[interop] Add support for importing and exporting declarations, as well as multi-file output #418
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# Conflicts: # web_generator/lib/src/interop_gen/transform/transformer.dart # web_generator/lib/src/js/typescript.types.dart
- added import support - added gen of code inside file in the case of non multi-import - added support for multiple file generation - using `TransformManager` for managing transformation of code
nikeokoronkwo
changed the title
# Conflicts: # web_generator/lib/src/ast/declarations.dart # web_generator/lib/src/interop_gen/transform.dart # web_generator/lib/src/interop_gen/transform/transformer.dart # web_generator/lib/src/js/typescript.types.dart
srujzs
reviewed
Jul 22, 2025
web_generator/test/integration/interop_gen/project/input/a.d.ts
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web_generator/test/integration/interop_gen/import_export_input.d.ts
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Fixes #378
Fixes #387
This PR is for adding support for multiple file processing, with support for exporting and importing declarations even between files.
It makes use of a
TransformManagerwhich transforms various files and uses aProgramMapto memoize and keep track of dependencies across files, which helps in reducing expensive transform calls to declarations already referenced from other files.The type checker helps to resolve types and imports, as well as resolve import declarations. Import declarations are not parsed by default so that we know we are only making use of imports actually referenced in code (which is helpful in single outputs for instance).
(The program map makes use of
package:pathsPathMapto easily work with paths for files and declarations, as the TS output may resolve either to a relative import in the file, or may reference the declaration externally as an absolute path).Imported declarations are declared as
ReferredTypes with aurlproperty, which allows for referencing the normalExports are rewritten based on how they are specified, and are processed after transformation (since they are separate declarations and may be referenced as they are.
Imports are processed depending on the presence of the file:
TODOs