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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 | 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 10893x 10893x 10893x 10893x 10893x 32492x 32492x 32492x 32492x 32492x 32492x 32492x 32492x 32492x 32492x 32492x 32492x 32492x 32492x 32492x 32492x 32492x 32492x 32492x 32492x 32492x 32492x 32492x 32492x 32492x 32492x 32492x 32492x 32492x 32492x 32492x 32492x 32492x 32492x 32492x 32492x 32492x 32492x 32492x 32492x 32492x 32492x 32492x 32492x 32492x 10893x 10893x 10345x 10345x 10893x 10893x 258x 258x 10893x 10893x 281x 281x 281x 20x 20x 261x 261x 281x 12x 12x 249x 249x 249x 249x 249x 281x 31x 31x 9x 9x 22x 22x 31x 5x 5x 17x 17x 31x 5x 5x 12x 12x 31x 8x 8x 4x 4x 4x 31x 31x 4x 4x 4x 4x 31x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 4x 4x 4x 4x 4x 249x 249x 249x 10893x 10893x | import {Issue} from "../issue"; import * as Statements from "../abap/2_statements/statements"; import * as Structures from "../abap/3_structures/structures"; import {ABAPRule} from "./_abap_rule"; import {BasicRuleConfig} from "./_basic_rule_config"; import {IRuleMetadata, RuleTag} from "./_irule"; import {ABAPFile} from "../abap/abap_file"; import {ABAPObject} from "../objects/_abap_object"; import {EditHelper, IEdit} from "../edit_helper"; export class IfInIfConf extends BasicRuleConfig { } export class IfInIf extends ABAPRule { private conf = new IfInIfConf(); public getMetadata(): IRuleMetadata { return { key: "if_in_if", title: "IF in IF", shortDescription: `Detects nested ifs which can be refactored.`, extendedInformation: ` Directly nested IFs without ELSE can be refactored to a single condition using AND. ELSE condtions with directly nested IF refactored to ELSEIF, quickfixes are suggested for this case. https://docs.abapopenchecks.org/checks/01/ https://github.com/SAP/styleguides/blob/main/clean-abap/CleanABAP.md#keep-the-nesting-depth-low`, badExample: `IF condition1. IF condition2. ... ENDIF. ENDIF. IF condition1. ... ELSE. IF condition2. ... ENDIF. ENDIF.`, goodExample: `IF ( condition1 ) AND ( condition2 ). ... ENDIF. IF condition1. ... ELSEIF condition2. ... ENDIF. CASE variable. WHEN value1. ... WHEN value2. IF condition2. ... ENDIF. ENDCASE.`, tags: [RuleTag.Styleguide, RuleTag.SingleFile, RuleTag.Quickfix], }; } public getConfig() { return this.conf; } public setConfig(conf: IfInIfConf) { this.conf = conf; } public runParsed(file: ABAPFile, obj: ABAPObject) { const issues: Issue[] = []; if (obj.getType() === "INTF") { return []; } const stru = file.getStructure(); if (stru === undefined) { return []; } let fixed = false; let possible = stru.findAllStructures(Structures.If); possible = possible.concat(stru.findAllStructures(Structures.Else)); for (const i of possible) { if (i.findDirectStructures(Structures.ElseIf).length > 0 || i.findDirectStructures(Structures.Else).length > 0) { continue; } const blist = i.findDirectStructures(Structures.Body); if (blist.length === 0) { continue; } const nlist = blist[0].findDirectStructures(Structures.Normal); if (nlist.length !== 1) { continue; } const niflist = nlist[0].findDirectStructures(Structures.If); if (niflist.length !== 1) { continue; } const nestedIf = niflist[0]; if (i.get() instanceof Structures.If && (nestedIf.findDirectStructures(Structures.ElseIf).length > 0 || nestedIf.findDirectStructures(Structures.Else).length > 0)) { continue; } let message = "IF in IF. Use IF cond1 AND cond2 instead"; let fix: IEdit | undefined = undefined; if (i.get() instanceof Structures.Else) { message = "Change ELSE part to ELSEIF"; const els = i.findFirstStatement(Statements.Else); const iff = i.findFirstStructure(Structures.If)?.findDirectStatement(Statements.If); const endif = i.findFirstStructure(Structures.If)?.findDirectStatement(Statements.EndIf); if (fixed === false && iff && els && endif) { const fix1 = EditHelper.deleteRange(file, els.getLastToken().getStart(), iff?.getFirstToken().getStart()); const fix2 = EditHelper.deleteStatement(file, endif); fix = EditHelper.merge(fix1, fix2); // max one fix per file at a time fixed = true; } } const token = i.getFirstToken(); const issue = Issue.atToken(file, token, message, this.getMetadata().key, this.conf.severity, fix); issues.push(issue); } return issues; } } |