Gecko [ 167.86.127.34 ]

Name	Size	Permission
builtin	[ DIR ]	drwxr-xr-x
testdata	[ DIR ]	drwxr-xr-x
alg.go	16.28 KB	-rw-r--r--
align.go	9.85 KB	-rw-r--r--
bexport.go	4.41 KB	-rw-r--r--
bimport.go	667 B	-rw-r--r--
bitset.go	1.15 KB	-rw-r--r--
bootstrap.go	311 B	-rw-r--r--
builtin.go	16.41 KB	-rw-r--r--
builtin_test.go	622 B	-rw-r--r--
bv.go	5.5 KB	-rw-r--r--
class_string.go	712 B	-rw-r--r--
closure.go	15.57 KB	-rw-r--r--
const.go	27.21 KB	-rw-r--r--
constFold_test.go	322.99 KB	-rw-r--r--
dcl.go	28.37 KB	-rw-r--r--
dep_test.go	587 B	-rw-r--r--
dump.go	6.37 KB	-rw-r--r--
dwinl.go	10.07 KB	-rw-r--r--
esc.go	12.22 KB	-rw-r--r--
escape.go	37.37 KB	-rw-r--r--
export.go	5.33 KB	-rw-r--r--
fixedbugs_test.go	2.23 KB	-rw-r--r--
float_test.go	11.51 KB	-rw-r--r--
fmt.go	41.71 KB	-rw-r--r--
gen.go	2.33 KB	-rw-r--r--
global_test.go	2.57 KB	-rw-r--r--
go.go	7.4 KB	-rw-r--r--
gsubr.go	9.08 KB	-rw-r--r--
iexport.go	31.65 KB	-rw-r--r--
iface_test.go	1.92 KB	-rw-r--r--
iimport.go	22.79 KB	-rw-r--r--
init.go	3.29 KB	-rw-r--r--
initorder.go	9.84 KB	-rw-r--r--
inl.go	35.08 KB	-rw-r--r--
inl_test.go	6.64 KB	-rw-r--r--
lang_test.go	1.46 KB	-rw-r--r--
lex.go	5.96 KB	-rw-r--r--
lex_test.go	3.63 KB	-rw-r--r--
logic_test.go	11.08 KB	-rw-r--r--
main.go	43.75 KB	-rw-r--r--
mapfile_mmap.go	1.21 KB	-rw-r--r--
mapfile_read.go	485 B	-rw-r--r--
mkbuiltin.go	5.34 KB	-rw-r--r--
mpfloat.go	6.56 KB	-rw-r--r--
mpint.go	5.34 KB	-rw-r--r--
noder.go	37.65 KB	-rw-r--r--
obj.go	11.44 KB	-rw-r--r--
op_string.go	4.88 KB	-rw-r--r--
order.go	37.39 KB	-rw-r--r--
pgen.go	21.66 KB	-rw-r--r--
pgen_test.go	6.01 KB	-rw-r--r--
phi.go	14.72 KB	-rw-r--r--
plive.go	44.51 KB	-rw-r--r--
pprof.go	274 B	-rw-r--r--
racewalk.go	2.61 KB	-rw-r--r--
range.go	13.72 KB	-rw-r--r--
reflect.go	48.07 KB	-rw-r--r--
reproduciblebuilds_test.go	1.46 KB	-rw-r--r--
scc.go	4.18 KB	-rw-r--r--
scope.go	2.8 KB	-rw-r--r--
scope_test.go	13.67 KB	-rw-r--r--
select.go	9.16 KB	-rw-r--r--
shift_test.go	21.46 KB	-rw-r--r--
sinit.go	26.75 KB	-rw-r--r--
sizeof_test.go	844 B	-rw-r--r--
ssa.go	224.4 KB	-rw-r--r--
ssa_test.go	5.1 KB	-rw-r--r--
subr.go	43.73 KB	-rw-r--r--
swt.go	18.51 KB	-rw-r--r--
syntax.go	36.41 KB	-rw-r--r--
timings.go	5.75 KB	-rw-r--r--
trace.go	494 B	-rw-r--r--
truncconst_test.go	1.76 KB	-rw-r--r--
typecheck.go	87.11 KB	-rw-r--r--
types.go	1.19 KB	-rw-r--r--
types_acc.go	491 B	-rw-r--r--
universe.go	10.88 KB	-rw-r--r--
unsafe.go	1.8 KB	-rw-r--r--
util.go	2.18 KB	-rw-r--r--
walk.go	101.89 KB	-rw-r--r--
zerorange_test.go	1.89 KB	-rw-r--r--

