| // |
| // 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 IfTest : public SimplePreprocessorTest |
| {}; |
| |
| TEST_F(IfTest, If_0) |
| { |
| const char *str = |
| "pass_1\n" |
| "#if 0\n" |
| "fail\n" |
| "#endif\n" |
| "pass_2\n"; |
| const char *expected = |
| "pass_1\n" |
| "\n" |
| "\n" |
| "\n" |
| "pass_2\n"; |
| |
| preprocess(str, expected); |
| } |
| |
| TEST_F(IfTest, If_1) |
| { |
| const char *str = |
| "pass_1\n" |
| "#if 1\n" |
| "pass_2\n" |
| "#endif\n" |
| "pass_3\n"; |
| const char *expected = |
| "pass_1\n" |
| "\n" |
| "pass_2\n" |
| "\n" |
| "pass_3\n"; |
| |
| preprocess(str, expected); |
| } |
| |
| TEST_F(IfTest, If_0_Else) |
| { |
| const char *str = |
| "pass_1\n" |
| "#if 0\n" |
| "fail\n" |
| "#else\n" |
| "pass_2\n" |
| "#endif\n" |
| "pass_3\n"; |
| const char *expected = |
| "pass_1\n" |
| "\n" |
| "\n" |
| "\n" |
| "pass_2\n" |
| "\n" |
| "pass_3\n"; |
| |
| preprocess(str, expected); |
| } |
| |
| TEST_F(IfTest, If_1_Else) |
| { |
| const char *str = |
| "pass_1\n" |
| "#if 1\n" |
| "pass_2\n" |
| "#else\n" |
| "fail\n" |
| "#endif\n" |
| "pass_3\n"; |
| const char *expected = |
| "pass_1\n" |
| "\n" |
| "pass_2\n" |
| "\n" |
| "\n" |
| "\n" |
| "pass_3\n"; |
| |
| preprocess(str, expected); |
| } |
| |
| TEST_F(IfTest, If_0_Elif) |
| { |
| const char *str = |
| "pass_1\n" |
| "#if 0\n" |
| "fail_1\n" |
| "#elif 0\n" |
| "fail_2\n" |
| "#elif 1\n" |
| "pass_2\n" |
| "#elif 1\n" |
| "fail_3\n" |
| "#else\n" |
| "fail_4\n" |
| "#endif\n" |
| "pass_3\n"; |
| const char *expected = |
| "pass_1\n" |
| "\n" |
| "\n" |
| "\n" |
| "\n" |
| "\n" |
| "pass_2\n" |
| "\n" |
| "\n" |
| "\n" |
| "\n" |
| "\n" |
| "pass_3\n"; |
| |
| preprocess(str, expected); |
| } |
| |
| TEST_F(IfTest, If_1_Elif) |
| { |
| const char *str = |
| "pass_1\n" |
| "#if 1\n" |
| "pass_2\n" |
| "#elif 0\n" |
| "fail_1\n" |
| "#elif 1\n" |
| "fail_2\n" |
| "#else\n" |
| "fail_4\n" |
| "#endif\n" |
| "pass_3\n"; |
| const char *expected = |
| "pass_1\n" |
| "\n" |
| "pass_2\n" |
| "\n" |
| "\n" |
| "\n" |
| "\n" |
| "\n" |
| "\n" |
| "\n" |
| "pass_3\n"; |
| |
| preprocess(str, expected); |
| } |
| |
| TEST_F(IfTest, If_Elif_Else) |
| { |
| const char *str = |
| "pass_1\n" |
| "#if 0\n" |
| "fail_1\n" |
| "#elif 0\n" |
| "fail_2\n" |
| "#elif 0\n" |
| "fail_3\n" |
| "#else\n" |
| "pass_2\n" |
| "#endif\n" |
| "pass_3\n"; |
| const char *expected = |
| "pass_1\n" |
| "\n" |
| "\n" |
| "\n" |
| "\n" |
| "\n" |
| "\n" |
| "\n" |
| "pass_2\n" |
| "\n" |
| "pass_3\n"; |
| |
| preprocess(str, expected); |
| } |
| |
| TEST_F(IfTest, If_0_Nested) |
| { |
| const char *str = |
| "pass_1\n" |
| "#if 0\n" |
| "fail_1\n" |
| "#if 1\n" |
| "fail_2\n" |
| "#else\n" |
| "fail_3\n" |
| "#endif\n" |
| "#else\n" |
| "pass_2\n" |
| "#endif\n" |
