ListTalk Base Environment

%self-slot

Kind

macro

Binding

constant

Lambda list

(ListTalk-implementation:slot-name)

*

Kind

primitive

Binding

constant

Lambda list

(n (%self-slot ..))

Return product of numeric arguments.

+

Kind

primitive

Binding

constant

Lambda list

(n (%self-slot ..))

Return sum of numeric arguments.

-

Kind

primitive

Binding

constant

Lambda list

(n (send n :...))

Negate one value or subtract remaining values from first.

/

Kind

primitive

Binding

constant

Lambda list

(n n (%self-slot ..))

Divide first value by remaining values.

<

Kind

primitive

Binding

constant

Lambda list

(n n (%self-slot ..))

Return true when numeric arguments are in strictly ascending order.

<=

Kind

primitive

Binding

constant

Lambda list

(n n (%self-slot ..))

Return true when numeric arguments are in non-descending order.

=

Kind

primitive

Binding

constant

Lambda list

(n n (%self-slot ..))

Return true when all numeric arguments are equal.

>

Kind

primitive

Binding

constant

Lambda list

(n n (%self-slot ..))

Return true when numeric arguments are in strictly descending order.

>=

Kind

primitive

Binding

constant

Lambda list

(n n (%self-slot ..))

Return true when numeric arguments are in non-ascending order.

BigInteger

Kind

class

Binding

constant

Arbitrary-precision exact integer value.

Direct methods

None.

Direct class methods

None.

BindingDescriptor

Kind

class

Binding

constant

Immutable description of an environment binding.

Direct methods

• :< (self ListTalk-implementation:other)
• :<= (self ListTalk-implementation:other)
• :> (self ListTalk-implementation:other)
• :>= (self ListTalk-implementation:other)
• :compareWith: (self ListTalk-implementation:other)
• :constant? (self)

  Return true when binding is constant.

• :flags (self)

  Return binding flags.

• :symbol (self)

  Return binding symbol.

• :value (self)

  Return binding value.

Direct class methods

None.

Boolean

Kind

class

Binding

constant

Truth values #true and #false.

Direct methods

None.

Direct class methods

None.

ByteVector

Kind

class

Binding

constant

Mutable indexed sequence of bytes.

Direct methods

• :< (self other)

  Return true when receiver is lexicographically less than argument.

• :<= (self other)

  Return true when receiver is lexicographically less than or equal to argument.

• :> (self other)

  Return true when receiver is lexicographically greater than argument.

• :>= (self other)

  Return true when receiver is lexicographically greater than or equal to argument.

• :append: (self other)

  Return a new bytevector with other appended.

• :asList (self)

  Return bytevector bytes as a list of unsigned fixnums.

• :asString (self)

  Return a string decoded from this bytevector.

• :at: (self index)

  Return byte at index as an unsigned fixnum.

• :at:put: (self index byte)

  Set byte at index and return byte as an unsigned fixnum.

• :compareWith: (self other)

  Return -1, 0, or 1 when receiver is lexicographically less than, equal to, or greater than argument.

• :from:to: (self from to)

  Return a bytevector slice using half-open byte indexes.

• :length (self)

  Return bytevector length in bytes.

• :splitLines (self)

  Return bytevector lines without line terminators.

• :writeToFile: (self filename)

  Write bytevector to a file atomically and return filename.

Direct class methods

• :fromFile: (self filename)

  Return file contents as a bytevector.

Character

Kind

class

Binding

constant

Unicode scalar character value.

Direct methods

• :asString (self)

  Return receiver encoded as a one-character UTF-8 string.

Direct class methods

None.

Class

Kind

class

Binding

constant

Runtime representation of classes and metaclasses.

Direct methods

• :>> (self selector)

  Return direct method for selector or nil.

• :addMethod:withSelector: (self method selector)

  Add direct method for selector.

• :allMethodsAsList (self)

  Return most-specific direct and inherited method descriptors as a list.

• :allMethodsDo: (self callable)

  Call callable for each most-specific method descriptor.

• :allSelectors (self)

  Return direct and inherited method selectors.

• :allSelectorsAsList (self)

  Return direct and inherited method selectors as a list.

• :alloc (self)

  Allocate empty instance for allocatable class.

• :documentation (self)

  Return class documentation.

• :lookupSelector: (self selector)

  Return resolved method for selector or nil.

• :methodsAsList (self)

  Return direct method descriptors as a list.

• :methodsDo: (self callable)

  Call callable for each direct method descriptor.

• :precedenceList (self)

  Return class precedence list.

• :selectors (self)

  Return direct method selectors.

• :selectorsAsList (self)

  Return direct method selectors as a list.

• :slots (self)

  Return class slot names.

Direct class methods

None.

Closure

Kind

class

Binding

constant

Callable function object with captured environment.

Direct methods

• :arguments (self)

  Return closure parameter list.

• :documentation (self)

  Return closure documentation.

Direct class methods

None.

ComplexNumber

Kind

class

Binding

constant

Abstract root for complex numeric values.

Direct methods

• :imaginary (self)

  Return receiver's imaginary component. Subclasses must implement this method.

• :real (self)

  Return receiver's real component. Subclasses must implement this method.

Direct class methods

None.

CompoundForm

Kind

class

Binding

constant

Abstract root for compound syntactic and callable forms.

Direct methods

• :arguments (self)

  Return compound form argument documentation. Subclasses must implement this method.

• :documentation (self)

  Return compound form documentation. Subclasses must implement this method.

Direct class methods

None.

Condition

Kind

class

Binding

constant

Base class for signaled conditions.

Direct methods

None.

Direct class methods

None.

DateTime

Kind

class

Binding

constant

Calendar date and wall-clock time.

Direct methods

• :asISO8601 (self)

  Return receiver formatted as ISO8601 text. Subclasses must implement this method.

• :asISO8601WithSeparator: (self separator)

  Return receiver formatted as ISO8601 text with separator. Subclasses must implement this method.

• :asInstant (self)

  Return receiver converted to an Instant. Subclasses must implement this method.

• :day (self)

  Return date-time day. Subclasses must implement this method.

• :hour (self)

  Return date-time hour. Subclasses must implement this method.

• :microsecond (self)

  Return date-time microsecond. Subclasses must implement this method.

• :minute (self)

  Return date-time minute. Subclasses must implement this method.

• :month (self)

  Return date-time month. Subclasses must implement this method.

• :second (self)

  Return date-time second. Subclasses must implement this method.

• :year (self)

  Return date-time year. Subclasses must implement this method.

Direct class methods

None.

Dictionary

Kind

class

Binding

constant

Mutable mapping from keys to values.

