Class zmbt::lang::ExpressionView

ClassList > zmbt > lang > ExpressionView

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• #include <expression.hpp>

Inherited by the following classes: zmbt::lang::Expression

Public Types

Type	Name
typedef lang::Keyword	Keyword
typedef boost::json::value	V

Public Functions

Type	Name
	ExpressionView ()
	ExpressionView (ExpressionView const &) = default
	ExpressionView (ExpressionView &&) = default
	ExpressionView (EncodingView v)
	ExpressionView (Encoding enc)
boost::json::array const &	as_array () const
bool	as_bool () const
boost::json::object const &	as_object () const
boost::json::string const &	as_string () const
boost::json::value const &	data () const
EncodingView	encoding_view () const
boost::json::value	eval (boost::json::value const & x=nullptr, EvalContext ctx={}) const Evaluate expression.
bool	eval_as_predicate (ExpressionView const & x, Expression & err_sts, EvalContext ctx) const
bool	eval_as_predicate (boost::json::value const & x, Expression & err_sts, EvalContext ctx) const
Expression	eval_e (ExpressionView const & x, EvalContext ctx) const Evaluate expression.
Expression	eval_maybe_predicate (ExpressionView const & x, EvalContext ctx) const
bool	has_subexpr () const
boost::json::array const *	if_array () const
bool const *	if_bool () const
boost::json::object const *	if_object () const
boost::json::string const *	if_string () const
bool	is (Keyword const kwrd) const
bool	is_boolean () const
bool	is_complete_flip () const
bool	is_compose () const
bool	is_const () const
bool	is_error () const
bool	is_fork () const
bool	is_infix_fork () const
bool	is_infix_pipe () const
bool	is_infix_tuple () const
bool	is_link () const
bool	is_literal () const
bool	is_noop () const
bool	is_null () const
bool	is_preproc () const
bool	is_tuple () const
bool	is_valid_link () const
Keyword	keyword () const
boost::json::string_view	keyword_to_str () const
bool	match (boost::json::value const & x, Operator const & op={}) const Eval and cast to boolean, return false on error.
bool	operator!= (ExpressionView const & o) const
ExpressionView &	operator= (ExpressionView const &) = default
ExpressionView &	operator= (ExpressionView &&) = default
bool	operator== (ExpressionView const & o) const
std::list< std::pair< std::string, std::string > >	preprocessing_parameters () const List of [param, json ptr].
std::string	prettify () const
std::ostream &	prettify_to (std::ostream & os) const
void	prettify_to (char(&) buff) const
void	prettify_to (char * buff, std::size_t n) const
std::string	serialize () const
std::list< ExpressionView >	subexpressions_list () const Subexpressions.
boost::json::value	to_json () const
std::list< ExpressionView >	tuple_parameters () const
virtual	~ExpressionView () = default

Protected Attributes

Type	Name
EncodingView	encoding_view_

Detailed Description

Expression Language implementation class.

See also: Expression Language documentation.

Public Types Documentation

typedef Keyword

using zmbt::lang::ExpressionView::Keyword =  lang::Keyword;

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typedef V

using zmbt::lang::ExpressionView::V =  boost::json::value;

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Public Functions Documentation

function ExpressionView [1/5]

zmbt::lang::ExpressionView::ExpressionView () 

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function ExpressionView [2/5]

zmbt::lang::ExpressionView::ExpressionView (
    ExpressionView const &
) = default

---

function ExpressionView [3/5]

zmbt::lang::ExpressionView::ExpressionView (
    ExpressionView &&
) = default

---

function ExpressionView [4/5]

inline explicit zmbt::lang::ExpressionView::ExpressionView (
    EncodingView v
) 

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function ExpressionView [5/5]

inline explicit zmbt::lang::ExpressionView::ExpressionView (
    Encoding enc
) 

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function as_array

inline boost::json::array const & zmbt::lang::ExpressionView::as_array () const

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function as_bool

inline bool zmbt::lang::ExpressionView::as_bool () const

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function as_object

inline boost::json::object const & zmbt::lang::ExpressionView::as_object () const

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function as_string

inline boost::json::string const & zmbt::lang::ExpressionView::as_string () const

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function data

boost::json::value const & zmbt::lang::ExpressionView::data () const

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function encoding_view

inline EncodingView zmbt::lang::ExpressionView::encoding_view () const

---

function eval

Evaluate expression.

boost::json::value zmbt::lang::ExpressionView::eval (
    boost::json::value const & x=nullptr,
    EvalContext ctx={}
) const

Parameters:

• x run-time argument
• ctx evaluation context

Returns:

---

function eval_as_predicate [1/2]

bool zmbt::lang::ExpressionView::eval_as_predicate (
    ExpressionView const & x,
    Expression & err_sts,
    EvalContext ctx
) const

Eval const expressions as Eq(expr), except for Noop, otherwise eval expr.

---

function eval_as_predicate [2/2]

bool zmbt::lang::ExpressionView::eval_as_predicate (
    boost::json::value const & x,
    Expression & err_sts,
    EvalContext ctx
) const

Eval const expressions as Eq(expr), except for Noop, otherwise eval expr. Store result in arg reference and return error status.

---

function eval_e

Evaluate expression.

