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// 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;
let astDumpNestedDecl1346;
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());
astDumpNestedDecl1346 = utils.splitLines(fs.readFileSync('test/ast/bug-1346-typedef-struct.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.line));
processed.find(l => l.text.match(/col:21, line:4:1/)).source.to.line.should.equal(4);
processed.find(l => l.text.match(/col:21, line:4:1/)).source.to.col.should.equal(1);
processed.find(l => l.text.match(/col:21, line:4:1/)).source.from.col.should.equal(21);
processed.find(l => l.text.match(/line:3:5, col:18/)).source.from.line.should.equal(3);
processed.find(l => l.text.match(/line:3:5, col:18/)).source.from.col.should.equal(5);
processed.find(l => l.text.match(/line:3:5, col:18/)).source.to.line.should.equal(3);
processed.find(l => l.text.match(/line:3:5, col:18/)).source.to.col.should.equal(18);
// Here "from.line" is inherited from the parent "FunctionDecl <<source>:2:1, line:4:1>"
processed.find(l => l.text.match(/CompoundStmt.*<col:21, line:4:1>/)).source.from.line.should.equal(2);
});
it('does not truncate nested declarations', () => {
// See https://github.com/compiler-explorer/compiler-explorer/issues/1346
let output = mockAstOutput(astDumpNestedDecl1346);
let processed = astParser.processAst(output);
processed.length.should.be.above(2);
should.exist(processed.find(l => l.text.match(/CXXRecordDecl.*struct x/)));
should.exist(processed.find(l => l.text.match(/TypedefDecl.*struct x/)));
should.exist(processed.find(l => l.text.match(/ElaboratedType/)));
should.exist(processed.find(l => l.text.match(/RecordType/)));
should.exist(processed.find(l => l.text.match(/CXXRecord/)));
});
});
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