View source for EDT:EGL Language Part Types

Please see the parent of this page, [[EDT:EGL_Language]].

== Part Types (Table 1)  ==

{| width="400" cellspacing="1" cellpadding="1" border="1" style=""
|-
| bgcolor="#999999" align="center" | '''''Part Types''''' 
| bgcolor="#999999" align="center" | '''Core''' 
| bgcolor="#999999" align="center" | '''JavaScript''' 
| bgcolor="#999999" align="center" | '''Java''' 
| bgcolor="#999999" align="center" | '''Debug'''
|-
| bgcolor="#cccccc" | ''DataItem<sup>1</sup>'' 
| <br> 
| <br> 
| <br> 
| <br>
|-
| bgcolor="#cccccc" | ''Function<sup>2, 5</sup>'' 
| <br> 
| <br> 
| <br> 
| <br>
|-
| bgcolor="#cccccc" | ''Top-level function<sup>2, 5</sup>'' 
| <br> 
| <br> 
| <br> 
| <br>
|-
| bgcolor="#cccccc" | ''Delegate<sup>2</sup>'' 
| <br> 
| <span style="text-decoration: underline;">[https://bugs.eclipse.org/bugs/show_bug.cgi?id=352036 JS:Delegates]</span><br> 
| <br> 
| <br>
|-
| bgcolor="#cccccc" | ''Record''<br> 
| <br> 
| <br> 
| <br> 
| <br>
|-
| bgcolor="#cccccc" | ''Structured Record''<br> 
| <br> 
| N/S 
| N/S 
| N/S
|-
| bgcolor="#cccccc" | ''ExternalType''<br> 
| <br> 
| [https://bugs.eclipse.org/bugs/show_bug.cgi?id=352035 JS:ExternalType]<br> 
| <br> 
| <br>
|-
| bgcolor="#cccccc" | ''Handler''<br> 
| <br> 
| <br> 
| <br> 
| <br>
|-
| bgcolor="#cccccc" | ''Library''<br> 
| <br> 
| done<br> 
| <br> 
| <br>
|-
| bgcolor="#cccccc" | ''Service''<br> 
| <br> 
| <br> 
| <br> 
| <br>
|-
| bgcolor="#cccccc" | ''Interface<sup>3</sup>''<br> 
| <br> 
| <br> 
| <br> 
| <br>
|-
| bgcolor="#cccccc" | ''Enumeration''<br> 
| <br> 
| <br> 
| <br> 
| <br>
|-
| bgcolor="#cccccc" | ''Program<sup>4</sup>''<br> 
| <br> 
| N/S<br> 
| <br> 
| <br>
|-
| bgcolor="#cccccc" | ''Array''<br> 
| <br> 
| <br> 
| <br> 
| <br>
|-
| bgcolor="#cccccc" | ''Nullability<sup>6</sup>''<br> 
| <br> 
| <br> 
| <br> 
| <br>
|-
| bgcolor="#cccccc" | ''DataTable''<br> 
| <br> 
| N/S 
| N/S 
| N/S
|-
| bgcolor="#cccccc" | ''Form''<br> 
| <br> 
| N/S 
| N/S 
| N/S
|}

'''Notes on Table 1'''<br> 

#<span style="background: none repeat scroll 0% 0% rgb(255, 165, 0);">In RBD a DataItem can only be used for primitive types. In EDT it can be used for any type.</span> 
#See also Table 2: Function Parameters. 
#Interfaces can be implemented by services <span style="background: none repeat scroll 0% 0% rgb(255, 165, 0);">and handlers (every kind of "logic part" which can be instantiated)</span>. 
#<span style="background: none repeat scroll 0% 0% rgb(255, 165, 0);">There are no called programs in EDT. Use libraries for "local calls" and services for "remote calls".</span> 
#<span style="background: none repeat scroll 0% 0% rgb(255, 165, 0);">We intend to support function overloading in all implementations, even JavaScript.</span> 
#<span style="background: none repeat scroll 0% 0% rgb(255, 165, 0);">Nullability means that a variable may really be null.  It's not an "I'm null" flag like in RBD.  A NullValueException will be thrown if you try to access a field or function of a null variable, even a record. A NullValueException will be thrown if a null variable is an operand to a math operator, an array access, a substring access, a comparison, or a bitwise operator.</span> The string concatenation operators will work the same as in RBD with respect to nulls. &nbsp;:: treats null as the empty string, and&nbsp;?: results in null if either operand is null. <span style="background: none repeat scroll 0% 0% rgb(255, 165, 0);">A question mark won't be allowed on the second operand of the AS and ISA operators (the name of the type).</span>