47 lines
914 B
Go
47 lines
914 B
Go
// Copyright 2017 The go-interpreter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package wasm
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import (
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"encoding/binary"
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"io"
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)
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func readBytes(r io.Reader, n int) ([]byte, error) {
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bytes := make([]byte, n)
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_, err := io.ReadFull(r, bytes)
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if err != nil {
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return bytes, err
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}
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return bytes, nil
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}
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func readString(r io.Reader, n int) (string, error) {
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bytes, err := readBytes(r, n)
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if err != nil {
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return "", err
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}
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return string(bytes), nil
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}
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func readU32(r io.Reader) (uint32, error) {
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var buf [4]byte
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_, err := io.ReadFull(r, buf[:])
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if err != nil {
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return 0, err
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}
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return binary.LittleEndian.Uint32(buf[:]), nil
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}
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func readU64(r io.Reader) (uint64, error) {
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var buf [8]byte
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_, err := io.ReadFull(r, buf[:])
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if err != nil {
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return 0, err
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}
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return binary.LittleEndian.Uint64(buf[:]), nil
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}
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