*
     * @param in
     *            入力ファイル。{@literal null}であってはいけません
     * @param inputEncoding
     *            入力ファイルのエンコーディング。{@literal null}や空文字列であってはいけません
     * @param out
     *            出力ファイル。{@literal null}であってはいけません
     * @param outputEncoding
     *            出力ファイルのエンコーディング。{@literal null}や空文字列であってはいけません
     * @return コピーした文字数
     */

                              "tag": "istio.canonical_revision",
                              "literal": {
                                "value": "latest"
                              }
                            },
                            {
                              "tag": "istio.canonical_service",
                              "literal": {
                                "value": "httpbin-istio-waypoint"

The check performed by f may fail in which case x.mode == invalid, and
related error messages will have been issued by f.

If a hint argument is present, it is the composite literal element type
of an outer composite literal; it is used to type-check composite literal
elements that have no explicit type specification in the source
(e.g.: []T{{...}, {...}}, the hint is the type T in this case).

					check.funcBody(decl, "<function literal>", sig, e.Body, iota)
				}).describef(e, "func literal")
			}
			x.mode = value
			x.typ = sig
		} else {
			check.errorf(e, InvalidSyntaxTree, "invalid function literal %v", e)
			goto Error
		}

	case *ast.CompositeLit:
		var typ, base Type

		switch {
		case e.Type != nil:
			// composite literal type present - use it

		re1.Rune[0] = r
		re1.Flags = flags
		return true
	}

	p.stack = p.stack[:n-1]
	p.reuse(re1)
	return false // did not push r
}

// literal pushes a literal regexp for the rune r on the stack.
func (p *parser) literal(r rune) {
	re := p.newRegexp(OpLiteral)
	re.Flags = p.flags
	if p.flags&FoldCase != 0 {
		r = minFoldRune(r)
	}
	re.Rune0[0] = r
	re.Rune = re.Rune0[:1]

     * {@link Collection}が{@literal null}でも要素が無いわけでもない場合は{@literal true}を返します。
     *
     * @param collection
     *            コレクション
     * @return コレクションが{@literal null}でも要素が無いわけでもない場合は{@literal true}
     */
    public static boolean isNotEmpty(final Collection<?> collection) {
        return !isEmpty(collection);
    }

    /**
     * {@link Map}が{@literal null}または要素が無い場合は{@literal true}を返します。
     *

        final Object literal;

        LiteralValue(Object literal) {
            this.literal = literal;
        }

        @Override
        public boolean isBooleanType() {
            return literal instanceof Boolean;
        }

        @Override
        public String with(Syntax syntax) {
            return literal.toString();
        }
    }

                              "tag": "istio.canonical_revision",
                              "literal": {
                                "value": "latest"
                              }
                            },
                            {
                              "tag": "istio.canonical_service",
                              "literal": {
                                "value": "namespace-istio-waypoint"

                              "tag": "istio.canonical_revision",
                              "literal": {
                                "value": "latest"
                              }
                            },
                            {
                              "tag": "istio.canonical_service",
                              "literal": {
                                "value": "namespace-istio-waypoint"

			// determine if '{' belongs to a composite literal or a block statement
			complit_ok := false
			switch t.(type) {
			case *Name, *SelectorExpr:
				if p.xnest >= 0 {
					// x is possibly a composite literal type
					complit_ok = true
				}
			case *IndexExpr:
				if p.xnest >= 0 && !isValue(t) {
					// x is possibly a composite literal type
					complit_ok = true
				}