Code Editor : pgen_test.go

// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package gc

import (
	"cmd/compile/internal/types"
	"reflect"
	"sort"
	"testing"
)

func typeWithoutPointers() *types.Type {
	t := types.New(TSTRUCT)
	f := &types.Field{Type: types.New(TINT)}
	t.SetFields([]*types.Field{f})
	return t
}

func typeWithPointers() *types.Type {
	t := types.New(TSTRUCT)
	f := &types.Field{Type: types.New(TPTR)}
	t.SetFields([]*types.Field{f})
	return t
}

func markUsed(n *Node) *Node {
	n.Name.SetUsed(true)
	return n
}

func markNeedZero(n *Node) *Node {
	n.Name.SetNeedzero(true)
	return n
}

func nodeWithClass(n Node, c Class) *Node {
	n.SetClass(c)
	n.Name = new(Name)
	return &n
}

// Test all code paths for cmpstackvarlt.
func TestCmpstackvar(t *testing.T) {
	testdata := []struct {
		a, b *Node
		lt   bool
	}{
		{
			nodeWithClass(Node{}, PAUTO),
			nodeWithClass(Node{}, PFUNC),
			false,
		},
		{
			nodeWithClass(Node{}, PFUNC),
			nodeWithClass(Node{}, PAUTO),
			true,
		},
		{
			nodeWithClass(Node{Xoffset: 0}, PFUNC),
			nodeWithClass(Node{Xoffset: 10}, PFUNC),
			true,
		},
		{
			nodeWithClass(Node{Xoffset: 20}, PFUNC),
			nodeWithClass(Node{Xoffset: 10}, PFUNC),
			false,
		},
		{
			nodeWithClass(Node{Xoffset: 10}, PFUNC),
			nodeWithClass(Node{Xoffset: 10}, PFUNC),
			false,
		},
		{
			nodeWithClass(Node{Xoffset: 10}, PPARAM),
			nodeWithClass(Node{Xoffset: 20}, PPARAMOUT),
			true,
		},
		{
			nodeWithClass(Node{Xoffset: 10}, PPARAMOUT),
			nodeWithClass(Node{Xoffset: 20}, PPARAM),
			true,
		},
		{
			markUsed(nodeWithClass(Node{}, PAUTO)),
			nodeWithClass(Node{}, PAUTO),
			true,
		},
		{
			nodeWithClass(Node{}, PAUTO),
			markUsed(nodeWithClass(Node{}, PAUTO)),
			false,
		},
		{
			nodeWithClass(Node{Type: typeWithoutPointers()}, PAUTO),
			nodeWithClass(Node{Type: typeWithPointers()}, PAUTO),
			false,
		},
		{
			nodeWithClass(Node{Type: typeWithPointers()}, PAUTO),
			nodeWithClass(Node{Type: typeWithoutPointers()}, PAUTO),
			true,
		},
		{
			markNeedZero(nodeWithClass(Node{Type: &types.Type{}}, PAUTO)),
			nodeWithClass(Node{Type: &types.Type{}, Name: &Name{}}, PAUTO),
			true,
		},
		{
			nodeWithClass(Node{Type: &types.Type{}, Name: &Name{}}, PAUTO),
			markNeedZero(nodeWithClass(Node{Type: &types.Type{}}, PAUTO)),
			false,
		},
		{
			nodeWithClass(Node{Type: &types.Type{Width: 1}, Name: &Name{}}, PAUTO),
			nodeWithClass(Node{Type: &types.Type{Width: 2}, Name: &Name{}}, PAUTO),
			false,
		},
		{
			nodeWithClass(Node{Type: &types.Type{Width: 2}, Name: &Name{}}, PAUTO),
			nodeWithClass(Node{Type: &types.Type{Width: 1}, Name: &Name{}}, PAUTO),
			true,
		},
		{
			nodeWithClass(Node{Type: &types.Type{}, Sym: &types.Sym{Name: "abc"}}, PAUTO),
			nodeWithClass(Node{Type: &types.Type{}, Sym: &types.Sym{Name: "xyz"}}, PAUTO),
			true,
		},
		{
			nodeWithClass(Node{Type: &types.Type{}, Sym: &types.Sym{Name: "abc"}}, PAUTO),
			nodeWithClass(Node{Type: &types.Type{}, Sym: &types.Sym{Name: "abc"}}, PAUTO),
			false,
		},
		{
			nodeWithClass(Node{Type: &types.Type{}, Sym: &types.Sym{Name: "xyz"}}, PAUTO),
			nodeWithClass(Node{Type: &types.Type{}, Sym: &types.Sym{Name: "abc"}}, PAUTO),
			false,
		},
	}
	for _, d := range testdata {
		got := cmpstackvarlt(d.a, d.b)
		if got != d.lt {
			t.Errorf("want %#v < %#v", d.a, d.b)
		}
		// If we expect a < b to be true, check that b < a is false.
		if d.lt && cmpstackvarlt(d.b, d.a) {
			t.Errorf("unexpected %#v < %#v", d.b, d.a)
		}
	}
}

