges ("Y1Y1-Y2Y2"->"Y1Y1"). - Fixed a small number of files that had no copyright date using the initial commit year from the version control history. - Fixed one instance of copyright being "The ANGLE Project" rather than "The ANGLE Project Authors" These changes are applied both to the copyright of source file, and where applicable to copyright statements that are generated by templates. BUG=angleproject:3811 Change-Id: I973dd65e4ef9deeba232d5be74c768256a0eb2e5 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1754397 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>

• src/tests/preprocessor_tests/location_test.cpp

• //
  // Copyright 2012 The ANGLE 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.
  //
  
  #include "PreprocessorTest.h"
  #include "compiler/preprocessor/Token.h"
  
  namespace angle
  {
  
  class LocationTest : public PreprocessorTest
  {
    protected:
      LocationTest() : PreprocessorTest(SH_GLES2_SPEC) {}
  
      void expectLocation(int count,
                          const char *const string[],
                          const int length[],
                          const pp::SourceLocation &location)
      {
          ASSERT_TRUE(mPreprocessor.init(count, string, length));
  
          pp::Token token;
          mPreprocessor.lex(&token);
          EXPECT_EQ(pp::Token::IDENTIFIER, token.type);
          EXPECT_EQ("foo", token.text);
  
          EXPECT_EQ(location.file, token.location.file);
          EXPECT_EQ(location.line, token.location.line);
      }
  };
  
  TEST_F(LocationTest, String0_Line1)
  {
      const char *str = "foo";
      pp::SourceLocation loc(0, 1);
  
      SCOPED_TRACE("String0_Line1");
      expectLocation(1, &str, nullptr, loc);
  }
  
  TEST_F(LocationTest, String0_Line2)
  {
      const char *str = "\nfoo";
      pp::SourceLocation loc(0, 2);
  
      SCOPED_TRACE("String0_Line2");
      expectLocation(1, &str, nullptr, loc);
  }
  
  TEST_F(LocationTest, String1_Line1)
  {
      const char *const str[] = {"\n\n", "foo"};
      pp::SourceLocation loc(1, 1);
  
      SCOPED_TRACE("String1_Line1");
      expectLocation(2, str, nullptr, loc);
  }
  
  TEST_F(LocationTest, String1_Line2)
  {
      const char *const str[] = {"\n\n", "\nfoo"};
      pp::SourceLocation loc(1, 2);
  
      SCOPED_TRACE("String1_Line2");
      expectLocation(2, str, nullptr, loc);
  }
  
  TEST_F(LocationTest, NewlineInsideCommentCounted)
  {
      const char *str = "/*\n\n*/foo";
      pp::SourceLocation loc(0, 3);
  
      SCOPED_TRACE("NewlineInsideCommentCounted");
      expectLocation(1, &str, nullptr, loc);
  }
  
  TEST_F(LocationTest, ErrorLocationAfterComment)
  {
      const char *str = "/*\n\n*/@";
  
      ASSERT_TRUE(mPreprocessor.init(1, &str, nullptr));
      EXPECT_CALL(mDiagnostics,
                  print(pp::Diagnostics::PP_INVALID_CHARACTER, pp::SourceLocation(0, 3), "@"));
  
      pp::Token token;
      mPreprocessor.lex(&token);
  }
  
  // The location of a token straddling two or more strings is that of the
  // first character of the token.
  
  TEST_F(LocationTest, TokenStraddlingTwoStrings)
  {
      const char *const str[] = {"f", "oo"};
      pp::SourceLocation loc(0, 1);
  
      SCOPED_TRACE("TokenStraddlingTwoStrings");
      expectLocation(2, str, nullptr, loc);
  }
  
  TEST_F(LocationTest, TokenStraddlingThreeStrings)
  {
      const char *const str[] = {"f", "o", "o"};
      pp::SourceLocation loc(0, 1);
  
      SCOPED_TRACE("TokenStraddlingThreeStrings");
      expectLocation(3, str, nullptr, loc);
  }
  
  TEST_F(LocationTest, EndOfFileWithoutNewline)
  {
      const char *const str[] = {"foo"};
      ASSERT_TRUE(mPreprocessor.init(1, str, nullptr));
  
      pp::Token token;
      mPreprocessor.lex(&token);
      EXPECT_EQ(pp::Token::IDENTIFIER, token.type);
      EXPECT_EQ("foo", token.text);
      EXPECT_EQ(0, token.location.file);
      EXPECT_EQ(1, token.location.line);
  
      mPreprocessor.lex(&token);
      EXPECT_EQ(pp::Token::LAST, token.type);
      EXPECT_EQ(0, token.location.file);
      EXPECT_EQ(1, token.location.line);
  }
  
