Class Sass::Tree::WhileNode
In: lib/sass/tree/while_node.rb
Parent: Node
Haml::Util Engine Color SyntaxError UnitConversionError StandardError Node Operation Literal UnaryOperation Funcall Variable Number String Bool EvaluationContext Node\n[lib/sass/css.rb\nlib/sass/tree/node.rb] DebugNode IfNode CommentNode ForNode MixinNode VariableNode ImportNode WhileNode MixinDefNode Repl CSS Environment Lexer Parser PropNode\n[lib/sass/css.rb\nlib/sass/tree/prop_node.rb] DirectiveNode\n[lib/sass/css.rb\nlib/sass/tree/directive_node.rb] RuleNode\n[lib/sass/css.rb\nlib/sass/tree/rule_node.rb] Rack lib/sass/repl.rb lib/sass/css.rb lib/sass/environment.rb lib/sass/error.rb lib/sass/engine.rb lib/sass/script/lexer.rb lib/sass/script/color.rb lib/sass/script/string.rb lib/sass/script/unary_operation.rb lib/sass/script/variable.rb lib/sass/script/funcall.rb lib/sass/script/operation.rb lib/sass/script/bool.rb lib/sass/script/parser.rb lib/sass/script/literal.rb lib/sass/script/node.rb lib/sass/script/number.rb lib/sass/script/functions.rb Functions Script Files lib/sass/tree/while_node.rb lib/sass/tree/if_node.rb lib/sass/tree/mixin_def_node.rb lib/sass/tree/debug_node.rb lib/sass/tree/for_node.rb lib/sass/tree/import_node.rb lib/sass/tree/prop_node.rb lib/sass/tree/node.rb lib/sass/tree/comment_node.rb lib/sass/tree/mixin_node.rb lib/sass/tree/directive_node.rb lib/sass/tree/rule_node.rb lib/sass/tree/variable_node.rb Tree lib/sass/plugin/rack.rb Plugin Sass dot/m_54_0.png

A dynamic node representing a Sass `@while` loop.

@see Sass::Tree

Methods

_perform   new  

Public Class methods

@param expr [Script::Node] The parse tree for the continue expression

[Source]

    # File lib/sass/tree/while_node.rb, line 9
 9:     def initialize(expr)
10:       @expr = expr
11:       super()
12:     end

Protected Instance methods

Runs the child nodes until the continue expression becomes false.

@param environment [Sass::Environment] The lexical environment containing

  variable and mixin values

@return [Array<Tree::Node>] The resulting static nodes @see Sass::Tree

[Source]

    # File lib/sass/tree/while_node.rb, line 22
22:     def _perform(environment)
23:       children = []
24:       new_environment = Sass::Environment.new(environment)
25:       while @expr.perform(environment).to_bool
26:         children += perform_children(new_environment)
27:       end
28:       children
29:     end

[Validate]