1 # This file is part of NIT ( http://www.nitlanguage.org ).
3 # Copyright 2012 Jean Privat <jean@pryen.org>
5 # Licensed under the Apache License, Version 2.0 (the "License");
6 # you may not use this file except in compliance with the License.
7 # You may obtain a copy of the License at
9 # http://www.apache.org/licenses/LICENSE-2.0
11 # Unless required by applicable law or agreed to in writing, software
12 # distributed under the License is distributed on an "AS IS" BASIS,
13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 # See the License for the specific language governing permissions and
15 # limitations under the License.
17 # Load nit source files and build the associated model
21 # FIXME split this module into submodules
22 # FIXME add missing error checks
28 private import more_collections
32 redef class ToolContext
34 var opt_path
= new OptionArray("Set include path for loaders (may be used more than once)", "-I", "--path")
36 # Option --only-metamodel
37 var opt_only_metamodel
= new OptionBool("Stop after meta-model processing", "--only-metamodel")
40 var opt_only_parse
= new OptionBool("Only proceed to parse step of loaders", "--only-parse")
42 # Option --ignore-visibility
43 var opt_ignore_visibility
= new OptionBool("Do not check, and produce errors, on visibility issues.", "--ignore-visibility")
48 option_context
.add_option
(opt_path
, opt_only_parse
, opt_only_metamodel
, opt_ignore_visibility
)
51 # The modelbuilder 1-to-1 associated with the toolcontext
52 fun modelbuilder
: ModelBuilder do return modelbuilder_real
.as(not null)
54 private var modelbuilder_real
: nullable ModelBuilder = null
56 # Combine module to make a single one if required.
57 fun make_main_module
(mmodules
: Array[MModule]): MModule
59 assert not mmodules
.is_empty
61 if mmodules
.length
== 1 then
62 mainmodule
= mmodules
.first
64 # We need a main module, so we build it by importing all modules
65 mainmodule
= new MModule(modelbuilder
.model
, null, mmodules
.first
.name
+ "-m", new Location(mmodules
.first
.location
.file
, 0, 0, 0, 0))
66 mainmodule
.is_fictive
= true
67 mainmodule
.set_imported_mmodules
(mmodules
)
72 # Run `process_mainmodule` on all phases
73 fun run_global_phases
(mmodules
: Array[MModule])
75 var mainmodule
= make_main_module
(mmodules
)
76 for phase
in phases_list
do
77 if phase
.disabled
then continue
78 phase
.process_mainmodule
(mainmodule
, mmodules
)
84 # Specific action to execute on the whole program.
85 # Called by the `ToolContext::run_global_phases`.
87 # `mainmodule` is the main module of the program.
88 # It could be an implicit module (called like the first given_mmodules).
90 # `given_modules` is the list of explicitely requested modules.
91 # from the command-line for instance.
93 # REQUIRE: `not given_modules.is_empty`
94 # REQUIRE: `(given_modules.length == 1) == (mainmodule == given_modules.first)`
97 fun process_mainmodule
(mainmodule
: MModule, given_mmodules
: SequenceRead[MModule]) do end
101 # A model builder knows how to load nit source files and build the associated model
103 # The model where new modules, classes and properties are added
106 # The toolcontext used to control the interaction with the user (getting options and displaying messages)
107 var toolcontext
: ToolContext
109 # Run phases on all loaded modules
112 var mmodules
= model
.mmodules
.to_a
113 model
.mmodule_importation_hierarchy
.sort
(mmodules
)
114 var nmodules
= new Array[AModule]
115 for mm
in mmodules
do
116 nmodules
.add
(mmodule2nmodule
[mm
])
118 toolcontext
.run_phases
(nmodules
)
120 if toolcontext
.opt_only_metamodel
.value
then
121 self.toolcontext
.info
("*** ONLY METAMODEL", 1)
126 # Instantiate a modelbuilder for a model and a toolcontext
127 # Important, the options of the toolcontext must be correctly set (parse_option already called)
128 init(model
: Model, toolcontext
: ToolContext)
131 self.toolcontext
= toolcontext
132 assert toolcontext
.modelbuilder_real
== null
133 toolcontext
.modelbuilder_real
= self
135 # Setup the paths value
136 paths
.append
(toolcontext
.opt_path
.value
)
138 var path_env
= "NIT_PATH".environ
139 if not path_env
.is_empty
then
140 paths
.append
(path_env
.split_with
(':'))
143 var nit_dir
= toolcontext
.nit_dir
144 if nit_dir
!= null then
145 var libname
= "{nit_dir}/lib"
146 if libname
.file_exists
then paths
.add
(libname
)
150 # Load a bunch of modules.
151 # `modules` can contains filenames or module names.
152 # Imported modules are automatically loaded and modelized.
153 # The result is the corresponding model elements.
154 # Errors and warnings are printed with the toolcontext.
156 # Note: class and property model element are not analysed.
157 fun parse
(modules
: Sequence[String]): Array[MModule]
160 # Parse and recursively load
161 self.toolcontext
.info
("*** PARSE ***", 1)
162 var mmodules
= new ArraySet[MModule]
164 var nmodule
= self.load_module
(a
)
165 if nmodule
== null then continue # Skip error
166 mmodules
.add
(nmodule
.mmodule
.as(not null))
169 self.toolcontext
.info
("*** END PARSE: {time1-time0} ***", 2)
171 self.toolcontext
.check_errors
173 if toolcontext
.opt_only_parse
.value
then
174 self.toolcontext
.info
("*** ONLY PARSE...", 1)
181 # Return a class named `name` visible by the module `mmodule`.
182 # Visibility in modules is correctly handled.
183 # If no such a class exists, then null is returned.
184 # If more than one class exists, then an error on `anode` is displayed and null is returned.
185 # FIXME: add a way to handle class name conflict
186 fun try_get_mclass_by_name
(anode
: ANode, mmodule
: MModule, name
: String): nullable MClass
188 var classes
= model
.get_mclasses_by_name
(name
)
189 if classes
== null then
193 var res
: nullable MClass = null
194 for mclass
in classes
do
195 if not mmodule
.in_importation
<= mclass
.intro_mmodule
then continue
196 if not mmodule
.is_visible
(mclass
.intro_mmodule
, mclass
.visibility
) then continue
200 error
(anode
, "Ambigous class name '{name}'; conflict between {mclass.full_name} and {res.full_name}")
207 # Return a property named `name` on the type `mtype` visible in the module `mmodule`.
208 # Visibility in modules is correctly handled.
209 # Protected properties are returned (it is up to the caller to check and reject protected properties).
210 # If no such a property exists, then null is returned.
211 # If more than one property exists, then an error on `anode` is displayed and null is returned.
212 # FIXME: add a way to handle property name conflict
213 fun try_get_mproperty_by_name2
(anode
: ANode, mmodule
: MModule, mtype
: MType, name
: String): nullable MProperty
215 var props
= self.model
.get_mproperties_by_name
(name
)
216 if props
== null then
220 var cache
= self.try_get_mproperty_by_name2_cache
[mmodule
, mtype
, name
]
221 if cache
!= null then return cache
223 var res
: nullable MProperty = null
224 var ress
: nullable Array[MProperty] = null
225 for mprop
in props
do
226 if not mtype
.has_mproperty
(mmodule
, mprop
) then continue
227 if not mmodule
.is_visible
(mprop
.intro_mclassdef
.mmodule
, mprop
.visibility
) then continue
229 # new-factories are invisible outside of the class
230 if mprop
isa MMethod and mprop
.is_new
and (not mtype
isa MClassType or mprop
.intro_mclassdef
.mclass
!= mtype
.mclass
) then
239 # Two global properties?
