Documentation

Add a constant to the signature. Lifts the definition to top level.

A combination of addConstant and defaultDefn. The Language does not need to be supplied.

Set termination info of a defined function symbol.

Set CompiledClauses of a defined function symbol.

Set SplitTree of a defined function symbol.

Modify the clauses of a function.

Lifts clauses to the top-level and adds them to definition. Also adjusts the funCopatternLHS field if necessary.

Add a compiler pragma `{-# COMPILE backend name text #-}`

Add a section to the signature.

The current context will be stored as the cumulative module parameters for this section.

Sets the checkpoint for the given module to the current checkpoint.

Get a section.

Why Maybe? The reason is that we look up all prefixes of a module to compute number of parameters, and for hierarchical top-level modules, A.B.C say, A and A.B do not exist.

Lookup a section telescope.

If it doesn't exist, like in hierarchical top-level modules, the section telescope is empty.

Add display forms for a name f copied by a module application. Essentially if f can reduce to

λ xs → A.B.C.f vs

by unfolding module application copies (defCopy), then we add a display form

A.B.C.f vs ==> f xs

Module application (followed by module parameter abstraction).

Add a display form to a definition (could be in this or imported signature).

Find all names used (recursively) by display forms of a given name.

Check if a display form is looping.

Can be called on either a (co)datatype, a record type or a (co)constructor.

Does the given constructor come from a single-constructor type?

Precondition: The name has to refer to a constructor.

Signature lookup errors.

Standard eliminator for SigError.

The computation getConstInfo sometimes tweaks the returned Definition, depending on the current Language and the Language of the Definition. This variant of getConstInfo does not perform any tweaks.

Get the original name of the projection (the current one could be from a module application).

Look up the polarity of a definition.

Look up polarity of a definition and compose with polarity represented by Comparison.

Set the polarity of a definition.

Look up the forced arguments of a definition.

Get argument occurrence info for argument i of definition d (never fails).

Sets the defArgOccurrences for the given identifier (which should already exist in the signature).

Returns a list of length conArity. If no erasure analysis has been performed yet, this will be a list of Falses.

add data constructors to a datatype

Get the mutually recursive identifiers of a symbol from the signature.

Get the mutually recursive identifiers from a Definition.

Set the mutually recursive identifiers.

Check whether two definitions are mutually recursive.

A functiondatarecord definition is nonRecursive if it is not even mutually recursive with itself.

Get the number of parameters to the current module.

Compute the number of free variables of a defined name. This is the sum of number of parameters shared with the current module and the number of anonymous variables (if the name comes from a let-bound module).

Compute the context variables to apply a definition to.

We have to insert the module telescope of the common prefix of the current module and the module where the definition comes from. (Properly raised to the current context.)

Example: module M₁ Γ where module M₁ Δ where f = ... module M₃ Θ where ... M₁.M₂.f [insert Γ raised by Θ]

Unless all variables in the context are module parameters, create a fresh module to capture the non-module parameters. Used when unquoting to make sure generated definitions work properly.

Instantiate a closed definition with the correct part of the current context.

Give the abstract view of a definition.

Enter abstract mode. Abstract definition in the current module are transparent.

Not in abstract mode. All abstract definitions are opaque.

Ignore abstract mode. All abstract definitions are transparent.

Enter concrete or abstract mode depending on whether the given identifier is concrete or abstract.

Check whether a name might have to be treated abstractly (either if we're inAbstractMode or it's not a local name). Returns true for things not declared abstract as well, but for those makeAbstract will have no effect.

Andreas, 2015-07-01: If the current module is a weak suffix of the identifier module, we can see through its abstract definition if we are abstract. (Then treatAbstractly' returns False).

If I am not mistaken, then we cannot see definitions in the where block of an abstract function from the perspective of the function, because then the current module is a strict prefix of the module of the local identifier. This problem is fixed by removing trailing anonymous module name parts (underscores) from both names.

Get type of a constant, instantiated to the current context.

Get relevance of a constant.

Get modality of a constant.

The number of dropped parameters for a definition. 0 except for projection(-like) functions and constructors.

Is it the name of a record projection?

Is it a function marked STATIC?

Is it a function marked INLINE?

Returns True if we are dealing with a proper projection, i.e., not a projection-like function nor a record field value (projection applied to argument).

Number of dropped initial arguments of a projection(-like) function.

Check whether a definition uses copatterns.

Apply a function f to its first argument, producing the proper postfix projection if f is a projection.