Module utils

Available on crate features __ecma and __utils only.

Modules

• constructor
• function
• ident
• number
• parallel
  Module for parallel processing
• stack_size
• swc_atoms
  See JsWord and Atom
• swc_common
  Utilities for the swc project
• swc_ecma_ast
• var

Macros

• member_expr
  Creates a member expression.
• private_ident
  Shortcut for quote_ident!(span.apply_mark(Mark::fresh(Mark::root())), s)
• quote_expr
• quote_ident
  As we have multiple identifier types, the expected usage is quote_ident!("foo").into().
• quote_str

Structs

• ArgumentsFinder
• BindingCollector
• BindingIdentifierVisitor
  Finds all binding idents of variables.
• DestructuringFinder
  Finds all binding idents of variables.
• DropSpan
• ExprCtx
• Hoister
• IdentRefFinder
• IdentRenamer
  Replacer for Id => ]Id]
• IdentReplacer
• IdentUsageFinder
  Finds usage of ident
• LiteralVisitor
• NodeIgnoringSpan
  A newtype that will ignore Span while doing eq or hash.
• RefRewriter
  Replace foo with bar or bar.baz
• Remapper
  Variable remapper
• RestPatVisitor
• ThisVisitor
• TopLevelAwait

Enums

• Purity
• Type
  Type of value.
• Value
  Runtime value.

Traits

• ExprExt
  Extension methods for Expr.
• ExprFactory
  Extension methods for Expr.
• FunctionFactory
• IntoIndirectCall
• IsDirective
• IsEmpty
• Merge
• ModuleItemLike
• QueryRef
• StmtExt
• StmtLike
• StmtLikeInjector
  Prepends statements after directive statements.
• StmtOrModuleItem

Functions

• alias_ident_for
  Used to determine super_class_ident
• alias_ident_for_simple_assign_tatget
  Used to determine super_class_ident
• alias_if_required
  Returns (ident, aliased)
• calc_literal_cost
• class_has_side_effect
• collect_decls
  Collects binding identifiers.
• collect_decls_with_ctxt
  Collects binding identifiers, but only if it has a context which is identical to ctxt.
• contains_arguments
• contains_ident_ref
• contains_this_expr
  This does not recurse into a function if this is changed by it.
• contains_top_level_await
• default_constructorDeprecated
• default_constructor_with_span
  super_call_span should be the span of the class definition Use value of Class::span.
• drop_span
• extract_var_ids
  Extracts hoisted variables
• find_pat_ids
  Finds all binding idents of node.
• for_each_binding_ident
  Finds all binding idents of node. Any nested identifiers in expressions are ignored.
• has_rest_pat
• is_literal
• is_maybe_branch_directive
  If the stmt is maybe a directive like "use strict";
• is_rest_arguments
  Check if e is ...arguments
• is_simple_pure_expr
• is_simple_pure_member_expr
• is_valid_ident
• is_valid_prop_ident
• num_from_str
• opt_chain_test
• prepend_stmt
  inject branch after directives
• prepend_stmts
  inject stmts after directives
• prop_name_eq
• prop_name_to_expr
• prop_name_to_expr_value
  Similar to prop_name_to_expr, but used for value position.
• prop_name_to_member_prop
• replace_ident
  Replace all from in expr with to.
• to_int32
  Cast to javascript’s int32

Type Aliases

• BoolValue