All files / src/rules obsolete_statement.ts

99.44% Statements 178/179
96.2% Branches 152/158
100% Functions 7/7
99.44% Lines 178/179

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 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 3611x 1x 1x 1x   1x 1x 1x 1x 1x       1x   14530x   14530x   14530x   14530x   14530x   14530x   14530x   14530x   14530x   14530x   14530x   14530x   14530x   14530x   14530x   14530x   14530x   14530x   14530x   14530x   14530x     1x   7266x     21711x                                                                               7008x       114x       210x   210x 210x 210x   210x 810x 810x                       26x 25x 25x 25x 25x   26x     810x 1x 1x     810x 1x 1x     810x 1x 1x     810x 4x   4x 2x 2x 2x       810x 3x 3x 3x 2x 2x 2x 2x     3x 3x     810x       3x 3x 1x 1x       810x 17x 17x 17x 4x 4x 4x         810x 810x       17x 17x 5x 5x       810x 69x 69x 1x 1x         810x 68x 2x 2x 2x 2x         810x 2x 2x 1x 1x       810x 2x 2x 2x     810x 2x 2x 1x 1x       810x 3x 3x 1x 1x       210x       25x 3x 1x     2x   22x 4x 4x 2x 2x 2x 2x     2x 2x 2x 2x     18x   4x 4x 4x 4x   4x 2x   2x 2x     4x   14x   4x 4x 4x 4x   4x 2x   2x 2x     4x   10x 6x 1x     5x 5x 5x   5x 5x 3x     2x     5x   5x   4x     4x 4x 2x     2x     4x 4x 4x            
import * as Statements from "../abap/2_statements/statements";
import * as Expressions from "../abap/2_statements/expressions";
import {Issue} from "../issue";
import {ABAPRule} from "./_abap_rule";
import {ABAPFile} from "../abap/abap_file";
import {BasicRuleConfig} from "./_basic_rule_config";
import {Position} from "../position";
import {IRuleMetadata, RuleTag} from "./_irule";
import {Version} from "../version";
import {EditHelper, IEdit} from "../edit_helper";
import {IStatement} from "../abap/2_statements/statements/_statement";
import {StatementNode} from "../abap/nodes";
 
export class ObsoleteStatementConf extends BasicRuleConfig {
  /** Check for REFRESH statement */
  public refresh: boolean = true;
  /** Check for COMPUTE statement */
  public compute: boolean = true;
  /** Check for ADD statement */
  public add: boolean = true;
  /** Check for SUBTRACT statement */
  public subtract: boolean = true;
  /** Check for MULTIPLY statement */
  public multiply: boolean = true;
  /** Check for DIVIDE statement */
  public divide: boolean = true;
  /** Check for MOVE statement */
  public move: boolean = true;
  /** Checks for usages of IS REQUESTED */
  public requested: boolean = true;
  /** Checks for usages of OCCURS */
  public occurs: boolean = true;
  /** Checks for SET EXTENDED CHECK */
  public setExtended: boolean = true;
  /** Checks for WITH HEADER LINE */
  public withHeaderLine: boolean = true;
  /** Checks for FIELD-SYMBOLS ... STRUCTURE */
  public fieldSymbolStructure: boolean = true;
  /** Checks for TYPE-POOLS */
  public typePools: boolean = true;
  /** Checks for addition LOAD */
  public load: boolean = true;
  /** Checks for PARAMETER */
  public parameter: boolean = true;
  /** Checks for RANGES */
  public ranges: boolean = true;
  /** Checks for COMMUNICATION */
  public communication: boolean = true;
  /** Checks for PACK */
  public pack: boolean = true;
  /** Checks for SELECT without INTO */
  public selectWithoutInto: boolean = true;
  /** FREE MEMORY, without ID */
  public freeMemory: boolean = true;
  /** Checks for EXIT FROM SQL */
  public exitFromSQL: boolean = true;
}
 
export class ObsoleteStatement extends ABAPRule {
 
  private conf = new ObsoleteStatementConf();
 
  public getMetadata(): IRuleMetadata {
    return {
      key: "obsolete_statement",
      title: "Obsolete statements",
      shortDescription: `Checks for usages of certain obsolete statements`,
      tags: [RuleTag.SingleFile, RuleTag.Styleguide, RuleTag.Quickfix],
      extendedInformation: `
https://github.com/SAP/styleguides/blob/main/clean-abap/CleanABAP.md#prefer-functional-to-procedural-language-constructs
 
https://github.com/SAP/styleguides/blob/main/clean-abap/CleanABAP.md#avoid-obsolete-language-elements
 
