Class: IcAgent::Ast::Assembler

Inherits:
Object
  • Object
show all
Defined in:
lib/ic_agent/ast/assembler.rb

Constant Summary collapse

TYPE_MAPPING = 
{}

Class Method Summary collapse

Class Method Details

.build_blob ⇒ Object 



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# File 'lib/ic_agent/ast/assembler.rb', line 12

def self.build_blob
  IcAgent::Candid::BaseTypes.vec(IcAgent::Candid::BaseTypes.nat8)
end

.build_opt(child_type, key_types = {}) ⇒ Object 



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# File 'lib/ic_agent/ast/assembler.rb', line 16

def self.build_opt(child_type, key_types = {})
  child_type = key_types[child_type].nil? ? build_type(child_type, key_types) : key_types[child_type]
  IcAgent::Candid::BaseTypes.opt(child_type)
end

.build_record(child_hash, multi_types = {}, key_types = {}) ⇒ Object 



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# File 'lib/ic_agent/ast/assembler.rb', line 26

def self.build_record(child_hash, multi_types = {}, key_types = {})
  child_types = {}
  child_hash.each_key do |key|
    if multi_types[child_hash[key].strip]
      multi_type = build_type(multi_types[child_hash[key].strip], key_types, multi_types)
      child_types[key] = multi_type
    elsif key_types[child_hash[key].strip]
      child_types[key] = key_types[child_hash[key].strip]
    else
      child_types[key] = build_type(child_hash[key], key_types, multi_types)
    end
  end
  IcAgent::Candid::BaseTypes.record(child_types)
end

.build_single_type(child_type) ⇒ Object 



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# File 'lib/ic_agent/ast/assembler.rb', line 8

def self.build_single_type(child_type)
  IcAgent::Candid::BaseTypes.send(child_type)
end

.build_type(type_str, key_types = {}, multi_types = {}) ⇒ Object 



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# File 'lib/ic_agent/ast/assembler.rb', line 56

def self.build_type(type_str, key_types = {}, multi_types = {})
  opt_code = get_opt_code(type_str)

  if IcAgent::Candid::SINGLE_TYPES.include? opt_code
    build_single_type(opt_code)
  elsif opt_code == 'blob'
    build_blob
  elsif opt_code == 'opt'
    type_str = recover_type(type_str, multi_types)
    child_code = get_child_code(type_str, ' ')
    build_opt(child_code, key_types)
  elsif opt_code == 'vec'
    type_str = recover_type(type_str, multi_types)
    child_code = get_child_code(type_str, ' ')
    build_vec(child_code, key_types)
  elsif opt_code == 'record'
    child_code = get_record_content(type_str)
    pure_child_code, multi_types = replace_multi_type(child_code)
    child_hash = {}
    key_index = 0
    pure_child_code.split(';').each do |item|
      item_key, item_value = get_record_key_value(item, ' : ', key_index)
      child_hash[item_key] = item_value
      key_index += 1
    end
    build_record(child_hash, multi_types, key_types)
  elsif opt_code == 'variant'
    child_code = get_variant_content(type_str)
    pure_child_code, multi_types = replace_multi_type(child_code)
    child_hash = {}
    pure_child_code.split(';').each do |item|
      item_arr = item.strip.split(' : ')
      child_hash[item_arr[0]] = (item_arr.size > 1 ? item_arr[1] : 'null')
    end
    build_variant(child_hash, multi_types, key_types)
  end
end

.build_variant(child_hash, multi_types = {}, key_types = {}) ⇒ Object 



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# File 'lib/ic_agent/ast/assembler.rb', line 41

def self.build_variant(child_hash, multi_types = {}, key_types = {})
  child_types = {}
  child_hash.each_key do |key|
    if multi_types[child_hash[key].strip]
      multi_type = build_type(multi_types[child_hash[key].strip], multi_types)
      child_types[key] = multi_type
    elsif key_types[child_hash[key].strip]
      child_types[key] = key_types[child_hash[key].strip]
    else
      child_types[key] = build_type(child_hash[key], key_types, multi_types)
    end
  end
  IcAgent::Candid::BaseTypes.variant(child_types)
end

.build_vec(child_type, key_types = {}) ⇒ Object 



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# File 'lib/ic_agent/ast/assembler.rb', line 21

def self.build_vec(child_type, key_types = {})
  child_type = key_types[child_type].nil? ? build_type(child_type, key_types) : key_types[child_type]
  IcAgent::Candid::BaseTypes.vec(child_type)
end

