pub struct LimitTracker {
pub high: usize,
pub limit: usize,
/* private fields */
}
Expand description
A LimitTracker enforces a particular limit within the parser. It keeps track of utilization so that we can report how close to a limit we approached over the lifetime of the tracker.
use apollo_parser::Parser;
let query = "
{
animal
...snackSelection
... on Pet {
playmates {
count
}
}
}
";
// Create a new instance of a parser given a query and a
// recursion limit
let parser = Parser::new(query).recursion_limit(4);
// Parse the query, and return a SyntaxTree.
let cst = parser.parse();
// Retrieve the limits
let usage = cst.recursion_limit();
// Print out some of the usage details to see what happened during
// our parse. `limit` just reports the limit we set, `high` is the
// high-water mark of recursion usage.
println!("{:?}", usage);
println!("{:?}", usage.limit);
println!("{:?}", usage.high);
// Check that are no errors. These are not part of the CST.
assert_eq!(0, cst.errors().len());
// Get the document root node
let doc = cst.document();
// ... continue
Fields§
§high: usize
High Water mark for this limit
limit: usize
Limit.
Implementations§
Trait Implementations§
source§impl Clone for LimitTracker
impl Clone for LimitTracker
source§fn clone(&self) -> LimitTracker
fn clone(&self) -> LimitTracker
Returns a copy of the value. Read more
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source
. Read moresource§impl Debug for LimitTracker
impl Debug for LimitTracker
source§impl PartialEq for LimitTracker
impl PartialEq for LimitTracker
impl Copy for LimitTracker
impl Eq for LimitTracker
impl StructuralPartialEq for LimitTracker
Auto Trait Implementations§
impl Freeze for LimitTracker
impl RefUnwindSafe for LimitTracker
impl Send for LimitTracker
impl Sync for LimitTracker
impl Unpin for LimitTracker
impl UnwindSafe for LimitTracker
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
source§unsafe fn clone_to_uninit(&self, dst: *mut T)
unsafe fn clone_to_uninit(&self, dst: *mut T)
🔬This is a nightly-only experimental API. (
clone_to_uninit
)