240 # First, special case for init, keep the most specific ones
241 if res
isa MMethod and mprop
isa MMethod and res
.is_init
and mprop
.is_init
then
242 var restype
= res
.intro_mclassdef
.bound_mtype
243 var mproptype
= mprop
.intro_mclassdef
.bound_mtype
244 if mproptype
.is_subtype
(mmodule
, null, restype
) then
245 # found a most specific constructor, so keep it
251 # Ok, just keep all prop in the ress table
253 ress
= new Array[MProperty]
260 if ress
!= null and res
isa MMethod and res
.is_init
then
261 # special case forinit again
262 var restype
= res
.intro_mclassdef
.bound_mtype
263 var ress2
= new Array[MProperty]
265 var mproptype
= mprop
.intro_mclassdef
.bound_mtype
266 if not restype
.is_subtype
(mmodule
, null, mproptype
) then
268 else if not mprop
isa MMethod or not mprop
.is_init
then
272 if ress2
.is_empty
then
281 assert ress
.length
> 1
282 var s
= new Array[String]
283 for mprop
in ress
do s
.add mprop
.full_name
284 self.error
(anode
, "Ambigous property name '{name}' for {mtype}; conflict between {s.join(" and ")}")
287 self.try_get_mproperty_by_name2_cache
[mmodule
, mtype
, name
] = res
291 private var try_get_mproperty_by_name2_cache
= new HashMap3[MModule, MType, String, nullable MProperty]
294 # Alias for try_get_mproperty_by_name2(anode, mclassdef.mmodule, mclassdef.mtype, name)
295 fun try_get_mproperty_by_name
(anode
: ANode, mclassdef
: MClassDef, name
: String): nullable MProperty
297 return try_get_mproperty_by_name2
(anode
, mclassdef
.mmodule
, mclassdef
.bound_mtype
, name
)
300 # The list of directories to search for top level modules
301 # The list is initially set with :
302 # * the toolcontext --path option
303 # * the NIT_PATH environment variable
304 # * `toolcontext.nit_dir`
305 # Path can be added (or removed) by the client
306 var paths
= new Array[String]
308 # Like (an used by) `get_mmodule_by_name` but just return the ModulePath
309 private fun search_mmodule_by_name
(anode
: ANode, mgroup
: nullable MGroup, name
: String): nullable ModulePath
311 # First, look in groups
314 var dirname
= c
.filepath
315 if dirname
== null then break # virtual group
316 if dirname
.has_suffix
(".nit") then break # singleton project
318 # Second, try the directory to find a file
319 var try_file
= dirname
+ "/" + name
+ ".nit"
320 if try_file
.file_exists
then
321 var res
= self.identify_file
(try_file
.simplify_path
)
326 # Third, try if the requested module is itself a group
327 try_file
= dirname
+ "/" + name
+ "/" + name
+ ".nit"
328 if try_file
.file_exists
then
329 var res
= self.identify_file
(try_file
.simplify_path
)
337 # Look at some known directories
338 var lookpaths
= self.paths
340 # Look in the directory of the group project also (even if not explicitely in the path)
341 if mgroup
!= null then
342 # path of the root group
343 var dirname
= mgroup
.mproject
.root
.filepath
344 if dirname
!= null then
345 dirname
= dirname
.join_path
("..").simplify_path
346 if not lookpaths
.has
(dirname
) and dirname
.file_exists
then
347 lookpaths
= lookpaths
.to_a
348 lookpaths
.add
(dirname
)
353 var candidate
= search_module_in_paths
(anode
.hot_location
, name
, lookpaths
)
355 if candidate
== null then
356 if mgroup
!= null then
357 error
(anode
, "Error: cannot find module {name} from {mgroup.name}. tried {lookpaths.join(", ")}")
359 error
(anode
, "Error: cannot find module {name}. tried {lookpaths.join(", ")}")
366 # Get a module by its short name; if required, the module is loaded, parsed and its hierarchies computed.
367 # If `mgroup` is set, then the module search starts from it up to the top level (see `paths`);
368 # if `mgroup` is null then the module is searched in the top level only.
369 # If no module exists or there is a name conflict, then an error on `anode` is displayed and null is returned.
370 fun get_mmodule_by_name
(anode
: ANode, mgroup
: nullable MGroup, name
: String): nullable MModule
372 var path
= search_mmodule_by_name
(anode
, mgroup
, name
)
373 if path
== null then return null # Forward error
374 var res
= self.load_module
(path
.filepath
)
375 if res
== null then return null # Forward error
376 return res
.mmodule
.as(not null)
379 # Search a module `name` from path `lookpaths`.
380 # If found, the path of the file is returned
381 private fun search_module_in_paths
(location
: nullable Location, name
: String, lookpaths
: Collection[String]): nullable ModulePath
383 var candidate
: nullable String = null
384 for dirname
in lookpaths
do
385 var try_file
= (dirname
+ "/" + name
+ ".nit").simplify_path
386 if try_file
.file_exists
then
387 if candidate
== null then
389 else if candidate
!= try_file
then
390 # try to disambiguate conflicting modules
391 var abs_candidate
= module_absolute_path
(candidate
)
392 var abs_try_file
= module_absolute_path
(try_file
)
393 if abs_candidate
!= abs_try_file
then
394 toolcontext
.error
(location
, "Error: conflicting module file for {name}: {candidate} {try_file}")
398 try_file
= (dirname
+ "/" + name
+ "/" + name
+ ".nit").simplify_path
399 if try_file
.file_exists
then
400 if candidate
== null then
402 else if candidate
!= try_file
then
403 # try to disambiguate conflicting modules
404 var abs_candidate
= module_absolute_path
(candidate
)
405 var abs_try_file
= module_absolute_path
(try_file
)
406 if abs_candidate
!= abs_try_file
then
407 toolcontext
.error
(location
, "Error: conflicting module file for {name}: {candidate} {try_file}")
412 if candidate
== null then return null
413 return identify_file
(candidate
)
416 # cache for `identify_file` by realpath
417 private var identified_files
= new HashMap[String, nullable ModulePath]
419 # Identify a source file
420 # Load the associated project and groups if required
421 private fun identify_file
(path
: String): nullable ModulePath
423 # special case for not a nit file
424 if path
.file_extension
!= "nit" then
425 # search in known -I paths
426 var res
= search_module_in_paths
(null, path
, self.paths
)
427 if res
!= null then return res
429 # Found nothins? maybe it is a group...
