The Lexer and AST already have all the functionality required in place,
so this is just updating Parser::match_secondary_expression() and
Parser::parse_expression() to handle TokenType::{Ampersand,Pipe,Caret},
as well as adding some tests.
Since ByteBuffer is a Buffer, it should allow us to overwrite parts of
it that we have allocated.
This comes in useful in handling unsequenced writes like handling
fragmented ip packets :^)
With relative filenames in the executable code, the executable is basically not
relocatable. This makes out-of-source builds unneccesery hard. This patchset moves
the relative link into the filesystem: that can be handled much easier :^)
There is no such thing as a "undefined literal" in JS - undefined is
just a property on the global object with a value of undefined.
This is pretty similar to NaN.
var undefined = "foo"; is a perfectly fine AssignmentExpression :^)
This patch adds JS::Shape, which implements a transition tree for our
Object class. Object property keys, prototypes and attributes are now
stored in a Shape, and each Object has a Shape.
When adding a property to an Object, we make a transition from the old
Shape to a new Shape. If we've made the same exact transition in the
past (with another Object), we reuse the same transition and both
objects may now share a Shape.
This will become the foundation of inline caching and other engine
optimizations in the future. :^)
We now print thrown exceptions and clear the interpreter state so it
can continue running instead of refusing to do anything after an
exception has been thrown.
Fixes#1572.
Let's move towards using references over pointers in LibJS as well.
I had originally steered away from it because that's how I've seen
things done in other engines. But this is not the other engines. :^)
This patchsets adds the semantic check of two values. One first approach
was to compare the (generated) json strings of the two values. This works
out in the most cases, but not with numbers, where "1.0" and "1" in JSON
format are semantically the same. Therefore, this patch adds deep (recursive)
check of two JsonValues.
When we enter a repl we call initialize_global_object on our custom
ReplObject in order to expose REPL specific features. Specifically:
help(), exit(code), and load("file1.js", "file2.js", "fileEtc.js").
This adds a replace functionality that replaces a string that contains
occurences of a "needle" by a "replacement" value. With "all_occurences"
enabled, all occurences are being replaced, otherwise only the first
occurence is being replaced.
This adds Function::construct() for constructor function calls via `new`
keyword. NativeFunction doesn't have constructor behaviour by default,
ScriptFunction simply calls call() in construct()
