Module clippy_utils::macros

Macros

• impl_hir_node 🔒

Structs

• 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, if it cannot be found it will return the rustc_ast::Expr.
• find_format_args
  Returns an AST FormatArgs node if a format_args expansion is found as a descendant of expn_id
• 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). This generally means that node is the outermost node of an entire macro expansion, but there are some caveats noted below. This is useful for finding macro calls while visiting the HIR without processing the macro call at every node within its 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.
• 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