switch to vuepress

3 files changed, 253 insertions, 0 deletions

diff --git a/node_modules/stylus/lib/stack/frame.js b/node_modules/stylus/lib/stack/frame.js
new file mode 100644
index 00000000..ce3117d5
--- /dev/null
+++ b/node_modules/stylus/lib/stack/frame.js
@@ -0,0 +1,65 @@
+
+/*!
+ * Stylus - stack - Frame
+ * Copyright (c) Automattic <developer.wordpress.com>
+ * MIT Licensed
+ */
+
+/**
+ * Module dependencies.
+ */
+
+var Scope = require('./scope');
+
+/**
+ * Initialize a new `Frame` with the given `block`.
+ *
+ * @param {Block} block
+ * @api private
+ */
+
+var Frame = module.exports = function Frame(block) {
+  this._scope = false === block.scope
+    ? null
+    : new Scope;
+  this.block = block;
+};
+
+/**
+ * Return this frame's scope or the parent scope
+ * for scope-less blocks.
+ *
+ * @return {Scope}
+ * @api public
+ */
+
+Frame.prototype.__defineGetter__('scope', function(){
+  return this._scope || this.parent.scope;
+});
+
+/**
+ * Lookup the given local variable `name`.
+ *
+ * @param {String} name
+ * @return {Node}
+ * @api private
+ */
+
+Frame.prototype.lookup = function(name){
+  return this.scope.lookup(name)
+};
+
+/**
+ * Custom inspect.
+ *
+ * @return {String}
+ * @api public
+ */
+
+Frame.prototype.inspect = function(){
+  return '[Frame '
+    + (false === this.block.scope
+        ? 'scope-less'
+        : this.scope.inspect())
+    + ']';
+};
diff --git a/node_modules/stylus/lib/stack/index.js b/node_modules/stylus/lib/stack/index.js
new file mode 100644
index 00000000..9e288c62
--- /dev/null
+++ b/node_modules/stylus/lib/stack/index.js
@@ -0,0 +1,135 @@
+
+/*!
+ * Stylus - Stack
+ * Copyright (c) Automattic <developer.wordpress.com>
+ * MIT Licensed
+ */
+
+/**
+ * Initialize a new `Stack`.
+ *
+ * @api private
+ */
+
+var Stack = module.exports = function Stack() {
+  Array.apply(this, arguments);
+};
+
+/**
+ * Inherit from `Array.prototype`.
+ */
+
+Stack.prototype.__proto__ = Array.prototype;
+
+/**
+ * Push the given `frame`.
+ *
+ * @param {Frame} frame
+ * @api public
+ */
+
+Stack.prototype.push = function(frame){
+  frame.stack = this;
+  frame.parent = this.currentFrame;
+  return [].push.apply(this, arguments);
+};
+
+/**
+ * Return the current stack `Frame`.
+ *
+ * @return {Frame}
+ * @api private
+ */
+
+Stack.prototype.__defineGetter__('currentFrame', function(){
+  return this[this.length - 1];
+});
+
+/**
+ * Lookup stack frame for the given `block`.
+ *
+ * @param {Block} block
+ * @return {Frame}
+ * @api private
+ */
+
+Stack.prototype.getBlockFrame = function(block){
+  for (var i = 0; i < this.length; ++i) {
+    if (block == this[i].block) {
+      return this[i];
+    }
+  }
+};
+
+/**
+ * Lookup the given local variable `name`, relative
+ * to the lexical scope of the current frame's `Block`.
+ *
+ * When the result of a lookup is an identifier
+ * a recursive lookup is performed, defaulting to
+ * returning the identifier itself.
+ *
+ * @param {String} name
+ * @return {Node}
+ * @api private
+ */
+
+Stack.prototype.lookup = function(name){
+  var block = this.currentFrame.block
+    , val
+    , ret;
+
+  do {
+    var frame = this.getBlockFrame(block);
+    if (frame && (val = frame.lookup(name))) {
+      return val;
+    }
+  } while (block = block.parent);
+};
+
+/**
+ * Custom inspect.
+ *
+ * @return {String}
+ * @api private
+ */
+
+Stack.prototype.inspect = function(){
+  return this.reverse().map(function(frame){
+    return frame.inspect();
+  }).join('\n');
+};
+
+/**
+ * Return stack string formatted as:
+ *
+ *   at <context> (<filename>:<lineno>:<column>)
+ *
+ * @return {String}
+ * @api private
+ */
+
+Stack.prototype.toString = function(){
+  var block
+    , node
+    , buf = []
+    , location
+    , len = this.length;
+
+  while (len--) {
+    block = this[len].block;
+    if (node = block.node) {
+      location = '(' + node.filename + ':' + (node.lineno + 1) + ':' + node.column + ')';
+      switch (node.nodeName) {
+        case 'function':
+          buf.push('    at ' + node.name + '() ' + location);
+          break;
+        case 'group':
+          buf.push('    at "' + node.nodes[0].val + '" ' + location);
+          break;
+      }
+    }
+  }
+
+  return buf.join('\n');
+};
diff --git a/node_modules/stylus/lib/stack/scope.js b/node_modules/stylus/lib/stack/scope.js
new file mode 100644
index 00000000..aeda4cf0
--- /dev/null
+++ b/node_modules/stylus/lib/stack/scope.js
@@ -0,0 +1,53 @@
+
+/*!
+ * Stylus - stack - Scope
+ * Copyright (c) Automattic <developer.wordpress.com>
+ * MIT Licensed
+ */
+
+/**
+ * Initialize a new `Scope`.
+ *
+ * @api private
+ */
+
+var Scope = module.exports = function Scope() {
+  this.locals = {};
+};
+
+/**
+ * Add `ident` node to the current scope.
+ *
+ * @param {Ident} ident
+ * @api private
+ */
+
+Scope.prototype.add = function(ident){
+  this.locals[ident.name] = ident.val;
+};
+
+/**
+ * Lookup the given local variable `name`.
+ *
+ * @param {String} name
+ * @return {Node}
+ * @api private
+ */
+
+Scope.prototype.lookup = function(name){
+  return this.locals[name];
+};
+
+/**
+ * Custom inspect.
+ *
+ * @return {String}
+ * @api public
+ */
+
+Scope.prototype.inspect = function(){
+  var keys = Object.keys(this.locals).map(function(key){ return '@' + key; });
+  return '[Scope'
+    + (keys.length ? ' ' + keys.join(', ') : '')
+    + ']';
+};