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LibJS: Add Math.random() :^)

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This commit is contained in:
Andreas Kling 2020-03-21 17:52:12 +01:00
parent c4c549625f
commit 8b18674229
Notes: sideshowbarker 2024-07-19 08:12:05 +09:00 
Author: https://github.com/awesomekling
Commit: https://github.com/SerenityOS/serenity/commit/8b186742293
4 changed files with 89 additions and 0 deletions
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1
Libraries/LibJS/Makefile
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@ -12,6 +12,7 @@ OBJS = \
Runtime/ConsoleObject.o \
Runtime/Function.o \
Runtime/GlobalObject.o \
Runtime/MathObject.o \
Runtime/NativeFunction.o \
Runtime/NativeProperty.o \
Runtime/Object.o \

2
Libraries/LibJS/Runtime/GlobalObject.cpp
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@ -4,6 +4,7 @@
#include <LibJS/Interpreter.h>
#include <LibJS/Runtime/ConsoleObject.h>
#include <LibJS/Runtime/GlobalObject.h>
#include <LibJS/Runtime/MathObject.h>
#include <LibJS/Runtime/NativeFunction.h>
#include <LibJS/Runtime/Value.h>
@ -17,6 +18,7 @@ GlobalObject::GlobalObject()
this_object->heap().collect_garbage();
return js_undefined();
});
put("Math", heap().allocate<MathObject>());
}
GlobalObject::~GlobalObject()

44
Libraries/LibJS/Runtime/MathObject.cpp Normal file
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@ -0,0 +1,44 @@
/*
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
* 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 THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 THE COPYRIGHT HOLDER 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.
*/
#include <AK/Function.h>
#include <LibJS/Runtime/MathObject.h>
namespace JS {
MathObject::MathObject()
{
put_native_function("random", [](Object*, const Vector<Value>&) {
double r = (double)arc4random() / (double)UINT32_MAX;
return Value(r);
});
}
MathObject::~MathObject()
{
}
}

42
Libraries/LibJS/Runtime/MathObject.h Normal file
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@ -0,0 +1,42 @@
/*
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
* 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 THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 THE COPYRIGHT HOLDER 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.
*/
#pragma once
#include <LibJS/Runtime/Object.h>
namespace JS {
class MathObject final : public Object {
public:
MathObject();
virtual ~MathObject() override;
private:
virtual const char* class_name() const override { return "MathObject"; }
};
}