All files / src/ast/literal long-literal.ts

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import type { ExpressionState } from '../../expression-state.js';
import { TypedValue } from '../../typed-value.js';
import { Literal } from '../spel-node.js';
import { NodeType } from '../../language/node-type.js';
import { longLiteralKind, type NumericKind } from '../../type/numeric.js';
 
export class LongLiteral extends Literal {
  private readonly value: number | bigint;
  private readonly kind: NumericKind;
 
  constructor(startPos: number, endPos: number, value: number | bigint) {
    super(NodeType.LONG_LITERAL, startPos, endPos, String(value) + 'L');
    this.value = value;
    // A long literal is a `long` whatever its magnitude, unlike an unsuffixed
    // literal whose kind follows its size — otherwise `1L` is typed `int` and
    // `2147483647L + 1L` wraps at 32 bits. Beyond the range a JavaScript number
    // holds exactly the value is kept as a bigint, so `9007199254740993L` no
    // longer rounds to its neighbour.
    this.kind = longLiteralKind(this.value);
  }
 
  public getParsedValue(): number | bigint {
    return this.value;
  }
 
  public getValueInternal(_state: ExpressionState): TypedValue {
    return new TypedValue(this.value, null, this.kind);
  }
 
  public toStringAST(): string {
    return String(this.value) + 'L';
  }
}