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[RFC] Revise the background on pacakges and imports.

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Starting to establish precise nomenclature and definitions for these Leo
concepts.
This commit is contained in:
Alessandro Coglio 2021-10-04 19:04:11 -07:00
parent bc9658b972
commit 93210e7879
1 changed files with 14 additions and 8 deletions
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22
docs/rfc/003-imports-stabilization.md
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@ -41,15 +41,21 @@ proving systems and curves.
Leo supports packages and importing, similarly to other languages.
A Leo program consists of a main file,
which may import additional packages (files),
which may in turn import other packages.
A Leo _project_ consists of a `main.leo` file
and zero or more additional `.leo` files;
the latter may be organized in subdirectories.
The content of each file is as defined by `file` in the ABNF grammar:
it consists of types, functions, etc.
Each non-main file forms a Leo _package_ (because it packages the types, functions, etc. that it defines),
which can be referenced via its path, without the `.leo` extension and with `/` replaced by `.`
(restrictions on the file and directory names derive from the definition of `package-name` in the ABNF grammar,
and ensure that the package names can be resolved to file system paths).
A Leo project also forms a package, which can be published in the Aleo Package Manager (APM),
a repository of Aleo packages, similar to `crates.io` in Rust.
Imported packages may be local, i.e. found in the same project directory where the main file is.
In that case, their package names match the directory structure.
Packages may be also imported from the Aleo Package Manager (APM),
which is a repository of Aleo packages, similar to `crates.io` in Rust.
The files in a Leo project can import entities (types, functions, etc.) from
not only local packages (i.e. other files in the same project),
but also packages in the APM.
This RFC is focused on importing packages from the APM.
Each package in the APM is uniquely identified by: