hilti::Attribute Class Reference

#include <attribute.h>

Inheritance diagram for hilti::Attribute:

Public Member Functions
	Attribute (std::string tag, Meta m=Meta())
	Attribute (std::string tag, Node v, Meta m=Meta())
const auto &	tag () const
bool	hasValue () const
const Node &	value () const
Result< std::reference_wrapper< const Expression > >	valueAsExpression () const
Result< std::string >	valueAsString () const
Result< int64_t >	valueAsInteger () const
auto	properties () const
bool	operator== (const Attribute &other) const
Public Member Functions inherited from hilti::NodeBase
	NodeBase (Meta meta)
	NodeBase (std::vector< Node > childs, Meta meta)
template<typename T >
const T &	child (int i) const
template<typename T >
void	assertChildIsA (int i)
template<typename T >
auto	childs (int begin, int end) const
auto	childRefs (int begin, int end)
template<typename T >
hilti::node::Set< T >	childsOfType () const
template<typename T >
std::vector< NodeRef >	childRefsOfType () const
void	addChild (Node n)
const auto &	childs () const
auto &	childs ()
auto &	meta () const
void	setMeta (Meta m)
bool	pruneWalk () const

Detailed Description

AST node captures an &<tag> attribute along with an optional argument.

Constructor & Destructor Documentation

Attribute() [1/2]

hilti::Attribute::Attribute ( std::string  tag, Meta  m = Meta()  )

inline

Constructor for an attribute with no argument.

Parameters

tag	name of the attribute, including the leading &
m	meta data to associate with the node

Attribute() [2/2]

hilti::Attribute::Attribute ( std::string  tag, Node  v, Meta  m = Meta()  )

inline

Constructor for an attribute coming with an argument. The argument must be either an AST node representing an expression.

Parameters

tag	name of the attribute, including the leading &
v	node representing the argument to associate with the attribute; must be an expression
m	meta data to associate with the node

Member Function Documentation

hasValue()

bool hilti::Attribute::hasValue ( ) const

inline

Returns true if an argument is associated with the attribute.

properties()

auto hilti::Attribute::properties ( ) const

inline

Implements the Node interface.

tag()

const auto& hilti::Attribute::tag ( ) const

inline

Returns the name of the attribute, including the leading &.

value()

const Node& hilti::Attribute::value ( ) const

inline

Returns the attribute associated with the node.

Exceptions

<tt>std::out_of_range</tt>

if the attribute does not have an argument

valueAsExpression()

Result<std::reference_wrapper<const Expression> > hilti::Attribute::valueAsExpression ( ) const

inline

Returns the attributes argument as type T. T must be either an Expression, or std::string. In the former case, the value must be an AST expression node. In the latter case, the argument must be a string constructor expression, and the returned value will be the string it represents.

Template Parameters

T	either Expression or std::string

Returns

the argument, or an error if the argument could not be interpreted as type T

Exceptions

<tt>std::out_of_range</tt>

if the attribute does not have an argument

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The documentation for this class was generated from the following file:

• /home/docs/checkouts/readthedocs.org/user_builds/spicy-docs/checkouts/v1.3.0/hilti/toolchain/include/ast/attribute.h