| "pass_3\n"; |
| const char *expected = |
| "pass_1\n" |
| "\n" |
| "\n" |
| "\n" |
| "\n" |
| "\n" |
| "\n" |
| "\n" |
| "\n" |
| "pass_2\n" |
| "\n" |
| "pass_3\n"; |
| |
| preprocess(str, expected); |
| } |
| |
| TEST_F(IfTest, If_1_Nested) |
| { |
| const char *str = |
| "pass_1\n" |
| "#if 1\n" |
| "pass_2\n" |
| "#if 1\n" |
| "pass_3\n" |
| "#else\n" |
| "fail_1\n" |
| "#endif\n" |
| "#else\n" |
| "fail_2\n" |
| "#endif\n" |
| "pass_4\n"; |
| const char *expected = |
| "pass_1\n" |
| "\n" |
| "pass_2\n" |
| "\n" |
| "pass_3\n" |
| "\n" |
| "\n" |
| "\n" |
| "\n" |
| "\n" |
| "\n" |
| "pass_4\n"; |
| |
| preprocess(str, expected); |
| } |
| |
| TEST_F(IfTest, OperatorPrecedence) |
| { |
| const char *str = |
| "#if 1 + 2 * 3 + - (26 % 17 - + 4 / 2)\n" |
| "fail_1\n" |
| "#else\n" |
| "pass_1\n" |
| "#endif\n"; |
| const char *expected = |
| "\n" |
| "\n" |
| "\n" |
| "pass_1\n" |
| "\n"; |
| |
| preprocess(str, expected); |
| } |
| |
| TEST_F(IfTest, OperatorDefined) |
| { |
| const char *str = |
| "#if defined foo\n" |
| "fail_1\n" |
| "#else\n" |
| "pass_1\n" |
| "#endif\n" |
| "#define foo\n" |
| "#if defined(foo)\n" |
| "pass_2\n" |
| "#else\n" |
| "fail_2\n" |
| "#endif\n" |
| "#undef foo\n" |
| "#if defined ( foo ) \n" |
| "fail_3\n" |
| "#else\n" |
| "pass_3\n" |
| "#endif\n"; |
| const char *expected = |
| "\n" |
| "\n" |
| "\n" |
| "pass_1\n" |
| "\n" |
| "\n" |
| "\n" |
| "pass_2\n" |
| "\n" |
| "\n" |
| "\n" |
| "\n" |
| "\n" |
| "\n" |
| "\n" |
| "pass_3\n" |
| "\n"; |
| |
| preprocess(str, expected); |
| } |
| |
| TEST_F(IfTest, OperatorEQ) |
| { |
| const char *str = |
| "#if 4 - 1 == 2 + 1\n" |
| "pass\n" |
| "#else\n" |
| "fail\n" |
| "#endif\n"; |
| const char *expected = |
| "\n" |
| "pass\n" |
| "\n" |
| "\n" |
| "\n"; |
| |
| preprocess(str, expected); |
| } |
| |
| TEST_F(IfTest, OperatorNE) |
| { |
| const char *str = |
| "#if 1 != 2\n" |
| "pass\n" |
| "#else\n" |
| "fail\n" |
| "#endif\n"; |
| const char *expected = |
| "\n" |
| "pass\n" |
| "\n" |
| "\n" |
| "\n"; |
| |
| preprocess(str, expected); |
| } |
| |
| TEST_F(IfTest, OperatorLess) |
| { |
| const char *str = |
| "#if 1 < 2\n" |
| "pass\n" |
| "#else\n" |
| "fail\n" |
| "#endif\n"; |
| const char *expected = |
| "\n" |
| "pass\n" |
| "\n" |
| "\n" |
| "\n"; |
| |
| preprocess(str, expected); |
| } |
| |
| TEST_F(IfTest, OperatorGreater) |
| { |
| const char *str = |
| "#if 2 > 1\n" |
| "pass\n" |
| "#else\n" |
| "fail\n" |
| "#endif\n"; |
| const char *expected = |
| "\n" |
| "pass\n" |
| "\n" |
| "\n" |
| "\n"; |
| |
| preprocess(str, expected); |
| } |
| |
| TEST_F(IfTest, OperatorLE) |
| { |
| const char *str = |
| "#if 1 <= 2\n" |
| "pass_1\n" |
| "#else\n" |
| "fail_1\n" |
| "#endif\n" |
| "#if 2 <= 2\n" |
| "pass_2\n" |
| "#else\n" |
| "fail_2\n" |
