aboutsummaryrefslogtreecommitdiff
path: root/node_modules/d/auto-bind.js
diff options
context:
space:
mode:
Diffstat (limited to 'node_modules/d/auto-bind.js')
-rw-r--r--node_modules/d/auto-bind.js32
1 files changed, 32 insertions, 0 deletions
diff --git a/node_modules/d/auto-bind.js b/node_modules/d/auto-bind.js
new file mode 100644
index 000000000..0fdac9b73
--- /dev/null
+++ b/node_modules/d/auto-bind.js
@@ -0,0 +1,32 @@
+'use strict';
+
+var copy = require('es5-ext/object/copy')
+ , normalizeOptions = require('es5-ext/object/normalize-options')
+ , ensureCallable = require('es5-ext/object/valid-callable')
+ , map = require('es5-ext/object/map')
+ , callable = require('es5-ext/object/valid-callable')
+ , validValue = require('es5-ext/object/valid-value')
+
+ , bind = Function.prototype.bind, defineProperty = Object.defineProperty
+ , hasOwnProperty = Object.prototype.hasOwnProperty
+ , define;
+
+define = function (name, desc, options) {
+ var value = validValue(desc) && callable(desc.value), dgs;
+ dgs = copy(desc);
+ delete dgs.writable;
+ delete dgs.value;
+ dgs.get = function () {
+ if (!options.overwriteDefinition && hasOwnProperty.call(this, name)) return value;
+ desc.value = bind.call(value, options.resolveContext ? options.resolveContext(this) : this);
+ defineProperty(this, name, desc);
+ return this[name];
+ };
+ return dgs;
+};
+
+module.exports = function (props/*, options*/) {
+ var options = normalizeOptions(arguments[1]);
+ if (options.resolveContext != null) ensureCallable(options.resolveContext);
+ return map(props, function (desc, name) { return define(name, desc, options); });
+};