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import * as Statements from "../abap/2_statements/statements";
import * as Expressions from "../abap/2_statements/expressions";
import * as Structures from "../abap/3_structures/structures";
import {ABAPRule} from "./_abap_rule";
import {BasicRuleConfig} from "./_basic_rule_config";
import {Version} from "../version";
import {IRuleMetadata, RuleTag} from "./_irule";
import {EditHelper} from "../edit_helper";
import {ABAPFile} from "../abap/abap_file";
// note this rule assumes abap_true and abap_false is used for boolean variables
// some other rule will in the future find assignments to abap_bool that are not abap_true/abap_false/abap_undefined
export class UseBoolExpressionConf extends BasicRuleConfig {
}
export class UseBoolExpression extends ABAPRule {
private conf = new UseBoolExpressionConf();
public getMetadata(): IRuleMetadata {
return {
key: "use_bool_expression",
title: "Use boolean expression",
shortDescription: `Use boolean expression, xsdbool from 740sp08 and up, boolc from 702 and up`,
extendedInformation:
`https://github.com/SAP/styleguides/blob/main/clean-abap/CleanABAP.md#use-xsdbool-to-set-boolean-variables`,
tags: [RuleTag.Upport, RuleTag.Styleguide, RuleTag.Quickfix, RuleTag.SingleFile],
badExample: `IF line IS INITIAL.
has_entries = abap_false.
ELSE.
has_entries = abap_true.
ENDIF.
DATA(fsdf) = COND #( WHEN foo <> bar THEN abap_true ELSE abap_false ).`,
goodExample: `DATA(has_entries) = xsdbool( line IS NOT INITIAL ).
DATA(fsdf) = xsdbool( foo <> bar ).`,
};
}
public getConfig() {
return this.conf;
}
public setConfig(conf: UseBoolExpressionConf) {
this.conf = conf;
}
public runParsed(file: ABAPFile) {
const issues: Issue[] = [];
const stru = file.getStructure();
const version = this.reg.getConfig().getVersion();
if (stru === undefined || (version < Version.v702 && version !== Version.Cloud)) {
return [];
}
for (const i of stru.findAllStructures(Structures.If)) {
if (i.findDirectStructure(Structures.ElseIf) !== undefined) {
continue;
}
const bodyNodes = i.findDirectStructure(Structures.Body)?.findAllStatementNodes();
if (bodyNodes === undefined || bodyNodes.length !== 1) {
continue;
}
const bodyStatement = bodyNodes[0];
if (!(bodyStatement.get() instanceof Statements.Move)) {
continue;
}
const elseNodes = i.findDirectStructure(Structures.Else)?.findDirectStructure(Structures.Body)?.findAllStatementNodes();
if (elseNodes === undefined || elseNodes.length !== 1) {
continue;
}
const elseStatement = elseNodes[0];
if (!(elseStatement.get() instanceof Statements.Move)) {
continue;
}
let bodyTarget = bodyStatement.findFirstExpression(Expressions.Target)?.concatTokens();
if (bodyTarget?.startsWith("DATA(")) {
bodyTarget = bodyTarget.substr(5, bodyTarget.length - 6);
}
const elseTarget = elseStatement.findFirstExpression(Expressions.Target)?.concatTokens();
if (bodyTarget === undefined
|| elseTarget === undefined
|| bodyTarget.toUpperCase() !== elseTarget.toUpperCase()) {
continue;
}
const bodySource = bodyStatement.findFirstExpression(Expressions.Source)?.concatTokens().toUpperCase();
const elseSource = elseStatement.findFirstExpression(Expressions.Source)?.concatTokens().toUpperCase();
if ((bodySource === "ABAP_TRUE" && elseSource === "ABAP_FALSE")
|| (bodySource === "ABAP_FALSE" && elseSource === "ABAP_TRUE")) {
const func = (this.reg.getConfig().getVersion() >= Version.v740sp08
|| this.reg.getConfig().getVersion() === Version.Cloud) ? "xsdbool" : "boolc";
const negate = bodySource === "ABAP_FALSE";
const message = `Use ${func} instead of IF` + (negate ? ", negate expression" : "");
const start = i.getFirstToken().getStart();
const end = i.getLastToken().getEnd();
const statement = bodyTarget + " = " + func + "( " +
(negate ? "NOT ( " : "") +
i.findFirstStatement(Statements.If)?.findFirstExpression(Expressions.Cond)?.concatTokens() +
(negate ? " )" : "") +
" ).";
const fix = EditHelper.replaceRange(file, start, end, statement);
issues.push(Issue.atRange(file, start, end, message, this.getMetadata().key, this.conf.severity, fix));
}
}
if (version >= Version.v740sp08 || version === Version.Cloud) {
for (const b of stru.findAllExpressions(Expressions.CondBody)) {
const concat = b.concatTokens().toUpperCase();
if (concat.endsWith(" THEN ABAP_TRUE ELSE ABAP_FALSE")
|| concat.endsWith(" THEN ABAP_TRUE")
|| concat.endsWith(" THEN ABAP_FALSE ELSE ABAP_TRUE")) {
const message = "Use xsdbool";
// eslint-disable-next-line max-len
issues.push(Issue.atRange(file, b.getFirstToken().getStart(), b.getLastToken().getEnd(), message, this.getMetadata().key, this.conf.severity));
}
}
}
return issues;
}
} |