All files / src/abap/3_structures/structures _combi.ts

91.42% Statements 341/373
97.22% Branches 70/72
67.5% Functions 27/40
91.42% Lines 341/373

Press n or j to go to the next uncovered block, b, p or k for the previous block.

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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 3731x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 155x     155x 155x 1x 1x       1x 1x     1x 1x 141x 141x 1x 1x 9246x 9246x 9246x 21941x 21941x 4018x 4018x 4018x 4018x 4018x 4018x 4018x 4018x 17923x 17923x 17923x 5228x 5228x 5228x 5228x 5228x 5228x 5228x 5228x 1x 1x 1x 1x 1x 1x 1x 1x 1x 50x     50x 50x 1x 1x 17359x 17359x 49x 49x 588x 612x 217x 612x 395x 395x 612x 588x 49x 17359x 1x 1x 12x 12x 1x 1x       1x 1x     1x 1x 17359x 17359x 17359x 17359x 17359x 1x 1x 1x 1x 1x 1x 1x 1x 17358x 17358x 17359x 14474x 14474x 7635x 7635x 14474x 337x 337x 337x 14474x 9723x 17359x 11932x 11932x 5518x 5518x 11932x 253x 253x 253x 11932x 4205x 17359x 3615x 3615x 3615x 3615x 3615x 3615x 3615x 17359x 590x 590x 590x 590x 590x 590x 590x 590x 17359x 1x 1x 1x 1x 1x 1x 116x 116x 1x 1x     1x 1x     1x 1x 6128x 6128x 6128x 6128x 1x 1x     1x 1x 1x 1x 1x 1x 98x 98x 1x 1x     1x 1x     1x 1x 10517x 10517x 10517x 19293x 4946x 4946x 4946x 4946x 4946x 4946x 4946x 4946x 14347x 14347x 14347x 19293x 5571x 337x 337x 337x 337x 337x 337x 337x 5571x 5234x 5234x 5234x 5234x 5234x 5234x 5234x 5234x 5571x 8776x 8776x 8776x 10517x 1x 1x 5x 5x 1x 1x 1x 1x 1x 1x 1x 43x 43x 1x 1x     1x 1x     1x 1x 149x 149x 149x 1x 1x 17060x 43x 43x 43x 43x 17060x 1x 1x 16911x 16911x 16911x 16911x 6833x 16911x 10078x 10078x 16911x 16911x 1x 1x 1x 1x 1x 1x 734x 734x 1x 1x 571x 571x 12x 12x 559x 559x 1x 1x     1x 1x     1x 1x 17797x 17797x 1x 1x 30992x 547x 547x 547x 547x 547x 547x 547x 30992x 13195x 13195x 13195x 13195x 13195x 13195x 13195x 13195x 30445x 17250x 17250x 17250x 17250x 17250x 17250x 17250x 17250x 30992x 1x 1x 51x 51x 51x 1x 50x 50x 50x 1x 104x 104x 104x 1x 116x 116x 116x 1x 98x 98x 98x 1x 734x 734x 734x 1x 1x 291x 291x 43x 43x 291x 291x
import {IStructure} from "./_structure";
import {StructureNode, StatementNode} from "../../nodes";
import {INode} from "../../nodes/_inode";
import {IStatement, MacroCall, NativeSQL} from "../../2_statements/statements/_statement";
import {IStructureRunnable} from "./_structure_runnable";
import {IMatch} from "./_match";
 
class Sequence implements IStructureRunnable {
  private readonly list: IStructureRunnable[];
 
  public constructor(list: IStructureRunnable[]) {
    if (list.length < 2) {
      throw new Error("Sequence, length error");
    }
    this.list = list;
  }
 
  public toRailroad() {
    const children = this.list.map((e) => { return e.toRailroad(); });
    return "Railroad.Sequence(" + children.join() + ")";
  }
 
  public getUsing(): string[] {
    return this.list.reduce((a, c) => { return a.concat(c.getUsing()); }, [] as string[]);
  }
 
  public first() {
    return this.list[0].first();
  }
 
  public run(statements: StatementNode[], parent: INode): IMatch {
    let inn = statements;
    const out: StatementNode[] = [];
    for (const i of this.list) {
      const match = i.run(inn, parent);
      if (match.error) {
        return {
          matched: [],
          unmatched: statements,
          error: true,
          errorDescription: match.errorDescription,
          errorMatched: out.length,
        };
      }
      out.push(...match.matched);
      inn = match.unmatched;
    }
    return {
      matched: out,
      unmatched: inn,
      error: false,
      errorDescription: "",
      errorMatched: 0,
    };
  }
}
 
