class

Sheety::Tokens::Operator

Inherits Sheety::Token < Reference < Object

Operator token with precedence handling (shunting-yard algorithm)

Constants

N_ARGS = {"u-" => 1, "u+" => 1, "%" => 1}

Number of arguments for each operator

PRECEDENCES = {":" => 8, " " => 8, "," => 8, "u-" => 7, "u+" => 7, "%" => 6, "^" => 5, "*" => 4, "/" => 4, "+" => 3, "-" => 3, "&" => 2, "=" => 1, "<" => 1, ">" => 1, "<=" => 1, ">=" => 1, "<>" => 1}

Operator precedence levels (higher = higher precedence)

Constructors

new(source : String, context : Hash(String, BigFloat | String) | Nil = nil)

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Instance methods

ast(tokens : Array(Token), stack : Array(Token), builder : AstBuilder) : Nil

Add this token to the AST - called during parsing

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n_args

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name

Get the token name from attributes

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operator_name

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operator_name=(operator_name : String)

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pred

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to_s(io : IO) : Nil

Appends a short String representation of this object which includes its class name and its object address.

class Person
  def initialize(@name : String, @age : Int32)
  end
end

Person.new("John", 32).to_s # => #<Person:0x10a199f20>

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update_input_tokens(*input_tokens : Token) : Nil

Update input tokens (used by operators and functions)

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