79bf416e58
different slot operation have different right sides mom assignment tests work again 157 others don’t
79 lines
2.2 KiB
Ruby
79 lines
2.2 KiB
Ruby
# Virtual
|
|
# Object Oriented
|
|
# Language
|
|
#
|
|
# VOOL is the abstraction of ruby, ruby minus some of the fluff
|
|
# fluff is generally what makes ruby nice to use, like 3 ways to achieve the same thing
|
|
# if/unless/ternary , reverse ifs (ie statement if condition), reverse whiles,
|
|
# implicit blocks, splats and multiple assigns etc
|
|
#
|
|
# Also, Vool is a typed tree, not abstract, so there is a base class Statement
|
|
# and all it's derivation that make up the syntax tree
|
|
#
|
|
# Also Vool has expression and statements and simple syntax. So returns must be explicit
|
|
# not everthing is just assignable, ifs can only test simple expressions etc (wip)
|
|
#
|
|
# This allows us to write compilers or passes of the compiler(s) as functions on the
|
|
# classes.
|
|
#
|
|
module Vool
|
|
|
|
# Base class for all statements in the tree. Derived classes correspond to known language
|
|
# constructs
|
|
#
|
|
# Compilers or compiler passes are written by implementing methods.
|
|
#
|
|
class Statement
|
|
|
|
# after creation vool normalizes to ensure valid syntax and simplify
|
|
# also throw errors if violation
|
|
def normalize()
|
|
raise self.class.name
|
|
end
|
|
|
|
def to_mom( _ )
|
|
# temporary warning to find unimplemented kids
|
|
raise "Not implemented for #{self}"
|
|
end
|
|
|
|
def ct_type
|
|
nil
|
|
end
|
|
|
|
end
|
|
|
|
class Expression
|
|
|
|
def normalize
|
|
raise "should not be normalized #{self}"
|
|
end
|
|
def to_mom(method)
|
|
raise "should not be momed #{self}"
|
|
end
|
|
|
|
# for loading into a lot, return the "slot_definition" that can be passed to
|
|
# SlotLoad.
|
|
def slot_definition(method)
|
|
raise "not iplemented in #{self}"
|
|
end
|
|
|
|
end
|
|
|
|
end
|
|
|
|
|
|
require_relative "statements/assign_statement"
|
|
require_relative "statements/array_statement"
|
|
require_relative "statements/basic_values"
|
|
require_relative "statements/class_statement"
|
|
require_relative "statements/hash_statement"
|
|
require_relative "statements/if_statement"
|
|
require_relative "statements/logical_statement"
|
|
require_relative "statements/local_assignment"
|
|
require_relative "statements/method_statement"
|
|
require_relative "statements/return_statement"
|
|
require_relative "statements/statements"
|
|
require_relative "statements/send_statement"
|
|
require_relative "statements/variables"
|
|
require_relative "statements/while_statement"
|