Direct methods

• :at:put: (self key value)

  Set value for key and return value.

• :remove: (self key)

  Remove key and return its value, or nil when key is absent.

Direct class methods

• :new (self)

  Return a new empty dictionary.

• :newFromAList: (self alist)

  Return a dictionary initialized from an association list.

Duration

Kind

class

Binding

constant

Signed span of time.

Direct methods

• :+ (self duration-or-instant)

  Add a duration or advance an instant by receiver.

• :- (self other)

  Return difference of receiver and another duration.

• :addDuration: (self other)

  Return sum of receiver and another duration.

• :asMicroseconds (self)

  Return receiver as microseconds.

• :asSeconds (self)

  Return receiver as seconds.

• :substractDuration: (self other)

  Return difference of receiver and another duration.

Direct class methods

• :fromMicroseconds: (self microseconds)

  Return a duration from microseconds.

• :fromSeconds: (self seconds)

  Return a duration from seconds.

DynamicVariable

Kind

class

Binding

constant

Dynamically scoped variable binding.

Direct methods

• :value (self)

  Return the current dynamic value or the default value.

• :value: (self value)

  Set the current thread dynamic value.

Direct class methods

• :new: (self defaultValue)

  Create a dynamic variable with default value.

Environment

Kind

class

Binding

constant

Mapping from names to values during evaluation.

Direct methods

• :at: (self symbol)

  Return symbol value, or nil when symbol is unbound.

• :at:put: (self symbol value)

  Bind symbol to value in this environment and return value.

• :at:putConstant: (self symbol value)

  Bind symbol to a constant value in this environment and return value.

• :bindingsAsList (self)

  Return direct binding reflections as a list.

• :bindingsDo: (self callable)

  Call callable for each direct binding reflection.

• :constant?: (self symbol)

  Return true when symbol resolves to a constant binding.

• :contains?: (self symbol)

  Return true when symbol is bound in this environment or its parents.

Direct class methods

• :new (self)

  Return a new empty environment.

• :newBase (self)

  Return a new base environment.

• :newWithParent: (self parent)

  Return a new environment with parent.

• :sharedBase (self)

  Return the shared base environment.

Error

Kind

class

Binding

constant

Fatal condition reported to handlers.

Direct methods

None.

Direct class methods

None.

ExactComplexNumber

Kind

class

Binding

constant

Complex number with exact real and imaginary parts.

Direct methods

• :imaginary (self)

  Return receiver's imaginary component.

• :real (self)

  Return receiver's real component.

Direct class methods

None.

FileStream

Kind

class

Binding

constant

Stream backed by a file descriptor.

Direct methods

• :close (self)

  Close stream.

• :flush (self)

  Flush buffered stream data.

• :isClosed (self)

  Return true when file stream is closed.

• :isReadable (self)

  Return true when file stream supports reading.

• :isWritable (self)

  Return true when file stream supports writing.

• :readByte (self)

  Read one byte as an unsigned fixnum, or nil at EOF.

• :readByteVector (self)

  Read remaining stream bytes into a bytevector.

• :readBytes: (self length)

  Read up to length bytes.

• :readLine (self)

  Read a line without its line terminator.

• :readString (self)

  Read remaining stream bytes as UTF-8 text with normalized line endings.

• :seek: (self offset)

  Seek from current stream position.

• :seekFromEnd: (self offset)

  Seek from end of stream.

• :seekFromStart: (self offset)

  Seek from start of stream.

• :writeByte: (self byte)

  Write one byte.

• :writeByteVector: (self bytevector)

  Write bytevector bytes.

• :writeCharacter: (self character)

  Write one character as UTF-8.

• :writeLn (self)

  Write a line feed byte.

• :writeString: (self string)

  Write string UTF-8 bytes.

Direct class methods

• :new: (self filename)

  Open a file stream.

• :newForAppending: (self filename)

  Open a file stream.

• :newForInput: (self filename)

  Open a file stream.

• :newForOutput: (self filename)

  Open a file stream.

Float

Kind

class

Binding

constant

Inexact floating-point real number.

Direct methods

None.

Direct class methods

None.

Fraction

Kind

class

Binding

constant

Exact rational number with arbitrary-precision parts.

Direct methods

None.

Direct class methods

None.

Function

Kind

class

Binding

constant

Abstract root for callable functions.

Direct methods

None.

Direct class methods

None.

IdentityDictionary

Kind

class

Binding

constant

Dictionary whose keys are compared by identity.

Direct methods

• :asAList (self)

  Return dictionary entries as an association list.

• :at: (self key)

  Return value for key, or nil when key is absent.

• :at:put: (self key value)

  Set value for key and return value.

• :contains?: (self key)

  Return true when dictionary contains key.

• :forEach: (self callable)

  Apply callable to each key and value, and return nil.

• :map: (self callable)

  Return list of callable results for each key and value.

• :remove: (self key)

  Remove key and return its value, or nil when key is absent.

• :size (self)

  Return dictionary size.

Direct class methods

• :new (self)

  Return a new empty identity dictionary.

• :newFromAList: (self alist)

  Return an identity dictionary initialized from an association list.

IdentitySet

Kind

class

Binding

constant

Set of unique values compared by identity.

Direct methods

None.

Direct class methods

• :fromList: (self list)

  Return an identity set containing the unique identities of list.

• :new (self)

  Return a new empty identity set.

ImmutableDictionary

Kind

class

Binding

constant

Immutable mapping from keys to values.

Direct methods

• :asAList (self)

  Return dictionary entries as an association list.

• :at: (self key)

  Return value for key, or nil when key is absent.

• :contains?: (self key)

  Return true when dictionary contains key.

• :forEach: (self callable)

  Apply callable to each key and value, and return nil.

• :map: (self callable)

  Return list of callable results for each key and value.

• :size (self)

  Return dictionary size.

Direct class methods

• :new (self)

  Return a new empty immutable dictionary.

• :newFromAList: (self alist)

  Return an immutable dictionary initialized from an association list.

ImmutableList

Kind

class

Binding

constant

Immutable linked list node.

Direct methods

• :car (self)

  Return immutable list car.

• :cdr (self)

  Return immutable list cdr.

Direct class methods

• :fromList: (self list)

  Return an immutable list copy of list.

IncompleteInputSyntaxError

Kind

class

Binding

constant

Reader error for syntactically incomplete input.

Direct methods

None.

Direct class methods

None.

InexactComplexNumber

Kind

class

Binding

constant

Complex number with inexact real and imaginary parts.

Direct methods

• :imaginary (self)

  Return receiver's imaginary component.

