Module clippy::utils

Structs

DiagnosticWrapper
LimitStack
SpanlessEq	Type used to check whether two ast are the same. This is different from the operator == on ast types as this operator would compare true equality with ID and span.
SpanlessHash	Type used to hash an ast element. This is different from the Hash trait on ast types as this trait would consider IDs and spans.
UnsugaredRange	Represents a range akin to ast::ExprKind::Range.

Constants

BEGIN_UNWIND
BOX_NEW_PATH
BTREEMAP_ENTRY_PATH
BTREEMAP_PATH
CLONE_PATH
CLONE_TRAIT_PATH
COW_PATH
DEBUG_FMT_METHOD_PATH
DEFAULT_TRAIT_PATH
DISPLAY_FMT_METHOD_PATH
DROP_PATH
FMT_ARGUMENTS_NEWV1_PATH
FMT_ARGUMENTV1_NEW_PATH
HASHMAP_ENTRY_PATH
HASHMAP_PATH
HASH_PATH
IO_PRINT_PATH
LL_PATH
MUTEX_PATH
OPEN_OPTIONS_PATH
OPTION_PATH
RANGE_FROM_PATH
RANGE_FULL_PATH
RANGE_INCLUSIVE_NON_EMPTY_PATH
RANGE_PATH
RANGE_TO_INCLUSIVE_PATH
RANGE_TO_PATH
REGEX_NEW_PATH
RESULT_PATH
STRING_PATH
VEC_FROM_ELEM_PATH
VEC_PATH

Functions

camel_case_from	Returns index of last CamelCase component of s.
camel_case_until	Returns index of character after first CamelCase component of s
differing_macro_contexts	Returns true if the two spans come from differing expansions (i.e. one is from a macro and one isn't).
expr_block	Like snippet_block, but add braces if the expr is not an ExprBlock. Also takes an Option<String> which can be put inside the braces.
get_enclosing_block
get_item_name	Get the name of the item the expression is in, if available.
get_parent_expr	Get a parent expressions if any – this is useful to constrain a lint.
get_trait_def_id	Convenience function to get the DefId of a trait by path.
implements_trait	Check whether a type implements a trait. See also get_trait_def_id.
in_external_macro	Returns true if the macro that expanded the crate was outside of the current crate or was a compiler plugin.
in_macro	Returns true if this expn_info was expanded by any macro.
is_adjusted
is_expn_of	Return the pre-expansion span if is this comes from an expansion of the macro name.
is_from_for_desugar	Checks if a let decl is from a for loop desugaring.
is_integer_literal	Check whether the given expression is a constant literal of the given value.
match_def_path	Check if a DefId's path matches the given absolute type path usage.
match_impl_method	Check if the method call given in expr belongs to given type.
match_path	Match a Path against a slice of segment string literals.
match_path_ast	Match a Path against a slice of segment string literals, e.g.
match_trait_method	Check if the method call given in expr belongs to given trait.
match_type	Check if type is struct or enum type with given def path.
method_chain_args	Match an Expr against a chain of methods, and return the matched Exprs.
path_to_def	Get the definition associated to a path. TODO: investigate if there is something more efficient for that.
snippet	Convert a span to a code snippet if available, otherwise use default.
snippet_block	Convert a span (from a block) to a code snippet if available, otherwise use default. This trims the code of indentation, except for the first line. Use it for blocks or block-like things which need to be printed as such.
snippet_opt	Convert a span to a code snippet. Returns None if not available.
span_help_and_lint
span_lint
span_lint_and_then
span_note_and_lint
trim_multiline	Trim indentation from a multiline string with possibility of ignoring the first line.
unsugar_range	Unsugar a hir range.
walk_ptrs_ty	Return the base type for references and raw pointers.
walk_ptrs_ty_depth	Return the base type for references and raw pointers, and count reference depth.

Type Definitions

MethodArgs