  TEST_F(LocationTest, EndOfFileAfterNewline)
  {
      const char *const str[] = {"foo\n"};
      ASSERT_TRUE(mPreprocessor.init(1, str, nullptr));
  
      pp::Token token;
      mPreprocessor.lex(&token);
      EXPECT_EQ(pp::Token::IDENTIFIER, token.type);
      EXPECT_EQ("foo", token.text);
      EXPECT_EQ(0, token.location.file);
      EXPECT_EQ(1, token.location.line);
  
      mPreprocessor.lex(&token);
      EXPECT_EQ(pp::Token::LAST, token.type);
      EXPECT_EQ(0, token.location.file);
      EXPECT_EQ(2, token.location.line);
  }
  
  TEST_F(LocationTest, EndOfFileAfterEmptyString)
  {
      const char *const str[] = {"foo\n", "\n", ""};
      ASSERT_TRUE(mPreprocessor.init(3, str, nullptr));
  
      pp::Token token;
      mPreprocessor.lex(&token);
      EXPECT_EQ(pp::Token::IDENTIFIER, token.type);
      EXPECT_EQ("foo", token.text);
      EXPECT_EQ(0, token.location.file);
      EXPECT_EQ(1, token.location.line);
  
      mPreprocessor.lex(&token);
      EXPECT_EQ(pp::Token::LAST, token.type);
      EXPECT_EQ(2, token.location.file);
      EXPECT_EQ(1, token.location.line);
  }
  
  TEST_F(LocationTest, ValidLineDirective1)
  {
      const char *str =
          "#line 10\n"
          "foo";
      pp::SourceLocation loc(0, 10);
  
      SCOPED_TRACE("ValidLineDirective1");
      expectLocation(1, &str, nullptr, loc);
  }
  
  TEST_F(LocationTest, ValidLineDirective2)
  {
      const char *str =
          "#line 10 20\n"
          "foo";
      pp::SourceLocation loc(20, 10);
  
      SCOPED_TRACE("ValidLineDirective2");
      expectLocation(1, &str, nullptr, loc);
  }
  
  TEST_F(LocationTest, LineDirectiveCommentsIgnored)
  {
      const char *str =
          "/* bar */"
          "#"
          "/* bar */"
          "line"
          "/* bar */"
          "10"
          "/* bar */"
          "20"
          "/* bar */"
          "// bar   "
          "\n"
          "foo";
      pp::SourceLocation loc(20, 10);
  
      SCOPED_TRACE("LineDirectiveCommentsIgnored");
      expectLocation(1, &str, nullptr, loc);
  }
  
  TEST_F(LocationTest, LineDirectiveWithMacro1)
  {
      const char *str =
          "#define L 10\n"
          "#define F(x) x\n"
          "#line L F(20)\n"
          "foo";
      pp::SourceLocation loc(20, 10);
  
      SCOPED_TRACE("LineDirectiveWithMacro1");
      expectLocation(1, &str, nullptr, loc);
  }
  
  TEST_F(LocationTest, LineDirectiveWithMacro2)
  {
      const char *str =
          "#define LOC 10 20\n"
          "#line LOC\n"
          "foo";
      pp::SourceLocation loc(20, 10);
  
      SCOPED_TRACE("LineDirectiveWithMacro2");
      expectLocation(1, &str, nullptr, loc);
  }
  
  TEST_F(LocationTest, LineDirectiveWithPredefinedMacro)
  {
      const char *str =
          "#line __LINE__ __FILE__\n"
          "foo";
      pp::SourceLocation loc(0, 1);
  
      SCOPED_TRACE("LineDirectiveWithMacro");
      expectLocation(1, &str, nullptr, loc);
  }
  
  TEST_F(LocationTest, LineDirectiveNewlineBeforeStringBreak)
  {
      const char *const str[] = {"#line 10 20\n", "foo"};
      // String number is incremented after it is set by the line directive.
      // Also notice that line number is reset after the string break.
      pp::SourceLocation loc(21, 1);
  
      SCOPED_TRACE("LineDirectiveNewlineBeforeStringBreak");
      expectLocation(2, str, nullptr, loc);
  }
  
  TEST_F(LocationTest, LineDirectiveNewlineAfterStringBreak)
  {
      const char *const str[] = {"#line 10 20", "\nfoo"};
      // String number is incremented before it is set by the line directive.
      pp::SourceLocation loc(20, 10);
  
      SCOPED_TRACE("LineDirectiveNewlineAfterStringBreak");
      expectLocation(2, str, nullptr, loc);
  }
  
  TEST_F(LocationTest, LineDirectiveMissingNewline)
  {
      const char *str = "#line 10";
      ASSERT_TRUE(mPreprocessor.init(1, &str, nullptr));
  
      using testing::_;
      // Error reported about EOF.
      EXPECT_CALL(mDiagnostics, print(pp::Diagnostics::PP_EOF_IN_DIRECTIVE, _, _));
  
      pp::Token token;
      mPreprocessor.lex(&token);
  }
  
  // Test for an error being generated when the line number overflows - regular version
  TEST_F(LocationTest, LineOverflowRegular)
  {
      const char *str = "#line 0x7FFFFFFF\n\n";
  