| "#endif\n"; |
| const char *expected = |
| "\n" |
| "pass_1\n" |
| "\n" |
| "\n" |
| "\n" |
| "\n" |
| "pass_2\n" |
| "\n" |
| "\n" |
| "\n"; |
| |
| preprocess(str, expected); |
| } |
| |
| TEST_F(IfTest, OperatorGE) |
| { |
| const char *str = |
| "#if 2 >= 1\n" |
| "pass_1\n" |
| "#else\n" |
| "fail_1\n" |
| "#endif\n" |
| "#if 2 >= 2\n" |
| "pass_2\n" |
| "#else\n" |
| "fail_2\n" |
| "#endif\n"; |
| const char *expected = |
| "\n" |
| "pass_1\n" |
| "\n" |
| "\n" |
| "\n" |
| "\n" |
| "pass_2\n" |
| "\n" |
| "\n" |
| "\n"; |
| |
| preprocess(str, expected); |
| } |
| |
| TEST_F(IfTest, OperatorBitwiseOR) |
| { |
| const char *str = |
| "#if (0xaaaaaaaa | 0x55555555) == 0xffffffff\n" |
| "pass\n" |
| "#else\n" |
| "fail\n" |
| "#endif\n"; |
| const char *expected = |
| "\n" |
| "pass\n" |
| "\n" |
| "\n" |
| "\n"; |
| |
| preprocess(str, expected); |
| } |
| |
| TEST_F(IfTest, OperatorBitwiseAND) |
| { |
| const char *str = |
| "#if (0xaaaaaaa & 0x5555555) == 0\n" |
| "pass\n" |
| "#else\n" |
| "fail\n" |
| "#endif\n"; |
| const char *expected = |
| "\n" |
| "pass\n" |
| "\n" |
| "\n" |
| "\n"; |
| |
| preprocess(str, expected); |
| } |
| |
| TEST_F(IfTest, OperatorBitwiseXOR) |
| { |
| const char *str = |
| "#if (0xaaaaaaa ^ 0x5555555) == 0xfffffff\n" |
| "pass\n" |
| "#else\n" |
| "fail\n" |
| "#endif\n"; |
| const char *expected = |
| "\n" |
| "pass\n" |
| "\n" |
| "\n" |
| "\n"; |
| |
| preprocess(str, expected); |
| } |
| |
| TEST_F(IfTest, OperatorBitwiseComplement) |
| { |
| const char *str = |
| "#if (~ 0xdeadbeef) == -3735928560\n" |
| "pass\n" |
| "#else\n" |
| "fail\n" |
| "#endif\n"; |
| const char *expected = |
| "\n" |
| "pass\n" |
| "\n" |
| "\n" |
| "\n"; |
| |
| preprocess(str, expected); |
| } |
| |
| TEST_F(IfTest, OperatorLeft) |
| { |
| const char *str = |
| "#if (1 << 12) == 4096\n" |
| "pass\n" |
| "#else\n" |
| "fail\n" |
| "#endif\n"; |
| const char *expected = |
| "\n" |
| "pass\n" |
| "\n" |
| "\n" |
| "\n"; |
| |
| preprocess(str, expected); |
| } |
| |
| TEST_F(IfTest, OperatorRight) |
| { |
| const char *str = |
| "#if (31762 >> 8) == 124\n" |
| "pass\n" |
| "#else\n" |
| "fail\n" |
| "#endif\n"; |
| const char *expected = |
| "\n" |
| "pass\n" |
| "\n" |
| "\n" |
| "\n"; |
| |
| preprocess(str, expected); |
| } |
| |
| TEST_F(IfTest, ExpressionWithMacros) |
| { |
| const char *str = |
| "#define one 1\n" |
| "#define two 2\n" |
| "#define three 3\n" |
| "#if one + two == three\n" |
| "pass\n" |
| "#else\n" |
| "fail\n" |
| "#endif\n"; |
| const char *expected = |
| "\n" |
| "\n" |
| "\n" |
| "\n" |
| "pass\n" |
| "\n" |
| "\n" |
| "\n"; |
| |
| preprocess(str, expected); |
| } |
| |
| TEST_F(IfTest, JunkInsideExcludedBlockIgnored) |
| { |
| const char *str = |
| "#if 0\n" |
| "foo !@#$%^&* .1bar\n" |
