class Crystal::Macros::MacroId
Overview
A fictitious node representing an idenfitifer like, foo, Bar or something_else.
The parser doesn't create this nodes. Instead, you create them by invoking #id
on some nodes. For example, invoking #id on a StringLiteral returns a MacroId
for the string's content. Similarly, invoking ID on a SymbolLiteral, Call, Var and Path
return MacroIds for the node's content.
This allows you to treat strings, symbols, variables and calls unifomly. For example:
macro getter(name)
def {{name.id}}
@{{name.id}}
end
end
getter unicorns
getter :unicorns
getter "unicorns"All of the above macro calls work because we invoked #id, and the generated code
looks like this:
def unicorns
@unicorns
endIf we hand't use #id, the generated code would have been this:
def unicorns
@unicorns
end
def :unicorns
@:unicorns
end
def "unicorns"
@"unicorns"
endThe last two definitions are invalid and so will give a compile-time error.
Defined in:
compiler/crystal/macros.crInstance Method Summary
-
#+(other : StringLiteral | CharLiteral) : MacroId
Similar to
String#+. -
#=~(range : RegexLiteral) : BoolLiteral
Similar to
String#=~. -
#[](range : RangeLiteral) : MacroId
Similar to
String#[]. -
#capitalize : MacroId
Similar to
String#capitalize. -
#chars : Crystal::Macros::ArrayLiteral(CharLiteral)
Similar to
String#chars. -
#chomp : MacroId
Similar to
String#chomp. -
#downcase : MacroId
Similar to
String#downcase. -
#empty? : BoolLiteral
Similar to
String#empty?. -
#ends_with?(other : StringLiteral | CharLiteral) : BoolLiteral
Similar to
String#ends_with?. -
#gsub(regex : RegexLiteral, replacement : StringLiteral) : MacroId
Similar to
String#gsub. -
#id : MacroId
Returns self.
-
#lines : Crystal::Macros::ArrayLiteral(StringLiteral)
Similar to
String#lines. -
#size : NumberLiteral
Similar to
String#size. -
#split : Crystal::Macros::ArrayLiteral(StringLiteral)
Similar to
String#split. -
#split(node : ASTNode) : Crystal::Macros::ArrayLiteral(StringLiteral)
Similar to
String#split. -
#starts_with?(other : StringLiteral | CharLiteral) : BoolLiteral
Similar to
String#starts_with?. -
#strip : MacroId
Similar to
String#strip. -
#tr(from : StringLiteral, to : StringLiteral) : MacroId
Similar to
String#tr. -
#upcase : MacroId
Similar to
String#upcase.
Instance methods inherited from class Crystal::Macros::ASTNode
!=(other : ASTNode) : BoolLiteral
!=,
==(other : ASTNode) : BoolLiteral
==,
class_name : StringLiteral
class_name,
id : MacroId
id,
raise(message) : NoReturn
raise,
stringify : StringLiteral
stringify
Instance methods inherited from class Reference
==(other)==(other : self) ==, hash hash, inspect(io : IO) : Nil inspect, object_id : UInt64 object_id, same?(other : Reference)
same?(other : Nil) same?, to_s(io : IO) : Nil to_s
Instance methods inherited from class Object
!=(other)
!=,
!~(other)
!~,
==(other)
==,
===(other)===(other : YAML::Any)
===(other : JSON::Any) ===, =~(other) =~, class class, clone clone, crystal_type_id crystal_type_id, dup dup, hash hash, inspect
inspect(io : IO) inspect, itself itself, not_nil! not_nil!, tap(&block) tap, to_json to_json, to_pretty_json(io : IO)
to_pretty_json to_pretty_json, to_s
to_s(io : IO) to_s, to_yaml(io : IO)
to_yaml to_yaml, try(&block) try
Class methods inherited from class Object
==(other : Class)
==,
===(other)
===,
cast(other) : self
cast,
from_json(string_or_io) : self
from_json,
from_yaml(string : String) : self
from_yaml,
hash
hash,
inspect(io)
inspect,
name : String
name,
to_s(io)
to_s,
|(other : U.class)
|
Instance Method Detail
Similar to String#ends_with?.
Similar to String#gsub.
Similar to String#split.
Similar to String#starts_with?.