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 293456x 293456x 293456x 293456x 293456x 293456x 45478x 45478x 293456x 1x 1x 1547566x 1547566x 1x 1x 247978x 247978x 247978x 247978x 1x 1x 337635x 337635x 1x 1x 520235x 520235x 1x 1x 250672x 250672x 1x 1x 2294448x 2294448x 1x 1x | import {Token} from "../1_lexer/tokens/_token";
import {ExpressionNode} from "../nodes/expression_node";
import {TokenNode} from "../nodes/token_node";
export class Result {
private readonly tokens: readonly Token[];
private readonly tokenIndex: number;
private nodes: (ExpressionNode | TokenNode)[] | undefined;
public constructor(tokens: readonly Token[], 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(): Token {
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;
}
} |