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/*!
    \contentspage list-of-language-items.html
    \previouspage artifact-item.html
    \page depends-item.html
    \nextpage export-item.html
    \ingroup list-of-language-items
    \ingroup list-of-items

    \title Depends Item
    \brief Represents dependencies between products and modules.

    A \c Depends item can appear inside a \l{Product Item} or \l{Module Item}.

    For example, the following product will load the \c cpp module. In addition, it will try
    to load modules that may or may not exist, and in the latter case use a fallback.
    \code
    Product {
        Depends { name: "cpp" }
        Depends {
            name: "awesome_module"
            versionAtLeast: "2.0"
            required: false
        }
        Depends {
            name: "adequate_module"
            condition: !awesome_module.present
            required: false
        }
        Depends {
            name: "crappy_module"
            condition: !awesome_module.present && !adequate_module.present
        }

        // ...
    }
    \endcode


    \section1 Depends Properties

    \table
    \header
        \li Property
        \li Type
        \li Default
        \li Description
    \row
        \li condition
        \li bool
        \li true
        \li Determines whether the dependency will actually be applied.
    \row
        \li versionAtLeast
        \li string
        \li undefined
        \li The minimum value that the dependency's \c version property needs to have. If the
            actual version is lower than that, loading the dependency will fail.
            The value consists of integers separated by dots.
    \row
        \li versionBelow
        \li string
        \li undefined
        \li A value that the dependency's \c version property must be lower than. If the
            actual version is equal to or higher than that, loading the dependency will fail.
            The value consists of integers separated by dots.
    \row
        \li productTypes
        \li stringList
        \li undefined
        \li A list of product types. Any enabled product in the project that has a matching type
            will become a dependency of the product containing the \c Depends item.
            This property is mutually exclusive with the \c name and \c submodules properties.
            The \c required and \c profiles properties are ignored if \c productTypes is set.
    \row
        \li required
        \li bool
        \li \c true
        \li Setting this property to \c false creates a \e{soft dependency}, meaning that it is not
            considered an error if the given module cannot be found. In such a case, an instance of
            the respective module will be created, but only the \c present property will be
            available for querying, and it will be set to \c false.
    \row
        \li name
        \li string
        \li undefined
        \li The name of the dependent product or module.
    \row
        \li profiles
        \li stringList
        \li \c{[product.profile]}
        \li If the dependency is on a product and that product is going to be built for more than
            one profile, then you can specify here which instance of the product the dependency is on.
            See the \c profiles property of the \c Product item for more information.
            An empty list means a dependency on all instances of the product with the given name,
            regardless of their profile.
    \row
        \li limitToSubProject
        \li bool
        \li \c false
        \li If \c productTypes is set and this property is \c true, then only products that
            are in the same sub-project as the product containing the \c Depends item are
            considered.
    \row
        \li submodules
        \li stringList
        \li undefined
        \li The submodules of \c module to depend on, if applicable.
    \endtable

*/
