class Myst::MatchAssign

Overview

A match assignment. Similar to SimpleAssign, but essentiallly inverted. Match assignments create expectations that the right-hand-side value structurally matches the left-hand-side pattern. The "assignment" portion comes from the ability to name variables on the left-hand-side to capture specific sub-values from the right-hand-side.

pattern '=:' expression

Defined in:

myst/syntax/ast.cr

Constructors

Instance Method Summary

Instance methods inherited from class Myst::Node

accept(visitor) accept, accept_children(visitor) accept_children, at(node : Node)
at(node : Nil)
at(location : Location) at, at_end(node : Node)
at_end(node : Nil)
at_end(end_location : Location) at_end, class_desc : String class_desc, end_location : Location | Nil end_location, end_location=(end_location : Location | Nil) end_location=, location : Location | Nil location, location=(location : Location | Nil) location=

Constructor Detail

def self.new(pattern : Myst::Node, value : Myst::Node) #

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Instance Method Detail

def ==(other : self) #
Description copied from class Reference

Returns true if this reference is the same as other. Invokes same?.


def accept_children(visitor) #

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def hash(hasher) #
Description copied from class Reference

See Object#hash(hasher)


def pattern : Node #

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def pattern=(pattern : Node) #

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def value : Node #

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def value=(value : Node) #

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