query.h File Reference

A library to express information in a functional way that allows for easy auto-complete and shorter expressions. More...

#include <algorithm>
#include <functional>
#include <iterator>
#include <map>
#include <optional>
#include <random>
#include <set>
#include <tuple>
#include <type_traits>
#include <utility>
#include <valarray>
#include <variant>
#include <vector>
#include "asserts.h"
#include "traits.h"
#include "transforms.h"

Include dependency graph for query.h:

Go to the source code of this file.

Classes
class	fcpp::Queryable< T >
	Core object used to query items and hold the sequence state. More...
class	fcpp::WhenTrue< T >
	True / if block query of Queryable<T>::branch method. More...
class	fcpp::WhenFalse< WhenTrueQueriedT, T >
	False / else block query of Queryable<T>::branch method. More...
class	fcpp::Merge< TrueT, FalseT >
	Merge result of both if and else block queries from Queryable<T>::branch method. More...
class	fcpp::Queryable< T >
	Core object used to query items and hold the sequence state. More...
class	fcpp::Merge< TrueT, FalseT >
	Merge result of both if and else block queries from Queryable<T>::branch method. More...
class	fcpp::WhenFalse< WhenTrueQueriedT, T >
	False / else block query of Queryable<T>::branch method. More...
class	fcpp::WhenTrue< T >
	True / if block query of Queryable<T>::branch method. More...

Macros
#define	EXPR(...)   __GET_MACRO__(__VA_ARGS__, __EXPR2__, __EXPR1__)(auto, __VA_ARGS__)
	Syntactic sugar for terse expressions using pass by value. More...
#define	CR_EXPR(...)   __GET_MACRO__(__VA_ARGS__, __EXPR2__, __EXPR1__)(const auto &, __VA_ARGS__)
	Syntactic sugar for terse expressions using pass by constant reference. More...

Functions
template<typename T >
Queryable< T >	fcpp::query (std::vector< T > items)
	Queries the sequence of items using a vector. More...
template<typename T >
bool	fcpp::operator== (const Queryable< T > &lhs, const std::vector< T > &rhs)
template<typename T >
bool	fcpp::operator== (const Queryable< T > &lhs, const Queryable< T > &rhs)

Detailed Description

A library to express information in a functional way that allows for easy auto-complete and shorter expressions.

Author

Andrew Walsh (awals.nosp@m.h128.nosp@m.@gmai.nosp@m.l.co.nosp@m.m)

Version

0.1

Date

2021-08-20

Copyright

Copyright 2021 Google LLC

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

https://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Macro Definition Documentation

CR_EXPR

#define CR_EXPR

(

...

)

__GET_MACRO__(__VA_ARGS__, __EXPR2__, __EXPR1__)(const auto &, __VA_ARGS__)

Syntactic sugar for terse expressions using pass by constant reference.

• List of variable names passed in.

  Returns

  Produced value of the variables and operations evaluated.

  Examples: CR_EXPR(x, y, x + y) CR_EXPR(x, x + 10)

EXPR

#define EXPR

(

...

)

__GET_MACRO__(__VA_ARGS__, __EXPR2__, __EXPR1__)(auto, __VA_ARGS__)

Syntactic sugar for terse expressions using pass by value.

• List of variable names passed in.

  Returns

  Produced value of the variables and operations evaluated.

  Examples: EXPR(x, y, x + y) EXPR(x, x + 10)

Function Documentation

operator==() [1/2]

template<typename T >

bool fcpp::operator==	(	const Queryable< T > &	lhs,
		const Queryable< T > &	rhs
	)

Parameters

lhs	Left operand Queryable<T> to compare.
rhs	Right operand Queryable<T> to compare.

Returns

true if both sides are equal.

false if both side are not equal.

operator==() [2/2]

template<typename T >

bool fcpp::operator==	(	const Queryable< T > &	lhs,
		const std::vector< T > &	rhs
	)

Remarks

Based off of internal items_ stored inside Queryable<T>.

Parameters

lhs	Left operand Queryable<T> to compare.
rhs	Right operand std::vector<T> to compare.

Returns

true if both sides are equal.

false if both side are not equal.

query()

template<typename T >

Queryable< T > fcpp::query

(

std::vector< T >

items

)

Queries the sequence of items using a vector.

Template Parameters

T	Type of items to query over.

Parameters

items

Items to query over.

Returns

Queryable<T>