Simplified file structure

src/build/core/UsesRegister.go

@@ -1,40 +0,0 @@
-package core
-
-import (
-	"git.akyoto.dev/cli/q/src/build/ast"
-	"git.akyoto.dev/cli/q/src/build/cpu"
-	"git.akyoto.dev/cli/q/src/build/expression"
-)
-
-// UsesRegister returns true if evaluating the expression would write or read the given register.
-func (f *Function) UsesRegister(expr *expression.Expression, register cpu.Register) bool {
-	if expr.IsLeaf() {
-		return false
-	}
-
-	if ast.IsFunctionCall(expr) {
-		if register == f.CPU.Output[0] {
-			return true
-		}
-
-		for i, parameter := range expr.Children[1:] {
-			if register == f.CPU.Input[i] {
-				return true
-			}
-
-			if f.UsesRegister(parameter, register) {
-				return true
-			}
-		}
-
-		return false
-	}
-
-	for _, child := range expr.Children {
-		if f.UsesRegister(child, register) {
-			return true
-		}
-	}
-
-	return false
-}