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24104 commits 1 branch 0 tags 227 MiB
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1022 commits

Author SHA1 Message Date
Linus Groh
9b35231453 LibJS: Implement Proxy.revocable() 2021-06-08 23:53:13 +02:00
Linus Groh
e39dd65cf0 LibJS: Remove Proxy() argument count check 
Let's just treat missing arguments as undefined and throw with
'target/handler must be object' - this is more JavaScript-y.
 2021-06-08 23:53:13 +02:00
Gunnar Beutner
5ff85abe8c LibJS: Make sure loop results are initialized 
This ensures that "while", do...while, "for" expressions have a
properly initialized result value even if the user terminated
the loop body via break or the loop body wasn't executed at all.
 2021-06-08 21:49:52 +01:00
Marcin Gasperowicz
624ceec04f LibJS: Make SwitchStatement::execute() return undefined for empty blocks 
Previously SwitchStatement::execute() would return <empty> when hitting
break, continue or empty consequent block. This was not in line with
the standard.
 2021-06-08 21:41:46 +01:00
Andreas Kling
949ceedaed LibJS: Remove the seal/unseal of Bytecode::Block again 
This partially reverts c6ce7c9326.
The munmap part of that change was good, but we can't seal the blocks
since that breaks NewString and other ops that have String members.
 2021-06-08 21:39:50 +02:00
Matthew Olsson
9bed2e4f4a LibJS: Introduce an accumulator register to Bytecode::Interpreter 
This commit introduces the concept of an accumulator register to
LibJS's bytecode interpreter. The accumulator register is always
register 0, and most simple instructions use it for reading and
writing.

Not only does this slim down the AST, but it also simplifies a lot of
the code. For example, the generate_bytecode methods no longer need
to return an Optional<Register>, as any opcode which has a "return"
value will always put it into the accumulator.

