CfgScript Variable Declaration Statements
| Expression statement | block {} Statement | Branch Statements | Loop Statements | Type Declaration | Variable Declaration | Synchronize Statements | With Statement | Using Statement | Type Alias |
Type declarations introduces new Variable in a Script
See also:
Types.
VarDecl
VarDecl
VarDecl : [
A component type name identifies a enumeration or class name with optional namespace/package name.
Class Name Resolution
The class name resolution works in following steps: Search in TypeAlias
CfgScript first looks in the TypeAlias tables if there is
any alias for given TypeName.If an alias was found the type name will replaced with the original type name.
See also:
Type Alias. Search in Usings
Next step is to search in the declared using
in the scope.See also:
Using Statement. Search in Namespace
If the type was not found in the further steps
the type are searched in the list of loaded
classes.If no namespace name is given it search through all namespaces to find the given class.
If the same namespace exists in different namespaces the first found class will be choosen (no warning, no error!).
If it the class cannot be found it uses the ClassLoader to try to load the class.
For more information about ClassLoader please refer to
Library. Scoped Variables
The scope of variables are limited by their block:
int i = 42; // is global scope
{ // Block, introduce new scope
int i = 1; // overwrite variable for this scope
int j = 2; // j is only valid in this scope
i == 1;
j == 2;
} // leaving scope
i == 42; // i is now global scope
j == 2; // invalid because j is not longer valid
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Typed Variable Declarations
Typed variables has a defined type
int i; // i is an int
acdk.lang.StringBuffer sb; // sb is StringBuffer
i = 3; // OK
i = 4.3; // OK, convert automatically
i = "A Text"; // throws ClassCastException
sb = new acdk.lang.StringBuffer(""); // OK
sb = new Integer(2); // throws ClassCastException
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Untyped Variable Declarations
In the default mode ad hoc variables usage, without
a defined type of the variable is also possible:
i = 2; // i is a any-type (DmiObject) containing a byte i = "Text"; // now i contains a string Any j = 2; // Explicit Any type |
See also:
PragmaStatement.See also:
Any Type. Global variables
The Script Environment contains following global variables.- interpreter: instance of current
acdk::cfgscript::Script.
- false: Boolean(false)
- true: Boolean(true)
- Nil, nil, null: Nil object
- out: acdk.lang.System.out
- err: acdk.lang.System.err
- File_separator: acdk.io.File.separator
- File_pathSeparator: acdk.io.File.pathSeparator