SET EXTENDED CHECK: https://help.sap.com/doc/abapdocu_751_index_htm/7.51/en-us/abapset_extended_check.htm
 
IS REQUESTED: https://help.sap.com/doc/abapdocu_750_index_htm/7.50/en-US/abenlogexp_requested.htm
 
WITH HEADER LINE: https://help.sap.com/doc/abapdocu_750_index_htm/7.50/en-US/abapdata_header_line.htm
 
FIELD-SYMBOLS STRUCTURE: https://help.sap.com/doc/abapdocu_751_index_htm/7.51/en-us/abapfield-symbols_obsolete_typing.htm
 
TYPE-POOLS: from 702, https://help.sap.com/doc/abapdocu_752_index_htm/7.52/en-US/abennews-71-program_load.htm
 
LOAD addition: from 702, https://help.sap.com/doc/abapdocu_752_index_htm/7.52/en-US/abennews-71-program_load.htm
 
COMMUICATION: https://help.sap.com/doc/abapdocu_751_index_htm/7.51/en-us/abapcommunication.htm
 
OCCURS: https://help.sap.com/doc/abapdocu_751_index_htm/7.51/en-us/abapdata_occurs.htm
 
PARAMETER: https://help.sap.com/doc/abapdocu_751_index_htm/7.51/en-US/abapparameter.htm
 
RANGES: https://help.sap.com/doc/abapdocu_752_index_htm/7.52/en-US/abapranges.htm
 
PACK: https://help.sap.com/doc/abapdocu_751_index_htm/7.51/en-us/abappack.htm
 
SELECT without INTO: https://help.sap.com/doc/abapdocu_731_index_htm/7.31/en-US/abapselect_obsolete.htm
SELECT COUNT(*) is considered okay
 
FREE MEMORY: https://help.sap.com/doc/abapdocu_752_index_htm/7.52/en-us/abapfree_mem_id_obsolete.htm`,
    };
  }
 
  public getConfig() {
    return this.conf;
  }
 
  public setConfig(conf: ObsoleteStatementConf) {
    this.conf = conf;
  }
 
  public runParsed(file: ABAPFile) {
    const issues: Issue[] = [];
 
    const statements = file.getStatements();
    let prev: Position | undefined = undefined;
    const configVersion = this.reg.getConfig().getVersion();
 
    for (const staNode of statements) {
      const sta = staNode.get();
      if ((sta instanceof Statements.Refresh && this.conf.refresh)
          || (sta instanceof Statements.Compute && this.conf.compute)
          || (sta instanceof Statements.Add && this.conf.add)
          || (sta instanceof Statements.Subtract && this.conf.subtract)
          || (sta instanceof Statements.ClassDefinitionLoad && this.conf.load && configVersion >= Version.v702)
          || (sta instanceof Statements.InterfaceLoad && this.conf.load && configVersion >= Version.v702)
          || (sta instanceof Statements.Multiply && this.conf.multiply)
          || (sta instanceof Statements.Divide && this.conf.divide)
          || (sta instanceof Statements.Move && this.conf.move
          && staNode.getTokens()[0].getStr().toUpperCase() === "MOVE"
          && staNode.getTokens()[1].getStr() !== "-"
          && staNode.getTokens()[1].getStr().toUpperCase() !== "EXACT") ) {
        if (prev === undefined || staNode.getStart().getCol() !== prev.getCol() || staNode.getStart().getRow() !== prev.getRow()) {
          const message = "Statement \"" + staNode.getFirstToken().getStr() + "\" is obsolete";
          const fix = this.getFix(file, sta, staNode);
          const issue = Issue.atStatement(file, staNode, message, this.getMetadata().key, this.conf.severity, fix);
          issues.push(issue);
        }
        prev = staNode.getStart();
      }
 
      if (this.conf.setExtended && sta instanceof Statements.SetExtendedCheck) {
        const issue = Issue.atStatement(file, staNode, "SET EXTENDED CHECK is obsolete", this.getMetadata().key, this.conf.severity);
        issues.push(issue);
      }
 
      if (this.conf.communication && sta instanceof Statements.Communication) {
        const issue = Issue.atStatement(file, staNode, "COMMUNICATION is obsolete", this.getMetadata().key, this.conf.severity);
        issues.push(issue);
      }
 
