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ladybird/Libraries/LibJS/Runtime/Error.cpp

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LibJS: Implement basic exception throwing You can now throw exceptions by calling Interpreter::throw_exception(). Anyone who calls ASTNode::execute() needs to check afterwards if the Interpreter now has an exception(), and if so, stop what they're doing and simply return. When catching an exception, we'll first execute the CatchClause node if present. After that, we'll execute the finalizer block if present. This is unlikely to be completely correct, but it's a start! :^)
2020-03-24 13:37:39 +00:00
/*
* 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 <LibJS/Runtime/Error.h>
LibJS: Pass prototype to Error constructors
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#include <LibJS/Runtime/GlobalObject.h>
LibJS: Implement basic exception throwing You can now throw exceptions by calling Interpreter::throw_exception(). Anyone who calls ASTNode::execute() needs to check afterwards if the Interpreter now has an exception(), and if so, stop what they're doing and simply return. When catching an exception, we'll first execute the CatchClause node if present. After that, we'll execute the finalizer block if present. This is unlikely to be completely correct, but it's a start! :^)
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namespace JS {
LibJS: Pass prototype to Error constructors
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Error* Error::create(GlobalObject& global_object, const FlyString& name, const String& message)
{
LibJS: Remove a bunch of unnecessary uses of Cell::interpreter() We'll want to get rid of all uses of this, to free up the engine from the old assumption that there's always an Interpreter available.
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return global_object.heap().allocate<Error>(global_object, name, message, *global_object.error_prototype());
LibJS: Pass prototype to Error constructors
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}
Error::Error(const FlyString& name, const String& message, Object& prototype)
LibJS: Clarify Object (base class) construction somewhat Divide the Object constructor into three variants: - The regular one (takes an Object& prototype) - One for use by GlobalObject - One for use by objects without a prototype (e.g ObjectPrototype)
2020-06-23 15:21:53 +00:00
: Object(prototype)
LibJS+LibWeb: Pass prototype to Object constructor Everyone who constructs an Object must now pass a prototype object when applicable. There's still a fair amount of code that passes something fetched from the Interpreter, but this brings us closer to being able to detach prototypes from Interpreter eventually.
2020-04-18 08:27:57 +00:00
, m_name(name)
LibJS: Implement basic exception throwing You can now throw exceptions by calling Interpreter::throw_exception(). Anyone who calls ASTNode::execute() needs to check afterwards if the Interpreter now has an exception(), and if so, stop what they're doing and simply return. When catching an exception, we'll first execute the CatchClause node if present. After that, we'll execute the finalizer block if present. This is unlikely to be completely correct, but it's a start! :^)
2020-03-24 13:37:39 +00:00
, m_message(message)
{
}
Error::~Error()
{
}
LibJS: Move native objects towards two-pass construction To make sure that everything is set up correctly in objects before we start adding properties to them, we split cell allocation into 3 steps: 1. Allocate a cell of appropriate size from the Heap 2. Call the C++ constructor on the cell 3. Call initialize() on the constructed object The job of initialize() is to define all the initial properties. Doing it in a second pass guarantees that the Object has a valid Shape and can find its own GlobalObject.
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#define __JS_ENUMERATE(ClassName, snake_name, PrototypeName, ConstructorName) \
ClassName* ClassName::create(GlobalObject& global_object, const String& message) \
{ \
return global_object.heap().allocate<ClassName>(global_object, message, *global_object.snake_name##_prototype()); \
} \
ClassName::ClassName(const String& message, Object& prototype) \
LibJS: Cache commonly used FlyStrings in the VM Roughly 7% of test-js runtime was spent creating FlyStrings from string literals. This patch frontloads that work and caches all the commonly used names in LibJS on a CommonPropertyNames struct that hangs off VM.
2020-10-13 21:49:19 +00:00
: Error(vm().names.ClassName, message, prototype) \
LibJS: Move native objects towards two-pass construction To make sure that everything is set up correctly in objects before we start adding properties to them, we split cell allocation into 3 steps: 1. Allocate a cell of appropriate size from the Heap 2. Call the C++ constructor on the cell 3. Call initialize() on the constructed object The job of initialize() is to define all the initial properties. Doing it in a second pass guarantees that the Object has a valid Shape and can find its own GlobalObject.
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{ \
} \
Meta+LibHTTP through LibWeb: Make clang-format-10 clean
2020-09-18 07:49:51 +00:00
ClassName::~ClassName() { }
LibJS: Add all the Error subclasses This patch adds instance, constructor and prototype classes for: - EvalError - InternalError - RangeError - ReferenceError - SyntaxError - TypeError - URIError Enumerator macros are used to reduce the amount of typing. :^)
2020-04-10 10:42:33 +00:00
JS_ENUMERATE_ERROR_SUBCLASSES
LibJS: Use enumerator macros for boilerplate code around native types
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#undef __JS_ENUMERATE
LibJS: Add all the Error subclasses This patch adds instance, constructor and prototype classes for: - EvalError - InternalError - RangeError - ReferenceError - SyntaxError - TypeError - URIError Enumerator macros are used to reduce the amount of typing. :^)
2020-04-10 10:42:33 +00:00
LibJS: Implement basic exception throwing You can now throw exceptions by calling Interpreter::throw_exception(). Anyone who calls ASTNode::execute() needs to check afterwards if the Interpreter now has an exception(), and if so, stop what they're doing and simply return. When catching an exception, we'll first execute the CatchClause node if present. After that, we'll execute the finalizer block if present. This is unlikely to be completely correct, but it's a start! :^)
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}
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