Module builtin_methods 

The single owner of builtin value methods.

BUILTIN_METHODS names every method a builtin receiver supports, with its signature, whether it mutates its receiver, and its reference doc. REMOVED_METHODS records retired spellings and how to repair them. The VM and portable-kernel dispatch tables are drift-checked against these rows, and the typechecker, linter, language server, and generated docs derive from them.

Structs

MethodDescriptor

One builtin value method: the single owner of its name, signature, effect, and reference documentation.

RemovedMethod

A method spelling that no longer exists on a receiver.

Enums

MethodEffect

Whether calling the method changes its receiver.

MethodMigration

How source written against a removed method spelling is repaired.

MethodReceiver

The builtin value kind a method is dispatched on.

Constants

COPY_COUNTERPARTS

Mutating list methods and the copy-returning method that computes the same result as a new value.

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REFERENCE_END_MARKER

Statics

BUILTIN_METHODS

REMOVED_METHODS

Functions

copy_counterpart

The copy-returning counterpart of a mutating method (sorted for sort).

in_place_counterpart

The mutating counterpart of a copy-returning method (sort for sorted).

is_method_name

True when some builtin receiver has a method called name.

is_mutable_place

A place a mutating method can rewrite: a binding, or a property or subscript path rooted at one.

is_mutating_method_name

True when some builtin receiver has a mutating method called name.

is_pure_on_every_receiver

True when some builtin receiver has a pure method called name and no receiver has a mutating method of that name, so discarding the call’s result can never be intended.

method

The method name on receiver, if it exists.

method_names

Method names on receiver, in table order.

methods_of

Every method on receiver, in table order.

mutating_call_place

When node is place.method(...) naming a mutating builtin method, the receiver place it may rewrite. This is syntactic: a user struct method that happens to share the name also reports its receiver, which keeps write analyses conservative.

place_root

The binding at the root of a place expression.

removed_method

The retired spelling name on receiver, if it was removed.

removed_method_on_any_receiver

Every removed row for a retired spelling that no live method on any receiver still uses, so a call to it is stale whatever the receiver’s type. count is not one (iterators keep it); to_lower is. Empty otherwise.

render_reference

Markdown tables for every builtin receiver, without the region markers.

returns_generic

True when the method’s result type mentions one of its generic parameters, so the result depends on the receiver or the arguments.

splice_reference

Replace the generated region of document with a fresh rendering. None when the document lacks the markers.