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        <h1><a href="index.html">All files</a> sync-inflate.js</h1>
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                <span class="strong">75.31% </span>
                <span class="quiet">Statements</span>
                <span class='fraction'>61/81</span>
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            <div class='fl pad1y space-right2'>
                <span class="strong">62% </span>
                <span class="quiet">Branches</span>
                <span class='fraction'>31/50</span>
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            <div class='fl pad1y space-right2'>
                <span class="strong">87.5% </span>
                <span class="quiet">Functions</span>
                <span class='fraction'>7/8</span>
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            <div class='fl pad1y space-right2'>
                <span class="strong">75.31% </span>
                <span class="quiet">Lines</span>
                <span class='fraction'>61/81</span>
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<span class="cline-any cline-neutral">&nbsp;</span>
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<span class="cline-any cline-neutral">&nbsp;</span></td><td class="text"><pre class="prettyprint lang-js">"use strict";
&nbsp;
let assert = require("assert").ok;
let zlib = require("zlib");
let util = require("util");
&nbsp;
let kMaxLength = require("buffer").kMaxLength;
&nbsp;
function Inflate(opts) {
  <span class="missing-if-branch" title="if path not taken" >I</span>if (!(this instanceof Inflate)) {
<span class="cstat-no" title="statement not covered" >    return new Inflate(opts);</span>
  }
&nbsp;
  if (opts &amp;&amp; opts.chunkSize &lt; zlib.Z_MIN_CHUNK) {
    opts.chunkSize = zlib.Z_MIN_CHUNK;
  }
&nbsp;
  zlib.Inflate.call(this, opts);
&nbsp;
  // Node 8 --&gt; 9 compatibility check
  this._offset = this._offset === undefined ? this._outOffset : <span class="branch-1 cbranch-no" title="branch not covered" >this._offset;</span>
  this._buffer = this._buffer || this._outBuffer;
&nbsp;
  <span class="missing-if-branch" title="else path not taken" >E</span>if (opts &amp;&amp; opts.maxLength != null) {
    this._maxLength = opts.maxLength;
  }
}
&nbsp;
function <span class="fstat-no" title="function not covered" >createInflate(</span>opts) {
<span class="cstat-no" title="statement not covered" >  return new Inflate(opts);</span>
}
&nbsp;
function _close(engine, callback) {
  <span class="missing-if-branch" title="if path not taken" >I</span>if (callback) {
<span class="cstat-no" title="statement not covered" >    process.nextTick(callback);</span>
  }
&nbsp;
  // Caller may invoke .close after a zlib error (which will null _handle).
  <span class="missing-if-branch" title="if path not taken" >I</span>if (!engine._handle) {
<span class="cstat-no" title="statement not covered" >    return;</span>
  }
&nbsp;
  engine._handle.close();
  engine._handle = null;
}
&nbsp;
Inflate.prototype._processChunk = function (chunk, flushFlag, asyncCb) {
  <span class="missing-if-branch" title="if path not taken" >I</span>if (typeof asyncCb === "function") {
<span class="cstat-no" title="statement not covered" >    return zlib.Inflate._processChunk.call(this, chunk, flushFlag, asyncCb);</span>
  }
&nbsp;
  let self = this;
&nbsp;
  let availInBefore = chunk &amp;&amp; chunk.length;
  let availOutBefore = this._chunkSize - this._offset;
  let leftToInflate = this._maxLength;
  let inOff = 0;
&nbsp;
  let buffers = [];
  let nread = 0;
&nbsp;
  let error;
  this.on("error", function (err) {
    error = err;
  });
&nbsp;
  function handleChunk(availInAfter, availOutAfter) {
    <span class="missing-if-branch" title="if path not taken" >I</span>if (self._hadError) {
