Module: Expressir::Express::Formatters::SupertypeExpressionsFormatter

Included in:
Expressir::Express::Formatter
Defined in:
lib/expressir/express/formatters/supertype_expressions_formatter.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(base) ⇒ Object 



5
6
7
8
9
10
 
# File 'lib/expressir/express/formatters/supertype_expressions_formatter.rb', line 5

def self.included(base)
  base.register_formatter Model::SupertypeExpressions::BinarySupertypeExpression,
                          :format_supertype_expressions_binary_supertype_expression
  base.register_formatter Model::SupertypeExpressions::OneofSupertypeExpression,
                          :format_supertype_expressions_oneof_supertype_expression
end

Instance Method Details

#format_supertype_expressions_binary_supertype_expression(node) ⇒ Object 



12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
 
# File 'lib/expressir/express/formatters/supertype_expressions_formatter.rb', line 12

def format_supertype_expressions_binary_supertype_expression(node)
  supertype_precedence = self.class.const_get(:SUPERTYPE_OPERATOR_PRECEDENCE)
  op1_higher_precedence = node.operand1.is_a?(Model::SupertypeExpressions::BinarySupertypeExpression) &&
    (supertype_precedence[node.operand1.operator] > supertype_precedence[node.operator])
  op2_higher_precedence = node.operand2.is_a?(Model::SupertypeExpressions::BinarySupertypeExpression) &&
    (supertype_precedence[node.operand2.operator] > supertype_precedence[node.operator])

  [
    *if op1_higher_precedence
       "("
     end,
    format(node.operand1),
    *if op1_higher_precedence
       ")"
     end,
    " ",
    case node.operator
    when Model::SupertypeExpressions::BinarySupertypeExpression::AND then "AND"
    when Model::SupertypeExpressions::BinarySupertypeExpression::ANDOR then "ANDOR"
    end,
    " ",
    *if op2_higher_precedence
       "("
     end,
    format(node.operand2),
    *if op2_higher_precedence
       ")"
     end,
  ].join
end

#format_supertype_expressions_oneof_supertype_expression(node) ⇒ Object 



43
44
45
46
47
48
49
50
 
# File 'lib/expressir/express/formatters/supertype_expressions_formatter.rb', line 43

def format_supertype_expressions_oneof_supertype_expression(node)
  [
    "ONEOF",
    "(",
    Array(node.operands).map { |x| format(x) }.join(", "),
    ")",
  ].join
end