module clox.emitter;

import core.stdc.stdio;

import clox.chunk;
import clox.compiler;
import clox.value;

struct Emitter{
	Compiler* compiler;
	private uint line = 1;
	uint setLine(uint line) => this.line = line;
	void initialise(Compiler* compiler){
		this.compiler = compiler;
	}
	void emit(ubyte[] bytes...){
		foreach(b; bytes)
			compiler.currentChunk.write(b, compiler.parser.previous.line);
	}
	void emitReturn(){
		emit(OpCode.Return);
	}
	void emitConstant(Value value){
		emit(OpCode.Constant, cast(ubyte)makeConstant(value));
	}
	uint makeConstant(Value value){
		uint constant = compiler.currentChunk.addConstant(value);
		return constant;
	}
}