Module macros

Macros

• impl_hir_node 🔒

Structs

• FormatArgsStorage
  Stores AST FormatArgs nodes for use in late lint passes, as they are in a desugared form in the HIR
• MacroCall
  A macro call, like vec![1, 2, 3].

Enums

• FormatParamUsage
  Where a format parameter is being used in the format string
• PanicExpn

Constants

• FORMAT_MACRO_DIAG_ITEMS 🔒

Traits

• HirNode
  A node with a HirId and a Span

Functions

• expn_backtrace
  Returns an iterator of expansions that created the given span
• expn_is_local
  Checks whether the expansion is the root expansion or a locally defined macro
• find_assert_args
  Finds the arguments of an assert! or debug_assert! macro call within the macro expansion
• find_assert_args_inner 🔒
• find_assert_eq_args
  Finds the arguments of an assert_eq! or debug_assert_eq! macro call within the macro expansion
• find_assert_within_debug_assert 🔒
• find_format_arg_expr
  Attempt to find the rustc_hir::Expr that corresponds to the FormatArgument’s value
• first_node_in_macro
  If node is the “first node” in a macro expansion, returns Some with the ExpnId of the macro call site (i.e. the parent of the macro expansion).
• first_node_macro_backtrace
  Like macro_backtrace, but only returns macro calls where node is the “first node” of the macro call, as in first_node_in_macro.
• format_arg_removal_span
  Returns the Span of the value at index extended to the previous comma, e.g. for the value 10
• format_args_inputs_span
  Span covering the format string and values
• format_placeholder_format_span
  Span of the : and format specifiers
• is_assert_arg 🔒
• is_assert_macro
  Is def_id of assert! or debug_assert!
• is_format_macro
  Returns true if a given Macro DefId is a format macro (e.g. println!)
• is_panic
  Is def_id of std::panic, core::panic or any inner implementation macros
• macro_backtrace
  Returns an iterator of macro expansions that created the given span. Note that desugaring expansions are skipped.
• matching_root_macro_call
  A combination of root_macro_call and is_diagnostic_item that returns a MacroCall at the root expansion if only it matches the given name.
• root_macro_call
  If the macro backtrace of span has a macro call at the root expansion (i.e. not a nested macro call), returns Some with the MacroCall
• root_macro_call_first_node
  Like root_macro_call, but only returns Some if node is the “first node” produced by the macro call, as in first_node_in_macro.
• span_is_local
  Checks whether the span is from the root expansion or a locally defined macro