// +build ignore

package main

import (
	. "github.com/mmcloughlin/avo/build"
	. "github.com/mmcloughlin/avo/operand"
)

func main() {
	Package("github.com/mmcloughlin/avo/examples/returns")

	// Multiple unnamed return values.
	TEXT("Interval", "func(start, size uint64) (uint64, uint64)")
	start := Load(Param("start"), GP64v())
	size := Load(Param("size"), GP64v())
	end := size
	ADDQ(start, end)
	Store(start, ReturnIndex(0))
	Store(end, ReturnIndex(1))
	RET()

	// Butterfly demonstrates multiple named return values.
	TEXT("Butterfly", "func(x0, x1 float64) (y0, y1 float64)")
	x0 := Load(Param("x0"), Xv())
	x1 := Load(Param("x1"), Xv())
	y0, y1 := Xv(), Xv()
	MOVSD(x0, y0)
	ADDSD(x1, y0)
	MOVSD(x0, y1)
	SUBSD(x1, y1)
	Store(y0, Return("y0"))
	Store(y1, Return("y1"))
	RET()

	// Septuple returns an array of seven of the given byte.
	TEXT("Septuple", "func(byte) [7]byte")
	b := Load(ParamIndex(0), GP8v())
	for i := 0; i < 7; i++ {
		Store(b, ReturnIndex(0).Index(i))
	}
	RET()

	// CriticalLine returns the complex value 0.5 + it on Riemann's critical line.
	TEXT("CriticalLine", "func(t float64) complex128")
	t := Load(Param("t"), Xv())
	half := Xv()
	MOVSD(ConstData("half", F64(0.5)), half)
	Store(half, ReturnIndex(0).Real())
	Store(t, ReturnIndex(0).Imag())
	RET()

	// NewStruct initializes a Struct value.
	TEXT("NewStruct", "func(w uint16, p [2]float64, q uint64) Struct")
	w := Load(Param("w"), GP16v())
	x := Load(Param("p").Index(0), Xv())
	y := Load(Param("p").Index(1), Xv())
	q := Load(Param("q"), GP64v())
	Store(w, ReturnIndex(0).Field("Word"))
	Store(x, ReturnIndex(0).Field("Point").Index(0))
	Store(y, ReturnIndex(0).Field("Point").Index(1))
	Store(q, ReturnIndex(0).Field("Quad"))
	RET()

	Generate()
}