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- Spaghetti_stack abstract "A spaghetti stack (also called a cactus stack, saguaro stack or in-tree) in computer science is an N-ary tree data structure in which child nodes have pointers to the parent nodes (but not vice-versa). When a list of nodes is traversed from a leaf node to the root node by chasing these parent pointers, the structure looks like a linked list stack. It can be analogized to a linked list having one and only one parent pointer called "next" or "link", and ignoring that each parent may have other children (which are not accessible anyway since there are no downward pointers).Spaghetti stack structures arise in situations when records are dynamically pushed and popped onto a stack as execution progresses, but references to the popped records remain in use. For example, a compiler for a language such as C creates a spaghetti stack as it opens and closes symbol tables representing block scopes. When a new block scope is opened, a symbol table is pushed onto a stack. When the closing curly brace is encountered, the scope is closed and the symbol table is popped. But that symbol table is remembered, rather than destroyed. And of course it remembers its higher level "parent" symbol table and so on. Thus when the compiler is later performing translations over the abstract syntax tree, for any given expression, it can fetch the symbol table representing that expression's environment and can resolve references to identifiers. If the expression refers to a variable X, it is first sought after in the leaf symbol table representing the inner-most lexical scope, then in the parent and so on.A similar data structure appears in disjoint-set forests, a type of disjoint-set data structure.".
- Spaghetti_stack thumbnail Spaghettistack.svg?width=300.
- Spaghetti_stack wikiPageID "2066241".
- Spaghetti_stack wikiPageRevisionID "606069229".
- Spaghetti_stack hasPhotoCollection Spaghetti_stack.
- Spaghetti_stack subject Category:Continuations.
- Spaghetti_stack subject Category:Data_structures.
- Spaghetti_stack type Abstraction100002137.
- Spaghetti_stack type Act100030358.
- Spaghetti_stack type Activity100407535.
- Spaghetti_stack type Arrangement105726596.
- Spaghetti_stack type Cognition100023271.
- Spaghetti_stack type Continuance101017987.
- Spaghetti_stack type Continuations.
- Spaghetti_stack type DataStructure105728493.
- Spaghetti_stack type DataStructures.
- Spaghetti_stack type Event100029378.
- Spaghetti_stack type PsychologicalFeature100023100.
- Spaghetti_stack type Structure105726345.
- Spaghetti_stack type YagoPermanentlyLocatedEntity.
- Spaghetti_stack comment "A spaghetti stack (also called a cactus stack, saguaro stack or in-tree) in computer science is an N-ary tree data structure in which child nodes have pointers to the parent nodes (but not vice-versa). When a list of nodes is traversed from a leaf node to the root node by chasing these parent pointers, the structure looks like a linked list stack.".
- Spaghetti_stack label "In-Tree".
- Spaghetti_stack label "Pile spaghetti".
- Spaghetti_stack label "Spaghetti stack".
- Spaghetti_stack sameAs In-Tree.
- Spaghetti_stack sameAs Pile_spaghetti.
- Spaghetti_stack sameAs m.06jqw1.
- Spaghetti_stack sameAs Q1453551.
- Spaghetti_stack sameAs Q1453551.
- Spaghetti_stack sameAs Spaghetti_stack.
- Spaghetti_stack wasDerivedFrom Spaghetti_stack?oldid=606069229.
- Spaghetti_stack depiction Spaghettistack.svg.
- Spaghetti_stack isPrimaryTopicOf Spaghetti_stack.
