All files / src/rules exit_or_check.ts

100% Statements 84/84
100% Branches 25/25
100% Functions 6/6
100% Lines 84/84

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 851x 1x 1x 1x 1x 1x 1x 1x 1x 30942x 30942x 30942x 30942x 1x 15472x 15472x 15472x 15472x 15472x 150637x 150637x 150637x 150637x 150637x 150637x 150637x 150637x 150637x 150637x 150637x 150637x 150637x 150637x 150637x 150637x 150637x 15472x 15472x 14908x 14908x 15472x 15472x 265x 265x 15472x 15472x 308x 308x 308x 308x 308x 1683x 1683x 1683x 1683x 1683x 1683x 8x 1683x 1675x 1675x 1675x 8x 1675x 5x 5x 5x 5x 5x 5x 5x 5x 1667x 2x 2x 2x 2x 2x 1683x 308x 308x 308x 15472x 15472x  
import {Issue} from "../issue";
import * as Statements from "../abap/2_statements/statements";
import {ABAPRule} from "./_abap_rule";
import {StatementNode} from "../abap/nodes";
import {BasicRuleConfig} from "./_basic_rule_config";
import {IRuleMetadata, RuleTag} from "./_irule";
import {ABAPFile} from "../abap/abap_file";
import {EditHelper} from "../edit_helper";
 
export class ExitOrCheckConf extends BasicRuleConfig {
  public allowExit: boolean = false;
  public allowCheck: boolean = false;
}
 
export class ExitOrCheck extends ABAPRule {
 
  private conf = new ExitOrCheckConf();
 
  public getMetadata(): IRuleMetadata {
    return {
      key: "exit_or_check",
      title: "Find EXIT or CHECK outside loops",
      shortDescription: `Detects usages of EXIT or CHECK statements outside of loops.
Use RETURN to leave procesing blocks instead.`,
      extendedInformation: `https://help.sap.com/doc/abapdocu_latest_index_htm/latest/en-US/abenleave_processing_blocks.html
https://help.sap.com/doc/abapdocu_latest_index_htm/latest/en-US/abapcheck_processing_blocks.html
https://github.com/SAP/styleguides/blob/main/clean-abap/CleanABAP.md#check-vs-return`,
      tags: [RuleTag.Styleguide, RuleTag.SingleFile, RuleTag.Quickfix],
      badExample: `CHECK is_valid = abap_true.
do_something( ).`,
      goodExample: `IF is_valid = abap_false.
  RETURN.
ENDIF.
do_something( ).`,
    };
  }
 
  public getConfig() {
    return this.conf;
  }
 
  public setConfig(conf: ExitOrCheckConf) {
    this.conf = conf;
  }
 
  public runParsed(file: ABAPFile) {
    const issues: Issue[] = [];
 
    const stack: StatementNode[] = [];
 
    for (const statement of file.getStatements()) {
      const get = statement.get();
      if (get instanceof Statements.Loop
          || get instanceof Statements.While
          || get instanceof Statements.LoopAtScreen
          || get instanceof Statements.SelectLoop
          || get instanceof Statements.Do) {
        stack.push(statement);
      } else if (get instanceof Statements.EndLoop
          || get instanceof Statements.EndWhile
          || get instanceof Statements.EndSelect
          || get instanceof Statements.EndDo) {
        stack.pop();
      } else if (this.conf.allowCheck === false && get instanceof Statements.Check && stack.length === 0) {
        const message = "CHECK is not allowed outside of loops";
        let tokensString = statement.concatTokens();
        tokensString = tokensString.replace(/^check /i, "CHECK ");
        tokensString = tokensString.split("CHECK")[1].trim();
        const replacement = "IF NOT " + tokensString + "\n  RETURN.\nENDIF.";
        const fix = EditHelper.replaceRange(file, statement.getFirstToken().getStart(), statement.getLastToken().getEnd(), replacement);
        const issue = Issue.atStatement(file, statement, message, this.getMetadata().key, this.conf.severity, fix);
        issues.push(issue);
      } else if (this.conf.allowExit === false && get instanceof Statements.Exit && stack.length === 0) {
        const message = "EXIT is not allowed outside of loops";
        const fix = EditHelper.replaceToken(file, statement.getFirstToken(), "RETURN");
        const issue = Issue.atStatement(file, statement, message, this.getMetadata().key, this.conf.severity, fix);
        issues.push(issue);
      }
    }
 
    return issues;
  }
 
}