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authorQt by Nokia <qt-info@nokia.com>2011-04-27 12:05:43 +0200
committeraxis <qt-info@nokia.com>2011-04-27 12:05:43 +0200
commitc4af45c2914381172e1bd7ee528481edaa2fff1a (patch)
tree01265e109316fda93845e1c96c5e566d870f51d0 /src/3rdparty/javascriptcore/JavaScriptCore/API/JSValueRef.h
downloadqtscript-c4af45c2914381172e1bd7ee528481edaa2fff1a.tar.gz
Initial import from the monolithic Qt.
This is the beginning of revision history for this module. If you want to look at revision history older than this, please refer to the Qt Git wiki for how to use Git history grafting. At the time of writing, this wiki is located here: http://qt.gitorious.org/qt/pages/GitIntroductionWithQt If you have already performed the grafting and you don't see any history beyond this commit, try running "git log" with the "--follow" argument. Branched from the monolithic repo, Qt master branch, at commit 896db169ea224deb96c59ce8af800d019de63f12
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+/*
+ * Copyright (C) 2006 Apple Computer, Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef JSValueRef_h
+#define JSValueRef_h
+
+#include <JavaScriptCore/JSBase.h>
+
+#ifndef __cplusplus
+#include <stdbool.h>
+#endif
+
+/*!
+@enum JSType
+@abstract A constant identifying the type of a JSValue.
+@constant kJSTypeUndefined The unique undefined value.
+@constant kJSTypeNull The unique null value.
+@constant kJSTypeBoolean A primitive boolean value, one of true or false.
+@constant kJSTypeNumber A primitive number value.
+@constant kJSTypeString A primitive string value.
+@constant kJSTypeObject An object value (meaning that this JSValueRef is a JSObjectRef).
+*/
+typedef enum {
+ kJSTypeUndefined,
+ kJSTypeNull,
+ kJSTypeBoolean,
+ kJSTypeNumber,
+ kJSTypeString,
+ kJSTypeObject
+} JSType;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*!
+@function
+@abstract Returns a JavaScript value's type.
+@param ctx The execution context to use.
+@param value The JSValue whose type you want to obtain.
+@result A value of type JSType that identifies value's type.
+*/
+JS_EXPORT JSType JSValueGetType(JSContextRef ctx, JSValueRef value);
+
+/*!
+@function
+@abstract Tests whether a JavaScript value's type is the undefined type.
+@param ctx The execution context to use.
+@param value The JSValue to test.
+@result true if value's type is the undefined type, otherwise false.
+*/
+JS_EXPORT bool JSValueIsUndefined(JSContextRef ctx, JSValueRef value);
+
+/*!
+@function
+@abstract Tests whether a JavaScript value's type is the null type.
+@param ctx The execution context to use.
+@param value The JSValue to test.
+@result true if value's type is the null type, otherwise false.
+*/
+JS_EXPORT bool JSValueIsNull(JSContextRef ctx, JSValueRef value);
+
+/*!
+@function
+@abstract Tests whether a JavaScript value's type is the boolean type.
+@param ctx The execution context to use.
+@param value The JSValue to test.
+@result true if value's type is the boolean type, otherwise false.
+*/
+JS_EXPORT bool JSValueIsBoolean(JSContextRef ctx, JSValueRef value);
+
+/*!
+@function
+@abstract Tests whether a JavaScript value's type is the number type.
+@param ctx The execution context to use.
+@param value The JSValue to test.
+@result true if value's type is the number type, otherwise false.
+*/
+JS_EXPORT bool JSValueIsNumber(JSContextRef ctx, JSValueRef value);
+
+/*!
+@function
+@abstract Tests whether a JavaScript value's type is the string type.
+@param ctx The execution context to use.
+@param value The JSValue to test.
+@result true if value's type is the string type, otherwise false.
+*/
+JS_EXPORT bool JSValueIsString(JSContextRef ctx, JSValueRef value);
+
+/*!
+@function
+@abstract Tests whether a JavaScript value's type is the object type.
+@param ctx The execution context to use.
+@param value The JSValue to test.
+@result true if value's type is the object type, otherwise false.
+*/
+JS_EXPORT bool JSValueIsObject(JSContextRef ctx, JSValueRef value);
+
+/*!
+@function
+@abstract Tests whether a JavaScript value is an object with a given class in its class chain.
+@param ctx The execution context to use.
+@param value The JSValue to test.
+@param jsClass The JSClass to test against.
+@result true if value is an object and has jsClass in its class chain, otherwise false.
+*/
+JS_EXPORT bool JSValueIsObjectOfClass(JSContextRef ctx, JSValueRef value, JSClassRef jsClass);
+
+/* Comparing values */
+
+/*!
+@function
+@abstract Tests whether two JavaScript values are equal, as compared by the JS == operator.
+@param ctx The execution context to use.
+@param a The first value to test.
+@param b The second value to test.
+@param exception A pointer to a JSValueRef in which to store an exception, if any. Pass NULL if you do not care to store an exception.
+@result true if the two values are equal, false if they are not equal or an exception is thrown.
+*/
+JS_EXPORT bool JSValueIsEqual(JSContextRef ctx, JSValueRef a, JSValueRef b, JSValueRef* exception);
+
+/*!
+@function
+@abstract Tests whether two JavaScript values are strict equal, as compared by the JS === operator.
