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40 lines
1.4 KiB
Plaintext
40 lines
1.4 KiB
Plaintext
{0 The scope language }
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This representation is the third in the compilation chain
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(see {{: index.html#architecture} Architecture}). Its main difference
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with the previous {{: desugared.html} desugared representation} is that inside
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a scope, the definitions are ordered according to their computational
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dependency order, and each definition is a {!Shared_ast.EDefault} tree
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instead of a flat list of rules.
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The module describing the abstract syntax tree is:
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{!modules: Scopelang.Ast}
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Printing helpers can be found in {!module: Scopelang.Print}.
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This intermediate representation corresponds to the scope language
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presented in the {{: https://github.com/CatalaLang/catala/raw/master/doc/formalization/formalization.pdf}
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Catala formalization}.
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{1 Translation to the default calculus}
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The translation from the scope language to the
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{{: dcalc.html} default calculus} involves three big features:
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{ol
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{li Translating structures and enums into simpler sum and product types}
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{li Build thunked signatures for the scopes as functions }
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{li Transform the list of scopes into a program}
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}
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1 and 3 involve computing dependency graphs for respectively the structs and
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enums on one hand, and the inter-scope dependencies on the other hand. Both can
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be found in {!module:Scopelang.Dependency}, while {!module:Dcalc.From_scopelang}
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is mostly responsible for 2.
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Related modules:
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{!modules: Scopelang.Dependency Dcalc.From_scopelang}
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