Module sway_core::decl_engine

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The DeclEngine allows the compiler to add a layer of separation between AST nodes and declarations.

As an interface, you can think of the DeclEngine as a mapping from DeclId to DeclWrapper. When a DeclWrapper is inserted into the DeclEngine, a DeclId is generated, which is then used to refer to the declaration.

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  • DeclEngine
    Used inside of type inference to store declarations.
  • DeclRef
    Represents the use of / syntactic reference to a declaration. A smart-wrapper around a DeclId, containing additional information about a declaration.

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