Crate meta_tools

Module :: meta_tools

Collection of general purpose meta tools.

Basic use-case :: variadic constructor of collections

Among other useful meta tools the module aggregates variadic constructors of collections. For example macro hmap! for constructing a hash map.

use meta_tools::*;

let meta_map = hmap! { 3 => 13 };
let mut std_map = std::collections::HashMap::new();
std_map.insert( 3, 13 );
assert_eq!( meta_map, std_map );

Basic Use Case :: function-style call

Apply a macro for each element of a list.

Macro for_each may be called either in function-style way or in map-style way. Pass name of macro to apply to elements as the first arguments and elements after the macro name. Use comma as delimiter.

use meta_tools::*;
for_each!( dbg, "a", "b", "c" );

// generates
dbg!( "a" );
dbg!( "b" );
dbg!( "c" );

To add to your project

cargo add meta_tools

Try out from the repository

git clone https://github.com/Wandalen/wTools
cd wTools
cd examples/meta_tools_trivial
cargo run

Modules

dependency

Namespace with dependencies.

exposed

Exposed namespace of the module.

meta

Collection of general purpose meta tools.

orphan

Orphan namespace of the module.

own

Own namespace of the module.

prelude

Prelude to use essentials: use my_module::prelude::*.

Macros

_impls_callback

Internal impls1 macro. Don’t use.

bmap

Literally just a BTreeMap literal with keys and values into’d.

braces_unwrap

Unwrap braces of token tree and pass its content to the passed callback. If token tree in not braced then it passed to callback as is.

bset

Literally just a BTreeSet literal with values into’d.

fn_name

Get name of a function.

fn_rename

Macro to rename function.

fns

Split functions.

fns2

Split functions.

for_each

heap

Literally just a BinaryHeap literal with values into’d.

hmap

Literally just a HashMap literal with keys and values into’d.

hset

Literally just a HashSet literal with values into’d.

identity

Macro which returns its input as is.

impls

Macros to put each function under a named macro to index every function in a class.

impls1

Define implementation putting each function under a macro.

impls2

Define implementation putting each function under a macro.

impls3

Macros to put each function under a named macro to index every function in a class.

impls_optional

Define implementation putting each function under a macro.

index

Index of items.

list

Literally just a LinkedList literal with values into’d.

meta_idents_concat

mod_interface

Protocol of modularity unifying interface of a module and introducing layers.

tests_impls

Define implementation putting each function under a macro and adding attribute #[ test ].

tests_impls_optional

Define implementation putting each function under a macro and adding attribute #[ test ].

tests_index

Index of items.

vecd

Literally just a VecDeque literal with values into’d.