Program.java 文件源码

/**
 * Compile it to Java and save.
 * @throws IOException If fails
 */
public void compile() throws IOException {
    final String[] lines = new TextOf(this.input).asString().split("\n");
    final ANTLRErrorListener errors = new BaseErrorListener() {
        // @checkstyle ParameterNumberCheck (10 lines)
        @Override
        public void syntaxError(final Recognizer<?, ?> recognizer,
            final Object symbol, final int line,
            final int position, final String msg,
            final RecognitionException error) {
            throw new CompileException(
                String.format(
                    "[%d:%d] %s: \"%s\"",
                    line, position, msg, lines[line - 1]
                ),
                error
            );
        }
    };
    final ProgramLexer lexer = new ProgramLexer(
        CharStreams.fromStream(this.input.stream())
    );
    lexer.removeErrorListeners();
    lexer.addErrorListener(errors);
    final ProgramParser parser = new ProgramParser(
        new CommonTokenStream(lexer)
    );
    parser.removeErrorListeners();
    parser.addErrorListener(errors);
    final Tree tree = parser.program().ret;
    new IoCheckedScalar<>(
        new And(
            tree.java().entrySet(),
            path -> {
                new LengthOf(
                    new TeeInput(
                        path.getValue(),
                        this.target.apply(path.getKey())
                    )
                ).value();
            }
        )
    ).value();
}