      if (this.conf.pack && sta instanceof Statements.Pack) {
        const issue = Issue.atStatement(file, staNode, "PACK is obsolete", this.getMetadata().key, this.conf.severity);
        issues.push(issue);
      }
 
      if (this.conf.parameter && sta instanceof Statements.Parameter) {
        const token = staNode.getFirstToken();
 
        if (token.getStr().toUpperCase() === "PARAMETER") {
          const fix = EditHelper.replaceToken(file, token, "PARAMETERS");
          const issue = Issue.atStatement(file, staNode, "Use PARAMETERS instead of PARAMETER", this.getMetadata().key, this.conf.severity, fix);
          issues.push(issue);
        }
      }
 
      if (this.conf.ranges && sta instanceof Statements.Ranges) {
        const children = staNode.getChildren();
        let fix = undefined;
        if (children.length === 5) {
          const simpleNameString = children[1].concatTokens();
          const fieldSubString = children[3].concatTokens();
          const replacement = "TYPES " + simpleNameString + " LIKE RANGE OF " + fieldSubString + ".";
          fix = EditHelper.replaceRange(file, staNode.getStart(), staNode.getEnd(), replacement);
        }
 
        const issue = Issue.atStatement(file, staNode, "Use LIKE RANGE OF instead of RANGES", this.getMetadata().key, this.conf.severity, fix);
        issues.push(issue);
      }
 
      if (this.conf.selectWithoutInto
          && (sta instanceof Statements.Select || sta instanceof Statements.SelectLoop)
          && staNode.findFirstExpression(Expressions.SQLIntoStructure) === undefined
          && staNode.findFirstExpression(Expressions.SQLIntoTable) === undefined) {
        const concat = staNode.findFirstExpression(Expressions.SQLFieldList)?.concatTokens().toUpperCase();
        if (concat !== "COUNT(*)" && concat !== "COUNT( * )") {
          const issue = Issue.atStatement(file, staNode, "SELECT without INTO", this.getMetadata().key, this.conf.severity);
          issues.push(issue);
        }
      }
 
      if (this.conf.requested && sta instanceof Statements.If) {
        for (const compare of staNode.findAllExpressions(Expressions.Compare)) {
          const token = compare.findDirectTokenByText("REQUESTED");
          if (token) {
            const fix = EditHelper.replaceToken(file, token, "SUPPLIED");
            const issue = Issue.atToken(file, token, "IS REQUESTED is obsolete", this.getMetadata().key, this.conf.severity, fix);
            issues.push(issue);
          }
        }
      }
 
      Eif (this.conf.occurs) {
        if ((sta instanceof Statements.Describe)
          || (sta instanceof Statements.Ranges)
          || (sta instanceof Statements.DataBegin)
          || (sta instanceof Statements.TypeBegin)) {
          const token = staNode.findDirectTokenByText("OCCURS");
          if (token) {
            const issue = Issue.atToken(file, token, "OCCURS is obsolete", this.getMetadata().key, this.conf.severity);
            issues.push(issue);
          }
        }
 
        for (const dataDef of staNode.findAllExpressions(Expressions.DataDefinition)) {
          const token = dataDef.findDirectExpression(Expressions.TypeTable)?.findDirectTokenByText("OCCURS");
          if (token) {
            const issue = Issue.atToken(file, token, "OCCURS is obsolete", this.getMetadata().key, this.conf.severity);
            issues.push(issue);
          }
        }
      }
 
      if (this.conf.withHeaderLine === true && sta instanceof Statements.Data) {
        if (staNode.concatTokens().toUpperCase().includes("WITH HEADER LINE")) {
          const token = staNode.getFirstToken();
          Eif (token) {
            const issue = Issue.atToken(file, token, "WITH HEADER LINE is obsolete", this.getMetadata().key, this.conf.severity);
            issues.push(issue);
          }
        }
      }
 
      if (this.conf.fieldSymbolStructure && sta instanceof Statements.FieldSymbol){
        const token = staNode.findDirectTokenByText("STRUCTURE");
        if (token) {
          const issue = Issue.atToken(file, token, "FIELD-SYMBOLS ... STRUCTURE is obsolete", this.getMetadata().key, this.conf.severity);
          issues.push(issue);
        }
      }
 
      if (this.conf.typePools && sta instanceof Statements.TypePools && configVersion >= Version.v702){
        const fix = EditHelper.deleteStatement(file, staNode);
        const issue = Issue.atStatement(file, staNode, "Statement \"TYPE-POOLS\" is obsolete", this.getMetadata().key, this.conf.severity, fix);
        issues.push(issue);
      }
 
