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mod layout;
mod writer;

pub use writer::Writer;

use spirv::*;

bitflags::bitflags! {
    pub struct WriterFlags: u32 {
        const NONE = 0x0;
        const DEBUG = 0x1;
    }
}

struct PhysicalLayout {
    magic_number: Word,
    version: Word,
    generator: Word,
    bound: Word,
    instruction_schema: Word,
}

#[derive(Default)]
pub(crate) struct LogicalLayout {
    capabilities: Vec<Word>,
    extensions: Vec<Word>,
    ext_inst_imports: Vec<Word>,
    memory_model: Vec<Word>,
    entry_points: Vec<Word>,
    execution_modes: Vec<Word>,
    debugs: Vec<Word>,
    annotations: Vec<Word>,
    declarations: Vec<Word>,
    function_declarations: Vec<Word>,
    function_definitions: Vec<Word>,
}

struct Instruction {
    op: Op,
    wc: u32,
    type_id: Option<Word>,
    result_id: Option<Word>,
    operands: Vec<Word>,
}