class
Crystal::Expressions
Overview
A container for one or many expressions.
Defined in:
compiler/crystal/macros/methods.crcompiler/crystal/syntax/ast.cr
Constructors
Class Method Summary
-
.concat!(x : ASTNode, y : ASTNode) : ASTNode
Concatenates two AST nodes into a single
Expressionsnode, removingNops and merging keyword-less expressions into a single node. - .from(obj : Nil)
- .from(obj : Array)
- .from(obj : ASTNode)
Instance Method Summary
-
#==(other : self)
Returns
trueif this reference is the same as other. - #[](i)
- #accept_children(visitor)
- #clone_without_location
- #empty?
-
#end_location
The location where this node ends, or
nilif the location is not known. - #expressions : Array(ASTNode)
- #expressions=(expressions : Array(ASTNode))
- #hash(hasher)
- #interpret(method : String, args : Array(ASTNode), named_args : Hash(String, ASTNode) | Nil, block : Crystal::Block | Nil, interpreter : Crystal::MacroInterpreter, name_loc : Location | Nil)
- #keyword : Keyword
- #keyword=(keyword : Keyword)
- #last
-
#location
The location where this node starts, or
nilif the location is not known. - #pretty_print(pp) : Nil
-
#single_expression?
It yields first node if this holds only one node, or yields
nil.
Instance methods inherited from class Crystal::ASTNode
accept(visitor)
accept,
accept_children(visitor)
accept_children,
add_observer(observer)
add_observer,
at(node : ASTNode)at(location : Location | Nil) at, at_end(node : ASTNode)
at_end(end_location : Location | Nil) at_end, bind(from = nil, &) bind, bind_to(node : ASTNode) : Nil
bind_to(nodes : Indexable) : Nil bind_to, class_desc class_desc, class_name class_name, clone clone, dependencies : SmallNodeList dependencies, doc doc, doc=(doc) doc=, enclosing_call : Call | Nil enclosing_call, enclosing_call=(enclosing_call : Call | Nil) enclosing_call=, end_location : Location | Nil end_location, end_location=(end_location : Location | Nil) end_location=, false_literal? false_literal?, filtered_by(filter) filtered_by, find_owner_trace(program, owner) find_owner_trace, freeze_type freeze_type, inspect(io : IO) : Nil inspect, interpret(method : String, args : Array(ASTNode), named_args : Hash(String, ASTNode) | Nil, block : Crystal::Block | Nil, interpreter : Crystal::MacroInterpreter, name_loc : Location | Nil) interpret, interpret_compare(other) interpret_compare, length : Int32 | Nil length, location : Location | Nil location, location=(location : Location | Nil) location=, macro_is_a?(macro_type : MacroType) : Bool macro_is_a?, map_type(type) map_type, name_location name_location, name_size name_size, no_returns? no_returns?, nop? nop?, notify_observers notify_observers, pretty_print(pp) pretty_print, propagate propagate, raise(message, inner = nil, exception_type = Crystal::TypeException) raise, raise_frozen_type(freeze_type, invalid_type, from) raise_frozen_type, remove_enclosing_call(enclosing_call) remove_enclosing_call, remove_observer(observer) remove_observer, restrict_type_to_freeze_type(freeze_type, type) restrict_type_to_freeze_type, restriction_of?(other : Underscore, owner, self_free_vars = nil, other_free_vars = nil)
restriction_of?(other : ASTNode, owner, self_free_vars = nil, other_free_vars = nil)
restriction_of?(other : Type, owner, self_free_vars = nil, other_free_vars = nil)
restriction_of?(other, owner, self_free_vars = nil, other_free_vars = nil) restriction_of?, set_enclosing_call(enclosing_call) set_enclosing_call, set_type(type : Type)
set_type(type : Nil) set_type, set_type_from(type, from) set_type_from, simple_literal? simple_literal?, single_expression single_expression, single_expression? single_expression?, stringify stringify, supports_autocast?(number_autocast : Bool = true) supports_autocast?, symbolize symbolize, to_macro_id to_macro_id, to_s(io : IO, macro_expansion_pragmas = nil, emit_doc = false, emit_location_pragmas : Bool = false) : Nil to_s, to_string(context) to_string, transform(transformer) transform, true_literal? true_literal?, truthy? truthy?, type
