1 // Copyright 2010 the V8 project authors. All rights reserved. 2 // Redistribution and use in source and binary forms, with or without 3 // modification, are permitted provided that the following conditions are 4 // met: 5 // 6 // * Redistributions of source code must retain the above copyright 7 // notice, this list of conditions and the following disclaimer. 8 // * Redistributions in binary form must reproduce the above 9 // copyright notice, this list of conditions and the following 10 // disclaimer in the documentation and/or other materials provided 11 // with the distribution. 12 // * Neither the name of Google Inc. nor the names of its 13 // contributors may be used to endorse or promote products derived 14 // from this software without specific prior written permission. 15 // 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 28 29 #include "cctest.h" 30 #include "type-info.h" 31 32 namespace v8 { 33 namespace internal { 34 35 TEST(ThreeBitRepresentation) { 36 // Numeric types and unknown should fit into the short 37 // representation. 38 CHECK(TypeInfo::ExpandedRepresentation( 39 TypeInfo::Unknown().ThreeBitRepresentation()).IsUnknown()); 40 CHECK(TypeInfo::ExpandedRepresentation( 41 TypeInfo::Number().ThreeBitRepresentation()).IsNumber()); 42 CHECK(TypeInfo::ExpandedRepresentation( 43 TypeInfo::Integer32().ThreeBitRepresentation()).IsInteger32()); 44 CHECK(TypeInfo::ExpandedRepresentation( 45 TypeInfo::Smi().ThreeBitRepresentation()).IsSmi()); 46 CHECK(TypeInfo::ExpandedRepresentation( 47 TypeInfo::Double().ThreeBitRepresentation()).IsDouble()); 48 49 // Other types should map to unknown. 50 CHECK(TypeInfo::ExpandedRepresentation( 51 TypeInfo::Primitive().ThreeBitRepresentation()).IsUnknown()); 52 CHECK(TypeInfo::ExpandedRepresentation( 53 TypeInfo::String().ThreeBitRepresentation()).IsUnknown()); 54 } 55 56 } } // namespace v8::internal 57
