Enum prql_compiler::ir::decl::DeclKind

pub enum DeclKind {
    Module(Module),
    LayeredModules(Vec<Module>),
    TableDecl(TableDecl),
    InstanceOf(Ident, Option<Ty>),
    Column(usize),
    Infer(Box<DeclKind>),
    Expr(Box<Expr>),
    Ty(Ty),
    QueryDef(QueryDef),
}

The Declaration itself.

Variants

Module(Module)

A nested namespace

LayeredModules(Vec<Module>)

Nested namespaces that do lookup in layers from top to bottom, stopping at first match.

TableDecl(TableDecl)

InstanceOf(Ident, Option<Ty>)

Column(usize)

A single column. Contains id of target which is either:

• an input relation that is source of this column or
• a column expression.

Infer(Box<DeclKind>)

Contains a default value to be created in parent namespace when NS_INFER is matched.

Expr(Box<Expr>)

Ty(Ty)

QueryDef(QueryDef)

Implementations

impl DeclKind

pub fn is_module(&self) -> bool

Returns true if this is a DeclKind::Module, otherwise false

pub fn as_module_mut(&mut self) -> Option<&mut Module>

Optionally returns mutable references to the inner fields if this is a DeclKind::Module, otherwise None

pub fn as_module(&self) -> Option<&Module>

Optionally returns references to the inner fields if this is a DeclKind::Module, otherwise None

pub fn into_module(self) -> Result<Module, DeclKind>

Returns the inner fields if this is a DeclKind::Module, otherwise returns back the enum in the Err case of the result

pub fn is_layered_modules(&self) -> bool

Returns true if this is a DeclKind::LayeredModules, otherwise false

pub fn as_layered_modules_mut(&mut self) -> Option<&mut Vec<Module>>

Optionally returns mutable references to the inner fields if this is a DeclKind::LayeredModules, otherwise None

pub fn as_layered_modules(&self) -> Option<&Vec<Module>>

Optionally returns references to the inner fields if this is a DeclKind::LayeredModules, otherwise None

pub fn into_layered_modules(self) -> Result<Vec<Module>, DeclKind>

Returns the inner fields if this is a DeclKind::LayeredModules, otherwise returns back the enum in the Err case of the result

pub fn is_table_decl(&self) -> bool

Returns true if this is a DeclKind::TableDecl, otherwise false

pub fn as_table_decl_mut(&mut self) -> Option<&mut TableDecl>

Optionally returns mutable references to the inner fields if this is a DeclKind::TableDecl, otherwise None

pub fn as_table_decl(&self) -> Option<&TableDecl>

Optionally returns references to the inner fields if this is a DeclKind::TableDecl, otherwise None

pub fn into_table_decl(self) -> Result<TableDecl, DeclKind>

Returns the inner fields if this is a DeclKind::TableDecl, otherwise returns back the enum in the Err case of the result

pub fn is_instance_of(&self) -> bool

Returns true if this is a DeclKind::InstanceOf, otherwise false

pub fn as_instance_of_mut(&mut self) -> Option<(&mut Ident, &mut Option<Ty>)>

Optionally returns mutable references to the inner fields if this is a DeclKind::InstanceOf, otherwise None

pub fn as_instance_of(&self) -> Option<(&Ident, &Option<Ty>)>

Optionally returns references to the inner fields if this is a DeclKind::InstanceOf, otherwise None

pub fn into_instance_of(self) -> Result<(Ident, Option<Ty>), DeclKind>

Returns the inner fields if this is a DeclKind::InstanceOf, otherwise returns back the enum in the Err case of the result

pub fn is_column(&self) -> bool

Returns true if this is a DeclKind::Column, otherwise false

pub fn as_column_mut(&mut self) -> Option<&mut usize>

Optionally returns mutable references to the inner fields if this is a DeclKind::Column, otherwise None

pub fn as_column(&self) -> Option<&usize>

Optionally returns references to the inner fields if this is a DeclKind::Column, otherwise None

pub fn into_column(self) -> Result<usize, DeclKind>

Returns the inner fields if this is a DeclKind::Column, otherwise returns back the enum in the Err case of the result

pub fn is_infer(&self) -> bool

Returns true if this is a DeclKind::Infer, otherwise false

pub fn as_infer_mut(&mut self) -> Option<&mut Box<DeclKind>>

Optionally returns mutable references to the inner fields if this is a DeclKind::Infer, otherwise None

pub fn as_infer(&self) -> Option<&Box<DeclKind>>

Optionally returns references to the inner fields if this is a DeclKind::Infer, otherwise None

pub fn into_infer(self) -> Result<Box<DeclKind>, DeclKind>

Returns the inner fields if this is a DeclKind::Infer, otherwise returns back the enum in the Err case of the result

pub fn is_expr(&self) -> bool

Returns true if this is a DeclKind::Expr, otherwise false

pub fn as_expr_mut(&mut self) -> Option<&mut Box<Expr>>

Optionally returns mutable references to the inner fields if this is a DeclKind::Expr, otherwise None

pub fn as_expr(&self) -> Option<&Box<Expr>>

Optionally returns references to the inner fields if this is a DeclKind::Expr, otherwise None

pub fn into_expr(self) -> Result<Box<Expr>, DeclKind>

Returns the inner fields if this is a DeclKind::Expr, otherwise returns back the enum in the Err case of the result

pub fn is_ty(&self) -> bool

Returns true if this is a DeclKind::Ty, otherwise false

pub fn as_ty_mut(&mut self) -> Option<&mut Ty>

Optionally returns mutable references to the inner fields if this is a DeclKind::Ty, otherwise None

pub fn as_ty(&self) -> Option<&Ty>

Optionally returns references to the inner fields if this is a DeclKind::Ty, otherwise None

pub fn into_ty(self) -> Result<Ty, DeclKind>

Returns the inner fields if this is a DeclKind::Ty, otherwise returns back the enum in the Err case of the result

pub fn is_query_def(&self) -> bool

Returns true if this is a DeclKind::QueryDef, otherwise false

pub fn as_query_def_mut(&mut self) -> Option<&mut QueryDef>

Optionally returns mutable references to the inner fields if this is a DeclKind::QueryDef, otherwise None

pub fn as_query_def(&self) -> Option<&QueryDef>

Optionally returns references to the inner fields if this is a DeclKind::QueryDef, otherwise None

pub fn into_query_def(self) -> Result<QueryDef, DeclKind>

Returns the inner fields if this is a DeclKind::QueryDef, otherwise returns back the enum in the Err case of the result

Trait Implementations

impl Clone for DeclKind

fn clone(&self) -> DeclKind

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for DeclKind

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Default for DeclKind

fn default() -> DeclKind

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for DeclKind

fn deserialize<__D>( __deserializer: __D ) -> Result<DeclKind, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for DeclKind

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl From<DeclKind> for Decl

fn from(kind: DeclKind) -> Decl

Converts to this type from the input type.

impl PartialEq for DeclKind

fn eq(&self, other: &DeclKind) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for DeclKind

fn serialize<__S>( &self, __serializer: __S ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for DeclKind