All files / src/abap/5_syntax/expressions new_object.ts

94.52% Statements 69/73
86.15% Branches 56/65
100% Functions 3/3
94.52% Lines 69/73

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    1x 1x   1x 1x 1x   1x 1x   1x   50x   50x 50x 50x 50x   50x 14x 14x   14x 14x 1x   36x 7x 29x       49x 29x 29x 15x 15x 15x 15x 1x   14x       48x 14x 14x 14x 2x 12x 4x 8x 8x           48x 27x   21x 9x       47x 2x     45x       27x 27x 27x   27x   27x 27x 27x   5x 5x 1x   4x 22x   1x     1x           5x 5x 1x   4x 4x 4x 4x     4x      
import {ExpressionNode} from "../../nodes";
import {CurrentScope} from "../_current_scope";
import {ObjectReferenceType, VoidType, DataReference, UnknownType} from "../../types/basic";
import * as Expressions from "../../2_statements/expressions";
import {AbstractType} from "../../types/basic/_abstract_type";
import {ReferenceType} from "../_reference";
import {Source} from "./source";
import {ObjectOriented} from "../_object_oriented";
import {IMethodDefinition} from "../../types/_method_definition";
import {MethodParameters} from "./method_parameters";
import {BasicTypes} from "../basic_types";
 
export class NewObject {
  public runSyntax(node: ExpressionNode, scope: CurrentScope, targetType: AbstractType | undefined, filename: string): AbstractType {
    let ret: AbstractType | undefined = undefined;
 
    const typeExpr = node.findDirectExpression(Expressions.TypeNameOrInfer);
    const typeToken = typeExpr?.getFirstToken();
    const typeName = typeExpr?.concatTokens();
    Iif (typeName === undefined) {
      throw new Error("NewObject, child TypeNameOrInfer not found");
    } else if (typeName === "#" && targetType && targetType instanceof ObjectReferenceType) {
      scope.addReference(typeToken, targetType.getIdentifier(), ReferenceType.InferredType, filename);
      ret = targetType;
 
      const clas = scope.findClassDefinition(targetType.getIdentifierName());
      if (clas?.isAbstract() === true) {
        throw new Error(clas.getName() + " is abstract, cannot be instantiated");
      }
    } else if (typeName === "#" && targetType) {
      ret = targetType;
    } else Iif (typeName === "#") {
      throw new Error("NewObject, todo, infer type");
    }
 
    if (ret === undefined) {
      const objDefinition = scope.findObjectDefinition(typeName);
      if (objDefinition) {
        scope.addReference(typeToken, objDefinition, ReferenceType.ObjectOrientedReference, filename);
        const objref = new ObjectReferenceType(objDefinition);
        const clas = scope.findClassDefinition(objref.getIdentifierName());
        if (clas?.isAbstract() === true) {
          throw new Error(clas.getName() + " is abstract, cannot be instantiated");
        }
        ret = objref;
      }
    }
 
    if (ret === undefined) {
      const basic = new BasicTypes(filename, scope);
      const type = basic.resolveTypeName(typeExpr);
      if (type instanceof UnknownType) {
        ret = type;
      } else if (type && !(type instanceof VoidType)) {
        ret = new DataReference(type);
      } else Eif (type instanceof VoidType) {
        ret = type;
      } else {
        throw new Error("Type \"" + typeName + "\" not found in scope, NewObject");
      }
    }
 
    if (ret instanceof ObjectReferenceType) {
      this.parameters(node, ret, scope, filename);
    } else {
      for (const s of node.findAllExpressions(Expressions.Source)) {
        new Source().runSyntax(s, scope, filename, ret);
      }
    }
 
    if (ret instanceof UnknownType && scope.getDDIC().inErrorNamespace(typeName) === true) {
      throw new Error("Class or type \"" + typeName + "\" not found");
    }
 
    return ret;
  }
 
  private parameters(node: ExpressionNode, obj: ObjectReferenceType, scope: CurrentScope, filename: string) {
    const name = obj.getIdentifier().getName();
    const def = scope.findObjectDefinition(name);
    const helper = new ObjectOriented(scope);
    // eslint-disable-next-line prefer-const
    let {method} = helper.searchMethodName(def, "CONSTRUCTOR");
 
    const source = node.findDirectExpression(Expressions.Source);
    const parameters = node.findDirectExpression(Expressions.ParameterListS);
    if (source) {
      // single unnamed parameter
      const type = this.defaultImportingType(method);
      if (type === undefined) {
        throw new Error("NewObject, no default importing parameter found for constructor, " + name);
      }
      new Source().runSyntax(source, scope, filename, type);
    } else if (parameters) {
      // parameters with names
      Iif (method === undefined) {
        throw new Error("NewObject, no parameters for constructor found, " + name);
      }
      new MethodParameters().checkExporting(parameters, scope, method, filename);
    }
    // else: no paramters, and the constructor always exist
  }
 
  private defaultImportingType(method: IMethodDefinition | undefined) {
    let targetType: AbstractType | undefined = undefined;
    if (method === undefined) {
      return undefined;
    }
    const name = method.getParameters().getDefaultImporting();
    for (const i of method.getParameters().getImporting()) {
      Eif (i.getName().toUpperCase() === name) {
        targetType = i.getType();
      }
    }
    return targetType;
  }
 
}