Struct SimpleParserDatabase

pub struct SimpleParserDatabase { /* private fields */ }

A salsa database for parsing only.

Implementations

impl SimpleParserDatabase

pub fn parse_virtual( &self, content: impl ToString, ) -> Result<SyntaxNode, Diagnostics<ParserDiagnostic>>

Parses new file and returns its syntax root.

This is similar to Self::parse_virtual_with_diagnostics, but is more ergonomic in cases when exact diagnostics do not matter at the usage place. If the parser has emitted error diagnostics, this function will return an error. If no error diagnostics has been emitted, the syntax root will be returned.

pub fn parse_virtual_with_diagnostics( &self, content: impl ToString, ) -> (SyntaxNode, Diagnostics<ParserDiagnostic>)

Parses new file and return its syntax root with diagnostics.

This function creates new virtual file with the given content and parses it. Diagnostics gathered by the parser are returned alongside the result.

pub fn parse_token_stream( &self, token_stream: &dyn TokenStream, ) -> (SyntaxNode, Diagnostics<ParserDiagnostic>)

Parses a TokenStream (based on whole file) and returns its syntax root. It’s very similar to Self::parse_virtual_with_diagnostics, but instead of taking a content as a string, it takes a TokenStream.

pub fn parse_token_stream_expr( &self, token_stream: &dyn TokenStream, ) -> (SyntaxNode, Diagnostics<ParserDiagnostic>)

Parses a TokenStream (based on a single expression). It’s very similar to the Self::parse_token_stream.

Trait Implementations

impl Database for SimpleParserDatabase

fn salsa_event(&self, event_fn: Event)

This function is invoked at key points in the salsa runtime. It permits the database to be customized and to inject logging or other custom behavior.

fn unwind_if_cancelled(&self)

Starts unwinding the stack if the current revision is cancelled.

fn salsa_runtime(&self) -> &Runtime

Gives access to the underlying salsa runtime.

fn salsa_runtime_mut(&mut self) -> &mut Runtime

Gives access to the underlying salsa runtime.

impl DatabaseOps for SimpleParserDatabase

fn ops_database(&self) -> &dyn Database

Upcast this type to a dyn Database.

fn ops_salsa_runtime(&self) -> &Runtime

Gives access to the underlying salsa runtime.

fn ops_salsa_runtime_mut(&mut self) -> &mut Runtime

Gives access to the underlying salsa runtime.

fn fmt_index(&self, input: DatabaseKeyIndex, fmt: &mut Formatter<'_>) -> Result

Formats a database key index in a human readable fashion.

fn maybe_changed_after( &self, input: DatabaseKeyIndex, revision: Revision, ) -> bool

True if the computed value for input may have changed since revision.

fn cycle_recovery_strategy( &self, input: DatabaseKeyIndex, ) -> CycleRecoveryStrategy

Find the CycleRecoveryStrategy for a given input.

fn for_each_query(&self, op: &mut dyn FnMut(&dyn QueryStorageMassOps))

Executes the callback for each kind of query.

impl DatabaseStorageTypes for SimpleParserDatabase

type DatabaseStorage = __SalsaDatabaseStorage

Defines the “storage type”, where all the query data is kept. This type is defined by the database_storage macro.

impl Default for SimpleParserDatabase

fn default() -> Self

Returns the “default value” for a type.

impl ExternalFiles for SimpleParserDatabase

fn ext_as_virtual(&self, external_id: InternId) -> VirtualFile

Returns the virtual file matching the external id.

fn try_ext_as_virtual(&self, _external_id: InternId) -> Option<VirtualFile>

Returns the virtual file matching the external id if found.

impl HasQueryGroup<FilesDatabase> for SimpleParserDatabase

fn group_storage(&self) -> &<FilesDatabase as QueryGroup>::GroupStorage

Access the group storage struct from the database.

fn group_storage_mut( &mut self, ) -> (&<FilesDatabase as QueryGroup>::GroupStorage, &mut Runtime)

Access the group storage struct from the database. Also returns a ref to the Runtime, since otherwise the database is borrowed and one cannot get access to it.

impl HasQueryGroup<ParserDatabase> for SimpleParserDatabase

fn group_storage(&self) -> &<ParserDatabase as QueryGroup>::GroupStorage

Access the group storage struct from the database.

fn group_storage_mut( &mut self, ) -> (&<ParserDatabase as QueryGroup>::GroupStorage, &mut Runtime)

Access the group storage struct from the database. Also returns a ref to the Runtime, since otherwise the database is borrowed and one cannot get access to it.

impl HasQueryGroup<SyntaxDatabase> for SimpleParserDatabase

fn group_storage(&self) -> &<SyntaxDatabase as QueryGroup>::GroupStorage

Access the group storage struct from the database.

fn group_storage_mut( &mut self, ) -> (&<SyntaxDatabase as QueryGroup>::GroupStorage, &mut Runtime)

Access the group storage struct from the database. Also returns a ref to the Runtime, since otherwise the database is borrowed and one cannot get access to it.

impl Upcast<dyn FilesGroup> for SimpleParserDatabase

fn upcast(&self) -> &(dyn FilesGroup + 'static)

impl Upcast<dyn SyntaxGroup> for SimpleParserDatabase

fn upcast(&self) -> &(dyn SyntaxGroup + 'static)