antlr4ng
Version:
Alternative JavaScript/TypeScript runtime for ANTLR4
56 lines (55 loc) • 2.39 kB
TypeScript
/** An immutable inclusive interval a..b */
export declare class Interval {
static INVALID_INTERVAL: Interval;
static INTERVAL_POOL_MAX_VALUE: number;
private static cache;
readonly start: number;
readonly stop: number;
private cachedHashCode;
constructor(start: number, stop: number);
/**
* Creates a new interval from the given values.
*
* Interval objects are used readonly so share all with the
* same single value a==b up to some max size. Use an array as a perfect hash.
* Return shared object for 0..INTERVAL_POOL_MAX_VALUE or a new
* Interval object with a..a in it. On Java.g4, 218623 IntervalSets
* have a..a (set with 1 element).
*
* @param a The start of the interval.
* @param b The end of the interval (inclusive).
*
* @returns A cached or new interval.
*/
static of(a: number, b: number): Interval;
equals(o: Interval): boolean;
hashCode(): number;
/** Does this start completely before other? Disjoint */
startsBeforeDisjoint(other: Interval): boolean;
/** Does this start at or before other? Nondisjoint */
startsBeforeNonDisjoint(other: Interval): boolean;
/** Does this.start start after other.stop? May or may not be disjoint */
startsAfter(other: Interval): boolean;
/** Does this start completely after other? Disjoint */
startsAfterDisjoint(other: Interval): boolean;
/** Does this start after other? NonDisjoint */
startsAfterNonDisjoint(other: Interval): boolean;
/** Are both ranges disjoint? I.e., no overlap? */
disjoint(other: Interval): boolean;
/** Are two intervals adjacent such as 0..41 and 42..42? */
adjacent(other: Interval): boolean;
properlyContains(other: Interval): boolean;
/** Return the interval computed from combining this and other */
union(other: Interval): Interval;
/** Return the interval in common between this and o */
intersection(other: Interval): Interval;
/**
* Return the interval with elements from this not in other;
* other must not be totally enclosed (properly contained)
* within this, which would result in two disjoint intervals
* instead of the single one returned by this method.
*/
differenceNotProperlyContained(other: Interval): Interval | null;
toString(): string;
get length(): number;
}