• :real (self)

  Return receiver's real component.

Direct class methods

None.

Instant

Kind

class

Binding

constant

Absolute point in time.

Direct methods

• :+ (self duration)

  Return receiver advanced by duration.

• :- (self duration-or-instant)

  Subtract a duration or return duration since another instant.

• :afterDuration: (self duration)

  Return receiver advanced by duration.

• :asMicroseconds (self)

  Return receiver as UTC microseconds since the Unix epoch.

• :asSeconds (self)

  Return receiver as UTC seconds since the Unix epoch.

• :beforeDuration: (self duration)

  Return receiver moved backward by duration.

• :durationSince: (self other)

  Return duration from other instant to receiver.

• :durationUntil: (self other)

  Return duration from receiver to other instant.

Direct class methods

• :fromMicroseconds: (self microseconds)

  Return an instant from UTC microseconds since the Unix epoch.

• :fromSeconds: (self seconds)

  Return an instant from UTC seconds since the Unix epoch.

• :now (self)

  Return the current instant.

Integer

Kind

class

Binding

constant

Abstract root for exact integer values.

Direct methods

• :toBytes (self)

  Return the shortest big-endian unsigned byte representation of receiver.

• :toBytes: (self byte-count)

  Return a big-endian unsigned byte representation with byte-count bytes.

• :toTwosComplement (self)

  Return the shortest big-endian two's-complement byte representation of receiver.

• :toTwosComplement: (self byte-count)

  Return a big-endian two's-complement byte representation with byte-count bytes.

Direct class methods

• :fromBytes: (self bytevector)

  Return an integer decoded from big-endian unsigned bytes.

• :fromTwosComplement: (self bytevector)

  Return an integer decoded from big-endian two's-complement bytes.

InvocationContextKind

Kind

class

Binding

constant

Kind tag for invocation context records.

Direct methods

None.

Direct class methods

None.

List

Kind

class

Binding

constant

Abstract root for linked list values.

Direct methods

• :any: (self callable)

  Return true when callable returns truthy for any element.

• :asList (self)

  Return receiver.

• :at: (self index)

  Return list item at index.

• :every: (self callable)

  Return true when callable returns truthy for every element.

• :forEach: (self callable)

  Apply callable to each element and return nil.

• :inject:into: (self initial callable)

  Fold list from the left with initial value and callable.

• :length (self)

  Return list length.

• :map: (self callable)

  Return list of callable results for each element.

• :reduce: (self callable)

  Reduce list from the left with callable.

• :sort (self)

  Return a fresh list sorted with element compareWith:.

• :sortUsing: (self callable)

  Return a fresh list sorted with a two-argument comparator.

Direct class methods

None.

Macro

Kind

class

Binding

constant

Source transformation invoked during evaluation.

Direct methods

• :arguments (self)
• :documentation (self)

Direct class methods

None.

Message

Kind

class

Binding

constant

Object message selector and arguments.

Direct methods

• :arguments (self)

  Return message arguments.

• :receiver (self)

  Return message receiver.

• :selector (self)

  Return message selector.

Direct class methods

None.

MethodDescriptor

Kind

class

Binding

constant

Immutable description of a class method.

Direct methods

• :< (self ListTalk-implementation:other)
• :<= (self ListTalk-implementation:other)
• :> (self ListTalk-implementation:other)
• :>= (self ListTalk-implementation:other)
• :callable (self)

  Return method callable.

• :compareWith: (self ListTalk-implementation:other)
• :implementing-class (self)

  Return class that directly implements the method.

• :selector (self)

  Return method selector.

Direct class methods

None.

MutablePair

Kind

class

Binding

constant

Mutable cons pair containing car and cdr.

Direct methods

• :car: (self value)

  Set pair car.

• :cdr: (self value)

  Set pair cdr.

Direct class methods

None.

Nil

Kind

class

Binding

constant

The distinguished empty-list and falsey nil value.

Direct methods

None.

Direct class methods

None.

Number

Kind

class

Binding

constant

Abstract root for numeric values.

Direct methods

• :* (self other)

  Return product of receiver and argument.

• :+ (self other)

  Return sum of receiver and argument.

• :- (self other)

  Return difference of receiver and argument.

• :/ (self other)

  Return quotient of receiver divided by argument.

• :< (self other)

  Return true when receiver is less than argument.

• :<= (self other)

  Return true when receiver is less than or equal to argument.

• := (self other)

  Return true when receiver equals argument numerically.

• :> (self other)

  Return true when receiver is greater than argument.

• :>= (self other)

  Return true when receiver is greater than or equal to argument.

• :abs (self)

  Return receiver's magnitude.

• :asString (self)

  Return receiver formatted as a string.

• :ceiling (self)

  Return least integer not less than receiver.

• :compareWith: (self other)

  Return -1, 0, or 1 when receiver is less than, equal to, or greater than argument.

• :cos (self)

  Return cosine of receiver.

• :expt (self)

  Return e raised to receiver.

• :expt: (self exponent)

  Return receiver raised to exponent.

• :floor (self)

  Return greatest integer not greater than receiver.

• :log (self)

  Return natural logarithm of receiver.

• :max: (self other)

  Return larger of receiver and argument.

• :min: (self other)

  Return smaller of receiver and argument.

• :negative? (self)

  Return true when receiver is less than zero.

• :phase (self)

  Return receiver's principal phase angle.

• :positive? (self)

  Return true when receiver is greater than zero.

• :round (self)

  Return nearest integer to receiver, rounding halfway values away from zero.

• :sin (self)

  Return sine of receiver.

• :sqrt (self)

  Return principal square root of receiver.

• :tan (self)

  Return tangent of receiver.

• :truncate (self)

  Return receiver truncated toward zero as an integer.

• :zero? (self)

  Return true when receiver is numerically zero.

Direct class methods

None.

Object

Kind

class

Binding

constant

Root of the object hierarchy.

Direct methods

• := (self other)

  Return true when receiver and argument are structurally equal (equal?).

• :== (self other)

  Return true when receiver and argument are identical (same object).

• :asString (self)

  Return receiver debug-printed as a string.

• :class (self)

  Return receiver class.

• :doesNotUnderstand: (self message)

  Signal that the receiver does not understand message.

• :slot: (self slot)

  Read receiver slot.

• :slot:put: (self slot value)

  Write receiver slot.

• :subclassResponsibility (self)

  Signal that the receiver's class must implement this method. Subclasses must implement this method.

Direct class methods

None.

Package

Kind

class

Binding

constant

Namespace for interned symbols.

Direct methods

• :< (self other)

  Return true when receiver name is lexicographically less than argument name.

