| 22 | 22 | The static scopes have a tree structure: one scope is a child of another if the first is immediately contained in the second. Scope 0, which is the file scope (or root scope) is the root of this tree. The static scope tree is depicted in Figure 5.2 (left). Each scope is identified by its integer ID. Additionally, if the scope happens to be the scope of a function definition, the name of the function is included in this identifier. A node in this tree also shows the variables and functions declared in the scope. For brevity, we omit the proc variables. |
