All files / src/abap/5_syntax/statements move.ts

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import * as Expressions from "../../2_statements/expressions";
import {StatementNode} from "../../nodes";
import {CurrentScope} from "../_current_scope";
import {Source} from "../expressions/source";
import {Target} from "../expressions/target";
import {InlineData} from "../expressions/inline_data";
import {AbstractType} from "../../types/basic/_abstract_type";
import {StatementSyntax} from "../_statement_syntax";
import {TypeUtils} from "../_type_utils";
 
export class Move implements StatementSyntax {
  public runSyntax(node: StatementNode, scope: CurrentScope, filename: string): void {
    const targets = node.findDirectExpressions(Expressions.Target);
    const firstTarget = targets[0];
 
    const inline = firstTarget?.findDirectExpression(Expressions.InlineData);
 
    let targetType: AbstractType | undefined = undefined;
    if (inline === undefined) {
      targetType = firstTarget ? new Target().runSyntax(firstTarget, scope, filename) : undefined;
      for (const t of targets) {
        if (t === firstTarget) {
          continue;
        }
        new Target().runSyntax(t, scope, filename);
      }
    }
 
    const source = node.findDirectExpression(Expressions.Source);
    const sourceType = source ? new Source().runSyntax(source, scope, filename, targetType) : undefined;
 
    if (sourceType === undefined) {
      throw new Error("No source type determined");
    }
 
    if (inline) {
      new InlineData().runSyntax(inline, scope, filename, sourceType);
      targetType = sourceType;
    }
 
    if (TypeUtils.isAssignable(sourceType, targetType) === false) {
      throw new Error("Incompatible types");
    }
  }
}