| "#foo\n" |
| "#if bar\n" |
| "fail\n" |
| "#endif\n" |
| "#else\n" |
| "pass\n" |
| "#endif\n"; |
| const char *expected = |
| "\n" |
| "\n" |
| "\n" |
| "\n" |
| "\n" |
| "\n" |
| "\n" |
| "pass\n" |
| "\n"; |
| |
| preprocess(str, expected); |
| } |
| |
| TEST_F(IfTest, Ifdef) |
| { |
| const char *str = |
| "#define foo\n" |
| "#ifdef foo\n" |
| "pass_1\n" |
| "#else\n" |
| "fail_1\n" |
| "#endif\n" |
| "#undef foo\n" |
| "#ifdef foo\n" |
| "fail_2\n" |
| "#else\n" |
| "pass_2\n" |
| "#endif\n"; |
| const char *expected = |
| "\n" |
| "\n" |
| "pass_1\n" |
| "\n" |
| "\n" |
| "\n" |
| "\n" |
| "\n" |
| "\n" |
| "\n" |
| "pass_2\n" |
| "\n"; |
| |
| preprocess(str, expected); |
| } |
| |
| TEST_F(IfTest, Ifndef) |
| { |
| const char *str = |
| "#define foo\n" |
| "#ifndef foo\n" |
| "fail_1\n" |
| "#else\n" |
| "pass_1\n" |
| "#endif\n" |
| "#undef foo\n" |
| "#ifndef foo\n" |
| "pass_2\n" |
| "#else\n" |
| "fail_2\n" |
| "#endif\n"; |
| const char *expected = |
| "\n" |
| "\n" |
| "\n" |
| "\n" |
| "pass_1\n" |
| "\n" |
| "\n" |
| "\n" |
| "pass_2\n" |
| "\n" |
| "\n" |
| "\n"; |
| |
| preprocess(str, expected); |
| } |
| |
| TEST_F(IfTest, MissingExpression) |
| { |
| const char *str = |
| "#if\n" |
| "#endif\n"; |
| |
| EXPECT_CALL(mDiagnostics, print(pp::Diagnostics::PP_INVALID_EXPRESSION, |
| pp::SourceLocation(0, 1), "syntax error")); |
| |
| preprocess(str); |
| } |
| |
| TEST_F(IfTest, DivisionByZero) |
| { |
| const char *str = |
| "#if 1 / (3 - (1 + 2))\n" |
| "#endif\n"; |
| |
| EXPECT_CALL(mDiagnostics, |
| print(pp::Diagnostics::PP_DIVISION_BY_ZERO, pp::SourceLocation(0, 1), "1 / 0")); |
| |
| preprocess(str); |
| } |
| |
| TEST_F(IfTest, ModuloByZero) |
| { |
| const char *str = |
| "#if 1 % (3 - (1 + 2))\n" |
| "#endif\n"; |
| |
| EXPECT_CALL(mDiagnostics, |
| print(pp::Diagnostics::PP_DIVISION_BY_ZERO, pp::SourceLocation(0, 1), "1 % 0")); |
| |
| preprocess(str); |
| } |
| |
| TEST_F(IfTest, DecIntegerOverflow) |
| { |
| const char *str = |
| "#if 4294967296\n" |
| "#endif\n"; |
| |
| EXPECT_CALL(mDiagnostics, print(pp::Diagnostics::PP_INTEGER_OVERFLOW, pp::SourceLocation(0, 1), |
| "4294967296")); |
| |
| preprocess(str); |
| } |
| |
| TEST_F(IfTest, OctIntegerOverflow) |
| { |
| const char *str = |
| "#if 077777777777\n" |
| "#endif\n"; |
| |
| EXPECT_CALL(mDiagnostics, print(pp::Diagnostics::PP_INTEGER_OVERFLOW, pp::SourceLocation(0, 1), |
| "077777777777")); |
| |
| preprocess(str); |
| } |
| |
| TEST_F(IfTest, HexIntegerOverflow) |
| { |
| const char *str = |
| "#if 0xfffffffff\n" |
| "#endif\n"; |
| |
| EXPECT_CALL(mDiagnostics, print(pp::Diagnostics::PP_INTEGER_OVERFLOW, pp::SourceLocation(0, 1), |
| "0xfffffffff")); |
| |
| preprocess(str); |
| } |
| |
| TEST_F(IfTest, UndefinedMacro) |
| { |
