text: // Copyright (c) 2021, Compiler Explorer Authors
  // All rights reserved.
  //
  // Redistribution and use in source and binary forms, with or without
  // modification, are permitted provided that the following conditions are met:
  //
  //     * Redistributions of source code must retain the above copyright notice,
  //       this list of conditions and the following disclaimer.
  //     * Redistributions in binary form must reproduce the above copyright
  //       notice, this list of conditions and the following disclaimer in the
  //       documentation and/or other materials provided with the distribution.
  //
  // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  // ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
  // LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  // CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  // SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  // CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  // POSSIBILITY OF SUCH DAMAGE.
  
  import cloneDeep from 'lodash.clonedeep';
  
  import { LlvmAstParser } from '../lib/llvm-ast';
  import * as properties from '../lib/properties';
  import * as utils from '../lib/utils';
  
  import { fs, should } from './utils';
  
  const languages = {
      'c++': {id: 'c++'},
  };
  
  function mockAstOutput(astLines) {
      return { stdout : astLines.map(l => ( { text : l } ))};
  }
  
  describe('llvm-ast', function () {
      let compilerProps;
      let astParser;
      let astDump;
      let compilerOutput;
      let astDumpWithCTime;
  
      before(() => {
          let fakeProps = new properties.CompilerProps(languages, properties.fakeProps({}));
          compilerProps = fakeProps.get.bind(fakeProps, 'c++');
  
          astParser = new LlvmAstParser(compilerProps);
          astDump = utils.splitLines(fs.readFileSync('test/ast/square.ast').toString());
          compilerOutput = mockAstOutput(astDump);
          astDumpWithCTime = utils.splitLines(fs.readFileSync('test/ast/ctime.ast').toString());
      });
  
      it('keeps fewer lines than the original', () => {
          let origHeight = astDump.length;
          let processed = astParser.processAst(cloneDeep(compilerOutput));
          processed.length.should.be.below(origHeight);
      });
  
      it('removes invalid slocs', () => {
          let processed = astParser.processAst(cloneDeep(compilerOutput));
          astDump.should.match(/<invalid sloc>/);
          let fullText = processed.map(l => l.text).join('\n');
          fullText.should.not.match(/<invalid sloc>/);
      });
  
      it('keeps reasonable-sized output', () => {
          astDumpWithCTime.length.should.be.above(100);
  
          let output = mockAstOutput(astDumpWithCTime);
          let processed = astParser.processAst(output);
          processed.length.should.be.below(100);
      });
  
      it('links some source lines', () => {
          should.exist(compilerOutput.stdout.find(l => l.text.match(/col:21, line:4:1/)));
          should.exist(compilerOutput.stdout.find(l => l.text.match(/line:3:5, col:18/)));
          let processed = astParser.processAst(cloneDeep(compilerOutput));
          should.exist(processed.find(l => l.source && 0 < l.source.from));
          processed.find(l => l.text.match(/col:21, line:4:1/)).source.to.should.equal(4);
          processed.find(l => l.text.match(/line:3:5, col:18/)).source.from.should.equal(3);
          processed.find(l => l.text.match(/line:3:5, col:18/)).source.to.should.equal(3);
      });
  });
  