type(*, with_autocast = false) type, type=(type) type=, type? type?, type_from_dependencies : Type | Nil type_from_dependencies, unbind_from(nodes : Nil)
unbind_from(node : ASTNode)
unbind_from(nodes : Enumerable(ASTNode)) unbind_from, update(from = nil) update, visibility visibility, visibility=(visibility : Visibility) visibility=, warning(message, inner = nil, exception_type = Crystal::TypeException) warning, wrong_number_of(elements, subject, given, expected)
wrong_number_of(elements, given, expected) wrong_number_of, wrong_number_of_arguments(subject, given, expected) wrong_number_of_arguments, wrong_number_of_message(elements, subject, given, expected)
wrong_number_of_message(elements, given, expected) wrong_number_of_message
Class methods inherited from class Crystal::ASTNode
class_desc : String
class_desc
Instance methods inherited from class Reference
==(other : self)==(other : JSON::Any)
==(other : YAML::Any)
==(other) ==, dup dup, hash(hasher) hash, initialize initialize, inspect(io : IO) : Nil inspect, object_id : UInt64 object_id, pretty_print(pp) : Nil pretty_print, same?(other : Reference) : Bool
same?(other : Nil) same?, to_s(io : IO) : Nil to_s
Constructor methods inherited from class Reference
new
new,
unsafe_construct(address : Pointer, *args, **opts) : self
unsafe_construct
Class methods inherited from class Reference
pre_initialize(address : Pointer)
pre_initialize
Instance methods inherited from class Object
! : Bool
!,
!=(other)
!=,
!~(other)
!~,
==(other)
==,
===(other : JSON::Any)===(other : YAML::Any)
===(other) ===, =~(other) =~, as(type : Class) as, as?(type : Class) as?, class class, dup dup, hash(hasher)
hash hash, in?(collection : Object) : Bool
in?(*values : Object) : Bool in?, inspect(io : IO) : Nil
inspect : String inspect, is_a?(type : Class) : Bool is_a?, itself itself, nil? : Bool nil?, not_nil!(message)
not_nil! not_nil!, pretty_inspect(width = 79, newline = "\n", indent = 0) : String pretty_inspect, pretty_print(pp : PrettyPrint) : Nil pretty_print, responds_to?(name : Symbol) : Bool responds_to?, tap(&) tap, to_json(io : IO) : Nil
to_json : String to_json, to_pretty_json(indent : String = " ") : String
to_pretty_json(io : IO, indent : String = " ") : Nil to_pretty_json, to_s(io : IO) : Nil
to_s : String to_s, to_yaml(io : IO) : Nil
to_yaml : String to_yaml, try(&) try, unsafe_as(type : T.class) forall T unsafe_as
Class methods inherited from class Object
from_json(string_or_io : String | IO, root : String)from_json(string_or_io : String | IO) from_json, from_yaml(string_or_io : String | IO) from_yaml
Macros inherited from class Object
class_getter(*names, &block)
class_getter,
class_getter!(*names)
class_getter!,
class_getter?(*names, &block)
class_getter?,
class_property(*names, &block)
class_property,
class_property!(*names)
class_property!,
class_property?(*names, &block)
class_property?,
class_setter(*names)
class_setter,
def_clone
def_clone,
def_equals(*fields)
def_equals,
def_equals_and_hash(*fields)
def_equals_and_hash,
def_hash(*fields)
def_hash,
delegate(*methods, to object)
delegate,
forward_missing_to(delegate)
forward_missing_to,
getter(*names, &block)
getter,
getter!(*names)
getter!,
getter?(*names, &block)
getter?,
property(*names, &block)
property,
property!(*names)
property!,
property?(*names, &block)
property?,
setter(*names)
setter
Constructor Detail
Class Method Detail
Concatenates two AST nodes into a single Expressions node, removing
Nops and merging keyword-less expressions into a single node.
x and y may be modified in-place if they are already Expressions
nodes.
Instance Method Detail
Returns true if this reference is the same as other. Invokes same?.
The location where this node ends, or nil
if the location is not known.
The location where this node starts, or nil
if the location is not known.