A format argument, such as {}, {foo:?}.

A parsed format_args! expansion.

A FormatParam is any place in a FormatArgument that refers to a supplied value, e.g.

Specification for the formatting of an argument in the format string. See https://doc.rust-lang.org/std/fmt/index.html#formatting-parameters for the precise meanings.

FormatString

The format string doesn’t exist in the HIR, so we reassemble it from source code

MacroCall

A macro call, like vec![1, 2, 3].

ParamPosition 🔒

The positions of a format argument’s value, precision and width

Enums

Count

Used by width and precision specifiers.

FormatParamKind

How a format parameter is used in the format string

FormatParamUsage

Where a format parameter is being used in the format string

PanicExpn

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 🔒

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.

is_assert_arg 🔒

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.

parse_rt_fmt 🔒

Parses the fmt arg of Arguments::new_v1_formatted(pieces, args, fmt, _)

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_from_inner 🔒

Span::from_inner, but for rustc_parse_format’s InnerSpan

span_is_local

Checks whether the span is from the root expansion or a locally defined macro

Module clippy_utils::macros

Macros

Structs

Enums

Constants

Traits

Functions