• :<= (self other)

  Return true when receiver name is lexicographically less than or equal to argument name.

• :> (self other)

  Return true when receiver name is lexicographically greater than argument name.

• :>= (self other)

  Return true when receiver name is lexicographically greater than or equal to argument name.

• :compareWith: (self other)

  Return -1, 0, or 1 when receiver name is lexicographically less than, equal to, or greater than argument name.

• :name (self)

  Return package name.

• :symbolsAsList (self)

  Return local interned symbols as a list.

• :symbolsDo: (self callable)

  Call callable for each local interned symbol.

Direct class methods

• :find: (self name)

  Return package with the provided name, or nil when no such package exists.

• :named: (self name)

  Return package with the provided name, creating it when needed.

• :packagesAsList (self)

  Return packages as a list.

• :packagesDo: (self callable)

  Call callable for each package.

Pair

Kind

class

Binding

constant

Immutable cons pair containing car and cdr.

Direct methods

• :car (self)

  Return pair car.

• :cdr (self)

  Return pair cdr.

Direct class methods

None.

Primitive

Kind

class

Binding

constant

Callable function implemented in native code.

Direct methods

• :arguments (self)

  Return primitive argument list, or the raw argument string if it cannot be read.

• :documentation (self)

  Return primitive documentation.

Direct class methods

None.

Printer

Kind

class

Binding

constant

Renderer for printing ListTalk values.

Direct methods

None.

Direct class methods

None.

RationalNumber

Kind

class

Binding

constant

Abstract root for exact rational numbers.

Direct methods

None.

Direct class methods

None.

Reader

Kind

class

Binding

constant

Parser for ListTalk source forms.

Direct methods

None.

Direct class methods

None.

ReaderError

Kind

class

Binding

constant

Error signaled while reading source text.

Direct methods

None.

Direct class methods

None.

RealNumber

Kind

class

Binding

constant

Abstract root for real numeric values.

Direct methods

• :asFloat (self)

  Return receiver converted to a float.

Direct class methods

None.

Set

Kind

class

Binding

constant

Collection of unique values compared by equality.

Direct methods

• :any: (self callable)

  Return true when callable returns truthy for any element.

• :asList (self)

  Return set elements as a list.

• :contains?: (self value)

  Return true when set contains value.

• :every: (self callable)

  Return true when callable returns truthy for every element.

• :forEach: (self callable)

  Apply callable to each element and return nil.

• :inject:into: (self initial callable)

  Fold set with initial value and callable.

• :put: (self value)

  Add value to set and return it.

• :reduce: (self callable)

  Reduce set with callable.

Direct class methods

• :fromList: (self list)

  Return a set containing the unique elements of list.

• :new (self)

  Return a new empty set.

SmallFraction

Kind

class

Binding

constant

Compact exact rational number with small integer parts.

Direct methods

None.

Direct class methods

None.

SmallInteger

Kind

class

Binding

constant

Immediate exact integer value fitting in a machine word.

Direct methods

None.

Direct class methods

None.

SpecialForm

Kind

class

Binding

constant

Evaluator form with special argument rules.

Direct methods

• :arguments (self)

  Return special form argument list, or the raw argument string if it cannot be read.

• :documentation (self)

  Return special form documentation.

Direct class methods

None.

Stream

Kind

class

Binding

constant

Abstract input and output byte stream.

Direct methods

• :close (self)

  Close stream. Subclasses must implement this method.

• :flush (self)

  Flush buffered stream data. Subclasses must implement this method.

• :isClosed (self)

  Return true when stream is closed.

• :isReadable (self)

  Return true when stream supports reading.

• :isWritable (self)

  Return true when stream supports writing.

• :readByte (self)

  Read one byte as an unsigned fixnum, or nil at EOF. Subclasses must implement this method.

• :readByteVector (self)

  Read remaining stream bytes into a bytevector. Subclasses must implement this method.

• :readBytes: (self length)

  Read up to length bytes. Subclasses must implement this method.

• :readLine (self)

  Read a line without its line terminator. Subclasses must implement this method.

• :readString (self)

  Read remaining stream bytes as UTF-8 text with normalized line endings. Subclasses must implement this method.

• :seek: (self offset)

  Seek from current stream position. Subclasses must implement this method.

• :seekFromEnd: (self offset)

  Seek from end of stream. Subclasses must implement this method.

• :seekFromStart: (self offset)

  Seek from start of stream. Subclasses must implement this method.

• :writeByte: (self byte)

  Write one byte. Subclasses must implement this method.

• :writeByteVector: (self bytevector)

  Write bytevector bytes. Subclasses must implement this method.

• :writeCharacter: (self character)

  Write one character as UTF-8. Subclasses must implement this method.

• :writeLn (self)

  Write a line feed byte. Subclasses must implement this method.

• :writeString: (self string)

  Write string UTF-8 bytes. Subclasses must implement this method.

Direct class methods

None.

String

Kind

class

Binding

constant

Immutable UTF-8 text string.

Direct methods

• :< (self other)

  Return true when receiver is lexicographically less than argument.

• :<= (self other)

  Return true when receiver is lexicographically less than or equal to argument.

• :> (self other)

  Return true when receiver is lexicographically greater than argument.

• :>= (self other)

  Return true when receiver is lexicographically greater than or equal to argument.

• :append: (self other)

  Return a new string with other appended.

• :asByteVector (self)

  Return a bytevector containing string UTF-8 bytes.

• :asList (self)

  Return string characters as a list.

• :asString (self)

  Return receiver.

• :at: (self index)

  Return Unicode character at index.

• :compareWith: (self other)

  Return -1, 0, or 1 when receiver is lexicographically less than, equal to, or greater than argument.

• :contains?: (self needle)

  Return true when string contains needle.

• :find: (self needle)

  Return first codepoint index of needle, or nil when absent.

• :findAll: (self needle)

  Return all codepoint indices where needle occurs.

• :from:to: (self from to)

  Return a substring using half-open Unicode code point indexes.

• :join: (self strings)

  Join a list of strings using self as the delimiter.

• :length (self)

  Return string length in Unicode code points.

• :mapCharacters: (self dictionary)

  Return a new string mapping characters through a dictionary.

• :replace:with: (self needle replacement)

  Return a new string replacing all occurrences of needle with replacement.

• :replaceFirst:with: (self needle replacement)

  Return a new string replacing the first occurrence of needle with replacement.

• :splitLines (self)

  Return string lines without line terminators.

• :splitOn: (self delimiters)

  Return substrings split on a delimiter character, delimiter string, or set of characters.

