macro_tools 0.84.0

Tools for writing procedural macroses.
Documentation 
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use macro_tools ::
{
  syn, quote,
  generic_params :: {GenericsRef},
};
use syn ::parse_quote;

#[ test ]
fn test_generics_ref_std() 
{
  // Test Matrix Rows: T5.6, T5.8, T5.10, T5.12
  let mut generics_std: syn ::Generics = parse_quote! { < 'a, T, const N: usize > };
  generics_std.where_clause = Some(parse_quote! { where T: 'a + core ::fmt ::Display, T: core ::fmt ::Debug });
  let enum_name: syn ::Ident = parse_quote! { MyEnum };
  let generics_ref = GenericsRef ::new(&generics_std);

  // T5.6
  let expected_impl = quote! { < 'a, T, const N: usize > };
  let got_impl = generics_ref.impl_generics_tokens_if_any();
  assert_eq!(got_impl.to_string(), expected_impl.to_string());

  // T5.8
  let expected_ty = quote! { < 'a, T, N > };
  let got_ty = generics_ref.ty_generics_tokens_if_any();
  assert_eq!(got_ty.to_string(), expected_ty.to_string());

  // T5.10
  let expected_where = quote! { where T: 'a + core ::fmt ::Display, T: core ::fmt ::Debug };
  let got_where = generics_ref.where_clause_tokens_if_any();
  assert_eq!(got_where.to_string(), expected_where.to_string());

  // T5.12
  let expected_path = quote! { MyEnum < 'a, T, N > };
  let got_path = generics_ref.type_path_tokens_if_any(&enum_name);
  assert_eq!(got_path.to_string(), expected_path.to_string());
}

#[ test ]
fn test_generics_ref_empty() 
{
  // Test Matrix Rows: T5.7, T5.9, T5.11, T5.13
  let generics_empty: syn ::Generics = parse_quote! {};
  let enum_name: syn ::Ident = parse_quote! { MyEnum };
  let generics_ref = GenericsRef ::new(&generics_empty);

  // T5.7
  let expected_impl = quote! {};
  let got_impl = generics_ref.impl_generics_tokens_if_any();
  assert_eq!(got_impl.to_string(), expected_impl.to_string());

  // T5.9
  let expected_ty = quote! {};
  let got_ty = generics_ref.ty_generics_tokens_if_any();
  assert_eq!(got_ty.to_string(), expected_ty.to_string());

  // T5.11
  let expected_where = quote! {};
  let got_where = generics_ref.where_clause_tokens_if_any();
  assert_eq!(got_where.to_string(), expected_where.to_string());

  // T5.13
  let expected_path = quote! { MyEnum };
  let got_path = generics_ref.type_path_tokens_if_any(&enum_name);
  assert_eq!(got_path.to_string(), expected_path.to_string());
}