c64-assembler 0.2.0

Commodore 64 assembler, outputs directly to .PRG or Dasm source code
Documentation 
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//! Validate the consistency of an application.
//!
//! ```
//! use c64_assembler_macro::application;
//! use c64_assembler::validator::Validator;
//!
//! let application = application!(
//!     name="Set black border"
//!     include_vic2_defines
//!     module!(
//!         name="main"
//!         instructions!(
//!         include_basic_header
//!         main_entry_point:
//!             "Load black color into accumulator"
//!             lda #$00
//!             sta VIC2_BORDER_COLOR
//!             rts
//!         )
//!     )
//! ).unwrap();
//! assert!(application.validate().is_ok());
//! ```
use address_names_exists::validate_address_names_exists;
use address_names_unique::validate_address_names_unique;

use crate::Application;

mod address_names_exists;
mod address_names_unique;
mod relative_addressing;

pub trait Validator {
    fn validate(&self) -> AssemblerResult<()>;
}

pub type AssemblerResult<T> = Result<T, Error>;

#[derive(Debug)]
pub enum Error {
    /// An address is reference by name, but the name isn't known.
    AddressNameUnknown(String),
    /// An address with the same name has been defined multiple times.
    AddressNameNotUnique(String),
    /// Assembler did take a branch that it could not recover from.
    InternalCompilerError,
}

impl Validator for Application {
    fn validate(&self) -> AssemblerResult<()> {
        validate_address_names_exists(self)?;
        validate_address_names_unique(self)?;
        Ok(())
    }
}