// Note that the Alternative does not nessesarily return the first in the alternative
// as a map is used for better performance
class Alternative implements IStructureRunnable {
  private readonly list: IStructureRunnable[];
  private map: {[index: string]: IStructureRunnable[]};
 
  public constructor(list: IStructureRunnable[]) {
    if (list.length < 2) {
      throw new Error("Alternative, length error");
    }
    this.list = list;
  }
 
  private setupMap() {
    // dont call from constructor, it will cause infinite loop
    if (this.map === undefined) {
      this.map = {};
      for (const i of this.list) {
        for (const first of i.first()) {
          if (this.map[first]) {
            this.map[first].push(i);
          } else {
            this.map[first] = [i];
          }
        }
      }
    }
  }
 
  public first() {
    return [""];
  }
 
  public toRailroad() {
    const children = this.list.map((e) => { return e.toRailroad(); });
    return "Railroad.Choice(0, " + children.join() + ")";
  }
 
  public getUsing() {
    return this.list.reduce((a, c) => { return a.concat(c.getUsing()); }, [] as string[]);
  }
 
  public run(statements: StatementNode[], parent: INode): IMatch {
    this.setupMap();
    let count = 0;
    let countError = "";
 
    if (statements.length === 0) {
      return {
        matched: [],
        unmatched: statements,
        error: true,
        errorDescription: countError,
        errorMatched: count,
      };
    }
 
    const token = statements[0].getFirstToken().getStr().toUpperCase();
    for (const i of this.map[token] || []) {
      const match = i.run(statements, parent);
      if (match.error === false) {
        return match;
      }
      if (match.errorMatched > count) {
        countError = match.errorDescription;
        count = match.errorMatched;
      }
    }
 
    for (const i of this.map[""] || []) {
      const match = i.run(statements, parent);
      if (match.error === false) {
        return match;
      }
      if (match.errorMatched > count) {
        countError = match.errorDescription;
        count = match.errorMatched;
      }
    }
 
    if (count === 0) {
      return {
        matched: [],
        unmatched: statements,
        error: true,
        errorDescription: "Unexpected code structure",
        errorMatched: count,
      };
    } else {
      return {
        matched: [],
        unmatched: statements,
        error: true,
        errorDescription: countError,
        errorMatched: count,
      };
    }
  }
}
 
class Optional implements IStructureRunnable {
  private readonly obj: IStructureRunnable;
 
  public constructor(obj: IStructureRunnable) {
    this.obj = obj;
  }
 
  public toRailroad() {
    return "Railroad.Optional(" + this.obj.toRailroad() + ")";
  }
 
  public getUsing() {
    return this.obj.getUsing();
  }
 
  public run(statements: StatementNode[], parent: INode): IMatch {
    const ret = this.obj.run(statements, parent);
    ret.error = false;
    return ret;
  }
 
  public first() {
    return [""];
  }
}
 
class Star implements IStructureRunnable {
  private readonly obj: IStructureRunnable;
 
  public constructor(obj: IStructureRunnable) {
    this.obj = obj;
  }
 
  public toRailroad() {
    return "Railroad.ZeroOrMore(" + this.obj.toRailroad() + ")";
  }
 
  public getUsing() {
    return this.obj.getUsing();
  }
 
  public run(statements: StatementNode[], parent: INode): IMatch {
    let inn = statements;
    const out: StatementNode[] = [];
    while (true) {
      if (inn.length === 0) {
        return {
          matched: out,
          unmatched: inn,
          error: false,
          errorDescription: "",
          errorMatched: 0,
        };
      }
 