• :splitOn:do: (self delimiters callable)

  Call callable for substrings split on a delimiter character, delimiter string, or set of characters.

• :startsWith?: (self prefix)

  Return true when string starts with prefix.

• :substringFrom:to: (self from to)

  Return a substring using half-open Unicode code point indexes.

• :substrings (self)

  Return non-empty substrings split on whitespace.

• :substrings: (self delimiter)

  Return substrings split on delimiter string, including empty substrings.

• :substrings:do: (self delimiter callable)

  Call callable for each substring split on delimiter string.

• :substringsDo: (self callable)

  Call callable for each non-empty substring split on whitespace.

• :writeToFile: (self filename)

  Write string to a file atomically and return filename.

Direct class methods

• :fromFile: (self filename)

  Return file contents as a string.

SubclassResponsibilityError

Kind

class

Binding

constant

Error signaled when an abstract method is not overridden.

Direct methods

None.

Direct class methods

None.

Symbol

Kind

class

Binding

constant

Interned symbolic name.

Direct methods

• :< (self other)

  Return true when receiver sorts before argument by package then local name.

• :<= (self other)

  Return true when receiver sorts before or with argument by package then local name.

• :> (self other)

  Return true when receiver sorts after argument by package then local name.

• :>= (self other)

  Return true when receiver sorts after or with argument by package then local name.

• :compareWith: (self other)

  Return -1, 0, or 1 when receiver sorts before, with, or after argument by package then local name.

• :keyword? (self)

  Return true when symbol is in the keyword package.

• :name (self)

  Return symbol name as string.

• :nameStartsWith?: (self prefix)

  Return true when symbol name starts with prefix.

• :package (self)

  Return symbol package, or nil for uninterned symbols.

Direct class methods

• :gensym (self [name])

  Return a fresh gensym or named uninterned symbol.

• :intern:in: (self name package)

  Return interned symbol with name in package.

• :keyword: (self name)

  Return interned keyword symbol with name.

• :uninterned: (self name)

  Return a fresh uninterned symbol with the provided name.

SystemError

Kind

class

Binding

constant

Error representing an operating system failure.

Direct methods

None.

Direct class methods

None.

UTCDateTime

Kind

class

Binding

constant

Calendar date and time in UTC.

Direct methods

• :asISO8601 (self)

  Return receiver formatted as ISO8601 UTC text.

• :asISO8601WithSeparator: (self separator)

  Return receiver formatted as ISO8601 UTC text with separator.

• :asInstant (self)

  Return receiver converted to an Instant.

• :day (self)

  Return UTC date-time day.

• :hour (self)

  Return UTC date-time hour.

• :microsecond (self)

  Return UTC date-time microsecond.

• :minute (self)

  Return UTC date-time minute.

• :month (self)

  Return UTC date-time month.

• :second (self)

  Return UTC date-time second.

• :year (self)

  Return UTC date-time year.

Direct class methods

• :fromISO8601: (self string)

  Return UTC date-time parsed from simple ISO8601 text.

• :fromInstant: (self instant)

  Return UTC date-time representing instant.

• :fromYear:month:day:hour:minute:second:microsecond: (self year month day hour minute second microsecond)

  Return UTC date-time from component fields.

Vector

Kind

class

Binding

constant

Mutable indexed sequence of object values.

Direct methods

• :asList (self)

  Return vector elements as a list.

• :at: (self index)

  Return vector item at index.

• :at:put: (self index value)

  Set vector item at index.

• :length (self)

  Return vector length.

• :sort (self)

  Return a fresh vector sorted with element compareWith:.

• :sortUsing: (self callable)

  Return a fresh vector sorted with a two-argument comparator.

Direct class methods

None.

Warning

Kind

class

Binding

constant

Non-fatal condition reported to handlers.

Direct methods

None.

Direct class methods

None.

WeakIdentitySet

Kind

class

Binding

constant

Identity set that does not keep members alive.

Direct methods

None.

Direct class methods

• :fromList: (self list)

  Return a weak identity set containing the unique identities of list.

• :new (self)

  Return a new empty weak identity set.

WeakKeyIdentityDictionary

Kind

class

Binding

constant

Identity dictionary that does not keep keys alive.

Direct methods

None.

Direct class methods

• :new (self)

  Return a new empty weak-key identity dictionary.

• :newFromAList: (self alist)

  Return a weak-key identity dictionary initialized from an association list.

WeakReference

Kind

class

Binding

constant

Reference that does not keep its target alive.

Direct methods

• :alive? (self)

  Return true when referenced value is still alive.

• :value (self)

  Return referenced value or signal an error if it is no longer alive.

• :value: (self value)

  Set referenced value.

Direct class methods

• :new: (self value)

  Create a weak reference to value.

WeakValueIdentityDictionary

Kind

class

Binding

constant

Identity dictionary that does not keep values alive.

Direct methods

None.

Direct class methods

• :new (self)

  Return a new empty weak-value identity dictionary.

• :newFromAList: (self alist)

  Return a weak-value identity dictionary initialized from an association list.

abs

Kind

primitive

Binding

constant

Lambda list

(x)

Return magnitude of a number.

alist->plist

Kind

primitive

Binding

constant

Lambda list

(alist)

Return property list converted from association list.

and

Kind

special form

Binding

constant

Lambda list

(expression (%self-slot ..))

Evaluate expressions until one is falsey, else return last value.

any

Kind

primitive

Binding

constant

Lambda list

(callable list list (%self-slot ..))

Return true when callable returns truthy for any element tuple.

append

Kind

primitive

Binding

constant

Lambda list

(list (%self-slot ..))

Concatenate lists, sharing the final argument tail.

apply

Kind

primitive

Binding

constant

Lambda list

(callable arguments)

Apply callable to argument list.

assoc

Kind

primitive

Binding

constant

Lambda list

(key alist)

Return matching pair in alist by structural equality, else false.

assq

Kind

primitive

Binding

constant

Lambda list

(key alist)

Return matching pair in alist by identity equality, else false.

assv

Kind

primitive

Binding

constant

Lambda list

(key alist)

Return matching pair in alist by eqv? semantics, else false.

begin

Kind

special form

Binding

constant

Lambda list

(body (%self-slot ..))

Evaluate body forms in order in the current environment.

boolean?

Kind

primitive

Binding

constant

Lambda list

(value)

Return true when value is a boolean.

bytevector

Kind

primitive

Binding

constant

Lambda list

(byte (%self-slot ..))

Create bytevector from unsigned byte fixnums.

bytevector->string

Kind

primitive

Binding

constant

Lambda list

(bytevector)

Return a string decoded from bytevector bytes.

bytevector-append

Kind

primitive

Binding

constant

Lambda list

(bytevector (%self-slot ..))

