All files / src/rules check_comments.ts

97.82% Statements 90/92
92% Branches 23/25
100% Functions 7/7
97.82% Lines 90/92

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 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 921x 1x 1x 1x 1x 1x 1x 23303x 23303x 23303x 23303x 23303x 1x 1x 1x 1x 11651x 11651x 11651x 11651x 34815x 34815x 34815x 34815x 34815x 34815x 34815x 34815x 34815x 34815x 34815x 34815x 34815x 34815x 11651x 11651x 15x 15x 15x 15x 15x 11651x 11651x 11400x 11400x 11651x 11651x 255x 255x 11651x 11651x 265x 265x 265x 7x 7x 258x 258x 265x     258x 258x 265x 1750x 1750x 15x 15x 1750x 258x 265x 1468x 1468x 25x 25x 10x 10x 15x 15x 15x 15x 15x 15x 15x 25x 1x 1x 25x 1468x 258x 258x 11651x
import {Issue} from "../issue";
import {Comment} from "../abap/2_statements/statements/_statement";
import {BasicRuleConfig} from "./_basic_rule_config";
import {ABAPRule} from "./_abap_rule";
import {IRuleMetadata, RuleTag} from "./_irule";
import {ABAPFile} from "../abap/abap_file";
 
export class CheckCommentsConf extends BasicRuleConfig {
  /** Allows the use of end-of-line comments. */
  public allowEndOfLine: boolean = false;
  public maxIssuesPerFile: number | undefined = 10;
}
 
enum IssueType {
  EndOfLine,
}
export class CheckComments extends ABAPRule {
  private conf = new CheckCommentsConf();
 
  public getMetadata(): IRuleMetadata {
    return {
      key: "check_comments",
      title: "Check Comments",
      shortDescription: `
Various checks for comment usage.`,
      extendedInformation: `
Detects end of line comments. Comments starting with "#EC" or "##" are ignored
 
https://github.com/SAP/styleguides/blob/main/clean-abap/CleanABAP.md#put-comments-before-the-statement-they-relate-to`,
      tags: [RuleTag.Styleguide, RuleTag.SingleFile],
      badExample: `WRITE 2. " descriptive comment`,
      goodExample: `" descriptive comment\nWRITE 2.`,
    };
  }
 
  private getDescription(issueType: IssueType): string {
    switch (issueType) {
      case IssueType.EndOfLine: return `Do not use end of line comments - move comment to previous row instead`;
      default: return "";
    }
  }
 
  public getConfig() {
    return this.conf;
  }
 
  public setConfig(conf: CheckCommentsConf) {
    this.conf = conf;
  }
 
  public runParsed(file: ABAPFile): Issue[] {
    const issues: Issue[] = [];
    const rows = file.getRawRows();
    if (this.conf.allowEndOfLine === true) {
      return [];
    }
 
    let max = this.getConfig().maxIssuesPerFile;
    if (max === undefined || max < 1) {
      max = 10;
    }
 
    const commentRows: number[] = [];
    for (let i = 0; i < rows.length; i++) {
      const row = rows[i];
      if (row.trim().startsWith("*") || row.trim().startsWith(`"`)) {
        commentRows.push(i);
      }
    }
    const statements = file.getStatements();
    for (let i = statements.length - 1; i >= 0; i--) {
      const statement = statements[i];
      if (statement.get() instanceof Comment && !commentRows.includes(statement.getStart().getRow() - 1)) {
        if (statement.getFirstToken().getStr().startsWith(`"#EC`)
            || statement.getFirstToken().getStr().startsWith(`"##`)) {
          continue;
        }
        issues.push(
          Issue.atStatement(
            file,
            statement,
            this.getDescription(IssueType.EndOfLine),
            this.getMetadata().key,
            this.conf.severity));
        if (issues.length >= max) {
          break;
        }
      }
    }
    return issues;
  }
}