/// <inheritdoc/>
public void Execute(GeneratorExecutionContext context)
{
foreach (var file in GetCdeltaFiles(context))
{
var input = file.GetText()?.ToString();
if (input == null)
{
continue;
}
var inputStream = new AntlrInputStream(input);
var lexer = new CdeltaLexer(inputStream);
var tokenStream = new CommonTokenStream(lexer);
var parser = new CdeltaParser(tokenStream);
CdeltaParser.CodeFileContext parsed = parser.codeFile();
var visitor = new CdeltaGrammarVisitor();
var result = visitor.Visit(parsed);
var code = result.First().ToCode();
context.AddSource($"{Path.GetFileName(file.Path)}.cs", code);
}
using var stream = typeof(CdeltaGenerator).Assembly.GetManifestResourceStream("Cdelta.IAutomaton.cs");
using var reader = new StreamReader(stream);
context.AddSource("IAutomaton.cs", reader.ReadToEnd());
}
private static CodeFile BuildStructure(AntlrInputStream inputStream)
{
if (inputStream == null)
{
throw new ArgumentNullException(nameof(inputStream));
}
CdeltaLexer lexer = new CdeltaLexer(inputStream);
CommonTokenStream tokenStream = new CommonTokenStream(lexer);
CdeltaParser parser = new CdeltaParser(tokenStream);
CdeltaParser.CodeFileContext result = parser.codeFile();
CodeFile codeFile = new CodeFile();
CdeltaGrammarVisitor visitor = new CdeltaGrammarVisitor(inputStream.ToString(), ref codeFile);
visitor.Visit(result);
codeFile.Finish();
codeFile.Verify();
return(codeFile);
}
/// <summary>
/// Exit a parse tree produced by <see cref="CdeltaParser.codeFile"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitCodeFile([NotNull] CdeltaParser.CodeFileContext context)
{
}
/// <summary>
/// Visit a parse tree produced by <see cref="CdeltaParser.codeFile"/>.
/// <para>
/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
/// on <paramref name="context"/>.
/// </para>
/// </summary>
/// <param name="context">The parse tree.</param>
/// <return>The visitor result.</return>
public virtual Result VisitCodeFile([NotNull] CdeltaParser.CodeFileContext context)
{
return(VisitChildren(context));
}
public override object VisitCodeFile(CdeltaParser.CodeFileContext context)
{
contextWithStructure.Add(context, codeFile);
return(base.VisitCodeFile(context));
}