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Introduce TypeTermTable as an alternative to TermTable dedicated to types. A "type term" declaration has a type builder: an expression which creates the corresponding SNode. To access term's features on can use FeatureReferenceExpression. The new _ExpectType_ _RecoverType_ rule tables are automatically added to the user's 'types' aspect and serve to extract types from types. AssignType and RecoverType pseudo-constraints can be used to extract/assign or just extract the type, correspondingly. |
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README.md
Code Rules - Implementation Notes
Structure
The project modules are separated into several groups to separate levels of abstraction.
Logic
Define fundamental ideas used throughout the implementation, such as «data form» (a.k.a. term), logical variables, and others.
Code rules
Modules in this group define the core concepts of coderules and the logic behind it. This includes constraints, predicates, handlers, as well as code rule templates.
Constraints activation trace view for debugging the process of evaluating constraint rules.
Once finished, constraint rules produce inferred types and type errors, which are added as highlighter annotations to the editor.
Type checking
Defines a custom aspect «types», which is used to store the typing rules in the language source code.
Type checking plugin for MPS provides the actions for checking the types in a currently opened root.
Control flow
Declares only control flow aspect. All functionality is inherited from coderules language.