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LARA
inox
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dec6efbc
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dec6efbc
authored
9 years ago
by
Viktor Kuncak
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doc: cross references in intro, for impatient. Typo fixed.
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doc/gettingstarted.rst
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doc/installation.rst
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@@ -30,7 +30,7 @@ into `y < res`, Leon should report a counterexample; try
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@@ -30,7 +30,7 @@ into `y < res`, Leon should report a counterexample; try
clicking on the names of parameters `x` and `y` as well
clicking on the names of parameters `x` and `y` as well
as various parts in the `ensuring` clause.
as various parts in the `ensuring` clause.
You can also select from a number of pr
edefin
ed examples,
You can also
**
select from a number of pr
ovid
ed examples
**
,
and then edit them subsequently. Selecting a different
and then edit them subsequently. Selecting a different
sample program from the web interface will erase the
sample program from the web interface will erase the
previously entered program.
previously entered program.
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@@ -96,7 +96,7 @@ Building Documentation
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@@ -96,7 +96,7 @@ Building Documentation
To build this documentation locally, you will need Sphinx (
To build this documentation locally, you will need Sphinx (
http://sphinx-doc.org/ ), a restructured text toolkit that
http://sphinx-doc.org/ ), a restructured text toolkit that
was originally
buil
d to support Python documentation. You will
was originally
develope
d to support Python documentation. You will
also need `make`.
also need `make`.
After installing sphinx, entering the `doc/` directory of
After installing sphinx, entering the `doc/` directory of
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Introduction
Introduction
============
============
The Leon system is an automated system for verifying, repairing, and
The Leon system aims to help developers build verified Scala software.
synthesizing Scala programs.
It encourages using a small set of core Scala features, but provides
advanced automation functionality users do not obtain in today's
compilers and development environments for programming languages.
In particular, Leon can
Leon supports programs written in :ref:`Pure Scala <purescala>`, a purely
* verify statically that your program confirms to a given
functional subset of Scala. The :ref:`XLang <xlang>` extension enables Leon to
specification and that it cannot crash at run-time
work on a richer subset of Scala, including imperative features. From the
perspective of the end user, that distinction between the two sets of features
should be mostly meaningless, but it can help getting an intuition when trying
to prove difficult properties.
* repair a program for you to ensure that the above holds
* automatically execute and synthesize working functions
from partial input/output specifications and test cases.
Leon primarily supports programs written in :ref:`Pure Scala <purescala>`, a purely
functional subset of Scala. That said, the :ref:`XLang <xlang>` extension enables Leon to
work on a richer subset of Scala, including imperative features.
The :ref:`Pure Scala <purescala>` features are at the *core* of the Leon
The :ref:`Pure Scala <purescala>` features are at the *core* of the Leon
system. They are considered as primitives and get a personalized treatment in
system. They are considered as primitives and get a personalized treatment in
the solving algorithms of Leon. On the other hand, any feature introduced by
the solving algorithms of Leon. On the other hand, features introduced by
:ref:`XLang <xlang>` can be --- and is --- encoded into a mix of Pure Scala
:ref:`XLang <xlang>` are handled by translation into Pure Scala
concepts. However, they are more than just syntactic sugar --- some of those
concepts. They are often more than just syntactic sugar, because some of them
features actually require significant modification of the original program.
require significant modification of the original program, such as introducing
additional parameters to a set of functions.
If you would like to use Leon now, check the :ref:`Getting Started <gettingstarted>`
section and try our :ref:`Tutorial <tutorial>`.
To learn more about the functionality that Leon provides, read on below.
Software Verification
Software Verification
---------------------
---------------------
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