statements parameter.ts

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80% Branches 8/10

100% Functions 1/1

91.48% Lines 43/47

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import * as Expressions from "../../2_statements/expressions";
import {StatementNode} from "../../nodes";
import {TypedIdentifier} from "../../types/_typed_identifier";
import {UnknownType, VoidType} from "../../types/basic";
import {BasicTypes} from "../basic_types";
import {StatementSyntax} from "../_statement_syntax";
import {SyntaxInput, syntaxIssue} from "../_syntax_input";
import {Identifier} from "../../1_lexer/tokens";
 
export class Parameter implements StatementSyntax {
  public runSyntax(node: StatementNode, input: SyntaxInput): void {
    const nameExpression = node.findFirstExpression(Expressions.FieldSub);
    if (nameExpression === undefined) {
      return;
    }
 
    let nameToken = nameExpression.getFirstToken();
    // FieldSub can include dashes and optional length, eg p-tcode or p_table(4).
    if (nameExpression.getChildren().length > 1) {
      const fullName = nameExpression.concatTokens().replace(/\(.+$/, "").replace(/\[\]$/, "");
      nameToken = new Identifier(nameToken.getStart(), fullName);
    }
 
    if (nameToken && nameToken.getStr().length > 8) {
      const message = "Parameter name too long, " + nameToken.getStr();
      input.issues.push(syntaxIssue(input, node.getFirstToken(), message));
      return;
    }
 
    if (node.findDirectTokenByText("RADIOBUTTON") && node.findDirectTokenByText("LENGTH")) {
      const message = "RADIOBUTTON and LENGTH not possible together";
      input.issues.push(syntaxIssue(input, node.getFirstToken(), message));
      return;
    }
 
    const bfound = new BasicTypes(input).parseType(node);
    if (bfound) {
      input.scope.addIdentifier(new TypedIdentifier(nameToken, input.filename, bfound));
    } else {
      input.scope.addIdentifier(new TypedIdentifier(nameToken, input.filename, new UnknownType("Parameter, fallback")));
    }
 
    const magicName = "%_" + nameToken.getStr() + "_%_app_%";
    const magicToken = new Identifier(nameToken.getStart(), magicName);
    input.scope.addIdentifier(new TypedIdentifier(magicToken, input.filename, VoidType.get("PARAMETER-MAGIC")));
  }
}