431 if path
.file_exists
then
432 var mgroup
= get_mgroup
(path
)
433 if mgroup
!= null then
434 var owner_path
= mgroup
.filepath
.join_path
(mgroup
.name
+ ".nit")
435 if owner_path
.file_exists
then candidate
= owner_path
439 if candidate
== null then
440 toolcontext
.error
(null, "Error: cannot find module `{path}`.")
446 # Fast track, the path is already known
447 var pn
= path
.basename
(".nit")
448 var rp
= module_absolute_path
(path
)
449 if identified_files
.has_key
(rp
) then return identified_files
[rp
]
452 var mgrouppath
= path
.join_path
("..").simplify_path
453 var mgroup
= get_mgroup
(mgrouppath
)
455 if mgroup
== null then
457 var mproject
= new MProject(pn
, model
)
458 mgroup
= new MGroup(pn
, mproject
, null) # same name for the root group
459 mgroup
.filepath
= path
460 mproject
.root
= mgroup
461 toolcontext
.info
("found project `{pn}` at {path}", 2)
464 var res
= new ModulePath(pn
, path
, mgroup
)
465 mgroup
.module_paths
.add
(res
)
467 identified_files
[rp
] = res
472 private var mgroups
= new HashMap[String, nullable MGroup]
474 # return the mgroup associated to a directory path
475 # if the directory is not a group null is returned
476 private fun get_mgroup
(dirpath
: String): nullable MGroup
478 var rdp
= module_absolute_path
(dirpath
)
479 if mgroups
.has_key
(rdp
) then
483 # Hack, a group is determined by:
484 # * the presence of a honomymous nit file
485 # * the fact that the directory is named `src`
486 var pn
= rdp
.basename
(".nit")
487 var mp
= dirpath
.join_path
(pn
+ ".nit").simplify_path
489 var dirpath2
= dirpath
490 if not mp
.file_exists
then
492 # With a src directory, the group name is the name of the parent directory
493 dirpath2
= rdp
.dirname
494 pn
= dirpath2
.basename
("")
500 # check parent directory
501 var parentpath
= dirpath
.join_path
("..").simplify_path
502 var parent
= get_mgroup
(parentpath
)
505 if parent
== null then
506 # no parent, thus new project
507 var mproject
= new MProject(pn
, model
)
508 mgroup
= new MGroup(pn
, mproject
, null) # same name for the root group
509 mproject
.root
= mgroup
510 toolcontext
.info
("found project `{mproject}` at {dirpath}", 2)
512 mgroup
= new MGroup(pn
, parent
.mproject
, parent
)
513 toolcontext
.info
("found sub group `{mgroup.full_name}` at {dirpath}", 2)
515 var readme
= dirpath2
.join_path
("README.md")
516 if not readme
.file_exists
then readme
= dirpath2
.join_path
("README")
517 if readme
.file_exists
then
519 var s
= new IFStream.open
(readme
)
521 mdoc
.content
.add
(s
.read_line
)
524 mdoc
.original_mentity
= mgroup
526 mgroup
.filepath
= dirpath
527 mgroups
[rdp
] = mgroup
531 # Transform relative paths (starting with '../') into absolute paths
532 private fun module_absolute_path
(path
: String): String do
533 return getcwd
.join_path
(path
).simplify_path
536 # Try to load a module AST using a path.
537 # Display an error if there is a problem (IO / lexer / parser) and return null
538 fun load_module_ast
(filename
: String): nullable AModule
540 if filename
.file_extension
!= "nit" then
541 self.toolcontext
.error
(null, "Error: file {filename} is not a valid nit module.")
544 if not filename
.file_exists
then
545 self.toolcontext
.error
(null, "Error: file {filename} not found.")
