Method parseVarsBlock

packages/core/src/compiler/parser.ts:321–356

(blockToken: Token, position: SourcePosition)

  }

  private parseVarsBlock(blockToken: Token, position: SourcePosition): VarsBlock {
    const raw = blockToken.value;
    if (!raw.startsWith("{") || !raw.endsWith("}")) {
      throw new ParserError("Malformed vars block", blockToken.position);
    }

    const inner = raw.slice(1, raw.length - 1);
    if (inner.trim().length === 0) {
      return {
        type: "VarsBlock",
        declarations: [],
        position,
      };
    }

    const blockTokens = tokenize(inner);
    const nestedParser = new Parser(blockTokens);
    const declarations = nestedParser.parseVariableDeclarations();

    // Build symbol table for validation
    for (const declaration of declarations) {
      if (this.symbolTable.has(declaration.name)) {
        throw new ParserError(
          `Variable '${declaration.name}' is already declared`,
          declaration.position
        );
      }
      this.symbolTable.set(declaration.name, declaration.value);
    }

    return {
      type: "VarsBlock",
      declarations,
      position,
    };
  }

  private parseVariableDeclarations(): VariableDeclaration[] {
    const declarations: VariableDeclaration[] = [];