Struct DeadCodeEliminatingVisitor

pub struct DeadCodeEliminatingVisitor<'a> {
    pub state: &'a mut CompilerState,
    pub used_variables: IndexSet<Symbol>,
    pub program_name: Symbol,
    pub statements_before: u32,
    pub statements_after: u32,
}

Fields

state: &'a mut CompilerState

used_variables: IndexSet<Symbol>

The set of used variables in the current function body.

program_name: Symbol

The name of the program currently being processed.

statements_before: u32

How many statements were in the AST before DCE?

statements_after: u32

How many statements were in the AST after DCE?

Implementations

impl DeadCodeEliminatingVisitor<'_>

pub fn side_effect_free(&self, expr: &Expression) -> bool

Trait Implementations

impl ExpressionReconstructor for DeadCodeEliminatingVisitor<'_>

type AdditionalOutput = ()

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

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

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_tuple_access( &mut self, input: TupleAccess, ) -> (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_err( &mut self, _input: ErrExpression, ) -> (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 ProgramReconstructor for DeadCodeEliminatingVisitor<'_>

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

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

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

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

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 DeadCodeEliminatingVisitor<'_>

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

Reconstruct an assignment statement by eliminating any dead code.

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

Reconstructs the statements inside a basic block, eliminating any dead code.

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

Static single assignment replaces definition statements with assignment statements.

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

Loop unrolling unrolls and removes iteration statements from the program.

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

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

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

impl TypeReconstructor for DeadCodeEliminatingVisitor<'_>

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)