549 self.toolcontext
.info
("load module {filename}", 2)
552 var file
= new IFStream.open
(filename
)
553 var lexer
= new Lexer(new SourceFile(filename
, file
))
554 var parser
= new Parser(lexer
)
555 var tree
= parser
.parse
558 # Handle lexer and parser error
559 var nmodule
= tree
.n_base
560 if nmodule
== null then
561 var neof
= tree
.n_eof
562 assert neof
isa AError
563 error
(neof
, neof
.message
)
570 # Try to load a module and its imported modules using a path.
571 # Display an error if there is a problem (IO / lexer / parser / importation) and return null
572 # Note: usually, you do not need this method, use `get_mmodule_by_name` instead.
573 fun load_module
(filename
: String): nullable AModule
575 # Look for the module
576 var file
= identify_file
(filename
)
577 if file
== null then return null # forward error
579 # Already known and loaded? then return it
580 var mmodule
= file
.mmodule
581 if mmodule
!= null then
582 return mmodule2nmodule
[mmodule
]
586 var nmodule
= load_module_ast
(file
.filepath
)
587 if nmodule
== null then return null # forward error
589 # build the mmodule and load imported modules
590 mmodule
= build_a_mmodule
(file
.mgroup
, file
.name
, nmodule
)
592 if mmodule
== null then return null # forward error
594 # Update the file information
595 file
.mmodule
= mmodule
597 # Load imported module
598 build_module_importation
(nmodule
)
603 # Injection of a new module without source.
604 # Used by the interpreted
605 fun load_rt_module
(parent
: nullable MModule, nmodule
: AModule, mod_name
: String): nullable AModule
610 if parent
!= null then mgroup
= parent
.mgroup
611 var mmodule
= new MModule(model
, mgroup
, mod_name
, nmodule
.location
)
612 nmodule
.mmodule
= mmodule
613 nmodules
.add
(nmodule
)
614 self.mmodule2nmodule
[mmodule
] = nmodule
616 if parent
!= null then
617 var imported_modules
= new Array[MModule]
618 imported_modules
.add
(parent
)
619 mmodule
.set_visibility_for
(parent
, intrude_visibility
)
620 mmodule
.set_imported_mmodules
(imported_modules
)
622 build_module_importation
(nmodule
)
628 # Visit the AST and create the `MModule` object
629 private fun build_a_mmodule
(mgroup
: nullable MGroup, mod_name
: String, nmodule
: AModule): nullable MModule
631 # Check the module name
632 var decl
= nmodule
.n_moduledecl
634 #warning(nmodule, "Warning: Missing 'module' keyword") #FIXME: NOT YET FOR COMPATIBILITY
636 var decl_name
= decl
.n_name
.n_id
.text
637 if decl_name
!= mod_name
then
638 error
(decl
.n_name
, "Error: module name missmatch; declared {decl_name} file named {mod_name}")
643 var mmodule
= new MModule(model
, mgroup
, mod_name
, nmodule
.location
)
644 nmodule
.mmodule
= mmodule
645 nmodules
.add
(nmodule
)
646 self.mmodule2nmodule
[mmodule
] = nmodule
649 var ndoc
= decl
.n_doc
651 var mdoc
= ndoc
.to_mdoc
653 mdoc
.original_mentity
= mmodule
655 advice
(decl
, "missing-doc", "Documentation warning: Undocumented module `{mmodule}`")
662 # Analysis the module importation and fill the module_importation_hierarchy
663 private fun build_module_importation
(nmodule
: AModule)
665 if nmodule
.is_importation_done
then return
666 nmodule
.is_importation_done
= true
667 var mmodule
= nmodule
.mmodule
.as(not null)
669 var imported_modules
= new Array[MModule]
670 for aimport
in nmodule
.n_imports
do
672 if not aimport
isa AStdImport then
675 var mgroup
= mmodule
.mgroup
676 if aimport
.n_name
.n_quad
!= null then mgroup
= null # Start from top level
677 for grp
in aimport
.n_name
.n_path
do
678 var path
= search_mmodule_by_name
(grp
, mgroup
, grp
.text
)
679 if path
== null then return # Skip error
682 var mod_name
= aimport
.n_name
.n_id
.text
683 var sup
= self.get_mmodule_by_name
(aimport
.n_name
, mgroup
, mod_name
)
684 if sup
== null then continue # Skip error
685 aimport
.mmodule
= sup
686 imported_modules
.add
(sup
)
687 var mvisibility
= aimport
.n_visibility
.mvisibility
688 if mvisibility
== protected_visibility
then
689 error
(aimport
.n_visibility
, "Error: only properties can be protected.")
