Method parseIdentifierExpression

pkg/dsl/parser/parser.go:733–757

parseIdentifier parses an identifier expression that may consist of one or more dot-separated identifiers, such as "x", "foo.bar", or "a.b.c.d". It constructs a new Identifier expression with the first token as the prefix and subsequent tokens as identifiers, and returns the resulting expression and

()

// It constructs a new Identifier expression with the first token as the prefix and subsequent
// tokens as identifiers, and returns the resulting expression and any error encountered.
func (p *Parser) parseIdentifierExpression() (ast.Expression, error) {
	// Ensure the current token is a valid identifier before proceeding.
	if !p.currentTokenIs(token.IDENT) {
		p.currentError(token.IDENT)
		return nil, p.Error()
	}

	// Create a new Identifier expression with the first token as the prefix.
	ident := &ast.Identifier{Idents: []token.Token{p.currentToken}}

	// If the next token is a dot, consume it and continue parsing the next identifier.
	for p.peekTokenIs(token.DOT) {
		p.next() // Consume the dot token

		// Check if the next token after the dot is a valid identifier
		if !p.expectAndNext(token.IDENT) {
			return nil, p.Error()
		}

		ident.Idents = append(ident.Idents, p.currentToken)
	}

	// Return the resulting Identifier expression.
	return ident, nil
}

// call_func(variable1, variable2)
func (p *Parser) parseCallExpression() (ast.Expression, error) {