      if (this.conf.freeMemory && sta instanceof Statements.FreeMemory) {
        const concat = staNode.concatTokens().toUpperCase();
        if (concat === "FREE MEMORY.") {
          const issue = Issue.atStatement(file, staNode, "Statement \"FREE MEMORY\" without ID is obsolete", this.getMetadata().key, this.conf.severity);
          issues.push(issue);
        }
      }
 
      if (this.conf.exitFromSQL && sta instanceof Statements.Exit) {
        const concat = staNode.concatTokens().toUpperCase();
        if (concat === "EXIT FROM SQL.") {
          const issue = Issue.atStatement(file, staNode, "Statement \"EXIT FROM SQL\" is obsolete", this.getMetadata().key, this.conf.severity);
          issues.push(issue);
        }
      }
    }
    return issues;
  }
 
  private getFix(file: ABAPFile, statement: IStatement, statementNode: StatementNode): IEdit | undefined {
    if (statement instanceof Statements.Refresh) {
      if (statementNode.getChildren().length === 6) {
        return undefined;
      }
 
      return EditHelper.replaceToken(file, statementNode.getFirstToken(), "CLEAR");
    }
    else if (statement instanceof Statements.Compute) {
      const children = statementNode.getChildren();
      if (children.length === 5) {
        const tokenForDeletion = statementNode.getFirstToken();
        let endPosition = tokenForDeletion.getEnd();
        endPosition = new Position(endPosition.getRow(), endPosition.getCol() + 1);
        return EditHelper.deleteRange(file, tokenForDeletion.getStart(), endPosition);
      }
      else {
        const targetString = children[2].concatTokens();
        const sourceString = children[4].concatTokens();
        const replacement = targetString + " = EXACT #( " + sourceString + " ).";
        return EditHelper.replaceRange(file, statementNode.getStart(), statementNode.getEnd(), replacement);
      }
    }
    else if (statement instanceof Statements.Add ||
            statement instanceof Statements.Subtract) {
      const children = statementNode.getChildren();
      const sourceString = children[1].concatTokens();
      const targetString = children[3].concatTokens();
      let replacement = "";
 
      if (statement instanceof Statements.Add) {
        replacement = targetString + " = " + targetString + " + " + sourceString + ".";
      }
      else Eif (statement instanceof Statements.Subtract) {
        replacement = targetString + " = " + targetString + " - " + sourceString + ".";
      }
 
      return EditHelper.replaceRange(file, statementNode.getStart(), statementNode.getEnd(), replacement);
    }
    else if (statement instanceof Statements.Multiply ||
          statement instanceof Statements.Divide) {
      const children = statementNode.getChildren();
      const targetString = children[1].concatTokens();
      const sourceString = children[3].concatTokens();
      let replacement = "";
 
      if (statement instanceof Statements.Multiply) {
        replacement = targetString + " = " + targetString + " * " + sourceString + ".";
      }
      else Eif (statement instanceof Statements.Divide) {
        replacement = targetString + " = " + targetString + " / " + sourceString + ".";
      }
 
      return EditHelper.replaceRange(file, statementNode.getStart(), statementNode.getEnd(), replacement);
    }
    else if (statement instanceof Statements.Move) {
      if (statementNode.getColon() !== undefined) {
        return undefined;
      }
 
      const children = statementNode.getChildren();
      const sourceString = children[1].concatTokens();
      const targetString = children[3].concatTokens();
 
      let operator = children[2].concatTokens();
      if (operator === "TO") {
        operator = " = ";
      }
      else {
        operator = " ?= ";
      }
 
      const replacement = targetString + operator + sourceString + ".";
 
      return EditHelper.replaceRange(file, statementNode.getStart(), statementNode.getEnd(), replacement);
    }
    else Eif (statement instanceof Statements.ClassDefinitionLoad ||
            statement instanceof Statements.InterfaceLoad) {
 
      let token = undefined;
      if (statement instanceof Statements.ClassDefinitionLoad) {
        token = statementNode.getChildren()[3].getFirstToken();
      }
      else {
        token = statementNode.getChildren()[2].getFirstToken();
      }
 
      let startPosition = token.getStart();
      startPosition = new Position(startPosition.getRow(), startPosition.getCol() - 1);
      return EditHelper.deleteRange(file, startPosition, token.getEnd());
    }
 
    return undefined;
  }
}