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import * as Statements from "../abap/2_statements/statements";
import * as Expressions from "../abap/2_statements/expressions";
import {ABAPRule} from "./_abap_rule";
import {BasicRuleConfig} from "./_basic_rule_config";
import {Dynamic, ParameterListExceptions, Target} from "../abap/2_statements/expressions";
import {LanguageVersion, Release, releaseAtLeast} from "../version";
import {IRuleMetadata, RuleTag} from "./_irule";
import {EditHelper, IEdit} from "../edit_helper";
import {StatementNode} from "../abap/nodes";
import {ABAPFile} from "../abap/abap_file";
import {ABAPObject} from "../objects/_abap_object";
export class UseNewConf extends BasicRuleConfig {
}
export class UseNew extends ABAPRule {
private conf = new UseNewConf();
public getMetadata(): IRuleMetadata {
return {
key: "use_new",
title: "Use NEW",
shortDescription: `Checks for deprecated CREATE OBJECT statements.`,
extendedInformation: `https://github.com/SAP/styleguides/blob/main/clean-abap/CleanABAP.md#prefer-new-to-create-object
If the target variable is referenced in the CREATE OBJECT statement, no errors are issued
Applicable from v740sp02 and up`,
badExample: `CREATE OBJECT ref.`,
goodExample: `ref = NEW #( ).`,
tags: [RuleTag.Upport, RuleTag.Styleguide, RuleTag.Quickfix, RuleTag.SingleFile],
};
}
private getMessage(): string {
return "Use NEW #( ) to instantiate object.";
}
public getConfig() {
return this.conf;
}
public setConfig(conf: UseNewConf) {
this.conf = conf;
}
public runParsed(file: ABAPFile, obj: ABAPObject) {
const issues: Issue[] = [];
if (obj.getType() === "INTF") {
return [];
}
if (!releaseAtLeast(this.reg.getConfig().getRelease(), Release.v740sp02)
&& this.reg.getConfig().getLanguageVersion() !== LanguageVersion.Cloud) {
return [];
}
for (const statement of file.getStatements()) {
if (statement.get() instanceof Statements.CreateObject) {
if (statement.findFirstExpression(Dynamic)) {
continue;
} else if (statement.findDirectExpression(ParameterListExceptions)) {
continue;
} else if (statement.findDirectTokenByText("AREA")) {
continue;
}
const target = statement.findDirectExpression(Target)?.concatTokens() + "->";
if (statement.concatTokens().includes(target)) {
continue;
}
const fix = this.buildFix(file, statement);
const issue = Issue.atPosition(file, statement.getStart(), this.getMessage(), this.getMetadata().key, this.conf.severity, fix);
issues.push(issue);
}
}
return issues;
}
private buildFix(file: ABAPFile, statement: StatementNode): IEdit | undefined {
const target = statement.findDirectExpression(Expressions.Target)?.concatTokens();
if (target === undefined) {
return undefined;
}
const parameters = statement.findDirectExpression(Expressions.ParameterListS);
const param = parameters ? parameters.concatTokens() + " " : "";
let type = statement.findDirectExpression(Expressions.ClassName)?.getFirstToken().getStr();
if (type === undefined) {
type = "#";
}
const string = `${target} = NEW ${type}( ${param}).`;
return EditHelper.replaceRange(file, statement.getStart(), statement.getEnd(), string);
}
} |