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File Name : parser_spec.rb

#  Copyright (c) 2016 Phusion Holding B.V.
#
#  "Union Station" and "Passenger" are trademarks of Phusion Holding B.V.
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#  The above copyright notice and this permission notice shall be included in
#  all copies or substantial portions of the Software.
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#  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
#  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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require_relative '../lib/cxx_hinted_parser/parser'

SPEC_DIR = File.absolute_path(File.dirname(__FILE__))

module CxxHintedParser

describe Parser do
  it 'works' do
    parser = Parser.load_file("#{SPEC_DIR}/Example1.cpp").parse
    expect(parser.structs.keys).to contain_exactly('Foo')
    expect(parser.errors.size).to eq(0)

foo = parser.structs['Foo']
    expect(foo.size).to eq(14)
    i = 0

expect(foo[i].type).to eq('int')
    expect(foo[i].name).to eq('oneWordType')
    expect(foo[i].metadata).to eq({})
    i += 1

expect(foo[i].type).to eq('unsigned int')
    expect(foo[i].name).to eq('twoWordsType')
    expect(foo[i].metadata).to eq({})
    i += 1

expect(foo[i].type).to eq('char')
    expect(foo[i].name).to eq('fieldWithAttribute')
    expect(foo[i].metadata).to eq({})
    i += 1

expect(foo[i].type).to eq('int')
    expect(foo[i].name).to eq('multiLineComment')
    expect(foo[i].metadata).to eq({})
    i += 1

expect(foo[i].type).to eq('int')
    expect(foo[i].name).to eq('multipleSingleLineComments')
    expect(foo[i].metadata).to eq({})
    i += 1

expect(foo[i].type).to eq('int')
    expect(foo[i].name).to eq('moreCommentsAfterHint')
    expect(foo[i].metadata).to eq({})
    i += 1

expect(foo[i].type).to eq('int')
    expect(foo[i].name).to eq('moreSingleLineCommentsAfterHint')
    expect(foo[i].metadata).to eq({})
    i += 1

expect(foo[i].type).to eq('int')
    expect(foo[i].name).to eq('bitfield')
    expect(foo[i].metadata).to eq({})
    i += 1

expect(foo[i].type).to eq('void *')
    expect(foo[i].name).to eq('pointer')
    expect(foo[i].metadata).to eq({})
    i += 1

expect(foo[i].type).to eq('set<string>')
    expect(foo[i].name).to eq('templateType')
    expect(foo[i].metadata).to eq({})
    i += 1

expect(foo[i].type).to eq('char []')
    expect(foo[i].name).to eq('array')
    expect(foo[i].metadata).to eq({})
    i += 1

expect(foo[i].type).to eq('const int')
    expect(foo[i].name).to eq('constField')
    expect(foo[i].metadata).to eq({})
    i += 1

expect(foo[i].type).to eq('const int const')
    expect(foo[i].name).to eq('constConstField')
    expect(foo[i].metadata).to eq({})
    i += 1

expect(foo[i].type).to eq('const char * const * []')
    expect(foo[i].name).to eq('constConstCharArray')
    expect(foo[i].metadata).to eq({})
    i += 1
  end

it 'reports errors' do
    parser = Parser.load_file("#{SPEC_DIR}/ExampleWithErrors.cpp").parse
    expect(parser.structs.keys).to contain_exactly('Foo')

errors = parser.errors
    expect(parser.errors.size).to eq(2)
    i = 0

expect(errors[i].message).to eq('Unable to parse field name and type')
    i += 1

expect(errors[i].message).to match(/no corresponding class\/struct begin hint/)
    i += 1
  end

it 'extracts metadata' do
    parser = Parser.load_file("#{SPEC_DIR}/ExampleWithMetadata.cpp").parse
    expect(parser.structs.keys).to contain_exactly('Foo')
    expect(parser.errors.size).to eq(0)

foo = parser.structs['Foo']
    expect(foo.size).to eq(2)
    i = 0

expect(foo[i].type).to eq('int')
    expect(foo[i].name).to eq('simple')
    expect(foo[i].metadata).to eq(author: 'Joe', date: 'today', flag1: true)
    i += 1

expect(foo[i].type).to eq('int')
    expect(foo[i].name).to eq('complex')
    expect(foo[i].metadata).to eq(author: 'Jane', date: 'tomorrow', flag2: true)
    i += 1
  end
end

end

Name	Type	Size	Owner/Group	Permission	Last Modified	Actions
.	dir	-	root/root	0755	2024-12-25 08:01:27
..	dir	-	root/root	0755	2024-12-25 08:01:27
Example1.cpp	text/x-c	1 KB	root/root	0644	2021-03-11 12:06:49
ExampleWithErrors.cpp	text/x-c	256 B	root/root	0644	2021-03-11 12:06:49
ExampleWithMetadata.cpp	text/x-c	381 B	root/root	0644	2021-03-11 12:06:49
parser_spec.rb	text/x-ruby	4.51 KB	root/root	0644	2021-03-11 12:06:49

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