Struct ExprCtx

pub struct ExprCtx {
    pub unresolved_ctxt: SyntaxContext,
    pub is_unresolved_ref_safe: bool,
    pub in_strict: bool,
    pub remaining_depth: u8,
}

Fields

unresolved_ctxt: SyntaxContext

This [SyntaxContext] should be applied only to unresolved references.

In other words, this should be applied to identifier references to global objects like Object or Math, and when those are not shadowed by a local declaration.

is_unresolved_ref_safe: bool

True for argument of typeof.

in_strict: bool

True if we are in the strict mode. This will be set to true for statements after 'use strict'

remaining_depth: u8

Remaining depth of the current expression. If this is 0, it means the function should not operate and return the safe value.

Default value is 4

Implementations

impl ExprCtx

pub fn consume_depth(self) -> Option<Self>

pub fn preserve_effects<I>( self, span: Span, val: Box<Expr>, exprs: I, ) -> Box<Expr>

where I: IntoIterator<Item = Box<Expr>>,

make a new expression which evaluates val preserving side effects, if any.

pub fn extract_side_effects_to(self, to: &mut Vec<Box<Expr>>, expr: Expr)

Add side effects of expr to to. This function preserves order and conditions. (think a() ? yield b() : c())

Trait Implementations

impl Clone for ExprCtx

fn clone(&self) -> ExprCtx

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ExprCtx

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

Formats the value using the given formatter.

impl Copy for ExprCtx