692 if sup
== mmodule
then
693 error
(aimport
.n_name
, "Error: Dependency loop in module {mmodule}.")
695 if sup
.in_importation
< mmodule
then
696 error
(aimport
.n_name
, "Error: Dependency loop between modules {mmodule} and {sup}.")
699 mmodule
.set_visibility_for
(sup
, mvisibility
)
702 var mod_name
= "standard"
703 var sup
= self.get_mmodule_by_name
(nmodule
, null, mod_name
)
704 if sup
!= null then # Skip error
705 imported_modules
.add
(sup
)
706 mmodule
.set_visibility_for
(sup
, public_visibility
)
709 self.toolcontext
.info
("{mmodule} imports {imported_modules.join(", ")}", 3)
710 mmodule
.set_imported_mmodules
(imported_modules
)
712 # TODO: Correctly check for useless importation
714 var directs
= mmodule
.in_importation
.direct_greaters
715 for nim
in nmodule
.n_imports
do
716 if not nim
isa AStdImport then continue
718 if im
== null then continue
719 if directs
.has
(im
) then continue
720 # This generates so much noise that it is simpler to just comment it
721 #warning(nim, "Warning: possible useless importation of {im}")
725 # All the loaded modules
726 var nmodules
= new Array[AModule]
728 # Register the nmodule associated to each mmodule
729 # FIXME: why not refine the `MModule` class with a nullable attribute?
730 var mmodule2nmodule
= new HashMap[MModule, AModule]
732 # Helper function to display an error on a node.
733 # Alias for `self.toolcontext.error(n.hot_location, text)`
734 fun error
(n
: ANode, text
: String)
736 self.toolcontext
.error
(n
.hot_location
, text
)
739 # Helper function to display a warning on a node.
740 # Alias for: `self.toolcontext.warning(n.hot_location, text)`
741 fun warning
(n
: ANode, tag
, text
: String)
743 self.toolcontext
.warning
(n
.hot_location
, tag
, text
)
746 # Helper function to display an advice on a node.
747 # Alias for: `self.toolcontext.advice(n.hot_location, text)`
748 fun advice
(n
: ANode, tag
, text
: String)
750 self.toolcontext
.advice
(n
.hot_location
, tag
, text
)
753 # Force to get the primitive method named `name` on the type `recv` or do a fatal error on `n`
754 fun force_get_primitive_method
(n
: nullable ANode, name
: String, recv
: MClass, mmodule
: MModule): MMethod
756 var res
= mmodule
.try_get_primitive_method
(name
, recv
)
759 if n
!= null then l
= n
.hot_location
760 self.toolcontext
.fatal_error
(l
, "Fatal Error: {recv} must have a property named {name}.")
767 # placeholder to a module file identified but not always loaded in a project
768 private class ModulePath
769 # The name of the module
770 # (it's the basename of the filepath)
773 # The human path of the module
776 # The group (and the project) of the possible module
779 # The loaded module (if any)
780 var mmodule
: nullable MModule = null
782 redef fun to_s
do return filepath
786 # modules paths associated with the group
787 private var module_paths
= new Array[ModulePath]
790 redef class AStdImport
791 # The imported module once determined
792 var mmodule
: nullable MModule = null
796 # The associated MModule once build by a `ModelBuilder`
797 var mmodule
: nullable MModule
798 # Flag that indicate if the importation is already completed
799 var is_importation_done
: Bool = false
802 redef class AVisibility
803 # The visibility level associated with the AST node class
804 fun mvisibility
: MVisibility is abstract
806 redef class AIntrudeVisibility
807 redef fun mvisibility
do return intrude_visibility
809 redef class APublicVisibility
810 redef fun mvisibility
do return public_visibility
812 redef class AProtectedVisibility
813 redef fun mvisibility
do return protected_visibility
815 redef class APrivateVisibility
816 redef fun mvisibility
do return private_visibility
820 private var mdoc_cache
: nullable MDoc
824 if res
!= null then return res
826 for c
in n_comment
do
828 if text
.length
< 2 then
832 assert text
.chars
[0] == '#'
833 if text
.chars
[1] == ' ' then
834 text
= text
.substring_from
(2) # eat starting `#` and space
836 text
= text
.substring_from
(1) # eat atarting `#` only
838 if text
.chars
.last
== '\n' then text
= text
.substring
(0, text
.length-1
) # drop \n
839 res
.content
.add
(text
)