+@param ctx The execution context to use.
+@param a The first value to test.
+@param b The second value to test.
+@result true if the two values are strict equal, otherwise false.
+*/
+JS_EXPORT bool JSValueIsStrictEqual(JSContextRef ctx, JSValueRef a, JSValueRef b);
+
+/*!
+@function
+@abstract Tests whether a JavaScript value is an object constructed by a given constructor, as compared by the JS instanceof operator.
+@param ctx The execution context to use.
+@param value The JSValue to test.
+@param constructor The constructor to test against.
+@param exception A pointer to a JSValueRef in which to store an exception, if any. Pass NULL if you do not care to store an exception.
+@result true if value is an object constructed by constructor, as compared by the JS instanceof operator, otherwise false.
+*/
+JS_EXPORT bool JSValueIsInstanceOfConstructor(JSContextRef ctx, JSValueRef value, JSObjectRef constructor, JSValueRef* exception);
+
+/* Creating values */
+
+/*!
+@function
+@abstract Creates a JavaScript value of the undefined type.
+@param ctx The execution context to use.
+@result The unique undefined value.
+*/
+JS_EXPORT JSValueRef JSValueMakeUndefined(JSContextRef ctx);
+
+/*!
+@function
+@abstract Creates a JavaScript value of the null type.
+@param ctx The execution context to use.
+@result The unique null value.
+*/
+JS_EXPORT JSValueRef JSValueMakeNull(JSContextRef ctx);
+
+/*!
+@function
+@abstract Creates a JavaScript value of the boolean type.
+@param ctx The execution context to use.
+@param boolean The bool to assign to the newly created JSValue.
+@result A JSValue of the boolean type, representing the value of boolean.
+*/
+JS_EXPORT JSValueRef JSValueMakeBoolean(JSContextRef ctx, bool boolean);
+
+/*!
+@function
+@abstract Creates a JavaScript value of the number type.
+@param ctx The execution context to use.
+@param number The double to assign to the newly created JSValue.
+@result A JSValue of the number type, representing the value of number.
+*/
+JS_EXPORT JSValueRef JSValueMakeNumber(JSContextRef ctx, double number);
+
+/*!
+@function
+@abstract Creates a JavaScript value of the string type.
+@param ctx The execution context to use.
+@param string The JSString to assign to the newly created JSValue. The
+ newly created JSValue retains string, and releases it upon garbage collection.
+@result A JSValue of the string type, representing the value of string.
+*/
+JS_EXPORT JSValueRef JSValueMakeString(JSContextRef ctx, JSStringRef string);
+
+/* Converting to primitive values */
+
+/*!
+@function
+@abstract Converts a JavaScript value to boolean and returns the resulting boolean.
+@param ctx The execution context to use.
+@param value The JSValue to convert.
+@result The boolean result of conversion.
+*/
+JS_EXPORT bool JSValueToBoolean(JSContextRef ctx, JSValueRef value);
+
+/*!
+@function
+@abstract Converts a JavaScript value to number and returns the resulting number.
+@param ctx The execution context to use.
+@param value The JSValue to convert.
+@param exception A pointer to a JSValueRef in which to store an exception, if any. Pass NULL if you do not care to store an exception.
+@result The numeric result of conversion, or NaN if an exception is thrown.
+*/
+JS_EXPORT double JSValueToNumber(JSContextRef ctx, JSValueRef value, JSValueRef* exception);
+
+/*!
+@function
+@abstract Converts a JavaScript value to string and copies the result into a JavaScript string.
+@param ctx The execution context to use.
+@param value The JSValue to convert.
+@param exception A pointer to a JSValueRef in which to store an exception, if any. Pass NULL if you do not care to store an exception.
+@result A JSString with the result of conversion, or NULL if an exception is thrown. Ownership follows the Create Rule.
+*/
+JS_EXPORT JSStringRef JSValueToStringCopy(JSContextRef ctx, JSValueRef value, JSValueRef* exception);
+
+/*!
+@function
+@abstract Converts a JavaScript value to object and returns the resulting object.
+@param ctx The execution context to use.
+@param value The JSValue to convert.
+@param exception A pointer to a JSValueRef in which to store an exception, if any. Pass NULL if you do not care to store an exception.
+@result The JSObject result of conversion, or NULL if an exception is thrown.
+*/
+JS_EXPORT JSObjectRef JSValueToObject(JSContextRef ctx, JSValueRef value, JSValueRef* exception);
+
+/* Garbage collection */
+/*!
+@function
+@abstract Protects a JavaScript value from garbage collection.
+@param ctx The execution context to use.
+@param value The JSValue to protect.
+@discussion Use this method when you want to store a JSValue in a global or on the heap, where the garbage collector will not be able to discover your reference to it.
+
+A value may be protected multiple times and must be unprotected an equal number of times before becoming eligible for garbage collection.
+*/
+JS_EXPORT void JSValueProtect(JSContextRef ctx, JSValueRef value);
+
+/*!
+@function
+@abstract Unprotects a JavaScript value from garbage collection.
+@param ctx The execution context to use.
+@param value The JSValue to unprotect.
+@discussion A value may be protected multiple times and must be unprotected an
+ equal number of times before becoming eligible for garbage collection.
+*/
+JS_EXPORT void JSValueUnprotect(JSContextRef ctx, JSValueRef value);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* JSValueRef_h */