1 /* 2 * Copyright 2011, The Android Open Source Project 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef JavaValueV8_h 27 #define JavaValueV8_h 28 29 #if ENABLE(JAVA_BRIDGE) 30 31 #include "JavaType.h" 32 33 #include <wtf/text/WTFString.h> 34 35 namespace JSC { 36 37 namespace Bindings { 38 39 class JavaInstance; 40 41 // A variant used to represent a Java value, almost identical to the JNI 42 // jvalue type. It exists because the logic to convert between JavaScript 43 // objects (as JavaNPObject or JSValue) and Java objects should not depend upon 44 // JNI, to allow ports to provide a JavaInstance object etc which does not use 45 // JNI. This means that the 'object' field of this variant uses JavaInstance, 46 // not jobject. 47 // 48 // Note that this class is independent of the JavaScript engine, but is 49 // currently used only with V8. 50 // See https://bugs.webkit.org/show_bug.cgi?id=57023. 51 struct JavaValue { JavaValueJavaValue52 JavaValue() : m_type(JavaTypeInvalid) {} 53 54 JavaType m_type; 55 // We don't use a union because we want to be able to ref-count some of the 56 // values. This requires types with non-trivial constructors. 57 RefPtr<JavaInstance> m_objectValue; 58 bool m_booleanValue; 59 signed char m_byteValue; 60 unsigned short m_charValue; 61 short m_shortValue; 62 int m_intValue; 63 long long m_longValue; 64 float m_floatValue; 65 double m_doubleValue; 66 String m_stringValue; 67 }; 68 69 } // namespace Bindings 70 71 } // namespace JSC 72 73 #endif // ENABLE(JAVA_BRIDGE) 74 75 #endif // JavaValueV8_h 76