| const char *str = |
| "#if UNDEFINED\n" |
| "#endif\n"; |
| |
| EXPECT_CALL(mDiagnostics, print(pp::Diagnostics::PP_CONDITIONAL_UNEXPECTED_TOKEN, |
| pp::SourceLocation(0, 1), "UNDEFINED")); |
| |
| preprocess(str); |
| } |
| |
| TEST_F(IfTest, InvalidExpressionIgnoredForExcludedElif) |
| { |
| const char *str = |
| "#if 1\n" |
| "pass\n" |
| "#elif UNDEFINED\n" |
| "fail\n" |
| "#endif\n"; |
| const char *expected = |
| "\n" |
| "pass\n" |
| "\n" |
| "\n" |
| "\n"; |
| |
| // No error or warning. |
| using testing::_; |
| EXPECT_CALL(mDiagnostics, print(_, _, _)).Times(0); |
| |
| preprocess(str, expected); |
| } |
| |
| TEST_F(IfTest, ElseWithoutIf) |
| { |
| const char *str = "#else\n"; |
| |
| EXPECT_CALL(mDiagnostics, print(pp::Diagnostics::PP_CONDITIONAL_ELSE_WITHOUT_IF, |
| pp::SourceLocation(0, 1), "else")); |
| |
| preprocess(str); |
| } |
| |
| TEST_F(IfTest, ElifWithoutIf) |
| { |
| const char *str = "#elif 1\n"; |
| |
| EXPECT_CALL(mDiagnostics, print(pp::Diagnostics::PP_CONDITIONAL_ELIF_WITHOUT_IF, |
| pp::SourceLocation(0, 1), "elif")); |
| |
| preprocess(str); |
| } |
| |
| TEST_F(IfTest, EndifWithoutIf) |
| { |
| const char *str = "#endif\n"; |
| |
| EXPECT_CALL(mDiagnostics, print(pp::Diagnostics::PP_CONDITIONAL_ENDIF_WITHOUT_IF, |
| pp::SourceLocation(0, 1), "endif")); |
| |
| preprocess(str); |
| } |
| |
| TEST_F(IfTest, ElseAfterElse) |
| { |
| const char *str = |
| "#if 1\n" |
| "#else\n" |
| "#else\n" |
| "#endif\n"; |
| |
| EXPECT_CALL(mDiagnostics, print(pp::Diagnostics::PP_CONDITIONAL_ELSE_AFTER_ELSE, |
| pp::SourceLocation(0, 3), "else")); |
| |
| preprocess(str); |
| } |
| |
| TEST_F(IfTest, ElifAfterElse) |
| { |
| const char *str = |
| "#if 1\n" |
| "#else\n" |
| "#elif 0\n" |
| "#endif\n"; |
| |
| EXPECT_CALL(mDiagnostics, print(pp::Diagnostics::PP_CONDITIONAL_ELIF_AFTER_ELSE, |
| pp::SourceLocation(0, 3), "elif")); |
| |
| preprocess(str); |
| } |
| |
| TEST_F(IfTest, UnterminatedIf) |
| { |
| const char *str = "#if 1\n"; |
| |
| EXPECT_CALL(mDiagnostics, print(pp::Diagnostics::PP_CONDITIONAL_UNTERMINATED, |
| pp::SourceLocation(0, 1), "if")); |
| |
| preprocess(str); |
| } |
| |
| TEST_F(IfTest, UnterminatedIfdef) |
| { |
| const char *str = "#ifdef foo\n"; |
| |
| EXPECT_CALL(mDiagnostics, print(pp::Diagnostics::PP_CONDITIONAL_UNTERMINATED, |
| pp::SourceLocation(0, 1), "ifdef")); |
| |
| preprocess(str); |
| } |
| |
| // The preprocessor only allows one expression to follow an #if directive. |
| // Supplying two integer expressions should be an error. |
| TEST_F(IfTest, ExtraIntExpression) |
| { |
| const char *str = |
| "#if 1 1\n" |
| "#endif\n"; |
| |
| EXPECT_CALL(mDiagnostics, print(pp::Diagnostics::PP_CONDITIONAL_UNEXPECTED_TOKEN, |
| pp::SourceLocation(0, 1), "1")); |
| |
| preprocess(str); |
| } |
| |
