All files / src/abap/2_statements/expressions compare.ts

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100% Branches 1/1
100% Functions 1/1
100% Lines 38/38

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import {seq, ver, tok, plus, opt, optPrio, altPrio, Expression} from "../combi";
import {FieldSub, ClassName, Constant, Source, MethodCallChain, CompareOperator, SourceFieldSymbol} from ".";
import {WParenLeft, ParenRightW} from "../../1_lexer/tokens";
import {Version} from "../../../version";
import {IStatementRunnable} from "../statement_runnable";
 
export class Compare extends Expression {
  public getRunnable(): IStatementRunnable {
    const val = altPrio(FieldSub, Constant);
 
    const list = seq(tok(WParenLeft),
                     val,
                     plus(seq(",", val)),
                     tok(ParenRightW));
 
    const inn = seq(optPrio("NOT"), "IN", altPrio(Source, list));
 
    const sopt = seq("IS",
                     optPrio("NOT"),
                     altPrio("SUPPLIED",
                             "BOUND",
                             ver(Version.v750, seq("INSTANCE OF", ClassName)),
                             "REQUESTED",
                             "INITIAL"));
 
    const between = seq(optPrio("NOT"), "BETWEEN", Source, "AND", Source);
 
    const predicate = ver(Version.v740sp08, MethodCallChain);
 
    const rett = seq(Source, altPrio(seq(CompareOperator, Source), inn, between, sopt));
 
    const fsassign = seq(SourceFieldSymbol, "IS", optPrio("NOT"), "ASSIGNED");
 
    const ret = seq(opt("NOT"), altPrio(rett, predicate, fsassign));
 
    return ret;
  }
}