Canon/Canon.Tests/CCodeGeneratorTests/ExpressionTests.cs

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using Canon.Core.Abstractions;
using Canon.Core.CodeGenerators;
using Canon.Core.GrammarParser;
using Canon.Core.LexicalParser;
using Canon.Core.SyntaxNodes;
using Canon.Tests.Utils;
using Xunit.Abstractions;
namespace Canon.Tests.CCodeGeneratorTests;
public class ExpressionTests
{
private readonly IGrammarParser _parser = GeneratedGrammarParser.Instance;
private readonly ILexer _lexer = new Lexer();
private readonly ITestOutputHelper _outputHelper;
public ExpressionTests(ITestOutputHelper outputHelper)
{
_outputHelper = outputHelper;
}
[Fact]
public void ExpressionTest1()
{
CCodeBuilder builder = new();
const string program = """
program varTest;
var a, b, c, d: integer; m, n: real; k: boolean;
begin
a := 1;
b := a + 6 * 9 + (a + 9) * 1 - (4 + a) * 5 / 1;
m := b / 3;
d := 9 mod 1;
end.
""";
IEnumerable<SemanticToken> tokens = _lexer.Tokenize(new StringSourceReader(program));
ProgramStruct root = _parser.Analyse(tokens);
root.GenerateCCode(builder);
string result = builder.Build();
_outputHelper.WriteLine(result);
Assert.Equal("#include <PascalCoreLib.h> char a; int main(){statement; return 0; }", result);
}
}