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Apparently the standard library had LazyLock which is enough for what I
wanted to achieve with lazy_static.
Signed-off-by: Miquel Sabaté Solà <mikisabate@gmail.com>
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This allows users to define variables directly from the command line,
which is useful for testing purposes.
Signed-off-by: Miquel Sabaté Solà <mikisabate@gmail.com>
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When I introduced this dependency it looked like a good idea to have a
better-looking replacement to cl65's cfg format. That being said, the
end result wasn't *much* prettier either, and the end result could be
even bigger and equally confusing.
Since 5f48de69f46d ("Add support for cfg files") there is quite the
framework in order to support regular cl65's cfg files. Hence, this
commit takes another approach: let's tune this format to a more
compressed and simplified one. This is now the current "nasm cfg"
format, and it allowed us to re-use a lot of code while also being more
to the point for NES/Famicom development than the original cfg format.
With this new format, we can now remove the dependency on TOML and all
of the inner dependencies which were quite a lot.
Signed-off-by: Miquel Sabaté Solà <mikisabate@gmail.com>
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This dependency was easily avoidable and it brought with it a lot of
inner dependencies of its own, most notably 'zerocopy-derive', which
forbid us to compile the affected programs purely statically.
Signed-off-by: Miquel Sabaté Solà <mikisabate@gmail.com>
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This needed some heavy lifting when it comes to how files were located.
This means that statements like .include/.incbin now take into
consideration a new list made out of SourceInfo, which holds enough
information to translate from which file a node comes from. This has
also been added into errors, so they are more informative on what went
wrong.
In order to tests this, besides all the regular unit tests, a new e2e
test has been added.
Signed-off-by: Miquel Sabaté Solà <mikisabate@gmail.com>
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This is a control statement which acts similarly as .proc/.macro/.scope,
in which an inner block is allocated for it. Hence, all the previous
work from 1f8a6becc7cd ("parser: Implement block bodies") and
ec8b709fa24c ("Implement block bodies inside of the assembler") make
this one out possible, as .repeat statements don't have an identifier
that can be used for hashing.
From the parser perspective this introduction raises two new things.
First of all this control statement also needed a differentiation
between the amount of required arguments, and the allowed ones, since
there is a second optional argument to it. And second, even the
identifier is not given, we have to generate one so to add a context for
it. This was at first not needed, but introducing .repeat-only variables
means that we have to have inner contexts which need to be named somehow
so we can retrieve the context later when picking up the value for them
again.
This last thing brought the need for a new dependency: rand. This is
used to generate a random string to identify the .repeat block.
Signed-off-by: Miquel Sabaté Solà <mikisabate@gmail.com>
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It is not safe to store a node index for macros since the list of nodes
that is passed down during assembly might change depending on whether an
inner block is being evaluated. Hence, the previous implementation would
break on a simple macro call inside of a .proc.
This also raised some concerns on the design around the API, since the
lifetime of references for internal assembler data needed an explicit
lifetime now, and as a side-effect functions like `assemble` had to be
moved out of the inner impl Assembler. This is in retrospect also a
better design choice.
Fixes: ec8b709fa24c ("Implement block bodies inside of the assembler").
Signed-off-by: Miquel Sabaté Solà <mikisabate@gmail.com>
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This will allow the creation of configuration files that can live
outside of this tree, so developers can fine tune configuration files of
their own without having to pick up whatever is currently available.
Signed-off-by: Miquel Sabaté Solà <mikisabate@gmail.com>
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This also forced us to add the current working directory to the
`Assembler::assemble` public function, as otherwise this control
statement and others wouldn't know how to resolve relative paths.
Signed-off-by: Miquel Sabaté Solà <mikisabate@gmail.com>
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They were named with increasing numbers due to the fact that that's the
default behaviour from cargo fuzz's command. So, just rename them to
proper human-readable names.
Signed-off-by: Miquel Sabaté Solà <mikisabate@gmail.com>
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Signed-off-by: Miquel Sabaté Solà <mikisabate@gmail.com>
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As of 184c39579227 ("Re-work the parser from scratch") the parser has a
proper AST, and the assembler has to traverse it accordingly.
Moreover, the assembler has been stripped from a lot of unneeded memory
allocations and it's overall more keen on using mere references when
possible.
Signed-off-by: Miquel Sabaté Solà <mikisabate@gmail.com>
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Signed-off-by: Miquel Sabaté Solà <mikisabate@gmail.com>
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