1MakeMethods::Docs::ToDoU(s3e)r Contributed Perl DocumentaMtaikoenMethods::Docs::ToDo(3)
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6 Class::MakeMethods::Docs::ToDo - Ideas, problems, and suggestions
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9 There are lots of things that could be done to improve this module.
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12 Issues about the distribution and supporting files, rather than the
13 code:
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15 Documentation
16 • Make sure that the documentation is broken up into appropriately-
17 sized chunks, and that people will know which section to look at.
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19 • As user questions arrive, add the answers as documentation points
20 or examples.
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22 • Assemble annotated examples and tutorials, and either link to or
23 distribute them.
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25 • Finish overhauling Template documentation.
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27 • Include Global and InsideOut uses in the EXAMPLES section
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29 • Template Internals: Finish documenting disk-based meta-method code-
30 caching.
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32 Tests
33 • Use Devel::Coverage to measure test coverage, and fill in missing
34 cases.
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36 • Finish tests for Standard and Composite modules.
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39 • It does not appear to be possible to assign subroutine names to
40 closures within Perl. As a result, debugging output from Carp and
41 similar sources will show all generated methods as "ANON()" rather
42 than "YourClass::methodname()".
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44 UPDATE: There now seem to be fixes for this which should be
45 integrated: See the new Sub::Name module and
46 http://perlmonks.org/index.pl?node_id=304883
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48 • For scalar methods (and others) it would be nice to have a simple
49 bounds-checking interface to approve or reject (with an exception)
50 new values that were passed in.
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52 As pointed out by Terrence Brannon, the right interface to adopt is
53 probably that of Attribute::Types:
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55 use Class::MakeMethods::Standard::Hash (
56 'scalar' => [ 'count' => { TYPE => 'INTEGER' } ],
57 'scalar' => [ 'name' => { TYPE => qr/^[A-Z]\w*$/ } ],
58 'scalar' => [ 'account' => { TYPE => &checksum_account_number } ]
59 );
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61 • Improve use of _diagnostic hooks for debugging. Add various "(Q)"
62 debug diagnostics.
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64 • Finish building Inheritable array and object accessors.
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66 • Finish building Composite::* packages.
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68 • Resolve DESTROY-time issues with Standard::Inheritable,
69 Composite::Inheritable, and Template::InsideOut.
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71 • Add slice and splice functionality to Standard::*:hash and
72 Composite::*:hash.
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75 Template::Generic
76 • Allow untyped object accesors if "class" attribute is not set.
77 (Suggested in Jan-01 NY Perl Seminar discussion.)
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79 • Standardize naming templates for array, hash, other method types.
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81 Deprecate verb_x methods? Or at last make them consistently
82 available both ways.
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84 Make list methods consistent with hash_of_lists methods, in action,
85 and in name (x_verb). Also for others (e.g., set_ clear_ boolean)
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87 • Should default object template provide auto-create behavior on
88 ->get()?
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90 • Generalize the "Generic:scalar -init_and_get" interface to support
91 memoizing values for other accessor types.
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93 • Consider adding hash each and array iterator methods, using a
94 closure to provide iteration.
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96 • Add support for tied arrays & scalars, a la tiedhash
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98 • Add string_multiple_index.
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100 • Extend index methods to support weak indexes with WeakRef. Perhaps
101 just have it accept a hash ref to use as the index, and then allow
102 people to pass in tied hashes?
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104 • Maybe make private or protected method croak if they were called by
105 a method_init method which was called by an outside package.
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107 Not entirely clear what the right semantics or security precautions
108 are here...
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110 Template::Generic Subclasses
111 • Finish building code_or_scalar meta-method.
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113 • Finish building Class::MakeMethods::ClassInherit subclass.
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115 Need to work out how to capture changes for non-scalar values. For
116 example, if a subclass inherits an array accessor and then pops it,
117 is there some way to provide them with copy-on-write?
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119 • Add enumerated string/number type.
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121 Provide helper methods with map of associated values (ex $o->port =
122 80 ... $o->port_readable eq 'HTTP' ). Cf. code for earlier
123 unpublished 'lookup' method type.
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125 • For StructBuiltin:
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127 Add -fatal flag to die if core func returns false / undef Add call
128 method to recall method with alternative arguments. Add -nocall
129 flag to not call core func on new.
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131 • Replace ClassName:static_hash_classname with Class:indexed_string.
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133 Template Internals
134 • Figure out which modules, if any, should actually be using
135 AutoLoader. Probably just Template::Generic?
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137 • Give users a way to do meta-method code-caching in Perl library
138 hierarchy, rather than in /tmp/auto or other user-specified
139 directory..
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141 Provide mechanism for pre-generating these at install time.
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143 Perhaps load these via do, rather than open/read/eval?
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145 Perhaps pre-generate expanded libs with all of the -imports
146 resolved?
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148 • Support generating code files and loading them as needed.
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150 This would be similar to Class::Classgen, except that we'd do the
151 generation at run-time the first time it was required, rather than
152 in a separate pass.
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154 For example, given the following declaration:
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156 package Foo::Bar;
157 Class::MakeMethods::Template::Hash->import(-codecache=>'auto', scalar=>'foo');
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159 We should be able to write out the following file:
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161 cat 'auto/Foo/Bar/methods-line-2.pl'
162 # NOTE: Generated for Foo::Bar by the Class::MakeMethods module.
163 # Changes made here will be lost when Foo::Bar is modified.
164 package Foo::Bar;
165 sub foo {
166 my $self = shift;
167 if ( scalar @_ ) {
168 $self->{'foo'} = shift();
169 }
170 $self->{'foo'}
171 }
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173 Then on subsequent uses, we can just re-load the generated code:
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175 require "auto/Foo/Bar/methods-line-2.pl";
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177 To do this, we need to:
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179 • Provide an option to select this if desired; maybe ...
180 import('-cache' => 'auto/', ...)?
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182 • Figure out which directory we can/should write into.
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184 • Re-evaluate the textual code templates, without generating the
185 closures. Substitute in any _STATIC_ATTR_ values. Make other
186 _ATTR_ values point to some public lookup table or package
187 scalar.
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189 • Notice if the source file (or Class::MakeMethods modules) has
190 been updated more recently than the generated file.
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193 See Class::MakeMethods for general information about this distribution.
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197perl v5.36.0 2023-01-20 MakeMethods::Docs::ToDo(3)