All files / src/abap/5_syntax/structures constants.ts

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import * as Expressions from "../../2_statements/expressions";
import * as Statements from "../../2_statements/statements";
import * as Structures from "../../3_structures/structures";
import {StructureNode, StatementNode} from "../../nodes";
import {TypedIdentifier, IdentifierMeta} from "../../types/_typed_identifier";
import {IStructureComponent} from "../../types/basic";
import * as Basic from "../../types/basic";
import {Constant} from "../statements/constant";
import {SyntaxInput} from "../_syntax_input";
import {AssertError} from "../assert_error";
 
export class Constants {
  public runSyntax(node: StructureNode, input: SyntaxInput):
  {type: TypedIdentifier | undefined, values: {[index: string]: string} } {
 
    const name = node.findFirstExpression(Expressions.DefinitionName)?.getFirstToken();
    if (name === undefined) {
      throw new AssertError("Constants, structure, unexpected node");
    }
 
    const components: IStructureComponent[] = [];
    const values: any = {};
    for (const c of node.getChildren()) {
      const ctyp = c.get();
      if (c instanceof StatementNode && ctyp instanceof Statements.Constant) {
        const found = new Constant().runSyntax(c, input);
        if (found) {
          components.push({name: found.getName(), type: found.getType()});
          values[found.getName()] = found.getValue();
        }
      } else if (c instanceof StructureNode && ctyp instanceof Structures.Constants) {
        const {type: found, values: val} = new Constants().runSyntax(c, input);
        if (found) {
          components.push({name: found.getName(), type: found.getType()});
          values[found.getName()] = val;
        }
      }
    }
 
    if (components.length === 0) {
      return {type: undefined, values};
    }
 
    const type = new TypedIdentifier(name, input.filename,
                                     new Basic.StructureType(components),
                                     [IdentifierMeta.ReadOnly, IdentifierMeta.Static]);
    return {type, values};
  }
}