This also renames the old Op::Load to Op::LoadImmediate, and uses
Op::Load to load from a register into the accumulator. There is
also an Op::Store to put the value in the accumulator into another
register.
 2021-06-08 21:00:12 +02:00
Linus Groh
6c256bb400 LibJS: Add @@toStringTag to Reflect 2021-06-08 19:13:14 +01:00
Linus Groh
b377777208 LibJS: Add @@toStringTag to Promise.prototype 2021-06-08 19:13:14 +01:00
Linus Groh
ed64a69fb2 LibJS: Replace two instances of 'global_object.vm()' with just 'vm' 2021-06-08 19:13:14 +01:00
Gunnar Beutner
75a12bc2b7 LibJS: Generate bytecode for template literals 2021-06-08 19:47:32 +02:00
Leon Albrecht
c6ce7c9326
LibJS: Seal Bytecode Blocks and munmap them (#7919) 2021-06-08 17:21:48 +02:00
Idan Horowitz
064ed8279e LibJS: Support deleting local variables with operator delete 
To make this cleaner i also moved the logic into Reference::delete_.
 2021-06-08 15:31:46 +01:00
Idan Horowitz
af58779def LibJS: Return undefined from a with statement if no value was generated 
Co-authored-by: Linus Groh <mail@linusgroh.de>
 2021-06-08 15:31:46 +01:00
Idan Horowitz
98897ff676 LibJS: Return the last value from a with statement 2021-06-08 15:31:46 +01:00
Linus Groh
68ce69db88 LibJS: Add for loop bytecode generation 2021-06-08 11:59:32 +02:00
Gunnar Beutner
50ece3dd1b LibJS: Implement bytecode generation for BigInts 2021-06-08 10:57:28 +01:00
Gunnar Beutner
0975e08285 LibJS: Make if yield undefined for the else branch if it is missing 2021-06-08 11:38:48 +02:00
Gunnar Beutner
d9989fd259 LibJS: Remove redundant jump for IfStatements 2021-06-08 11:38:48 +02:00
Gunnar Beutner
ef83872f62 LibJS: Make JumpIf{True,False,Nullish} inherit from Jump 
This saves a few lines in LogicalExpression::generate_bytecode.
 2021-06-08 11:38:48 +02:00
Luke
1dc31842cb LibJS: Add sequence expression bytecode generation 2021-06-08 11:20:10 +02:00
Luke
de3ee701ce LibJS: Add conditional expression bytecode generation 
Or, by its more common name, the ternary operator :^)
 2021-06-08 09:53:56 +01:00
Gunnar Beutner
6da587b59b LibJS: Implement bytecode ops for logical expressions 2021-06-08 10:42:45 +02:00
Gunnar Beutner
216d27d4c1 LibJS: Convert values to boolean for JumpIfTrue/JumpIfFalse 
Value::as_bool() might fail if the underlying value isn't already a
boolean value.
 2021-06-08 10:42:45 +02:00
Idan Horowitz
aefb7995f1 LibJS: Add the Symbol.species getter to the appropriate built-ins 2021-06-08 09:09:51 +01:00
Linus Groh
39c3aefe5d LibJS: Use to_property_key() a bunch in ReflectObject 
Yay for correctness. :^)
 2021-06-07 23:11:08 +01:00
Linus Groh
7565bf0590 LibJS: Remove redundant exception checks 2021-06-07 23:09:06 +01:00
Linus Groh
3fdad563e2 LibJS: Never omit setter/getter attributes in accessor descriptor object 
These should not be omitted, an accessor with out getter or setter still
yields an undefined for the attribute in its descriptor object.
 2021-06-07 23:07:13 +01:00
Linus Groh
8c964ef9f8 LibJS: Fix get_own_property_descriptor_object() field name order 
This is defined by the spec: enumerable and configurable come last.
 2021-06-07 23:02:52 +01:00
Linus Groh
4e555fae22 LibJS: Add missing cyclic prototype check to Object.setPrototypeOf() 2021-06-07 22:56:16 +01:00
Andreas Kling
ebb40e7d7b LibJS: Use macros to generate the common unary/binary bytecode ops 2021-06-07 23:20:48 +02:00
Linus Groh
e0a2c1544f LibJS: Fix whitespace errors in ASTCodegen.cpp 2021-06-07 21:19:12 +01:00
Linus Groh
9c0d83d11d LibJS: Add bytecode generation for BinaryOp::InstanceOf 2021-06-07 21:18:35 +01:00
Linus Groh
5e996de8c6 LibJS: Add bytecode generation for BinaryOp::In 2021-06-07 21:18:35 +01:00
Gunnar Beutner
93eae063a1 LibJS: Make sure that if expressions yield the correct value 
When evaluated as an expression "if (true) { 3 } else { 5 }"
should yield 3. This updates the bytecode interpreter to make
it so.
 2021-06-07 22:10:57 +02:00
Gunnar Beutner
2c10bd72f2 LibJS: Make sure scope expressions yield the correct value 
When evaluated as an expression "{ 3 }" should yield 3. This updates
the bytecode interpreter to make it so.
 2021-06-07 22:10:57 +02:00
Ryan Chandler
6612e026ba LibJS: Add <<, >> and >>> assignment operators 2021-06-07 21:23:11 +02:00
Luke
1e10965e61 LibJS: Add bytecode ops for <<, >> and >>> 2021-06-07 21:18:34 +02:00
Ryan Chandler
6681415f58 LibJS: Add support for various assignment operators 2021-06-07 21:18:19 +02:00
Ryan Chandler
18ac7fde12 LibJS: Add support for typed equality checks 2021-06-07 21:17:29 +02:00
Gunnar Beutner
9e69ffc1b1 LibJS: Add bytecode generation for EmptyStatement 2021-06-07 20:06:46 +01:00
Linus Groh
2b8a2542a0 LibJS: Add bytecode generation for DebuggerStatement 
No-op. :^)
 2021-06-07 20:05:50 +01:00
Linus Groh
fa9bad912e LibJS: Add bytecode instructions for a bunch of unary operators 
~, !, +, -, typeof, and void.
 2021-06-07 19:53:47 +01:00
Linus Groh
54fc7079c6 LibJS: Remove redundant Value() from bytecode bitwise ops execute() 2021-06-07 19:53:22 +01:00
Gunnar Beutner
8ed5b7dcfa LibJS: Add bytecode ops for loading boolean and null values 2021-06-07 20:26:45 +02:00
Ryan Chandler
6e2b266534 LibJS: Fix AbstractInequals returning result of AbstractEquals 2021-06-07 20:25:56 +02:00
Luke
ae763f1ade LibJS: Add bytecode ops for &, | and ^ 2021-06-07 20:17:24 +02:00
Gunnar Beutner
4be3374b24 LibJS: Add bytecode ops for >, >= and <= 2021-06-07 20:09:23 +02:00
Gunnar Beutner
55f0791b13 LibJS: Add bytecode instructions for modulo and exponentiation 2021-06-07 19:40:27 +02:00
Gunnar Beutner
3c5ce9b5b7 LibJS: Add bytecode instructions for multiplication and division 2021-06-07 19:21:36 +02:00
Andreas Kling
4776c50d5f LibJS: Remove unused Bytecode::Block::m_buffer_end 2021-06-07 18:30:39 +02:00