All files / src/rules nesting.ts

100% Statements 82/82
100% Branches 24/24
100% Functions 7/7
100% Lines 82/82

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 821x 1x 1x 1x 1x 1x 1x 23499x 23499x 23499x 23499x 1x 11750x 11750x 11750x 11750x 11750x 46339x 46339x 46339x 46339x 46339x 46339x 46339x 46339x 46339x 11750x 11750x 1x 1x 11750x 11750x 11241x 11241x 11750x 11750x 239x 239x 11750x 11750x 251x 251x 251x 251x 251x 1436x 1436x 1436x 1436x 1436x 1436x 1436x 1436x 1436x 19x 1436x 1417x 1417x 1417x 1417x 1417x 1417x 8x 8x 1436x 1436x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1436x 251x 251x 251x 11750x 11750x
import {Issue} from "../issue";
import * as Statements from "../abap/2_statements/statements";
import {ABAPRule} from "./_abap_rule";
import {BasicRuleConfig} from "./_basic_rule_config";
import {RuleTag} from "./_irule";
import {ABAPFile} from "../abap/abap_file";
 
export class NestingConf extends BasicRuleConfig {
  /** Maximum allowed nesting depth */
  public depth: number = 5;
}
 
export class Nesting extends ABAPRule {
 
  private conf = new NestingConf();
 
  public getMetadata() {
    return {
      key: "nesting",
      title: "Check nesting depth",
      shortDescription: `Checks for methods exceeding a maximum nesting depth`,
      extendedInformation: `https://github.com/SAP/styleguides/blob/main/clean-abap/CleanABAP.md#keep-the-nesting-depth-low
https://docs.abapopenchecks.org/checks/74/`,
      tags: [RuleTag.Styleguide, RuleTag.SingleFile],
    };
  }
 
  private getDescription(max: string): string {
    return "Reduce nesting depth to max " + max;
  }
 
  public getConfig() {
    return this.conf;
  }
 
  public setConfig(conf: NestingConf) {
    this.conf = conf;
  }
 
  public runParsed(file: ABAPFile) {
    const issues: Issue[] = [];
 
    let depth: number = 0;
 
    for (const statement of file.getStatements()) {
      const type = statement.get();
 
      if (type instanceof Statements.If
        || type instanceof Statements.Case
        || type instanceof Statements.While
        || type instanceof Statements.Loop
        || type instanceof Statements.SelectLoop
        || type instanceof Statements.Do
        || type instanceof Statements.Try) {
        depth = depth + 1;
      } else if (type instanceof Statements.EndIf
        || type instanceof Statements.EndCase
        || type instanceof Statements.EndWhile
        || type instanceof Statements.EndLoop
        || type instanceof Statements.EndSelect
        || type instanceof Statements.EndDo
        || type instanceof Statements.EndTry) {
        depth = depth - 1;
      }
 
      if (depth > this.conf.depth) {
        const pos = statement.getFirstToken().getStart();
        const issue = Issue.atPosition(
          file,
          pos,
          this.getDescription(this.conf.depth.toString()),
          this.getMetadata().key,
          this.conf.severity);
        issues.push(issue);
        break; // only one finding per file
      }
    }
 
    return issues;
  }
 
}