Concatenate all bytevector arguments.

bytevector-copy

Kind

primitive

Binding

constant

Lambda list

(bytevector [from [to]])

Return a bytevector slice using half-open byte indexes.

bytevector-length

Kind

primitive

Binding

constant

Lambda list

(bytevector)

Return bytevector length in bytes as fixnum.

bytevector-u8-ref

Kind

primitive

Binding

constant

Lambda list

(bytevector index)

Return byte at index as an unsigned fixnum.

bytevector-u8-set!

Kind

primitive

Binding

constant

Lambda list

(bytevector index byte)

Set byte at index and return byte as an unsigned fixnum.

bytevector?

Kind

primitive

Binding

constant

Lambda list

(value)

Return true when value is a bytevector.

caaaar

Kind

primitive

Binding

constant

Lambda list

(pair)

Return pair navigation primitive result.

caaadr

Kind

primitive

Binding

constant

Lambda list

(pair)

Return pair navigation primitive result.

caaar

Kind

primitive

Binding

constant

Lambda list

(pair)

Return pair navigation primitive result.

caadar

Kind

primitive

Binding

constant

Lambda list

(pair)

Return pair navigation primitive result.

caaddr

Kind

primitive

Binding

constant

Lambda list

(pair)

Return pair navigation primitive result.

caadr

Kind

primitive

Binding

constant

Lambda list

(pair)

Return pair navigation primitive result.

caar

Kind

primitive

Binding

constant

Lambda list

(pair)

Return pair navigation primitive result.

cadaar

Kind

primitive

Binding

constant

Lambda list

(pair)

Return pair navigation primitive result.

cadadr

Kind

primitive

Binding

constant

Lambda list

(pair)

Return pair navigation primitive result.

cadar

Kind

primitive

Binding

constant

Lambda list

(pair)

Return pair navigation primitive result.

caddar

Kind

primitive

Binding

constant

Lambda list

(pair)

Return pair navigation primitive result.

cadddr

Kind

primitive

Binding

constant

Lambda list

(pair)

Return pair navigation primitive result.

caddr

Kind

primitive

Binding

constant

Lambda list

(pair)

Return pair navigation primitive result.

cadr

Kind

primitive

Binding

constant

Lambda list

(pair)

Return pair navigation primitive result.

car

Kind

primitive

Binding

constant

Lambda list

(pair)

Return the car of pair.

catch

Kind

special form

Binding

constant

Lambda list

(tag-expression body (%self-slot ..))

Evaluate body and intercept throws matching tag.

cdaaar

Kind

primitive

Binding

constant

Lambda list

(pair)

Return pair navigation primitive result.

cdaadr

Kind

primitive

Binding

constant

Lambda list

(pair)

Return pair navigation primitive result.

cdaar

Kind

primitive

Binding

constant

Lambda list

(pair)

Return pair navigation primitive result.

cdadar

Kind

primitive

Binding

constant

Lambda list

(pair)

Return pair navigation primitive result.

cdaddr

Kind

primitive

Binding

constant

Lambda list

(pair)

Return pair navigation primitive result.

cdadr

Kind

primitive

Binding

constant

Lambda list

(pair)

Return pair navigation primitive result.

cdar

Kind

primitive

Binding

constant

Lambda list

(pair)

Return pair navigation primitive result.

cddaar

Kind

primitive

Binding

constant

Lambda list

(pair)

Return pair navigation primitive result.

cddadr

Kind

primitive

Binding

constant

Lambda list

(pair)

Return pair navigation primitive result.

cddar

Kind

primitive

Binding

constant

Lambda list

(pair)

Return pair navigation primitive result.

cdddar

Kind

primitive

Binding

constant

Lambda list

(pair)

Return pair navigation primitive result.

cddddr

Kind

primitive

Binding

constant

Lambda list

(pair)

Return pair navigation primitive result.

cdddr

Kind

primitive

Binding

constant

Lambda list

(pair)

Return pair navigation primitive result.

cddr

Kind

primitive

Binding

constant

Lambda list

(pair)

Return pair navigation primitive result.

cdr

Kind

primitive

Binding

constant

Lambda list

(pair)

Return the cdr of pair.

ceiling

Kind

primitive

Binding

constant

Lambda list

(x)

Return least integer not less than a real number.

character?

Kind

primitive

Binding

constant

Lambda list

(value)

Return true when value is a character.

class-slots

Kind

primitive

Binding

constant

Lambda list

(class)

Return list of slot names for class.

class?

Kind

primitive

Binding

constant

Lambda list

(value)

Return true when value is a class object.

closure?

Kind

primitive

Binding

constant

Lambda list

(value)

Return true when value is a closure.

complex?

Kind

primitive

Binding

constant

Lambda list

(value)

Return true when value is a complex number.

cond

Kind

special form

Binding

constant

Lambda list

((test body (%self-slot ..)) (%self-slot ..))

Evaluate the body of the first clause with a truthy test.

cons

Kind

primitive

Binding

constant

Lambda list

(car cdr)

Construct a pair from car and cdr.

cos

Kind

primitive

Binding

constant

Lambda list

(x)

Return cosine of a real number.

define

Kind

macro

Binding

constant

Lambda list

(ListTalk-implementation:target . body)

define-class

Kind

macro

Binding

constant

Lambda list

(name ListTalk-implementation:superclasses ListTalk-implementation:slot-names)

define-constructor

Kind

macro

Binding

constant

Lambda list

(ListTalk-implementation:signature . body)

define-macro

Kind

macro

Binding

mutable

Lambda list

(ListTalk-implementation:target . body)

define-method

Kind

macro

Binding

constant

Lambda list

(ListTalk-implementation:signature . body)

define-package

Kind

primitive

Binding

constant

Lambda list

(package-designator [used-package-or-(used-package nickname)] ...)

Define package and optionally add used packages.

display

Kind

primitive

Binding

constant

Lambda list

(value)

Print value and newline to standard output, then return it.

dynamic-let

Kind

macro

Binding

constant

Lambda list

(ListTalk-implementation:bindings . body)

environment?

Kind

primitive

Binding

constant

Lambda list

(value)

Return true when value is an environment.

eq?

Kind

primitive

Binding

constant

Lambda list

(left right (%self-slot ..))

Return true when all arguments are the same value identity.

equal?

Kind

primitive

Binding

constant

Lambda list

(left right (%self-slot ..))

Return true when all arguments are structurally equal.

eqv?

Kind

primitive

Binding

constant

Lambda list

(left right (%self-slot ..))

