Module ide_db::syntax_helpers::node_ext

Various helper functions to work with SyntaxNodes.

Functions

• block_as_lone_tail
• eq_label_lt
• expr_as_name_ref
• for_each_break_and_continue_expr
• for_each_tail_expr
  Calls cb on each expression inside expr that is at “tail position”. Does not walk into break or return expressions. Note that modifying the tree while iterating it will cause undefined iteration which might potentially results in an out of bounds panic.
• full_path_of_name_ref
• is_closure_or_blk_with_modif
• is_pattern_cond
• macro_call_for_string_token
• parse_tt_as_comma_sep_paths
  Parses the input token tree as comma separated plain paths.
• preorder_expr
  Preorder walk all the expression’s child expressions preserving events. If the callback returns true on an [WalkEvent::Enter], the subtree of the expression will be skipped. Note that the subtree may already be skipped due to the context analysis this function does.
• preorder_expr_with_ctx_checker
• single_let
  Returns the let only if there is exactly one (that is, let pat = expr or ((let pat = expr)), but not let pat = expr && expr or non_let_expr).
• vis_eq
• walk_expr
  Preorder walk all the expression’s child expressions.
• walk_pat
  Preorder walk all the pattern’s sub patterns.
• walk_patterns_in_expr
  Preorder walk all the expression’s child patterns.
• walk_ty
  Preorder walk all the type’s sub types.