func TestStackvarSort(t *testing.T) {
	inp := []*Node{
		nodeWithClass(Node{Type: &types.Type{}, Sym: &types.Sym{}}, PFUNC),
		nodeWithClass(Node{Type: &types.Type{}, Sym: &types.Sym{}}, PAUTO),
		nodeWithClass(Node{Xoffset: 0, Type: &types.Type{}, Sym: &types.Sym{}}, PFUNC),
		nodeWithClass(Node{Xoffset: 10, Type: &types.Type{}, Sym: &types.Sym{}}, PFUNC),
		nodeWithClass(Node{Xoffset: 20, Type: &types.Type{}, Sym: &types.Sym{}}, PFUNC),
		markUsed(nodeWithClass(Node{Type: &types.Type{}, Sym: &types.Sym{}}, PAUTO)),
		nodeWithClass(Node{Type: typeWithoutPointers(), Sym: &types.Sym{}}, PAUTO),
		nodeWithClass(Node{Type: &types.Type{}, Sym: &types.Sym{}}, PAUTO),
		markNeedZero(nodeWithClass(Node{Type: &types.Type{}, Sym: &types.Sym{}}, PAUTO)),
		nodeWithClass(Node{Type: &types.Type{Width: 1}, Sym: &types.Sym{}}, PAUTO),
		nodeWithClass(Node{Type: &types.Type{Width: 2}, Sym: &types.Sym{}}, PAUTO),
		nodeWithClass(Node{Type: &types.Type{}, Sym: &types.Sym{Name: "abc"}}, PAUTO),
		nodeWithClass(Node{Type: &types.Type{}, Sym: &types.Sym{Name: "xyz"}}, PAUTO),
	}
	want := []*Node{
		nodeWithClass(Node{Type: &types.Type{}, Sym: &types.Sym{}}, PFUNC),
		nodeWithClass(Node{Xoffset: 0, Type: &types.Type{}, Sym: &types.Sym{}}, PFUNC),
		nodeWithClass(Node{Xoffset: 10, Type: &types.Type{}, Sym: &types.Sym{}}, PFUNC),
		nodeWithClass(Node{Xoffset: 20, Type: &types.Type{}, Sym: &types.Sym{}}, PFUNC),
		markUsed(nodeWithClass(Node{Type: &types.Type{}, Sym: &types.Sym{}}, PAUTO)),
		markNeedZero(nodeWithClass(Node{Type: &types.Type{}, Sym: &types.Sym{}}, PAUTO)),
		nodeWithClass(Node{Type: &types.Type{Width: 2}, Sym: &types.Sym{}}, PAUTO),
		nodeWithClass(Node{Type: &types.Type{Width: 1}, Sym: &types.Sym{}}, PAUTO),
		nodeWithClass(Node{Type: &types.Type{}, Sym: &types.Sym{}}, PAUTO),
		nodeWithClass(Node{Type: &types.Type{}, Sym: &types.Sym{}}, PAUTO),
		nodeWithClass(Node{Type: &types.Type{}, Sym: &types.Sym{Name: "abc"}}, PAUTO),
		nodeWithClass(Node{Type: &types.Type{}, Sym: &types.Sym{Name: "xyz"}}, PAUTO),
		nodeWithClass(Node{Type: typeWithoutPointers(), Sym: &types.Sym{}}, PAUTO),
	}
	// haspointers updates Type.Haspointers as a side effect, so
	// exercise this function on all inputs so that reflect.DeepEqual
	// doesn't produce false positives.
	for i := range want {
		types.Haspointers(want[i].Type)
		types.Haspointers(inp[i].Type)
	}

sort.Sort(byStackVar(inp))
	if !reflect.DeepEqual(want, inp) {
		t.Error("sort failed")
		for i := range inp {
			g := inp[i]
			w := want[i]
			eq := reflect.DeepEqual(w, g)
			if !eq {
				t.Log(i, w, g)
			}
		}
	}
}

${this.title}

Code Editor : pgen_test.go