Return true when all arguments are numerically equivalent or identical.

error

Kind

primitive

Binding

constant

Lambda list

(message)

Signal error condition and abort unless intercepted.

eval

Kind

primitive

Binding

constant

Lambda list

(form environment)

Evaluate form using environment object.

every

Kind

primitive

Binding

constant

Lambda list

(callable list list (%self-slot ..))

Return true when callable returns truthy for every element tuple.

expt

Kind

primitive

Binding

constant

Lambda list

([base [exponent]])

Raise base to exponent, treat one argument as e^x, and return e with no arguments.

floor

Kind

primitive

Binding

constant

Lambda list

(x)

Return greatest integer not greater than a real number.

fold-expression

Kind

primitive

Binding

constant

Lambda list

(form environment)

Fold form with lexical constants from environment object.

fold-left

Kind

primitive

Binding

constant

Lambda list

(callable initial list list (%self-slot ..))

Fold callable from the left across element tuples, stopping at shortest list.

fold-right

Kind

primitive

Binding

constant

Lambda list

(callable initial list list (%self-slot ..))

Fold callable from the right across element tuples, stopping at shortest list.

for-each

Kind

primitive

Binding

constant

Lambda list

(callable list list (%self-slot ..))

Apply callable for each element tuple, stopping at shortest list.

format

Kind

primitive

Binding

constant

Lambda list

(format-string argument (%self-slot ..))

Return a formatted string using SRFI-28-style directives.

function?

Kind

primitive

Binding

constant

Lambda list

(value)

Return true when value is a function.

gensym

Kind

primitive

Binding

constant

Lambda list

([name])

Return a fresh gensym or named uninterned symbol.

get-current-environment

Kind

special form

Binding

constant

Return current lexical environment.

handler-bind

Kind

special form

Binding

constant

Lambda list

(handler-expression body (%self-slot ..))

Bind condition handler during dynamic extent of body.

if

Kind

special form

Binding

constant

Lambda list

(condition then [else])

Evaluate then or else based on condition.

in-package

Kind

primitive

Binding

constant

Lambda list

(package-designator)

Set current package for symbol interning.

integer?

Kind

primitive

Binding

constant

Lambda list

(value)

Return true when value is an integer.

keyword?

Kind

primitive

Binding

constant

Lambda list

(value)

Return true when value is a symbol in the keyword package.

lambda

Kind

macro

Binding

constant

Lambda list

(parameters . body)

length

Kind

primitive

Binding

constant

Lambda list

(list)

Return the length of a proper list.

let

Kind

macro

Binding

constant

Lambda list

(ListTalk-implementation:bindings-or-name . body)

let*

Kind

macro

Binding

constant

Lambda list

(ListTalk-implementation:bindings . body)

letrec

Kind

special form

Binding

constant

Lambda list

(((symbol value-expression) (%self-slot ..)) body (%self-slot ..))

Evaluate body in lexical scope with mutually recursive bindings.

list

Kind

primitive

Binding

constant

Lambda list

(value (%self-slot ..))

Return a list containing all arguments.

list->string

Kind

primitive

Binding

constant

Lambda list

(characters)

Construct a string from a proper list of characters.

list->vector

Kind

primitive

Binding

constant

Lambda list

(list)

Return a vector containing the elements of a proper list.

list-ref

Kind

primitive

Binding

constant

Lambda list

(list index)

Return list item at index.

list?

Kind

primitive

Binding

constant

Lambda list

(value)

Return true when value is a proper list.

load!

Kind

macro

Binding

constant

Lambda list

(ListTalk-implementation:module . ListTalk-implementation:resolvers)

log

Kind

primitive

Binding

constant

Lambda list

(x)

Return natural logarithm of a real number.

macro

Kind

special form

Binding

constant

Lambda list

(callable-expression)

Wrap primitive or closure as macro.

macro?

Kind

primitive

Binding

constant

Lambda list

(value)

Return true when value is a macro.

macroexpand

Kind

primitive

Binding

constant

Lambda list

(form environment)

Expand macros in form using environment object.

make-bytevector

Kind

primitive

Binding

constant

Lambda list

(length [fill])

Create a bytevector with optional byte fill.

make-class

Kind

primitive

Binding

constant

Lambda list

(name superclasses slot-names)

Create class with name, superclasses list, and slot-name list.

make-instance

Kind

primitive

Binding

constant

Lambda list

(class)

Allocate empty instance for allocatable class.

make-vector

Kind

primitive

Binding

constant

Lambda list

(length [fill])

Create vector with optional fill value.

map

Kind

primitive

Binding

constant

Lambda list

(callable list list (%self-slot ..))

Return list of callable results for each element tuple, stopping at shortest list.

max

Kind

primitive

Binding

constant

Lambda list

(n (send n :...))

Return largest real numeric argument.

memq

Kind

primitive

Binding

constant

Lambda list

(value list)

Return list tail whose car is value by identity, else false.

min

Kind

primitive

Binding

constant

Lambda list

(n (send n :...))

Return smallest real numeric argument.

negative?

Kind

primitive

Binding

constant

Lambda list

(value)

Return true when value is less than zero.

not

Kind

primitive

Binding

constant

Lambda list

(value)

Return true when value is falsey (nil or #false).

null?

Kind

primitive

Binding

constant

Lambda list

(value)

Return true when value is nil.

number->string

Kind

primitive

Binding

constant

Lambda list

(number)

Return the string representation of a number.

number?

Kind

primitive

Binding

constant

Lambda list

(value)

Return true when value is a number.

or

Kind

special form

Binding

constant

Lambda list

(expression (%self-slot ..))

Evaluate expressions until one is truthy, else return last value.

pair?

Kind

primitive

Binding

constant

Lambda list

(value)

Return true when value is a pair.

phase

Kind

primitive

Binding

constant

Lambda list

(x)

Return principal phase angle of a number.

plist->alist

Kind

primitive

Binding

constant

Lambda list

(plist)

Return association list converted from property list.

positive?

Kind

primitive

Binding

constant

Lambda list

(value)

Return true when value is greater than zero.

primitive?

Kind

primitive

Binding

constant

Lambda list

(value)

Return true when value is a primitive function.

provide

Kind

macro

Binding

constant

Lambda list

(ListTalk-implementation:module)

quasiquote

Kind

special form

Binding

constant

Lambda list

(value)

Evaluate quasiquote template.

quote

Kind

special form

Binding

constant

Lambda list

(value)

Return value without evaluation.

rational?

