Crate meta_tools

Collection of general purpose 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
  Dependencies.
• exposed
  Exposed namespace of the module.
• meta
  Collection of general purpose meta tools.
• orphan
  Orphan namespace of the module.
• prelude
  Prelude to use essentials: use my_module::prelude::*.
• protected
  Protected namespace of the module.

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.