abort Signal an error, warning, or message
arg_match Match an argument to a character vector
args_error_context Documentation anchor for error arguments
as_box Convert object to a box
as_data_mask Create a data mask
as_environment Coerce to an environment
as_function Convert to function
as_label Create a default name for an R object
as_name Extract names from symbols
as_string Cast symbol to string
bare-type-predicates Bare type predicates
box Box a value
bytes-class Human readable memory sizes
call2 Create a call
call_args Extract arguments from a call
call_inspect Inspect a call
call_match Match supplied arguments to function definition
call_modify Modify the arguments of a call
call_name Extract function name or namespace of a call
caller_arg Find the caller argument for error messages
catch_cnd Catch a condition
check_dots_empty Check that dots are empty
check_dots_unnamed Check that all dots are unnamed
check_dots_used Check that all dots have been used
check_exclusive Check that arguments are mutually exclusive
check_required Check that argument is supplied
cnd_inherits Does a condition or its ancestors inherit from
a class?
cnd_message Build an error message from parts
cnd_signal Signal a condition object
done Box a final value for early termination
dot-data '.data' and '.env' pronouns
dyn-dots Dynamic dots features
embrace-operator Embrace operator {{
empty_env Get the empty environment
englue Defuse function arguments with glue
enquo Defuse function arguments
env Create a new environment
env_bind Bind symbols to objects in an environment
env_browse Browse environments
env_cache Cache a value in an environment
env_clone Clone or coalesce an environment
env_depth Depth of an environment chain
env_get Get an object in an environment
env_has Does an environment have or see bindings?
env_inherits Does environment inherit from another
environment?
env_is_user_facing Is frame environment user facing?
env_name Label of an environment
env_names Names and numbers of symbols bound in an
environment
env_parent Get parent environments
env_poke Poke an object in an environment
env_print Pretty-print an environment
env_unbind Remove bindings from an environment
eval_bare Evaluate an expression in an environment
eval_tidy Evaluate an expression with quosures and
pronoun support
exec Execute a function
expr Defuse an R expression
expr_print Print an expression
exprs_auto_name Ensure that all elements of a list of
expressions are named
f_rhs Get or set formula components
f_text Turn RHS of formula into a string or label
faq-options Global options for rlang
fn_body Get or set function body
fn_env Return the closure environment of a function
fn_fmls Extract arguments from a function
format_error_bullets Format bullets for error messages
get_env Get or set the environment of an object
global_entrace Entrace unexpected errors
global_handle Register default global handlers
global_prompt_install Prompt user to install missing packages
glue-operators Name injection with '"{"' and '"{{"'
has_name Does an object have an element with this name?
hash Hashing
inherits_any Does an object inherit from a set of classes?
inject Inject objects in an R expression
injection-operator Injection operator !!
is_call Is object a call?
is_empty Is object an empty vector or NULL?
is_environment Is object an environment?
is_expression Is an object an expression?
is_formula Is object a formula?
is_function Is object a function?
is_installed Are packages installed in any of the libraries?
is_integerish Is a vector integer-like?
is_interactive Is R running interactively?
is_named Is object named?
is_namespace Is an object a namespace environment?
is_symbol Is object a symbol?
is_true Is object identical to TRUE or FALSE?
is_weakref Is object a weak reference?
last_error Last 'abort()' error
last_warnings Display last messages and warnings
list2 Collect dynamic dots in a list
local_bindings Temporarily change bindings of an environment
local_error_call Set local error call in an execution
environment
local_options Change global options
missing_arg Generate or handle a missing argument
names2 Get names of a vector
new_formula Create a formula
new_function Create a function
new_quosure Create a quosure from components
new_quosures Create a list of quosures
new_weakref Create a weak reference
on_load Run expressions on load
op-get-attr Infix attribute accessor and setter
op-null-default Default value for 'NULL'
pairlist2 Collect dynamic dots in a pairlist
parse_expr Parse R code
qq_show Show injected expression
quo_squash Squash a quosure
quosure-tools Quosure getters, setters and predicates
rep_along Create vectors matching the length of a given
vector
rlang_backtrace_on_error
Display backtrace on error
rlang_error Errors of class 'rlang_error'
scalar-type-predicates
Scalar type predicates
seq2 Increasing sequence of integers in an interval
set_names Set names of a vector
splice Splice values at dots collection time
splice-operator Splice operator !!!
stack Get properties of the current or caller frame
sym Create a symbol or list of symbols
trace_back Capture a backtrace
try_fetch Try an expression with condition handlers
type-predicates Type predicates
vector-construction Create vectors
wref_key Get key/value from a weak reference object
zap Create zap objects
zap_srcref Zap source references