Expression zmbt::lang::ExpressionView::eval_e (
    ExpressionView const & x,
    EvalContext ctx
) const

Parameters:

• x run-time argument
• ctx evaluation context

Returns:

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function eval_maybe_predicate

Expression zmbt::lang::ExpressionView::eval_maybe_predicate (
    ExpressionView const & x,
    EvalContext ctx
) const

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function has_subexpr

inline bool zmbt::lang::ExpressionView::has_subexpr () const

---

function if_array

inline boost::json::array const * zmbt::lang::ExpressionView::if_array () const

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function if_bool

inline bool const * zmbt::lang::ExpressionView::if_bool () const

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function if_object

inline boost::json::object const * zmbt::lang::ExpressionView::if_object () const

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function if_string

inline boost::json::string const * zmbt::lang::ExpressionView::if_string () const

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function is

inline bool zmbt::lang::ExpressionView::is (
    Keyword const kwrd
) const

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function is_boolean

bool zmbt::lang::ExpressionView::is_boolean () const

---

function is_complete_flip

inline bool zmbt::lang::ExpressionView::is_complete_flip () const

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function is_compose

inline bool zmbt::lang::ExpressionView::is_compose () const

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function is_const

bool zmbt::lang::ExpressionView::is_const () const

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function is_error

inline bool zmbt::lang::ExpressionView::is_error () const

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function is_fork

inline bool zmbt::lang::ExpressionView::is_fork () const

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function is_infix_fork

inline bool zmbt::lang::ExpressionView::is_infix_fork () const

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function is_infix_pipe

inline bool zmbt::lang::ExpressionView::is_infix_pipe () const

---

function is_infix_tuple

inline bool zmbt::lang::ExpressionView::is_infix_tuple () const

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function is_link

inline bool zmbt::lang::ExpressionView::is_link () const

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function is_literal

inline bool zmbt::lang::ExpressionView::is_literal () const

---

function is_noop

inline bool zmbt::lang::ExpressionView::is_noop () const

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function is_null

inline bool zmbt::lang::ExpressionView::is_null () const

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function is_preproc

inline bool zmbt::lang::ExpressionView::is_preproc () const

---

function is_tuple

inline bool zmbt::lang::ExpressionView::is_tuple () const

---

function is_valid_link

inline bool zmbt::lang::ExpressionView::is_valid_link () const

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function keyword

inline Keyword zmbt::lang::ExpressionView::keyword () const

---

function keyword_to_str

boost::json::string_view zmbt::lang::ExpressionView::keyword_to_str () const

---

function match

Eval and cast to boolean, return false on error.

bool zmbt::lang::ExpressionView::match (
    boost::json::value const & x,
    Operator const & op={}
) const

---

function operator!=

inline bool zmbt::lang::ExpressionView::operator!= (
    ExpressionView const & o
) const

---

function operator=

ExpressionView & zmbt::lang::ExpressionView::operator= (
    ExpressionView const &
) = default

---

function operator=

ExpressionView & zmbt::lang::ExpressionView::operator= (
    ExpressionView &&
) = default

---

function operator==

inline bool zmbt::lang::ExpressionView::operator== (
    ExpressionView const & o
) const

---

function preprocessing_parameters

List of [param, json ptr].

std::list< std::pair< std::string, std::string > > zmbt::lang::ExpressionView::preprocessing_parameters () const

---

function prettify

std::string zmbt::lang::ExpressionView::prettify () const

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function prettify_to [1/3]

std::ostream & zmbt::lang::ExpressionView::prettify_to (
    std::ostream & os
) const

---

function prettify_to [2/3]

template<std::size_t N>
inline void zmbt::lang::ExpressionView::prettify_to (
    char(&) buff
) const

---

function prettify_to [3/3]

void zmbt::lang::ExpressionView::prettify_to (
    char * buff,
    std::size_t n
) const

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function serialize

inline std::string zmbt::lang::ExpressionView::serialize () const

---

function subexpressions_list

Subexpressions.

std::list< ExpressionView > zmbt::lang::ExpressionView::subexpressions_list () const

---

function to_json

boost::json::value zmbt::lang::ExpressionView::to_json () const

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function tuple_parameters

std::list< ExpressionView > zmbt::lang::ExpressionView::tuple_parameters () const

---

function ~ExpressionView

virtual zmbt::lang::ExpressionView::~ExpressionView () = default

---

Protected Attributes Documentation

variable encoding_view_

EncodingView zmbt::lang::ExpressionView::encoding_view_;

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Friends Documentation

friend operator*

Evaluate x to lhs expression.

V zmbt::lang::ExpressionView::operator* (
    ExpressionView expr,
    ExpressionView const & x
) 

Equivalent to expr.eval(x).

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friend operator*

Evaluate expression.

V zmbt::lang::ExpressionView::operator* (
    ExpressionView expr
) 

Equivalent to expr.eval().

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friend operator<<

std::ostream & zmbt::lang::ExpressionView::operator<< (
    std::ostream & os,
    ExpressionView const & expr
) 

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friend operator<<

zmbt::Logger & zmbt::lang::ExpressionView::operator<< (
    zmbt::Logger & logger,
    ExpressionView const & expr
) 

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The documentation for this class was generated from the following file zmbt-framework/zmbt-framework/backends/cxx/include/zmbt/expr/expression.hpp