tcalc::EvalContext Class Reference

Evaluation context which stores variables and built-in functions. More...

#include <eval.hpp>

Public Member Functions
	EvalContext (std::unordered_map< std::string, double > vars, std::unordered_map< std::string, builtins::Function > funcs, std::size_t call_depth=0)
	Construct a new Eval Context object.
TCALC_INLINE auto &	vars () noexcept
	Get variables.
TCALC_INLINE auto &	funcs () noexcept
	Get built-in functions.
error::Result< double >	var (const std::string &name) const
	Get a variable.
TCALC_INLINE void	var (const std::string &name, double value) noexcept
	Set a variable.
error::Result< builtins::Function >	func (const std::string &name) const
	Get a built-in function.
TCALC_INLINE void	func (const std::string &name, builtins::Function func) noexcept
	Set a built-in function.
TCALC_INLINE auto	call_depth () const noexcept
	Get the call depth.
TCALC_INLINE void	call_depth (std::size_t depth)
	Set the call depth.
TCALC_INLINE void	increment_call_depth () noexcept
	Increment the call depth.
void	update_with (const EvalContext &ctx)
	Update the context with another context.

Static Public Attributes
static constexpr std::size_t	MAX_CALL_DEPTH = 1000

Detailed Description

Evaluation context which stores variables and built-in functions.

Constructor & Destructor Documentation

EvalContext()

tcalc::EvalContext::EvalContext ( std::unordered_map< std::string, double >  vars, std::unordered_map< std::string, builtins::Function >  funcs, std::size_t  call_depth = 0  )

inline

Construct a new Eval Context object.

Parameters

vars	Variables map.
funcs	Built-in functions map.

Member Function Documentation

call_depth() [1/2]

TCALC_INLINE auto tcalc::EvalContext::call_depth ( ) const

inlinenoexcept

Get the call depth.

Returns

std::size_t Call depth.

call_depth() [2/2]

TCALC_INLINE void tcalc::EvalContext::call_depth ( std::size_t  depth )

inline

Set the call depth.

Parameters

depth

Call depth.

func() [1/2]

error::Result< builtins::Function > tcalc::EvalContext::func

(

const std::string &

name

)

const

Get a built-in function.

Parameters

name	Function name.

Returns

error::Result<BuiltinFunc> Function pointer result.

func() [2/2]

TCALC_INLINE void tcalc::EvalContext::func ( const std::string &  name, builtins::Function  func  )

inlinenoexcept

Set a built-in function.

Parameters

name	Function name.
func	Function pointer.

funcs()

TCALC_INLINE auto & tcalc::EvalContext::funcs ( )

inlinenoexcept

Get built-in functions.

Returns

std::unordered_map<std::string, BuiltinFunc>& Built-in functions map.

update_with()

void tcalc::EvalContext::update_with

(

const EvalContext &

ctx

)

Update the context with another context.

Parameters

ctx	Other context.

var() [1/2]

error::Result< double > tcalc::EvalContext::var

(

const std::string &

name

)

const

Get a variable.

Parameters

name	Variable name.

Returns

error::Result<double> Variable value result.

var() [2/2]

TCALC_INLINE void tcalc::EvalContext::var ( const std::string &  name, double  value  )

inlinenoexcept

Set a variable.

Parameters

name	Variable name.
value	Variable value.

vars()

TCALC_INLINE auto & tcalc::EvalContext::vars ( )

inlinenoexcept

Get variables.

Returns

std::unordered_map<std::string, double>& Variables map.

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

• include/tcalc/eval.hpp
• src/eval.cpp