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serenity/Userland/Libraries/LibJS
Linus Groh da177c6517 LibJS: Make Errors fully spec compliant
The previous handling of the name and message properties specifically
was breaking websites that created their own error types and relied on
the error prototype working correctly - not assuming an JS::Error this
object, that is.

The way it works now, and it is supposed to work, is:

- Error.prototype.name and Error.prototype.message just have initial
  string values and are no longer getters/setters
- When constructing an error with a message, we create a regular
  property on the newly created object, so a lookup of the message
  property will either get it from the object directly or go though the
  prototype chain
- Internal m_name/m_message properties are no longer needed and removed

This makes printing errors slightly more complicated, as we can no
longer rely on the (safe) internal properties, and cannot trust a
property lookup either - get_without_side_effects() is used to solve
this, it's not perfect but something we can revisit later.

I did some refactoring along the way, there was some really old stuff in
there - accessing vm.call_frame().arguments[0] is not something we (have
to) do anymore :^)

Fixes #6245.
2021-04-12 09:38:57 +02:00
..
Heap AK+Everywhere: Make StdLibExtras templates less wrapper-y 2021-04-10 21:01:31 +02:00
Runtime LibJS: Make Errors fully spec compliant 2021-04-12 09:38:57 +02:00
Tests LibJS: Make Errors fully spec compliant 2021-04-12 09:38:57 +02:00
AST.cpp LibJS: Implicitly break for..in loop if the RHS result is nullish 2021-04-10 21:00:04 +02:00
AST.h Only apply auto-naming of function expressions based on syntax 2021-03-22 12:44:07 +01:00
CMakeLists.txt LibJS: Add initial support for Promises 2021-04-02 10:47:40 +02:00
Console.cpp LibJS: Put console dbgln() logging behind #ifdef __serenity__ 2021-03-02 08:36:34 +01:00
Console.h LibJS: Print console.{debug,error,info,log,warn} to system debug log 2021-02-21 21:32:16 +01:00
Forward.h LibJS: Add initial support for Promises 2021-04-02 10:47:40 +02:00
Interpreter.cpp LibJS: Add initial support for Promises 2021-04-02 10:47:40 +02:00
Interpreter.h LibJS: Always inline some tiny Interpreter getters 2021-03-21 21:39:39 +01:00
Lexer.cpp LibJS: Keep track of file names, lines and columns inside the AST 2021-03-01 11:14:36 +01:00
Lexer.h LibJS: Keep track of file names, lines and columns inside the AST 2021-03-01 11:14:36 +01:00
MarkupGenerator.cpp LibJS: Make Errors fully spec compliant 2021-04-12 09:38:57 +02:00
MarkupGenerator.h LibJS: Make Errors fully spec compliant 2021-04-12 09:38:57 +02:00
Parser.cpp Only apply auto-naming of function expressions based on syntax 2021-03-22 12:44:07 +01:00
Parser.h LibJS: Keep track of file names, lines and columns inside the AST 2021-03-01 11:14:36 +01:00
SourceRange.h LibJS: Keep track of file names, lines and columns inside the AST 2021-03-01 11:14:36 +01:00
SyntaxHighlighter.cpp LibSyntax: Make rehighlight() take Gfx::Palette as by const-reference 2021-02-11 23:52:39 +01:00
SyntaxHighlighter.h LibSyntax: Make rehighlight() take Gfx::Palette as by const-reference 2021-02-11 23:52:39 +01:00
Token.cpp Everywhere: Rename ASSERT => VERIFY 2021-02-23 20:56:54 +01:00
Token.h LibJS: Keep track of file names, lines and columns inside the AST 2021-03-01 11:14:36 +01:00