Struct DestructuringVisitor

pub struct DestructuringVisitor<'a> {
    pub state: &'a mut CompilerState,
    pub tuples: IndexMap<Symbol, Vec<Identifier>>,
    pub is_async: bool,
}

Fields

state: &'a mut CompilerState

tuples: IndexMap<Symbol, Vec<Identifier>>

A mapping between variables and tuple elements.

is_async: bool

Whether or not we are currently traversing an async function block.

Implementations

impl DestructuringVisitor<'_>

pub fn reconstruct_expression_tuple( &mut self, expression: Expression, ) -> (Expression, Vec<Statement>)

Similar to reconstruct_expression, except that if expression is of tuple type, returns it as a tuple literal (mem1, mem2, mem3, ...).

pub fn assign_tuple( &mut self, expression: Expression, name: Symbol, ) -> Statement

Trait Implementations

impl ExpressionReconstructor for DestructuringVisitor<'_>

fn reconstruct_tuple_access( &mut self, input: TupleAccess, ) -> (Expression, Self::AdditionalOutput)

Replaces a tuple access expression with the appropriate expression.

fn reconstruct_ternary( &mut self, input: TernaryExpression, ) -> (Expression, Self::AdditionalOutput)

If this is a ternary expression on tuples of length n, we’ll need to change it into n ternary expressions on the members.

type AdditionalOutput = Vec<Statement>

fn reconstruct_expression( &mut self, input: Expression, ) -> (Expression, Self::AdditionalOutput)

fn reconstruct_array_access( &mut self, input: ArrayAccess, ) -> (Expression, Self::AdditionalOutput)

fn reconstruct_associated_constant( &mut self, input: AssociatedConstantExpression, ) -> (Expression, Self::AdditionalOutput)

fn reconstruct_associated_function( &mut self, input: AssociatedFunctionExpression, ) -> (Expression, Self::AdditionalOutput)

fn reconstruct_member_access( &mut self, input: MemberAccess, ) -> (Expression, Self::AdditionalOutput)

fn reconstruct_repeat( &mut self, input: RepeatExpression, ) -> (Expression, Self::AdditionalOutput)

fn reconstruct_array( &mut self, input: ArrayExpression, ) -> (Expression, Self::AdditionalOutput)

fn reconstruct_binary( &mut self, input: BinaryExpression, ) -> (Expression, Self::AdditionalOutput)

fn reconstruct_call( &mut self, input: CallExpression, ) -> (Expression, Self::AdditionalOutput)

fn reconstruct_cast( &mut self, input: CastExpression, ) -> (Expression, Self::AdditionalOutput)

fn reconstruct_struct_init( &mut self, input: StructExpression, ) -> (Expression, Self::AdditionalOutput)

fn reconstruct_err( &mut self, _input: ErrExpression, ) -> (Expression, Self::AdditionalOutput)

fn reconstruct_identifier( &mut self, input: Identifier, ) -> (Expression, Self::AdditionalOutput)

fn reconstruct_literal( &mut self, input: Literal, ) -> (Expression, Self::AdditionalOutput)

fn reconstruct_locator( &mut self, input: LocatorExpression, ) -> (Expression, Self::AdditionalOutput)

fn reconstruct_tuple( &mut self, input: TupleExpression, ) -> (Expression, Self::AdditionalOutput)

fn reconstruct_unary( &mut self, input: UnaryExpression, ) -> (Expression, Self::AdditionalOutput)

fn reconstruct_unit( &mut self, input: UnitExpression, ) -> (Expression, Self::AdditionalOutput)

impl ProgramReconstructor for DestructuringVisitor<'_>

fn reconstruct_function(&mut self, input: Function) -> Function

fn reconstruct_program(&mut self, input: Program) -> Program

fn reconstruct_stub(&mut self, input: Stub) -> Stub

fn reconstruct_program_scope(&mut self, input: ProgramScope) -> ProgramScope

fn reconstruct_function_stub(&mut self, input: FunctionStub) -> FunctionStub

fn reconstruct_struct(&mut self, input: Composite) -> Composite

fn reconstruct_import(&mut self, input: Program) -> Program

fn reconstruct_mapping(&mut self, input: Mapping) -> Mapping

impl StatementReconstructor for DestructuringVisitor<'_>

fn reconstruct_assign( &mut self, assign: AssignStatement, ) -> (Statement, Self::AdditionalOutput)

Modify assignments to tuples to become assignments to the corresponding variables.

There are two cases we handle:

1. An assignment to a tuple x, like x = rhs;. This we need to transform into individual assignments x_i = rhs_i; of the variables corresponding to members of x and rhs.
2. An assignment to a tuple member, like x.2[i].member = rhs;. This we need to change into x_2[i].member = rhs; where x_2 is the variable corresponding to x.2.

fn reconstruct_block(&mut self, block: Block) -> (Block, Self::AdditionalOutput)

fn reconstruct_conditional( &mut self, input: ConditionalStatement, ) -> (Statement, Self::AdditionalOutput)

fn reconstruct_definition( &mut self, definition: DefinitionStatement, ) -> (Statement, Self::AdditionalOutput)

fn reconstruct_iteration( &mut self, _: IterationStatement, ) -> (Statement, Self::AdditionalOutput)

fn reconstruct_return( &mut self, input: ReturnStatement, ) -> (Statement, Self::AdditionalOutput)

fn reconstruct_statement( &mut self, input: Statement, ) -> (Statement, Self::AdditionalOutput)

fn reconstruct_assert( &mut self, input: AssertStatement, ) -> (Statement, Self::AdditionalOutput)

fn reconstruct_const( &mut self, input: ConstDeclaration, ) -> (Statement, Self::AdditionalOutput)

fn reconstruct_expression_statement( &mut self, input: ExpressionStatement, ) -> (Statement, Self::AdditionalOutput)

impl TypeReconstructor for DestructuringVisitor<'_>

fn reconstruct_type(&mut self, input: Type) -> (Type, Self::AdditionalOutput)

fn reconstruct_array_type( &mut self, input: ArrayType, ) -> (Type, Self::AdditionalOutput)

fn reconstruct_future_type( &mut self, input: FutureType, ) -> (Type, Self::AdditionalOutput)

fn reconstruct_mapping_type( &mut self, input: MappingType, ) -> (Type, Self::AdditionalOutput)

fn reconstruct_tuple_type( &mut self, input: TupleType, ) -> (Type, Self::AdditionalOutput)