| // The preprocessor only allows one expression to follow an #if directive. |
| // Supplying two expressions where one uses a preprocessor define should be an error. |
| TEST_F(IfTest, ExtraIdentifierExpression) |
| { |
| const char *str = |
| "#define one 1\n" |
| "#if 1 one\n" |
| "#endif\n"; |
| |
| EXPECT_CALL(mDiagnostics, print(pp::Diagnostics::PP_CONDITIONAL_UNEXPECTED_TOKEN, |
| pp::SourceLocation(0, 2), "1")); |
| |
| preprocess(str); |
| } |
| |
| // Divide by zero that's not evaluated because of short-circuiting should not cause an error. |
| TEST_F(IfTest, ShortCircuitedDivideByZero) |
| { |
| const char *str = |
| "#if 1 || (2 / 0)\n" |
| "pass\n" |
| "#endif\n"; |
| const char *expected = |
| "\n" |
| "pass\n" |
| "\n"; |
| |
| preprocess(str, expected); |
| } |
| |
| // Undefined identifier that's not evaluated because of short-circuiting should not cause an error. |
| TEST_F(IfTest, ShortCircuitedUndefined) |
| { |
| const char *str = |
| "#if 1 || UNDEFINED\n" |
| "pass\n" |
| "#endif\n"; |
| const char *expected = |
| "\n" |
| "pass\n" |
| "\n"; |
| |
| preprocess(str, expected); |
| } |
| |
| // Defined operator produced by macro expansion has undefined behavior according to C++ spec, |
| // which the GLSL spec references (see C++14 draft spec section 16.1.4), but this behavior is |
| // needed for passing dEQP tests, which enforce stricter compatibility between implementations. |
| TEST_F(IfTest, DefinedOperatorValidAfterMacroExpansion) |
| { |
| const char *str = |
| "#define foo defined\n" |
| "#if !foo bar\n" |
| "pass\n" |
| "#endif\n"; |
| |
| preprocess(str, "\n\npass\n\n"); |
| } |
| |
| // Validate the defined operator is evaluated when the macro is called, not when defined. |
| TEST_F(IfTest, DefinedOperatorValidWhenUsed) |
| { |
| constexpr char str[] = R"(#define BBB 1 |
| #define AAA defined(BBB) |
| #undef BBB |
| |
| #if !AAA |
| pass |
| #endif |
| )"; |
| |
| preprocess(str, "\n\n\n\n\npass\n\n"); |
| } |
| |
| // Validate the defined operator is evaluated when the macro is called, not when defined. |
| TEST_F(IfTest, DefinedOperatorAfterMacro) |
| { |
| constexpr char str[] = R"(#define AAA defined(BBB) |
| #define BBB 1 |
| |
| #if AAA |
| pass |
| #endif |
| )"; |
| |
| preprocess(str, "\n\n\n\npass\n\n"); |
| } |
| |
| // Test generating "defined" by concatenation when a macro is called. This is not allowed. |
| TEST_F(IfTest, DefinedInMacroConcatenationNotAllowed) |
| { |
| constexpr char str[] = R"(#define BBB 1 |
| #define AAA(defi, ned) defi ## ned(BBB) |
| |
| #if !AAA(defi, ned) |
| pass |
| #endif |
| )"; |
| |
| EXPECT_CALL(mDiagnostics, print(pp::Diagnostics::PP_CONDITIONAL_UNEXPECTED_TOKEN, |
| pp::SourceLocation(0, 4), "defi")); |
| EXPECT_CALL(mDiagnostics, print(pp::Diagnostics::PP_CONDITIONAL_UNEXPECTED_TOKEN, |
