1
2
3
4
5
6
7
8
9
10
11
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
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
|
# frozen_string_literal: true
module Unparser
# Validation of unparser results
class Validation
include Adamantium, Anima.new(
:generated_node,
:generated_source,
:identification,
:original_node,
:original_source
)
# Test if source could be unparsed successfully
#
# @return [Boolean]
#
# @api private
#
# rubocop:disable Style/OperatorMethodCall
def success?
[
original_source,
original_node,
generated_source,
generated_node
].all?(&:right?) && generated_node.from_right.==(original_node.from_right)
end
# rubocop:enable Style/OperatorMethodCall
# Return error report
#
# @return [String]
#
# @api private
#
def report
message = [identification]
message.concat(make_report('Original-Source', :original_source))
message.concat(make_report('Generated-Source', :generated_source))
message.concat(make_report('Original-Node', :original_node))
message.concat(make_report('Generated-Node', :generated_node))
message.concat(node_diff_report)
message.join("\n")
end
memoize :report
# Create validator from string
#
# @param [String] original_source
#
# @return [Validator]
def self.from_string(original_source)
original_node = Unparser
.parse_either(original_source)
generated_source = original_node
.lmap(&method(:const_unit))
.bind(&Unparser.method(:unparse_either))
generated_node = generated_source
.lmap(&method(:const_unit))
.bind(&Unparser.method(:parse_either))
new(
identification: '(string)',
original_source: Either::Right.new(original_source),
original_node: original_node,
generated_source: generated_source,
generated_node: generated_node
)
end
# Create validator from node
#
# @param [Parser::AST::Node] original_node
#
# @return [Validator]
def self.from_node(original_node)
generated_source = Unparser.unparse_either(original_node)
generated_node = generated_source
.lmap(&method(:const_unit))
.bind(&Unparser.public_method(:parse_either))
new(
identification: '(string)',
original_source: generated_source,
original_node: Either::Right.new(original_node),
generated_source: generated_source,
generated_node: generated_node
)
end
# Create validator from file
#
# @param [Pathname] path
#
# @return [Validator]
def self.from_path(path)
from_string(path.read).with(identification: path.to_s)
end
private
def make_report(label, attribute_name)
["#{label}:"].concat(public_send(attribute_name).either(method(:report_exception), ->(value) { [value] }))
end
def report_exception(exception)
if exception
[exception.inspect].concat(exception.backtrace.take(20))
else
['undefined']
end
end
def node_diff_report
diff = nil
original_node.fmap do |original|
generated_node.fmap do |generated|
diff = Diff.new(
original.to_s.lines.map(&:chomp),
generated.to_s.lines.map(&:chomp)
).colorized_diff
end
end
diff ? ['Node-Diff:', diff] : []
end
def self.const_unit(_value); end
private_class_method :const_unit
class Literal < self
def success?
original_source.eql?(generated_source)
end
def report
message = [identification]
message.concat(make_report('Original-Source', :original_source))
message.concat(make_report('Generated-Source', :generated_source))
message.concat(make_report('Original-Node', :original_node))
message.concat(make_report('Generated-Node', :generated_node))
message.concat(node_diff_report)
message.concat(source_diff_report)
message.join("\n")
end
private
def source_diff_report
diff = nil
original_source.fmap do |original|
generated_source.fmap do |generated|
diff = Diff.new(
original.split("\n", -1),
generated.split("\n", -1)
).colorized_diff
end
end
diff ? ['Source-Diff:', diff] : []
end
end # Literal
end # Validation
end # Unparser
|
