Represents a hash pattern in pattern matching.
foo => { a: 1, b: 2 }
^^^^^^^^^^^^^^
foo => { a: 1, b: 2, **c }
^^^^^^^^^^^^^^^^^^^
Represents the use of the ‘if` keyword, either in the block form or the modifier form, or a ternary expression.
bar if foo ^^^^^^^^^^ if foo then bar end ^^^^^^^^^^^^^^^^^^^ foo ? bar : baz ^^^^^^^^^^^^^^^
Represents a node that is implicitly being added to the tree but doesn’t correspond directly to a node in the source.
{ foo: }
^^^^
{ Foo: }
^^^^
foo in { bar: }
^^^^
Represents using a trailing comma to indicate an implicit rest parameter.
foo { |bar,| }
^
foo in [bar,]
^
for foo, in bar do end
^
foo, = bar
^
Represents the use of the ‘in` keyword in a case statement.
case a; in b then c end
^^^^^^^^^^^
Represents the use of the ‘&&=` operator on a call to the `[]` method.
foo.bar[baz] &&= value ^^^^^^^^^^^^^^^^^^^^^^
Represents the use of an assignment operator on a call to ‘[]`.
foo.bar[baz] += value ^^^^^^^^^^^^^^^^^^^^^
Represents the use of the ‘||=` operator on a call to `[]`.
foo.bar[baz] ||= value ^^^^^^^^^^^^^^^^^^^^^^
Represents assigning to an index.
foo[bar], = 1
^^^^^^^^
begin
rescue => foo[bar]
^^^^^^^^
end
for foo[bar] in baz do end
^^^^^^^^
Represents a regular expression literal that contains interpolation that is being used in the predicate of a conditional to implicitly match against the last line read by an IO object.
if /foo #{bar} baz/ then end
^^^^^^^^^^^^^^^^
Represents a string literal that contains interpolation.
"foo #{bar} baz"
^^^^^^^^^^^^^^^^
Represents a symbol literal that contains interpolation.
:"foo #{bar} baz"
^^^^^^^^^^^^^^^^^
Represents an xstring literal that contains interpolation.
`foo #{bar} baz`
^^^^^^^^^^^^^^^^
Represents an implicit set of parameters through the use of the ‘it` keyword within a block or lambda.
-> { it + it }
^^^^^^^^^^^^^^
Represents a keyword rest parameter to a method, block, or lambda definition.
def a(**b)
^^^
end
Represents using a lambda literal (not the lambda method call).
->(value) { value * 2 }
^^^^^^^^^^^^^^^^^^^^^^^
Represents a regular expression literal used in the predicate of a conditional to implicitly match against the last line read by an IO object.
if /foo/i then end ^^^^^^
Represents writing local variables using a regular expression match with named capture groups.
/(?<foo>bar)/ =~ baz ^^^^^^^^^^^^^^^^^^^^
Represents a node that is missing from the source and results in a syntax error.