ember-material-icons
Version:
Google Material icons for your ember-cli app
58 lines (57 loc) • 2.07 kB
TypeScript
export declare class SymbolTable {
private symbols;
private parent;
constructor(symbols: string[], parent?: SymbolTable);
hasLocalVariable(name: string): boolean;
}
/**
* Takes in an AST and outputs a list of actions to be consumed
* by a compiler. For example, the template
*
* foo{{bar}}<div>baz</div>
*
* produces the actions
*
* [['startProgram', [programNode, 0]],
* ['text', [textNode, 0, 3]],
* ['mustache', [mustacheNode, 1, 3]],
* ['openElement', [elementNode, 2, 3, 0]],
* ['text', [textNode, 0, 1]],
* ['closeElement', [elementNode, 2, 3],
* ['endProgram', [programNode]]]
*
* This visitor walks the AST depth first and backwards. As
* a result the bottom-most child template will appear at the
* top of the actions list whereas the root template will appear
* at the bottom of the list. For example,
*
* <div>{{#if}}foo{{else}}bar<b></b>{{/if}}</div>
*
* produces the actions
*
* [['startProgram', [programNode, 0]],
* ['text', [textNode, 0, 2, 0]],
* ['openElement', [elementNode, 1, 2, 0]],
* ['closeElement', [elementNode, 1, 2]],
* ['endProgram', [programNode]],
* ['startProgram', [programNode, 0]],
* ['text', [textNode, 0, 1]],
* ['endProgram', [programNode]],
* ['startProgram', [programNode, 2]],
* ['openElement', [elementNode, 0, 1, 1]],
* ['block', [blockNode, 0, 1]],
* ['closeElement', [elementNode, 0, 1]],
* ['endProgram', [programNode]]]
*
* The state of the traversal is maintained by a stack of frames.
* Whenever a node with children is entered (either a ProgramNode
* or an ElementNode) a frame is pushed onto the stack. The frame
* contains information about the state of the traversal of that
* node. For example,
*
* - index of the current child node being visited
* - the number of mustaches contained within its child nodes
* - the list of actions generated by its child nodes
*/
declare function TemplateVisitor(): void;
export default TemplateVisitor;