All files / src/rules sequential_blank.ts

100% Statements 74/74
100% Branches 14/14
100% Functions 8/8
100% Lines 74/74

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 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 741x 1x 1x 1x 1x 1x 1x 1x 22202x 22202x 22202x 22202x 22202x 22202x 1x 11102x 11102x 11102x 1875x 1875x 11102x 11102x 11102x 33169x 33169x 33169x 33169x 33169x 33169x 33169x 11102x 11102x 5x 5x 11102x 11102x 10582x 10582x 11102x 11102x 244x 244x 11102x 11102x 274x 274x 274x 274x 274x 274x 1821x 271x 1821x 1550x 1550x 1821x 1821x 5x 5x 2x 2x 5x 5x 5x 5x 5x 5x 5x 5x 1821x 274x 274x 274x 11102x
import {Issue} from "../issue";
import {Position} from "../position";
import {ABAPRule} from "./_abap_rule";
import {BasicRuleConfig} from "./_basic_rule_config";
import {IRuleMetadata, RuleTag} from "./_irule";
import {EditHelper} from "../edit_helper";
import {ABAPFile} from "../abap/abap_file";
 
export class SequentialBlankConf extends BasicRuleConfig {
  /** An equal or higher number of sequential blank lines will trigger a violation.
   * Example: if lines = 3, a maximum of 2 is allowed.
   */
  public lines: number = 4;
}
 
export class SequentialBlank extends ABAPRule {
 
  public static isBlankOrWhitespace(line: string): boolean {
    return /^\s*$/.test(line);
  }
  private conf = new SequentialBlankConf();
 
  public getMetadata(): IRuleMetadata {
    return {
      key: "sequential_blank",
      title: "Sequential blank lines",
      shortDescription: `Checks that code does not contain more than the configured number of blank lines in a row.`,
      tags: [RuleTag.Whitespace, RuleTag.Quickfix, RuleTag.SingleFile],
    };
  }
 
  private getMessage(): string {
    return "Remove sequential blank lines";
  }
 
  public getConfig() {
    return this.conf;
  }
 
  public setConfig(conf: SequentialBlankConf) {
    this.conf = conf;
  }
 
  public runParsed(file: ABAPFile) {
    const issues: Issue[] = [];
 
    const rows = file.getRawRows();
    let blanks = 0;
 
    for (let i = 0; i < rows.length; i++) {
      if (SequentialBlank.isBlankOrWhitespace(rows[i])) {
        blanks++;
      } else {
        blanks = 0;
      }
 
      if (blanks === this.conf.lines) {
        let blankCounter = 1;
        while (i + blankCounter < rows.length && SequentialBlank.isBlankOrWhitespace(rows[i + blankCounter])){
          ++blankCounter;
        }
        const reportPos = new Position(i + 1, 1);
        // fix has to start at end of previous row for it to properly delete the first row
        const startPos = new Position(i, rows[i].length + 1);
        const endPos = new Position(i + blankCounter, rows[i + blankCounter - 1].length + 1);
        const fix = EditHelper.deleteRange(file, startPos, endPos);
        const issue = Issue.atPosition(file, reportPos, this.getMessage(), this.getMetadata().key, this.conf.severity, fix);
        issues.push(issue);
      }
    }
 
    return issues;
  }
}