{"(gc))", false, fmt.Errorf("parsing //go:build line: unexpected )")},
}

func TestBuildParser(t *testing.T) {
	for _, tt := range buildParserTests {
		matched, err := matchexpr(tt.x)
		if matched != tt.matched || !reflect.DeepEqual(err, tt.err) {
			t.Errorf("matchexpr(%q) = %v, %v; want %v, %v", tt.x, matched, err, tt.matched, tt.err)
		}
	}

		{tok: "!", prec: 3, prefix: (*exprParser).not},
		{tok: "(", prec: 3, prefix: (*exprParser).paren},
		{tok: ")"},
	}
}

// matchexpr parses and evaluates the //go:build expression x.
func matchexpr(x string) (matched bool, err error) {
	defer func() {
		if e := recover(); e != nil {
			matched = false
			err = fmt.Errorf("parsing //go:build line: %v", e)
		}
	}()

            ? CodeBlock.of("receiverClass")
            : CodeBlock.of("arg$L", paramIndex);

        int childArgCount = paramIndex + 1;
        TypeName entryChildType = TypeUtils.typeName(entry.type);
        CodeBlock matchExpr = entry.kind == RECEIVER_AS_CLASS ?
            CodeBlock.of("isStatic && $T.class.isAssignableFrom($L)", entryChildType.box(), argExpr) :
            entry.kind == RECEIVER ?

        CodeBlock matchExpr = entry.kind == RECEIVER_AS_CLASS ?
            CodeBlock.of("$L.equals($T.class)", argExpr, entryChildType) :
            // Vararg fits here, too:
            CodeBlock.of("$1L == null || $1L instanceof $2T", argExpr, entryChildType.box());
        result.beginControlFlow("if ($L)", matchExpr);
        boolean shouldPopParameter = false;