<span class="cstat-no" title="statement not covered" >      return;</span>
    }
&nbsp;
    let have = availOutBefore - availOutAfter;
    assert(have &gt;= 0, "have should not go down");
&nbsp;
    <span class="missing-if-branch" title="else path not taken" >E</span>if (have &gt; 0) {
      let out = self._buffer.slice(self._offset, self._offset + have);
      self._offset += have;
&nbsp;
      if (out.length &gt; leftToInflate) {
        out = out.slice(0, leftToInflate);
      }
&nbsp;
      buffers.push(out);
      nread += out.length;
      leftToInflate -= out.length;
&nbsp;
      <span class="missing-if-branch" title="else path not taken" >E</span>if (leftToInflate === 0) {
        return false;
      }
    }
&nbsp;
<span class="cstat-no" title="statement not covered" >    if (availOutAfter === 0 || self._offset &gt;= self._chunkSize) {</span>
<span class="cstat-no" title="statement not covered" >      availOutBefore = self._chunkSize;</span>
<span class="cstat-no" title="statement not covered" >      self._offset = 0;</span>
<span class="cstat-no" title="statement not covered" >      self._buffer = Buffer.allocUnsafe(self._chunkSize);</span>
    }
&nbsp;
<span class="cstat-no" title="statement not covered" >    if (availOutAfter === 0) {</span>
<span class="cstat-no" title="statement not covered" >      inOff += availInBefore - availInAfter;</span>
<span class="cstat-no" title="statement not covered" >      availInBefore = availInAfter;</span>
&nbsp;
<span class="cstat-no" title="statement not covered" >      return true;</span>
    }
&nbsp;
<span class="cstat-no" title="statement not covered" >    return false;</span>
  }
&nbsp;
  assert(this._handle, "zlib binding closed");
  let res;
  do {
    res = this._handle.writeSync(
      flushFlag,
      chunk, // in
      inOff, // in_off
      availInBefore, // in_len
      this._buffer, // out
      this._offset, //out_off
      availOutBefore
    ); // out_len
    // Node 8 --&gt; 9 compatibility check
    res = res || this._writeState;
  } while (!this._hadError &amp;&amp; handleChunk(res[0], res[1]));
&nbsp;
  if (this._hadError) {
    throw error;
  }
&nbsp;
  <span class="missing-if-branch" title="if path not taken" >I</span>if (nread &gt;= kMaxLength) {
<span class="cstat-no" title="statement not covered" >    _close(this);</span>
<span class="cstat-no" title="statement not covered" >    throw new RangeError(</span>
      "Cannot create final Buffer. It would be larger than 0x" +
        kMaxLength.toString(16) +
        " bytes"
    );
  }
&nbsp;
  let buf = Buffer.concat(buffers, nread);
  _close(this);
&nbsp;
  return buf;
};
&nbsp;
util.inherits(Inflate, zlib.Inflate);
&nbsp;
function zlibBufferSync(engine, buffer) {
  <span class="missing-if-branch" title="if path not taken" >I</span>if (typeof buffer === "string") {
<span class="cstat-no" title="statement not covered" >    buffer = Buffer.from(buffer);</span>
  }
  <span class="missing-if-branch" title="if path not taken" >I</span>if (!(buffer instanceof Buffer)) {
<span class="cstat-no" title="statement not covered" >    throw new TypeError("Not a string or buffer");</span>
  }
&nbsp;
  let flushFlag = engine._finishFlushFlag;
  <span class="missing-if-branch" title="if path not taken" >I</span>if (flushFlag == null) {
<span class="cstat-no" title="statement not covered" >    flushFlag = zlib.Z_FINISH;</span>
  }
&nbsp;
  return engine._processChunk(buffer, flushFlag);
}
&nbsp;
function inflateSync(buffer, opts) {
  return zlibBufferSync(new Inflate(opts), buffer);
}
&nbsp;
module.exports = exports = inflateSync;
exports.Inflate = Inflate;
exports.createInflate = createInflate;
exports.inflateSync = inflateSync;
&nbsp;</pre></td></tr></table></pre>

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