func TestGlobal(t *testing.T) {
golden := []struct {
s string
want string
}{
// i=0
{s: "foo", want: "@foo"},
// i=1
{s: "a b", want: `@a\20b`},
// i=2
{s: "$a", want: "@$a"},
// i=3
{s: "-a", want: "@-a"},
// i=4
{s: ".a", want: "@.a"},
// i=5
{s: "_a", want: "@_a"},
// i=6
{s: "#a", want: `@\23a`},
// i=7
{s: "a b#c", want: `@a\20b\23c`},
// i=8
{s: "2", want: "@2"},
// i=9
{s: "foo世bar", want: `@foo\E4\B8\96bar`},
}
for i, g := range golden {
got := enc.Global(g.s)
if got != g.want {
t.Errorf("i=%d: name mismatch; expected %q, got %q", i, g.want, got)
}
}
}
// String returns the string representation of the global variable declaration.
func (d *GlobalDecl) String() string {
immutableSpec := "global"
if d.Immutable() {
immutableSpec = "constant"
}
// External global variable declaration; e.g.
// @y = external global i32
if d.val == nil {
return fmt.Sprintf("%s = external %s %s", enc.Global(d.Name()), immutableSpec, d.Underlying())
}
// Global variable definition; e.g.
// @x = global i32 42
// @s = constant [13 x i8] c"hello world\0A\00"
return fmt.Sprintf("%s = %s %s %s", enc.Global(d.Name()), immutableSpec, d.Underlying(), d.Value().ValueString())
}
// String returns the string representation of the instruction.
func (inst *Call) String() string {
argsBuf := new(bytes.Buffer)
for i, arg := range inst.args {
if i > 0 {
argsBuf.WriteString(", ")
}
fmt.Fprintf(argsBuf, "%s %s", arg.Type(), arg.ValueString())
}
// TODO: Use inst.callee.ValueString() rather than enc.Global(inst.callee),
// once the type of callee is changed to NamedValue or *ir.Function.
return fmt.Sprintf("call %s %s(%s)", inst.result, enc.Global(inst.callee), argsBuf)
}
func BenchmarkGlobalReplace(b *testing.B) {
for i := 0; i < b.N; i++ {
enc.Global("$foo bar#baz")
}
}
// ValueString returns a string representation of the value.
func (d *GlobalDecl) ValueString() string {
return enc.Global(d.Name())
}
// ValueString returns a string representation of the value.
func (f *Function) ValueString() string {
return enc.Global(f.Name())
}