46 lines
913 B
Rust
46 lines
913 B
Rust
|
struct Context
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
struct StatementHandler<'context>
|
||
|
|
{
|
||
|
|
context: &'context mut Context,
|
||
|
|
}
|
||
|
|
|
||
|
|
impl clingo::StatementHandler for StatementHandler<'_>
|
||
|
|
{
|
||
|
|
fn on_statement(&mut self, statement: &clingo::ast::Statement) -> bool
|
||
|
|
{
|
||
|
|
match statement.statement_type()
|
||
|
|
{
|
||
|
|
clingo::ast::StatementType::Rule(ref rule) =>
|
||
|
|
{
|
||
|
|
println!("got rule {:?}", rule)
|
||
|
|
},
|
||
|
|
_ => println!("got other kind of statement"),
|
||
|
|
}
|
||
|
|
|
||
|
|
true
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
struct Logger;
|
||
|
|
|
||
|
|
impl clingo::Logger for Logger
|
||
|
|
{
|
||
|
|
fn log(&mut self, code: clingo::Warning, message: &str)
|
||
|
|
{
|
||
|
|
println!("clingo warning ({:?}): {}", code, message);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
fn main() -> Result<(), Box<dyn std::error::Error>>
|
||
|
|
{
|
||
|
|
let program = std::fs::read_to_string("test.lp")?;
|
||
|
|
let mut context = Context{};
|
||
|
|
let mut statement_handler = StatementHandler{context: &mut context};
|
||
|
|
clingo::parse_program_with_logger(&program, &mut statement_handler, &mut Logger, std::u32::MAX)?;
|
||
|
|
|
||
|
|
Ok(())
|
||
|
|
}
|