Kind

primitive

Binding

constant

Lambda list

(value)

Return true when value is a rational number.

read

Kind

primitive

Binding

constant

Read one line from standard input and return it as a string.

read-file-as-data

Kind

primitive

Binding

constant

Lambda list

(path)

Read all s-expressions from path as data.

read-string-as-data

Kind

primitive

Binding

constant

Lambda list

(source)

Read all s-expressions from source string as data.

real?

Kind

primitive

Binding

constant

Lambda list

(value)

Return true when value is a real number.

reduce-left

Kind

primitive

Binding

constant

Lambda list

(callable list list (%self-slot ..))

Reduce callable from the left across element tuples, stopping at shortest list.

reduce-right

Kind

primitive

Binding

constant

Lambda list

(callable list list (%self-slot ..))

Reduce callable from the right across element tuples, stopping at shortest list.

require

Kind

macro

Binding

constant

Lambda list

(ListTalk-implementation:module . ListTalk-implementation:resolvers)

reverse

Kind

primitive

Binding

constant

Lambda list

(list)

Return a fresh list containing list items in reverse order.

round

Kind

primitive

Binding

constant

Lambda list

(x)

Return nearest integer to a real number, rounding halfway values away from zero.

send

Kind

macro

Binding

constant

Lambda list

(receiver selector . arguments)

set!

Kind

macro

Binding

constant

Lambda list

(ListTalk-implementation:target value)

sin

Kind

primitive

Binding

constant

Lambda list

(x)

Return sine of a real number.

slot-ref

Kind

primitive

Binding

constant

Lambda list

(object slot)

Read object slot value by symbol name.

slot-set!

Kind

primitive

Binding

constant

Lambda list

(object slot value)

Set object slot value by symbol name.

special-form?

Kind

primitive

Binding

constant

Lambda list

(value)

Return true when value is a special form.

sqrt

Kind

primitive

Binding

constant

Lambda list

(x)

Return principal square root of a number.

string->bytevector

Kind

primitive

Binding

constant

Lambda list

(string)

Return a bytevector containing string UTF-8 bytes.

string->list

Kind

primitive

Binding

constant

Lambda list

(string)

Return a list of characters in string order.

string-append

Kind

primitive

Binding

constant

Lambda list

(string (%self-slot ..))

Concatenate all string arguments.

string-join

Kind

primitive

Binding

constant

Lambda list

(delimiter strings)

Join a list of strings with delimiter.

string-length

Kind

primitive

Binding

constant

Lambda list

(string)

Return string length in Unicode code points as fixnum.

string-ref

Kind

primitive

Binding

constant

Lambda list

(string index)

Return Unicode character at index.

string?

Kind

primitive

Binding

constant

Lambda list

(value)

Return true when value is a string.

substring

Kind

primitive

Binding

constant

Lambda list

(string from to)

Return a substring using half-open Unicode code point indexes.

symbol-name

Kind

primitive

Binding

constant

Lambda list

(value)

Return symbol name as string.

symbol?

Kind

primitive

Binding

constant

Lambda list

(value)

Return true when value is a symbol.

tan

Kind

primitive

Binding

constant

Lambda list

(x)

Return tangent of a real number.

throw

Kind

special form

Binding

constant

Lambda list

(tag-expression value-expression)

Throw value to nearest enclosing catch with matching tag.

truncate

Kind

primitive

Binding

constant

Lambda list

(x)

Return a real number truncated toward zero as an integer.

type-of

Kind

primitive

Binding

constant

Lambda list

(value)

Return class descriptor of value.

unless

Kind

macro

Binding

constant

Lambda list

(ListTalk-implementation:condition . body)

unwind-protect

Kind

special form

Binding

constant

Lambda list

(protected-expression cleanup (%self-slot ..))

Always run cleanup forms; rethrow non-local exits.

use-package

Kind

primitive

Binding

constant

Lambda list

(used-package-designator [nickname-designator])

Use package in current package, optionally by nickname only.

vector

Kind

primitive

Binding

constant

Lambda list

(value (%self-slot ..))

Create vector from argument values.

vector->list

Kind

primitive

Binding

constant

Lambda list

(vector)

Return a list containing the elements of vector.

vector-length

Kind

primitive

Binding

constant

Lambda list

(vector)

Return vector length as fixnum.

vector-ref

Kind

primitive

Binding

constant

Lambda list

(vector index)

Return value at index.

vector-set!

Kind

primitive

Binding

constant

Lambda list

(vector index value)

Set vector element and return value.

vector?

Kind

primitive

Binding

constant

Lambda list

(value)

Return true when value is a vector.

when

Kind

macro

Binding

constant

Lambda list

(ListTalk-implementation:condition . body)

while

Kind

macro

Binding

constant

Lambda list

(ListTalk-implementation:condition . body)

with-gensyms

Kind

macro

Binding

constant

Lambda list

(ListTalk-implementation:symbols . body)

zero?

Kind

primitive

Binding

constant

Lambda list

(value)

Return true when value is numerically zero.

ListTalk-implementation:%define

Kind

special form

Binding

constant

Lambda list

(symbol value-expression)

Create mutable binding in current environment.

ListTalk-implementation:%define-constant

Kind

special form

Binding

constant

Lambda list

(symbol value-expression)

Create constant binding in current environment.

ListTalk-implementation:%dynamic-ref

Kind

primitive

Binding

constant

Lambda list

(dynamic-variable)

Return the current value of a dynamic variable.

ListTalk-implementation:%lambda

Kind

special form

Binding

constant

Lambda list

(name (arg (%self-slot ..)) body (%self-slot ..))

Create closure with lexical scope.

ListTalk-implementation:%let

Kind

special form

Binding

constant

Lambda list

(((symbol value-expression) (%self-slot ..)) body (%self-slot ..))

Evaluate body in lexical scope with local bindings.

ListTalk-implementation:%load!

Kind

primitive

Binding

constant

Lambda list

(environment module-designator resolvers)

Load module source from resolver list into environment.

ListTalk-implementation:%require

Kind

primitive

Binding

constant

Lambda list

(environment module-designator resolvers)

Load module source from resolver list into environment unless already provided.

ListTalk-implementation:%send

Kind

special form

Binding

constant

Lambda list

(receiver selector argument (%self-slot ..))

Evaluate and send selector to receiver.

ListTalk-implementation:%set!

Kind

special form

Binding

constant

Lambda list

(symbol value-expression)

Update existing mutable binding.

ListTalk-implementation:%super-send

Kind

special form

Binding

constant

Lambda list

(receiver selector argument (%self-slot ..))

Evaluate and send selector using send invocation context.

ListTalk-implementation:%while

Kind

special form

Binding

constant

Lambda list

(condition body (%self-slot ..))

Evaluate body while condition is truthy.