      const match = this.obj.run(inn, parent);
 
      if (match.error === true) {
        if (match.errorMatched > 0) {
          return {
            matched: out,
            unmatched: inn,
            error: true,
            errorDescription: match.errorDescription,
            errorMatched: match.errorMatched,
          };
        } else {
          return {
            matched: out,
            unmatched: inn,
            error: false,
            errorDescription: "",
            errorMatched: 0,
          };
        }
      }
      out.push(...match.matched);
      inn = match.unmatched;
    }
  }
 
  public first() {
    return [""];
  }
}
 
class SubStructure implements IStructureRunnable {
  private readonly s: IStructure;
  private matcher: IStructureRunnable;
 
  public constructor(s: IStructure) {
    this.s = s;
  }
 
  public toRailroad() {
    return "Railroad.NonTerminal('" + this.s.constructor.name + "', {href: '#/structure/" + this.s.constructor.name + "'})";
  }
 
  public getUsing() {
    return ["structure/" + this.s.constructor.name];
  }
 
  public first() {
    this.setupMatcher();
    return this.matcher.first();
  }
 
  private setupMatcher() {
    if (this.matcher === undefined) {
      // SubStructures are singletons, so the getMatcher can be saved, its expensive to create
      // dont move this to the constructor, as it might trigger infinite recursion
      this.matcher = this.s.getMatcher();
    }
  }
 
  public run(statements: StatementNode[], parent: INode): IMatch {
    const nparent = new StructureNode(this.s);
    this.setupMatcher();
    const ret = this.matcher.run(statements, nparent);
    if (ret.matched.length === 0) {
      ret.error = true;
    } else {
      parent.addChild(nparent);
    }
    return ret;
  }
}
 
class SubStatement implements IStructureRunnable {
  private readonly obj: new () => IStatement;
 
  public constructor(obj: new () => IStatement) {
    this.obj = obj;
  }
 
  public first() {
    const o = new this.obj();
    if (o instanceof MacroCall || o instanceof NativeSQL) {
      return [""];
    }
    return o.getMatcher().first();
  }
 
  public toRailroad() {
    return "Railroad.Terminal('" + this.className() + "', {href: '#/statement/" + this.className() + "'})";
  }
 
  public getUsing() {
    return ["statement/" + this.className()];
  }
 
  private className() {
    return this.obj.name;
  }
 
  public run(statements: StatementNode[], parent: INode): IMatch {
    if (statements.length === 0) {
      return {
        matched: [],
        unmatched: [],
        error: true,
        errorDescription: "Expected " + this.className().toUpperCase(),
        errorMatched: 0,
      };
    } else if (statements[0].get() instanceof this.obj) {
      parent.addChild(statements[0]);
      return {
        matched: [statements[0]],
        unmatched: statements.splice(1),
        error: false,
        errorDescription: "",
        errorMatched: 0,
      };
    } else {
      return {
        matched: [],
        unmatched: statements,
        error: true,
        errorDescription: "Expected " + this.className().toUpperCase(),
        errorMatched: 0,
      };
    }
  }
}
 
export function seq(first: IStructureRunnable, ...rest: IStructureRunnable[]): IStructureRunnable {
  return new Sequence([first].concat(rest));
}
 
export function alt(first: IStructureRunnable, ...rest: IStructureRunnable[]): IStructureRunnable {
  return new Alternative([first].concat(rest));
}
 
export function beginEnd(begin: IStructureRunnable, body: IStructureRunnable, end: IStructureRunnable): IStructureRunnable {
  return new Sequence([begin, body, end]);
}
 
export function opt(o: IStructureRunnable): IStructureRunnable {
  return new Optional(o);
}
 
export function star(s: IStructureRunnable): IStructureRunnable {
  return new Star(s);
}
 
export function sta(s: new () => IStatement): IStructureRunnable {
  return new SubStatement(s);
}
 
const singletons: {[index: string]: SubStructure} = {};
export function sub(s: new () => IStructure): IStructureRunnable {
  if (singletons[s.name] === undefined) {
    singletons[s.name] = new SubStructure(new s());
  }
  return singletons[s.name];
}