Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 | 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 508252x 508252x 508252x 508252x 508252x 508252x 68037x 68037x 508252x 1x 1x 4283654x 4283654x 1x 1x 440215x 440215x 440215x 440215x 1x 1x 592076x 592076x 1x 1x 842528x 842528x 1x 1x 407620x 407620x 1x 1x 5368996x 5368996x 1x 1x | import {AbstractToken} from "../1_lexer/tokens/abstract_token";
import {ExpressionNode} from "../nodes/expression_node";
import {TokenNode} from "../nodes/token_node";
export class Result {
private readonly tokens: readonly AbstractToken[];
private readonly tokenIndex: number;
private nodes: (ExpressionNode | TokenNode)[] | undefined;
public constructor(tokens: readonly AbstractToken[], tokenIndex: number, nodes?: (ExpressionNode | TokenNode)[]) {
// tokens: all tokens, from the tokenIndex = not yet matched
// nodes: matched tokens
this.tokens = tokens;
this.tokenIndex = tokenIndex;
this.nodes = nodes;
if (this.nodes === undefined) {
this.nodes = [];
}
}
public peek(): AbstractToken {
return this.tokens[this.tokenIndex];
}
public shift(node: ExpressionNode | TokenNode): Result {
const cp = this.nodes!.slice();
cp.push(node);
return new Result(this.tokens, this.tokenIndex + 1, cp);
}
public popNode(): ExpressionNode | TokenNode | undefined {
return this.nodes!.pop();
}
public getNodes(): (ExpressionNode | TokenNode)[] {
return this.nodes!;
}
public setNodes(n: (ExpressionNode | TokenNode)[]): void {
this.nodes = n;
}
public remainingLength(): number {
return this.tokens.length - this.tokenIndex;
}
} |