Given the source code for an expression, return the parsed [`Expression`]. If the expression is not guaranteed to be valid as a standalone expression

Match parameters for this constructor method and downstream constructors.

Returns the minimum length of this tuple.

The absolute name of the module (e.g. `foo.bar`)

Send a `textDocument/didOpen` notification

Fallback (wholly or partially) to `fallback` to create a new [`LookupResult`].

Returns a shared borrow of the "primary" annotation of this diagnostic if one exists. When there are multiple primary annotations, then the first one

If error context collection is enabled, returns the current error context tree. You will typically use [`push`][ErrorContextTree::push] to add additio

Resolve the relevant settings strategy and defaults for the current invocation.

Returns the resolved client capabilities that were captured during initialization.

Returns rules matching the selector, taking into account rule groups like preview and deprecated.

The scope in which the reference is defined.

Set the offset of the diagnostic's parent statement.

Returns the severity of this diagnostic. Note that this may be different than the severity of sub-diagnostics.

Add a file to site-packages (simulating a third-party dependency). The path should be relative to site-packages root (e.g., "numpy/__init__.py").

Takes a snapshot of the current state of the matched overload bindings. # Panics Panics if the indexes of the matched overloads are not valid for th

Returns the corresponding [`AnySystemPath`] for this document key. Note, calling this method on a `DocumentKey::Opaque` representing a cell document

Resolves the boolean value of a type. This is used to determine the value that would be returned when `bool(x)` is called on an object `x`. Returns

Returns an _owned_ (i.e. salsa-cached) constraint set that describes when `self` is constraint-set assignable to `target`. Recursive relations are ev

Convert to a builder that supports site-packages (third-party dependencies).

Get the character used to represent this quote.

Render the error context tree as info sub-diagnostics on `diag`.

Bind `Self` type variables in this type to a concrete self type. Uses MRO-based matching: a `Self` typevar is only bound if its owner class is in the

Derives the instance/class read/write capabilities exposed by this member. These are views of the canonical method, property, or attribute representa

Returns the (raw) cell number (1-based) for the given row (1-based).

Send a `textDocument/didChange` notification with the given content changes

Return the class that defines this protocol, if it is class-backed.

The total length of the string's closer. This is always equal to `self.quote_len()`, except when the string is unclosed, in which case the length is z

Return the [`LintContext`] for the current analysis. Note that you should always prefer calling methods like `settings`, `report_diagnostic`, or `is_

Creates a directory at `path`. All enclosing directories are created if they don't exist.

Returns the `UnifiedFile` attached to this `Span`.

If the type is a union (or a type alias that resolves to a union), filters union elements based on the provided predicate. Otherwise, returns the typ

Whether to hide a diagnostic's severity or not.

Returns `true` if the string list of `codes` includes `code` (or an alias thereof).

Consumes the [`Parsed`] output and returns the module body as a [`Suite`].

Return `true` if an [`Expr`] is a literal `True`.

Returns `true` if this is either a positional-only or standard (positional or keyword) parameter.

Return `true` if this class is a protocol class. In an ideal world, perhaps we wouldn't hardcode this knowledge here; instead, we'd just look at the

Returns the field exposed by a literal key. Undeclared keys synthesize a field only for explicit extra items. Hidden items on an implicitly open `Typ

Returns an iterator over all `CallableBinding`s, flattening the two-level structure. Note: This loses the union/intersection distinction. The returne

Joins the objects by placing the specified separator between every two items. ## Examples Joining different tokens by separating them with a comma a

Lookup the type of `symbol` in a given known module. Returns `Place::Undefined` if the given known module cannot be resolved for some reason.

Returns an iterator over the [leading](self#leading-comments), [dangling](self#dangling-comments), and [trailing](self#trailing) comments of `node`.

Extract the leading indentation from a line.

Marks the comment as formatted

Applies both constraint kinds between the place's last materialized nodes and `target`. The place's node must be an ancestor of `target`. After mater

Extract parameter documentation from popular docstring formats. Returns a map of parameter names to their documentation.

Given a [`NodeId`], return the [`NodeId`] of the parent statement, if any.

Formats `content` enclosed by the `left` and `right` parentheses. The implementation also ensures that expanding the parenthesized expression (or any