| pp::SourceLocation(0, 4), "#")); |
| |
| preprocess(str); |
| } |
| |
| // Test using defined in a macro parameter name. This is not allowed. |
| TEST_F(IfTest, DefinedAsParameterNameNotAllowed) |
| { |
| constexpr char str[] = R"(#define BBB 1 |
| #define AAA(defined) defined(BBB) |
| |
| #if AAA(defined) |
| pass |
| #endif |
| )"; |
| |
| EXPECT_CALL(mDiagnostics, |
| print(pp::Diagnostics::PP_UNEXPECTED_TOKEN, pp::SourceLocation(0, 0), "")); |
| |
| preprocess(str); |
| } |
| |
| // This behavour is disabled in WebGL. |
| TEST_F(IfTest, DefinedOperatorInvalidAfterMacroExpansionInWebGL) |
| { |
| const char *str = |
| "#define foo defined\n" |
| "#if !foo bar\n" |
| "pass\n" |
| "#endif\n"; |
| |
| EXPECT_CALL(mDiagnostics, print(pp::Diagnostics::PP_CONDITIONAL_UNEXPECTED_TOKEN, |
| pp::SourceLocation(0, 2), "defined")); |
| EXPECT_CALL(mDiagnostics, print(pp::Diagnostics::PP_CONDITIONAL_UNEXPECTED_TOKEN, |
| pp::SourceLocation(0, 2), "bar")); |
| |
| preprocess(str, pp::PreprocessorSettings(SH_WEBGL_SPEC)); |
| } |
| |
| // Defined operator produced by macro expansion has undefined behavior according to C++ spec, |
| // which the GLSL spec references (see C++14 draft spec section 16.1.4). Some edge case |
| // behaviours with defined are not portable between implementations and thus are not required |
| // to pass dEQP Tests. |
| TEST_F(IfTest, UnterminatedDefinedInMacro) |
| { |
| const char *str = |
| "#define foo defined(\n" |
| "#if foo\n" |
| "#endif\n"; |
| |
| EXPECT_CALL(mDiagnostics, |
| print(pp::Diagnostics::PP_UNEXPECTED_TOKEN, pp::SourceLocation(0, 2), "\n")); |
| EXPECT_CALL(mDiagnostics, print(pp::Diagnostics::PP_INVALID_EXPRESSION, |
| pp::SourceLocation(0, 2), "syntax error")); |
| |
| preprocess(str); |
| } |
| |
| // Defined operator produced by macro expansion has undefined behavior according to C++ spec, |
| // which the GLSL spec references (see C++14 draft spec section 16.1.4). Some edge case |
| // behaviours with defined are not portable between implementations and thus are not required |
| // to pass dEQP Tests. |
| TEST_F(IfTest, UnterminatedDefinedInMacro2) |
| { |
| const char *str = |
| "#define foo defined(bar\n" |
| "#if foo\n" |
| "#endif\n"; |
| |
| EXPECT_CALL(mDiagnostics, |
| print(pp::Diagnostics::PP_UNEXPECTED_TOKEN, pp::SourceLocation(0, 2), "\n")); |
| EXPECT_CALL(mDiagnostics, print(pp::Diagnostics::PP_INVALID_EXPRESSION, |
| pp::SourceLocation(0, 2), "syntax error")); |
| |
| preprocess(str); |
| } |
| |
| // Undefined shift: negative shift offset. |
| TEST_F(IfTest, BitShiftLeftOperatorNegativeOffset) |
| { |
| const char *str = |
| "#if 2 << -1 == 1\n" |
| "foo\n" |
| "#endif\n"; |
| |
| EXPECT_CALL(mDiagnostics, |
