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11814 commits 1 branch 0 tags 230 MiB
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3943 commits

Author SHA1 Message Date
Oriko
7b13fb557b LibGUI: Fix overflow crash in highlighter 2020-03-11 13:24:52 +01:00
Oriko
d58cf1a05d LibGUI: Syntax highlight string escape sequences 2020-03-11 10:16:55 +01:00
Oriko
03b1748d3f LibGUI: Clear old syntax highlighting 2020-03-11 10:05:01 +01:00
Andreas Kling
ddb5c995c6 LibJS: Let's say that Identifier is an Expression for now 
This allows us to tighten typing in various other classes.
 2020-03-10 12:29:28 +01:00
Andreas Kling
7de35118a9 LibJS: Move Value ops into Value.cpp and tweak BinaryOp names 2020-03-10 12:29:00 +01:00
Andreas Kling
fe6bd9650f LibJS: Use Value::to_boolean() wherever we haven't checked is_boolean() 
Unless we've verified that a Value is a boolean, we should not be
calling as_bool() on it.
 2020-03-10 12:28:10 +01:00
Alex Muscar
81c6f72134
EventLoop: Don't destroy ID allocator (#1403) 
The ID allocator is destroyed before a timer in HackStudio is
is unregistered leading to an access violation.

Fixes #1382.
 2020-03-10 11:31:37 +01:00
Andreas Kling
a0e18f4450 LibJS: Oops, non-zero values should boolify to true, not false 2020-03-10 10:08:42 +01:00
Andreas Kling
dc0b091c31 LibJS: Implement basic boolean coercion 
We can't expect the conditionals in "if" and "while" statements to
always return a bool, so we need to know how to boolify a JS::Value.
 2020-03-10 08:47:36 +01:00
Andreas Kling
386867da9f LibJS: Add a convenience helper for visiting a JS::Value 
We only really care to visit values if they refer to a Cell, but it's
nice to be able to say visit(some_value).
 2020-03-09 22:19:06 +01:00
Andreas Kling
05c80cac20 LibJS: Make the GC marking phase cycle-proof 
Don't visit cells that are already marked. This prevents the marking
phase from looping forever when two cells refer to each other.

Also do the marking directly from the CellVisitor, removing another
unnecessary phase of the collector. :^)
 2020-03-09 22:18:03 +01:00
Andreas Kling
0d6be2cac2 LibJS: Make FunctionDeclaration and CallExpression scope-aware 2020-03-09 21:53:39 +01:00
Andreas Kling
363c40e3f3 LibJS: Make sure we mark everything reachable from the scope stack 
This ensures that local variables survive GC.
 2020-03-09 21:49:20 +01:00
Andreas Kling
26165cd92a LibJS: Add a very simple ObjectExpression for "var x = {}" 
This allows us to allocate an empty new Object on the GC heap.
 2020-03-09 21:49:20 +01:00
Andreas Kling
15d8b9c671 LibJS: Add magical "$gc" function that can be called to trigger GC 
This will be immensely useful for testing.
 2020-03-09 21:49:20 +01:00
Andreas Kling
1382dbc5e1 LibJS: Add basic support for (scoped) variables 
It's now possible to assign expressions to variables. The variables are
put into the current scope of the interpreter.

Variable lookup follows the scope chain, ending in the global object.
 2020-03-09 21:49:20 +01:00
Andreas Kling
c6e54d2a49 LibJS: Simplify Heap::mark_live_cells() 
Instead of iterating over every single cell, simply iterate over the
live cells and mark them from there.

Thanks to Blam for suggesting this! :^)
 2020-03-09 19:36:15 +01:00
0xtechnobabble
5e817ee678 LibJS: Move logical not operator to new unary expression class 2020-03-09 19:33:07 +01:00
0xtechnobabble
65343388b8 LibJS: Add new bitwise and relational operators 
Do note that when it comes to evaluating binary expressions, we are
asserting in multiple contexts that the values we're operating on are
numbers, we should probably handle other value types to be more tolerant
in the future, since for example, adding a number and a string, in
which case the number is converted to a string implicitly which is then
concatenated, although ugly, is valid javascript.
 2020-03-09 19:33:07 +01:00
howar6hill
11aac6fdce
LibJS: Remove superfluous explicit in AST.h (#1395) 2020-03-09 14:37:08 +01:00
Liav A
032ce1948e LibBareMetal: Return FlatPtr from PhysicalAddress::offset_in_page() 2020-03-09 10:53:13 +01:00
howar6hill
1c83c5ed08 LibJS: Implement While statements 2020-03-09 10:13:27 +01:00
Stephan Unverwerth
1207187e97 LibJS: GC: Remove clear_all_mark_bits() 
Clearing all marked flags has been integrated into the sweep function,
saving an additional full iteration over the heap.
 2020-03-09 07:32:09 +01:00
Andreas Kling
63e4b744ed LibJS: Add a basic mark&sweep garbage collector :^) 
Objects can now be allocated via the interpreter's heap. Objects that
are allocated in this way will need to be provably reachable from at
least one of the known object graph roots.

The roots are currently determined by Heap::collect_roots().

Anything that wants be collectable garbage should inherit from Cell,
the fundamental atom of the GC heap.

