macro_tools 0.84.0

Tools for writing procedural macroses.
Documentation 
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use super :: *;
use the_module :: { qt, Result };

//

tests_impls! {

  fn pair() -> Result< () >
  {
  use macro_tools ::syn ::parse ::Parser;

  // test.case( "basic" );
  let code = qt!( x core ::option ::Option< i32 > );
  let got = syn ::parse2 :: < the_module ::Pair< syn ::Ident, syn ::Type > >( code )?;
  let exp = the_module ::Pair :: < syn ::Ident, syn ::Type > ::new
  (
   syn ::Ident ::new( "x", proc_macro2 ::Span ::call_site() ),
   syn ::parse2 :: < syn ::Type >( qt!( core ::option ::Option< i32 > ) )?,
 );
  assert_eq!( got, exp );

  // test.case( "pair of many" );
  let code = qt!
  {
   #[ derive( Copy ) ]
   #[ derive( Clone ) ]
   x1
 };
  let got = syn ::parse2 :: < the_module ::Pair< the_module ::Many< the_module ::AttributesOuter >, syn ::Ident > >( code )?;
  let exp = the_module ::Pair :: < the_module ::Many< the_module ::AttributesOuter >, syn ::Ident >
  (
   the_module ::Many( vec!
   [
  the_module ::AttributesOuter ::from( syn ::Attribute ::parse_outer.parse2( qt!
  {
   #[ derive( Copy ) ]
   #[ derive( Clone ) ]
 } )? ),
 ]),
   syn ::Ident ::new( "x1", proc_macro2 ::Span ::call_site() ),
 );
  assert_eq!( got, exp );

  // test.case( "punctuated of pairs" );
  let code = qt!
  {
   #[ derive( Copy ) ]
   x1,
   #[ derive( Clone ) ]
   x2,
   x3
 };
  type PunctuatedPairs = syn ::punctuated ::Punctuated
  <
   the_module ::Pair
   <
  the_module ::AttributesOuter,
  syn ::Ident,
 >,
   syn ::token ::Comma
 >;

  let got = PunctuatedPairs ::parse_terminated.parse2( code )?;
  let mut exp = PunctuatedPairs ::new();
  exp.push( the_module ::Pair ::new
  (
   the_module ::AttributesOuter ::from( syn ::Attribute ::parse_outer.parse2( qt!( #[ derive( Copy ) ] ) )? ),
   syn ::Ident ::new( "x1", proc_macro2 ::Span ::call_site() ),
 ));
  exp.push( the_module ::Pair ::new
  (
   the_module ::AttributesOuter ::from( syn ::Attribute ::parse_outer.parse2( qt!( #[ derive( Clone ) ] ) )? ),
   syn ::Ident ::new( "x2", proc_macro2 ::Span ::call_site() ),
 ));
  exp.push( the_module ::Pair ::new
  (
   // from!(),
   Default ::default(),
   syn ::Ident ::new( "x3", proc_macro2 ::Span ::call_site() ),
 ));
  assert_eq!( got, exp );

  //

  Ok( () )
 }

  //

  fn many() -> Result< () >
  {
  use macro_tools ::syn ::parse ::Parser;

  // test.case( "AttributesOuter" );
  let code = qt!
  {
   #[ derive( Copy ) ]
   #[ derive( Clone ) ]
   #[ derive( Debug ) ]
 };
  let got = syn ::parse2 :: < the_module ::Many< the_module ::AttributesOuter > >( code ).unwrap();
  let exp = the_module ::Many :: < the_module ::AttributesOuter > ::new_with( vec!
  [
   the_module ::AttributesOuter ::from( syn ::Attribute ::parse_outer.parse2( qt!
   {
  #[ derive( Copy ) ]
  #[ derive( Clone ) ]
  #[ derive( Debug ) ]
 } )? ),
 ]);
  assert_eq!( got, exp );

  // test.case( "AttributesInner" );
  let code = qt!
  {
   // #![ deny( missing_docs ) ]
   #![ warn( something ) ]
 };
  let got = syn ::parse2 :: < the_module ::Many< the_module ::AttributesInner > >( code ).unwrap();
  let exp = the_module ::Many :: < the_module ::AttributesInner > ::new_with( vec!
  [
   the_module ::AttributesInner ::from( syn ::Attribute ::parse_inner.parse2( qt!
   {
  // #![ deny( missing_docs ) ]
  #![ warn( something ) ]
 } )? ),
 ]);
  assert_eq!( got, exp );

  // test.case( "Item" );
  let code = qt!
  {
   fn f1(){}
   fn f2(){}
 };
  let got = syn ::parse2 :: < the_module ::Many< the_module ::syn ::Item > >( code ).unwrap();
  let exp = the_module ::Many :: < the_module ::syn ::Item > ::new_with( vec!
  [
   syn ::parse2 :: < syn ::Item >( qt!( fn f1(){} ) )?,
   syn ::parse2 :: < syn ::Item >( qt!( fn f2(){} ) )?,
 ]);
  assert_eq!( got, exp );

  //

  Ok( () )
 }

}

//

tests_index! {
  pair,
  many,
}