| print(pp::Diagnostics::PP_UNDEFINED_SHIFT, pp::SourceLocation(0, 1), "2 << -1")); |
| |
| preprocess(str); |
| } |
| |
| // Undefined shift: shift offset is out of range. |
| TEST_F(IfTest, BitShiftLeftOperatorOffset32) |
| { |
| const char *str = |
| "#if 2 << 32 == 1\n" |
| "foo\n" |
| "#endif\n"; |
| |
| EXPECT_CALL(mDiagnostics, |
| print(pp::Diagnostics::PP_UNDEFINED_SHIFT, pp::SourceLocation(0, 1), "2 << 32")); |
| |
| preprocess(str); |
| } |
| |
| // Left hand side of shift is negative. |
| TEST_F(IfTest, BitShiftLeftOperatorNegativeLHS) |
| { |
| const char *str = |
| "#if (-2) << 1 == -4\n" |
| "pass\n" |
| "#endif\n"; |
| const char *expected = |
| "\n" |
| "pass\n" |
| "\n"; |
| |
| preprocess(str, expected); |
| } |
| |
| // Left shift overflows. Note that the intended result is not explicitly specified, but we assume it |
| // to do the same operation on the 2's complement bit representation as unsigned shift in C++. |
| TEST_F(IfTest, BitShiftLeftOverflow) |
| { |
| const char *str = |
| "#if (0x10000 + 0x1) << 28 == 0x10000000\n" |
| "pass\n" |
| "#endif\n"; |
| const char *expected = |
| "\n" |
| "pass\n" |
| "\n"; |
| |
| preprocess(str, expected); |
| } |
| |
| // Left shift of a negative number overflows. Note that the intended result is not explicitly |
| // specified, but we assume it to do the same operation on the 2's complement bit representation as |
| // unsigned shift in C++. |
| TEST_F(IfTest, BitShiftLeftNegativeOverflow) |
| { |
| // The bit representation of -5 is 11111111 11111111 11111111 11111011. |
| // Shifting by 30 leaves: 11000000 00000000 00000000 00000000. |
| const char *str = |
| "#if (-5) << 30 == -1073741824\n" |
| "pass\n" |
| "#endif\n"; |
| const char *expected = |
| "\n" |
| "pass\n" |
| "\n"; |
| |
| preprocess(str, expected); |
| } |
| |
| // Undefined shift: shift offset is out of range. |
| TEST_F(IfTest, BitShiftRightOperatorNegativeOffset) |
| { |
| const char *str = |
| "#if 2 >> -1 == 4\n" |
| "foo\n" |
| "#endif\n"; |
| |
| EXPECT_CALL(mDiagnostics, |
| print(pp::Diagnostics::PP_UNDEFINED_SHIFT, pp::SourceLocation(0, 1), "2 >> -1")); |
| |
| preprocess(str); |
| } |
| |
| // Undefined shift: shift offset is out of range. |
| TEST_F(IfTest, BitShiftRightOperatorOffset32) |
| { |
| const char *str = |
| "#if 2 >> 32 == 0\n" |
| "foo\n" |
| "#endif\n"; |
| |
| EXPECT_CALL(mDiagnostics, |
| print(pp::Diagnostics::PP_UNDEFINED_SHIFT, pp::SourceLocation(0, 1), "2 >> 32")); |
| |
| preprocess(str); |
| } |
| |
| // Left hand side of shift is negative. |
| TEST_F(IfTest, BitShiftRightOperatorNegativeLHS) |
| { |
| const char *str = |
| "#if (-2) >> 1 == 0x7fffffff\n" |
| "pass\n" |
| "#endif\n"; |
| const char *expected = |
| "\n" |
| "pass\n" |
| "\n"; |
| |
| preprocess(str, expected); |
| } |
| |
| } // namespace angle |
