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9c110d8027
Previously, calling `vm.createContext(o)` repeatedly on the same `o` would cause new C++ `ContextifyContext`s to be created and stored on `o`, while the previous resident went off into leaked-memory limbo. Now, repeatedly trying to contextify a sandbox will do nothing after the first time. To detect this, an independently-useful `vm.isContext(sandbox)` export was added.
71 lines
2.6 KiB
JavaScript
71 lines
2.6 KiB
JavaScript
// Copyright Joyent, Inc. and other Node contributors.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to permit
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// persons to whom the Software is furnished to do so, subject to the
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// following conditions:
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//
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
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// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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// USE OR OTHER DEALINGS IN THE SOFTWARE.
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var binding = process.binding('contextify');
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var Script = binding.ContextifyScript;
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var util = require('util');
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// The binding provides a few useful primitives:
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// - ContextifyScript(code, [filename]), with methods:
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// - runInThisContext()
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// - runInContext(sandbox, [timeout])
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// - makeContext(sandbox)
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// - isContext(sandbox)
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// From this we build the entire documented API.
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Script.prototype.runInNewContext = function(initSandbox, timeout, disp) {
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var context = exports.createContext(initSandbox);
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return this.runInContext(context, timeout, disp);
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};
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exports.Script = Script;
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exports.createScript = function(code, filename, disp) {
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return new Script(code, filename, disp);
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};
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exports.createContext = function(initSandbox) {
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if (util.isUndefined(initSandbox)) {
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initSandbox = {};
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} else if (binding.isContext(initSandbox)) {
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return initSandbox;
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}
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binding.makeContext(initSandbox);
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return initSandbox;
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};
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exports.runInContext = function(code, sandbox, filename, timeout, disp) {
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var script = exports.createScript(code, filename, disp);
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return script.runInContext(sandbox, timeout, disp);
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};
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exports.runInNewContext = function(code, sandbox, filename, timeout, disp) {
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var script = exports.createScript(code, filename, disp);
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return script.runInNewContext(sandbox, timeout, disp);
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};
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exports.runInThisContext = function(code, filename, timeout, disp) {
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var script = exports.createScript(code, filename, disp);
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return script.runInThisContext(timeout, disp);
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};
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exports.isContext = binding.isContext;
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