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import * as Statements from "../abap/2_statements/statements";
import {Issue} from "../issue";
import {ABAPRule} from "./_abap_rule";
import {BasicRuleConfig} from "./_basic_rule_config";
import {IRuleMetadata, RuleTag} from "./_irule";
import {ExpressionNode, StatementNode, TokenNode} from "../abap/nodes";
import {ABAPFile} from "../abap/abap_file";
import {EditHelper} from "../edit_helper";
export class ManyParenthesesConf extends BasicRuleConfig {
}
export class ManyParentheses extends ABAPRule {
private conf = new ManyParenthesesConf();
public getMetadata(): IRuleMetadata {
return {
key: "many_parentheses",
title: "Too many parentheses",
shortDescription: `Searches for expressions where extra parentheses can safely be removed`,
tags: [RuleTag.SingleFile, RuleTag.Quickfix],
badExample: `
IF ( destination IS INITIAL ).
ENDIF.
IF foo = boo AND ( bar = lar AND moo = loo ).
ENDIF.
`,
goodExample: `
IF destination IS INITIAL.
ENDIF.
IF foo = boo AND bar = lar AND moo = loo.
ENDIF.
`,
};
}
public getConfig() {
return this.conf;
}
public setConfig(conf: ManyParenthesesConf) {
this.conf = conf;
}
public runParsed(file: ABAPFile) {
const issues: Issue[] = [];
const structure = file.getStructure();
if (structure === undefined) {
return [];
}
for (const cond of structure.findAllExpressionsMulti([Expressions.Cond, Expressions.ComponentCond])) {
issues.push(...this.analyze(file, cond));
}
for (const sub of structure.findAllExpressionsMulti([Expressions.CondSub, Expressions.ComponentCondSub])) {
let cond: readonly ExpressionNode[] = [];
if (sub.get() instanceof Expressions.CondSub) {
cond = sub.findDirectExpressions(Expressions.Cond);
} else {
cond = sub.findDirectExpressions(Expressions.ComponentCond);
}
if (cond.length !== 1) {
continue;
}
if (cond[0].getChildren().length === 1) {
const message = "Too many parentheses, simple";
const children = sub.getChildren();
let startToken = sub.getFirstToken();
let fixText = sub.getChildren()[1].concatTokens();
if (startToken.getStr().toUpperCase() === "NOT") {
startToken = children[1].getFirstToken();
fixText = sub.getChildren()[2].concatTokens();
}
const fix = EditHelper.replaceRange(file, startToken.getStart(), sub.getLastToken().getEnd(), fixText);
const issue = Issue.atToken(file, startToken, message, this.getMetadata().key, this.conf.severity, fix);
issues.push(issue);
}
}
for (const m of structure.findAllStatements(Statements.Move)) {
issues.push(...this.analyzeMove(file, m));
}
for (const m of structure.findAllStatements(Statements.Select)) {
issues.push(...this.analyzeInto(file, m));
}
return issues;
}
////////////////////
private analyzeInto(file: ABAPFile, m: StatementNode): Issue[] {
const into = m.findFirstExpression(Expressions.SQLIntoList);
if (into === undefined) {
return [];
}
const second = into.getAllTokens()[1];
if (second === undefined || second.getStr() !== "(") {
return [];
}
const concat = into.concatTokens();
if (concat.endsWith(")") === true && concat.includes(",") === false) {
const issue = Issue.atStatement(file, m, "Too many parentheses", this.getMetadata().key, this.conf.severity);
return [issue];
}
return [];
}
private analyzeMove(file: ABAPFile, m: StatementNode): Issue[] {
const issues: Issue[] = [];
const children = m.getChildren();
const last = children[ children.length - 2];
const lastChildren = last.getChildren();
if (lastChildren.length === 3
&& lastChildren[0].getFirstToken().getStr() === "("
&& lastChildren[2].getFirstToken().getStr() === ")") {
const issue = Issue.atToken(file, last.getFirstToken(), "Too many parentheses", this.getMetadata().key, this.conf.severity);
issues.push(issue);
}
return issues;
}
private analyze(file: ABAPFile, cond: ExpressionNode): Issue[] {
const issues: Issue[] = [];
let comparator = "";
let found = false;
for (const c of cond.getChildren()) {
let current = "";
if (c instanceof TokenNode) {
current = c.get().getStr().toUpperCase();
} else if (c instanceof ExpressionNode
&& (c.get() instanceof Expressions.CondSub || c.get() instanceof Expressions.ComponentCondSub)) {
if (c.getFirstToken().getStr().toUpperCase() === "NOT") {
return [];
}
let i = c.findDirectExpression(Expressions.Cond);
if (i === undefined) {
i = c.findDirectExpression(Expressions.ComponentCond);
}
if (i === undefined) {
return [];
}
current = this.findComparator(i);
if (current !== "") {
found = true; // dont report for the simple case that contains quick fixes
}
}
if (comparator === "") {
comparator = current;
} else if (comparator !== "" && current !== "" && comparator !== current) {
return [];
}
}
if (comparator !== "" && comparator !== "MIXED" && found === true) {
const message = "Too many parentheses, complex";
const issue = Issue.atToken(file, cond.getFirstToken(), message, this.getMetadata().key, this.conf.severity);
issues.push(issue);
}
return issues;
}
private findComparator(cond: ExpressionNode): string {
let comparator = "";
const children = cond.getChildren();
for (const c of children) {
if (c instanceof TokenNode) {
const current = c.get().getStr().toUpperCase();
if (comparator === "") {
comparator = current;
} else if (current !== comparator) {
return "MIXED";
}
}
}
return comparator;
}
} |