.get_child_code(item_str, index_str) ⇒ Object 



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# File 'lib/ic_agent/ast/assembler.rb', line 131

def self.get_child_code(item_str, index_str)
  first_index = item_str.index(index_str)
  item_str[(first_index + index_str.size)..].strip
end

.get_opt_code(item_str) ⇒ Object 



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# File 'lib/ic_agent/ast/assembler.rb', line 126

def self.get_opt_code(item_str)
  opt_code = item_str.strip
  opt_code.split(' ')[0]
end

.get_params_refer_values(type_str) ⇒ Object 



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# File 'lib/ic_agent/ast/assembler.rb', line 155

def self.get_params_refer_values(type_str)
  pure_child_code, replaced_hash = replace_multi_type(type_str)
  key_index = 0
  value_arr = []
  pure_child_arr = pure_child_code.strip.split(';').map(&:strip).collect { |item| item.gsub('{', '').gsub('}', '') }.reject(&:empty?)
  pure_child_arr.each do |item|
    _, item_value = get_record_key_value(item, ':', key_index)
    value_arr << item_value.split(' ')
    key_index += 1
  end

  replaced_hash.each_key do |key|
    item_type = key.index('record') ? 'record' : 'variant'
    item_arr = replaced_hash[key].sub('record', '').sub('variant', '').strip.split(';').map(&:strip).collect { |item| item.gsub('{', '').gsub('}', '') }.reject(&:empty?)
    item_arr.each do |item|
      multi_item_arr = item.strip.split(':')
      if multi_item_arr.size > 1
        item_value_arr = multi_item_arr[1].strip.split(' ').collect { |v| v.strip.gsub(';', '') }
        item_value_arr.delete('{')
        item_value_arr.delete('}')
        item_value_arr.delete('{}')
        value_arr << item_value_arr
      else
        value_arr << multi_item_arr[0].strip if item_type == 'record'
      end
    end
    value_arr.delete(key)
  end
  value_arr.flatten.uniq - IcAgent::Candid::ALL_TYPES - replaced_hash.keys
end

.get_record_content(record_str) ⇒ Object 



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# File 'lib/ic_agent/ast/assembler.rb', line 102

def self.get_record_content(record_str)
  record_str = record_str.sub('record', '').sub('{', '')
  record_str = replace_last_occurrence(record_str, '}', '')
  record_str.strip
end

.get_record_key_value(item_str, index_str, key_index = 0) ⇒ Object 



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# File 'lib/ic_agent/ast/assembler.rb', line 114

def self.get_record_key_value(item_str, index_str, key_index = 0)
  first_index = item_str.index(index_str)
  if first_index
    key = item_str[0..first_index].strip
    value = item_str[(first_index + index_str.size)..].strip
  else
    key = key_index.to_s
    value = item_str.strip
  end
  return key, value
end

.get_variant_content(variant_str) ⇒ Object 



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# File 'lib/ic_agent/ast/assembler.rb', line 108

def self.get_variant_content(variant_str)
  variant_str = variant_str.sub('variant', '').sub('{', '')
  variant_str = replace_last_occurrence(variant_str, '}', '')
  variant_str.strip
end

.recover_type(type_str, multi_types) ⇒ Object 



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# File 'lib/ic_agent/ast/assembler.rb', line 186

def self.recover_type(type_str, multi_types)
  multi_types.each_key do |key|
    type_str = type_str.gsub(key, multi_types[key])
  end
  type_str
end

.replace_last_occurrence(string, pattern, replacement) ⇒ Object 



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# File 'lib/ic_agent/ast/assembler.rb', line 94

def self.replace_last_occurrence(string, pattern, replacement)
  last_index = string.rindex(pattern)
  return string unless last_index

  string[last_index..-1] = replacement
  string
end

.replace_multi_type(type_str) ⇒ Object 



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# File 'lib/ic_agent/ast/assembler.rb', line 136

def self.replace_multi_type(type_str)
  replaced_hash = {}
  modified_str = type_str.gsub(/record\s*{[^{}]*}/) do |match|
    rad_id = rand(100000..999999)
    type_name = "record_#{rad_id}"
    replaced_hash[type_name] = match
    type_name
  end

  modified_str = modified_str.gsub(/variant\s*{[^{}]*}/) do |match|
    rad_id = rand(100000..999999)
    type_name = "variant_#{rad_id}"
    replaced_hash[type_name] = match
    type_name
  end

  return modified_str, replaced_hash
end