This is pretty neat! :^)
 2020-03-08 19:23:58 +01:00
howar6hill
e72fb8f594 LibC: Fix a bug involving miscalculating week counts of last year 2020-03-08 13:56:01 +01:00
howar6hill
df40847c52 LibC: Reimplement asctime() in terms of strftime() 2020-03-08 13:56:01 +01:00
Andreas Kling
37fc6c117c Userspace: Add missing #includes now that AK/StdLibExtras.h is smaller 2020-03-08 13:06:51 +01:00
Andreas Kling
b1058b33fb AK: Add global FlatPtr typedef. It's u32 or u64, based on sizeof(void*) 
Use this instead of uintptr_t throughout the codebase. This makes it
possible to pass a FlatPtr to something that has u32 and u64 overloads.
 2020-03-08 13:06:51 +01:00
howar6hill
10e0d4a196
LibCore: Add format option for DateTime::to_string() (#1358) 2020-03-08 11:35:26 +01:00
0xtechnobabble
b6307beb6e LibJS: Implement if statements 
If statements execute a certain action or an alternative one depending
on whether the tested condition is true or false, this commit helps
establish basic control flow capabilities in the AST.
 2020-03-08 11:15:07 +01:00
0xtechnobabble
a96bf2c22e LibJS: Implement logical expressions 
Logical expressions are expressions which can return either true or
false according to a provided condition.
 2020-03-08 11:15:07 +01:00
0xtechnobabble
4e62dcd6e6 LibJS: Add typed comparison operator 
The `===` operator allows us to compare two values while taking their
type into consideration.
 2020-03-08 11:15:07 +01:00
0xtechnobabble
3fb0ff102c LibJS: Allow the dumping of literals that aren't numbers 2020-03-08 11:15:07 +01:00
Tibor Nagy
0d17e3bfa6 LibGUI: Fix null-termination of TextDocumentLine 2020-03-08 10:31:48 +01:00
Andreas Kling
0c7058aaa0 LibJS: Include the operator in BinaryExpression dumps 2020-03-07 23:17:07 +01:00
Andreas Kling
1611071ac7 LibJS: Flesh out JS::Value a little bit more 2020-03-07 23:17:07 +01:00
Andreas Kling
d52130836e LibJS: Simplify LogStream::operator<<(JS::Value) and move to .cpp file 2020-03-07 23:17:07 +01:00
Elisée Maurer
cbe0053a97 LibJS: Fix string representation for value of type undefined 2020-03-07 23:15:36 +01:00
Andreas Kling
f5476be702 LibJS: Start building a JavaScript engine for SerenityOS :^) 
I always tell people to start building things by working on the thing
that seems the most interesting right now. The most interesting thing
here was an AST + simple interpreter, so that's where we start!

There is no lexer or parser yet, we build an AST directly and then
execute it in the interpreter, producing a return value.

This seems like the start of something interesting. :^)
 2020-03-07 19:42:11 +01:00
Andreas Kling
7a9cb2dfca LibWeb: Cache the <body background> style image value 
This way we don't refetch the background image every time style is
recomputed (e.g when hovering different elements.)
 2020-03-07 11:17:18 +01:00
Andreas Kling
830a57c6b2 LibWeb: Rename directory LibHTML => LibWeb 
Let's rename this to LibWeb since it aims to provide more parts of the
web platform than just HTML. :^)
 2020-03-07 10:32:51 +01:00
Andreas Kling
7a6c4a72d5 LibWeb: Move everything into the Web namespace 2020-03-07 10:27:02 +01:00
Shannon Booth
6a3b12664a LibGUI: Move Icon and FontDatabase into the GUI namespace 
We also clean up some old references to the old G prefixed GUI classes

This also fixes a potential bug with using: C_OBJECT_ABSTRACT(GAbstractButton)
instead of C_OBJECT_ABSTRACT(AbstractButton)
 2020-03-07 01:33:53 +01:00
Shannon Booth
57f1c919df LibCore: Remove all remaining C prefix references 
LibCore's GZip is also moved into the Core namespace with this change.
 2020-03-07 01:33:53 +01:00
rhin123
72ef3e529a TerminalWidget: Implement ALT selection 
When holding ALT & selecting text, the terminal now forms a rectangle
selection similar to other terminal behaviors.
 2020-03-06 20:20:02 +01:00
howar6hill
4ba206b7e5 LibC: Fix a indentation problem in time.cpp 2020-03-06 20:15:07 +01:00
Andreas Kling
52954ccce6 LibC: Fix crash in free() now that mprotect() works correctly 
After we mprotect(PROT_NONE) an allocation block, we can't expect to
read the m_size from that block right after. :^)
 2020-03-06 10:52:36 +01:00
Andreas Kling
8bb361889c AK: Remove Optional::operator bool() 
This was causing some obvious-in-hindsight but hard to spot bugs where
we'd implicitly convert the bool to an integer type and carry on with
the number 1 instead of the actual value().
 2020-03-06 10:32:58 +01:00
howar6hill
ae233c1e82 LibC: Implement time formatting functions, partially support timezone 
Also fix a bug in mktime() caused by forgetting to check if the present year
is a leap year.
 2020-03-06 10:32:48 +01:00
Andreas Kling
211e938234 LibGUI: Fix missing equality checks in Window::did_remove_widget() 
We should only detach from the cursor tracking widgets on unparenting
if they were the same widget that's being unparented!

Thanks to @agoose77 for spotting this!

Fixes #1354.
 2020-03-05 19:49:18 +01:00