private static CompileResult ParseFile(SourceProjectFile sourceFile, out AST ast)
{
// If not virtual, make sure the file exists
if (!sourceFile.IsVirtual)
{
if (!File.Exists(sourceFile.Value))
{
ast = null;
return(new CompileResult(false, $"Source file \"{sourceFile.Value}\" not found."));
}
}
// Lex program
Lexer lexer = new Lexer();
LexToken[] tokens = sourceFile.IsVirtual ? lexer.Lex(sourceFile.Value) : lexer.LexFile(sourceFile.Value);
// Build AST and return it
ASTBuilder builder = new ASTBuilder(tokens);
ParsingResult result = builder.Parse();
if (result.Success)
{
ast = builder.Build();
ast.SetSource(sourceFile);
return(new CompileResult(true));
}
else
{
ast = null;
return(new CompileResult(false));
}
}
private AST BuildAST(string rawCode)
{
this.builder = new ASTBuilder(this.lexer.Lex(rawCode));
Assert.That(builder.Parse().Success is true);
return(this.builder.Build());
}