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ladybird/Userland/Libraries/LibJS/Runtime/ConsoleObject.h

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LibJS: Replace the global print() function with console.log() :^)
2020-03-16 14:58:20 +01:00
/*
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
*
Everything: Move to SPDX license identifiers in all files. SPDX License Identifiers are a more compact / standardized way of representing file license information. See: https://spdx.dev/resources/use/#identifiers This was done with the `ambr` search and replace tool. ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *
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* SPDX-License-Identifier: BSD-2-Clause
LibJS: Replace the global print() function with console.log() :^)
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*/
#pragma once
#include <LibJS/Runtime/Object.h>
namespace JS {
class ConsoleObject final : public Object {
LibJS+LibWeb: Add JS::Object::inherits(class_name) To allow implementing the DOM class hierarchy in JS bindings, this patch adds an inherits() function that can be used to ask an Object if it inherits from a specific C++ class (by name). The necessary overrides are baked into each Object subclass by the new JS_OBJECT macro, which works similarly to C_OBJECT in LibCore. Thanks to @Dexesttp for suggesting this approach. :^)
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JS_OBJECT(ConsoleObject, Object);
LibJS: Segregate GC-allocated objects by type This patch adds two macros to declare per-type allocators: - JS_DECLARE_ALLOCATOR(TypeName) - JS_DEFINE_ALLOCATOR(TypeName) When used, they add a type-specific CellAllocator that the Heap will delegate allocation requests to. The result of this is that GC objects of the same type always end up within the same HeapBlock, drastically reducing the ability to perform type confusion attacks. It also improves HeapBlock utilization, since each block now has cells sized exactly to the type used within that block. (Previously we only had a handful of block sizes available, and most GC allocations ended up with a large amount of slack in their tails.) There is a small performance hit from this, but I'm sure we can make up for it elsewhere. Note that the old size-based allocators still exist, and we fall back to them for any type that doesn't have its own CellAllocator.
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JS_DECLARE_ALLOCATOR(ConsoleObject);
LibJS+LibWeb: Add JS::Object::inherits(class_name) To allow implementing the DOM class hierarchy in JS bindings, this patch adds an inherits() function that can be used to ask an Object if it inherits from a specific C++ class (by name). The necessary overrides are baked into each Object subclass by the new JS_OBJECT macro, which works similarly to C_OBJECT in LibCore. Thanks to @Dexesttp for suggesting this approach. :^)
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LibJS: Replace the global print() function with console.log() :^)
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public:
LibJS: Make Cell::initialize() return void Stop worrying about tiny OOMs. Work towards #20405
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virtual void initialize(Realm&) override;
Libraries: Use default constructors/destructors in LibJS https://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines#cother-other-default-operation-rules "The compiler is more likely to get the default semantics right and you cannot implement these functions better than the compiler."
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virtual ~ConsoleObject() override = default;
LibJS: Replace the global print() function with console.log() :^)
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LibJS: Move Console ownership from GlobalObject to ConsoleObject GlobalObject is now a regular object with no special properties :^)
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Console& console() { return *m_console; }
LibJS: Replace the global print() function with console.log() :^)
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private:
LibJS: Hide all the constructors! Now that the GC allocator is able to invoke Cell subclass constructors directly via friendship, we no longer need to keep them public. :^)
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explicit ConsoleObject(Realm&);
LibJS: Sort Console methods in spec order Easier to compare to the spec side-by-side when everything is in the same order.
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JS_DECLARE_NATIVE_FUNCTION(assert_);
JS_DECLARE_NATIVE_FUNCTION(clear);
LibJS: Convert ConsoleObject functions to ThrowCompletionOr
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JS_DECLARE_NATIVE_FUNCTION(debug);
JS_DECLARE_NATIVE_FUNCTION(error);
LibJS: Sort Console methods in spec order Easier to compare to the spec side-by-side when everything is in the same order.
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JS_DECLARE_NATIVE_FUNCTION(info);
JS_DECLARE_NATIVE_FUNCTION(log);
LibJS: Convert ConsoleObject functions to ThrowCompletionOr
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JS_DECLARE_NATIVE_FUNCTION(trace);
LibJS: Sort Console methods in spec order Easier to compare to the spec side-by-side when everything is in the same order.
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JS_DECLARE_NATIVE_FUNCTION(warn);
LibJS: Begin implementing console.dir The intent of the spec is that the output of console.dir is interactable within the console. Our Printer implementation currently just prints the provided object as a string, and doesn't check the provided `options` argument. But having console.dir defined prevents exceptions from being thrown on real websites.
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JS_DECLARE_NATIVE_FUNCTION(dir);
LibJS: Convert ConsoleObject functions to ThrowCompletionOr
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JS_DECLARE_NATIVE_FUNCTION(count);
JS_DECLARE_NATIVE_FUNCTION(count_reset);
LibJS+WebContent+Browser+js: Implement console.group() methods This implements: - console.group() - console.groupCollapsed() - console.groupEnd() In the Browser, we use `<details>` for the groups, which is not actually implemented yet, so groups are always open. In the REPL, groups are non-interactive, but still indent any output. This looks weird since the console prompt and return values remain on the far left, but this matches what Node does so it's probably fine. :^) I expect `console.group()` is not used much outside of browsers.
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JS_DECLARE_NATIVE_FUNCTION(group);
JS_DECLARE_NATIVE_FUNCTION(group_collapsed);
JS_DECLARE_NATIVE_FUNCTION(group_end);
LibJS: Implement console.time/timeLog/timeEnd() methods
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JS_DECLARE_NATIVE_FUNCTION(time);
JS_DECLARE_NATIVE_FUNCTION(time_log);
JS_DECLARE_NATIVE_FUNCTION(time_end);
LibJS: Move Console ownership from GlobalObject to ConsoleObject GlobalObject is now a regular object with no special properties :^)
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NonnullOwnPtr<Console> m_console;
LibJS: Replace the global print() function with console.log() :^)
2020-03-16 14:58:20 +01:00
};
}
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