      ASSERT_TRUE(mPreprocessor.init(1, &str, nullptr));
  
      using testing::_;
      // Error reported about EOF.
      EXPECT_CALL(mDiagnostics, print(pp::Diagnostics::PP_TOKENIZER_ERROR, _, _));
  
      pp::Token token;
      mPreprocessor.lex(&token);
  }
  
  // Test for an error being generated when the line number overflows - inside /* */ comment version
  TEST_F(LocationTest, LineOverflowInComment)
  {
      const char *str = "#line 0x7FFFFFFF\n/*\n*/";
  
      ASSERT_TRUE(mPreprocessor.init(1, &str, nullptr));
  
      using testing::_;
      // Error reported about EOF.
      EXPECT_CALL(mDiagnostics, print(pp::Diagnostics::PP_TOKENIZER_ERROR, _, _));
  
      pp::Token token;
      mPreprocessor.lex(&token);
  }
  
  // Test for an error being generated when the line number overflows - inside \n continuation
  // version
  TEST_F(LocationTest, LineOverflowInContinuationN)
  {
      const char *str = "#line 0x7FFFFFFF\n \\\n\n";
  
      ASSERT_TRUE(mPreprocessor.init(1, &str, nullptr));
  
      using testing::_;
      // Error reported about EOF.
      EXPECT_CALL(mDiagnostics, print(pp::Diagnostics::PP_TOKENIZER_ERROR, _, _));
  
      pp::Token token;
      mPreprocessor.lex(&token);
  }
  
  // Test for an error being generated when the line number overflows - inside \r\n continuation
  // version
  TEST_F(LocationTest, LineOverflowInContinuationRN)
  {
      const char *str = "#line 0x7FFFFFFF\n \\\r\n\n";
  
      ASSERT_TRUE(mPreprocessor.init(1, &str, nullptr));
  
      using testing::_;
      // Error reported about EOF.
      EXPECT_CALL(mDiagnostics, print(pp::Diagnostics::PP_TOKENIZER_ERROR, _, _));
  
      pp::Token token;
      mPreprocessor.lex(&token);
  }
  
  struct LineTestParam
  {
      const char *str;
      pp::Diagnostics::ID id;
  };
  
  class InvalidLineTest : public LocationTest, public testing::WithParamInterface<LineTestParam>
  {};
  
  TEST_P(InvalidLineTest, Identified)
  {
      LineTestParam param = GetParam();
      ASSERT_TRUE(mPreprocessor.init(1, &param.str, nullptr));
  
      using testing::_;
      // Invalid line directive call.
      EXPECT_CALL(mDiagnostics, print(param.id, pp::SourceLocation(0, 1), _));
  
      pp::Token token;
      mPreprocessor.lex(&token);
  }
  
  static const LineTestParam kParams[] = {
      {"#line\n", pp::Diagnostics::PP_INVALID_LINE_DIRECTIVE},
      {"#line foo\n", pp::Diagnostics::PP_INVALID_LINE_NUMBER},
      {"#line defined(foo)\n", pp::Diagnostics::PP_INVALID_LINE_NUMBER},
      {"#line 10 foo\n", pp::Diagnostics::PP_INVALID_FILE_NUMBER},
      {"#line 10 20 foo\n", pp::Diagnostics::PP_UNEXPECTED_TOKEN},
      {"#line 0xffffffff\n", pp::Diagnostics::PP_INTEGER_OVERFLOW},
      {"#line 10 0xffffffff\n", pp::Diagnostics::PP_INTEGER_OVERFLOW}};
  
  INSTANTIATE_TEST_SUITE_P(All, InvalidLineTest, testing::ValuesIn(kParams));
  
  struct LineExpressionTestParam
  {
      const char *expression;
      int expectedLine;
  };
  
  class LineExpressionTest : public LocationTest,
                             public testing::WithParamInterface<LineExpressionTestParam>
  {};
  
  TEST_P(LineExpressionTest, ExpressionEvaluation)
  {
      LineExpressionTestParam param = GetParam();
      const char *strs[3]           = {"#line ", param.expression, "\nfoo"};
  
      pp::SourceLocation loc(2, param.expectedLine);
  
      expectLocation(3, strs, nullptr, loc);
  }
  
  static const LineExpressionTestParam kParamsLineExpressionTest[] = {
      {"1 + 2", 3},  {"5 - 3", 2},        {"7 * 11", 77},  {"20 / 10", 2},  {"10 % 5", 0},
      {"7 && 3", 1}, {"7 || 0", 1},       {"11 == 11", 1}, {"11 != 11", 0}, {"11 > 7", 1},
      {"11 < 7", 0}, {"11 >= 7", 1},      {"11 <= 7", 0},  {"!11", 0},      {"-1", -1},
      {"+9", 9},     {"(1 + 2) * 4", 12}, {"3 | 5", 7},    {"3 ^ 5", 6},    {"3 & 5", 1},
      {"~5", ~5},    {"2 << 3", 16},      {"16 >> 2", 4}};
  
  INSTANTIATE_TEST_SUITE_P(All, LineExpressionTest, testing::ValuesIn(kParamsLineExpressionTest));
  
  }  // namespace angle