abistr := p.get(scanner.Ident).String()
		if !p.allowABI {
			if issueError {
				p.errorf("ABI selector only permitted when compiling runtime, reference was to %q", name)
			}
		} else {
			theabi, valid := obj.ParseABI(abistr)
			if !valid {
				if issueError {
					p.errorf("malformed ABI selector %q in reference to %q",
						abistr, name)
				}
			} else {
				abi = theabi
			}
		}
	}

</p>

<pre class="ebnf">
PrimaryExpr =
	Operand |
	Conversion |
	MethodExpr |
	PrimaryExpr Selector |
	PrimaryExpr Index |
	PrimaryExpr Slice |
	PrimaryExpr TypeAssertion |
	PrimaryExpr Arguments .

Selector       = "." identifier .
Index          = "[" Expression [ "," ] "]" .
Slice          = "[" [ Expression ] ":" [ Expression ] "]" |

pkg reflect, const Ptr = 22
pkg reflect, const RecvDir = 1
pkg reflect, const SelectDefault = 3
pkg reflect, const SelectDefault SelectDir
pkg reflect, const SelectRecv = 2
pkg reflect, const SelectRecv SelectDir
pkg reflect, const SelectSend = 1
pkg reflect, const SelectSend SelectDir
pkg reflect, const SendDir = 2
pkg reflect, const Slice = 23
pkg reflect, const String = 24
pkg reflect, const Struct = 25

		{"TEXT", "$:0:(SB, 0, $1", "expected '(', found 0"},          // Issue 12468.
		{"TEXT", "@B(SB),0,$0", "expected '(', found B"},             // Issue 23580.
		{"TEXT", "foo<ABIInternal>(SB),0", "ABI selector only permitted when compiling runtime, reference was to \"foo\""},
		{"FUNCDATA", "", "expect two operands for FUNCDATA"},
		{"FUNCDATA", "(SB ", "expect two operands for FUNCDATA"},
		{"DATA", "", "expect two operands for DATA"},

</p>

<pre class="ebnf">
PrimaryExpr =
	Operand |
	Conversion |
	MethodExpr |
	PrimaryExpr Selector |
	PrimaryExpr Index |
	PrimaryExpr Slice |
	PrimaryExpr TypeAssertion |
	PrimaryExpr Arguments .

Selector       = "." identifier .
Index          = "[" Expression "]" .
Slice          = "[" [ Expression ] ":" [ Expression ] "]" |

	{"[X0,X1,X2,X3]", "register list: expected '-' after `[X0`, found ','"},
	{"$foo<ABI0>", "ABI selector only permitted when compiling runtime, reference was to \"foo\""},
}

var amd64BadOperandRuntimeTests = []badOperandTest{
	{"$foo<bletch>", "malformed ABI selector \"bletch\" in reference to \"foo\""},
}

var x86OperandTests = []operandTest{

			expr = &ast.CallExpr{Fun: expr}
		}
	case ctxSelector:
		if r.Name.Kind == "var" {
			expr = &ast.StarExpr{Star: (*r.Expr).Pos(), X: expr}
		} else {
			error_(r.Pos(), "only C variables allowed in selector expression %s", fixGo(r.Name.Go))
		}
	case ctxType:
		if r.Name.Kind != "type" {
			error_(r.Pos(), "expression C.%s used as type", fixGo(r.Name.Go))
		} else if r.Name.Type == nil {

pkg unicode, var Ugaritic *RangeTable
pkg unicode, var Unified_Ideograph *RangeTable
pkg unicode, var Upper *RangeTable
pkg unicode, var Vai *RangeTable
pkg unicode, var Variation_Selector *RangeTable
pkg unicode, var White_Space *RangeTable
pkg unicode, var Yi *RangeTable
pkg unicode, var Z *RangeTable
pkg unicode, var Zl *RangeTable
pkg unicode, var Zp *RangeTable