Struct Destructurer

pub struct Destructurer<'a> {
    pub(crate) type_table: &'a TypeTable,
    pub(crate) node_builder: &'a NodeBuilder,
    pub(crate) assigner: &'a Assigner,
    pub(crate) tuples: IndexMap<Symbol, TupleExpression>,
    pub(crate) is_async: bool,
}

Fields

type_table: &'a TypeTable

A mapping between node IDs and their types.

node_builder: &'a NodeBuilder

A counter used to generate unique node IDs.

assigner: &'a Assigner

A struct used to construct (unique) assignment statements.

tuples: IndexMap<Symbol, TupleExpression>

A mapping between variables and flattened tuple expressions.

is_async: bool

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

Implementations

impl<'a> Destructurer<'a>

pub(crate) fn new( type_table: &'a TypeTable, node_builder: &'a NodeBuilder, assigner: &'a Assigner, ) -> Self

pub(crate) fn simple_assign_statement( &mut self, lhs: Identifier, rhs: Expression, ) -> Statement

A wrapper around assigner.simple_assign_statement that tracks the type of the lhs.

Trait Implementations

impl ExpressionReconstructor for Destructurer<'_>

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

Replaces a tuple access expression with the appropriate expression.

type AdditionalOutput = Vec<Statement>

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

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

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

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

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

fn reconstruct_member_access( &mut self, input: MemberAccess, ) -> (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_ternary( &mut self, input: TernaryExpression, ) -> (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<'a> Pass for Destructurer<'a>

type Input = (Ast, &'a TypeTable, &'a NodeBuilder, &'a Assigner)

type Output = Result<Ast, LeoError>

fn do_pass((ast, tt, node_builder, assigner): Self::Input) -> Self::Output

Runs the compiler pass.

impl ProgramReconstructor for Destructurer<'_>

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 Destructurer<'_>

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

Flattens an assign statement, if necessary. Marks variables as structs as necessary. Note that new statements are only produced if the right hand side is a ternary expression over structs. Otherwise, the statement is returned as is.

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

Reconstructs

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

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

fn reconstruct_console( &mut self, _: ConsoleStatement, ) -> (Statement, Self::AdditionalOutput)

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

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