imported>PhilmASTErpLus |
imported>StDoodle |
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| − | {{TOCright}}
| + | Is this like were things like <font color="#ff7000">Script parsing error (X.ash, line Y)</font> are listed?--[[User:Icon315|Icon315]] 22:33, 14 April 2010 (UTC) |
| − | Errors happen. When they do, it helps to have some idea of what what wrong.
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| | | | |
| − | ===Abort===
| + | :It's where they WILL be listed, once they are listed. --[[User:Bale|Bale]] 22:52, 14 April 2010 (UTC) |
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| − | Whenever a script runs the [[abort|abort()]] function, this error is generated.
| + | What Bale said. Also, I changed that to orange; I kept trying to click on it. :( --[[User:StDoodle|StDoodle (#1059825)]] 00:35, 15 April 2010 (UTC) |
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| − | {{CodeSample|
| + | Also, if anyone's feeling particularly ambitious, https://kolmafia.svn.sourceforge.net/svnroot/kolmafia/src/net/sourceforge/kolmafia/textui/Parser.java should help. Just look for all the instances of parseException. (Speaking of which, would it be useful if these were presented in the order that they're checked?) --[[User:Heeheehee|Heeheehee]] 00:17, 17 April 2010 (UTC) |
| − | description=The zero-parameter form:|
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| − | code=
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| − | <syntaxhighlight>
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| − | abort();
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| − | </syntaxhighlight>}}
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| − | will stop the execution and print: <span style="color:red">KoLmafia declares world peace.</span> Note that this message may also appear as a result of pressing Esc in the Main Interface or hitting "stop now" in the Adventure tab.
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| − | {{CodeSample|
| + | I think alphabetical order would be better: this page is going to be excellent for first-time ASH scripters to understand what's wrong with their script. --[[User:Slyz|Slyz]] 10:41, 17 April 2010 (UTC) |
| − | description=The one-parameter form:|
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| − | code=
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| − | <syntaxhighlight>
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| − | abort("Aborting script...");
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| − | </syntaxhighlight>}}
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| − | will stop the execution and print: <span style="color:red">Aborting script...</span>
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| | | | |
| − | ===Cannot initialize parameter [parameter]===
| + | Should we add the correct examples? Or are the fixes clear enough? |
| | + | --[[User:Slyz|Slyz]] 08:36, 18 April 2010 (UTC) |
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| − | This error is created when an assignment is attempted inside a function declaration.
| + | If anything particularly complicated shows, we can give both. But so far, if you can't follow as written, I'm not sure you ever will. (That's the hypothetical "you," not the specific "hey Slyz what's wrong with you, you"). --[[User:StDoodle|StDoodle (#1059825)]] 23:35, 19 April 2010 (UTC) |
| − | The following code results in an error.
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| − | | |
| − | {{CodeSample|
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| − | code=
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| − | <syntaxhighlight>
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| − | /* test.ash */
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| − | | |
| − | void my_function( string myvar = "value" )
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| − | {
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| − | /* Do something */
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| − | }
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| − | </syntaxhighlight>}}
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| − | will halt the script and print: <span style="color: red;">Cannot initialize parameter myvar (test.ash, line X)</span>
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| − | | |
| − | ===Cannot return [datatype] from [datatype] function===
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| − | | |
| − | This indicates that the return value does not match the function's type.
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| − | | |
| − | {{CodeSample|
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| − | description=Example:|
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| − | code=
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| − | <syntaxhighlight>
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| − | int stuff(){
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| − | return "4";
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| − | }
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| − | </syntaxhighlight>}}
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| − | will cause this error: <span style="color:red">Cannot return string value from int function (test.ash, line 2)</span>
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| − | | |
| − | {{CodeSample|
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| − | description=Similarly, for void functions:|
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| − | code=
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| − | <syntaxhighlight>
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| − | void stuff(){
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| − | return 4;
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| − | }
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| − | </syntaxhighlight>}}
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| − | will cause this error: <span style="color:red">Cannot return a value from a void function (test.ash, line 2)</span>
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| − | | |
| − | ===Encountered '[break|continue]' outside loop===
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| − | | |
| − | This indicates that the control structure in question was not in a loop.
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| − | | |
| − | {{CodeSample|
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| − | description=Example:|
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| − | code=
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| − | <syntaxhighlight>
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| − | continue;
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| − | </syntaxhighlight>}}
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| − | will cause this error: <span style="color:red">Encountered 'continue' outside of loop (test.ash, line 1)</span>
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| − | | |
| − | ===Expected===
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| − | This generally indicates a syntax problem (missing ending semi-colon, unmatched braces, unmatched parenthesis etc...).
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| − | | |
| − | {{CodeSample|
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| − | description=Example:|
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| − | code=
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| − | <syntaxhighlight>
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| − | int a = 1
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| − | print(a);
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| − | </syntaxhighlight>}}
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| − | will cause this error: <span style="color:red">Expected ;, found print (test.ash, line 2)</span>
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| − | | |
| − | ===Function defined multiple times===
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| − | This indicates that the function in question has already been defined.
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| − | {{CodeSample|
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| − | description=Example:|
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| − | code=
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| − | <syntaxhighlight>
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| − | int abs(int a){
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| − | return a*((a>0).to_int()*2 - 1);
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| − | }
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| − | int abs(int a){
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| − | if(a<0) a = -a;
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| − | return a;
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| − | }
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| − | </syntaxhighlight>}}
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| − | will cause this error: <span style="color:red">Function <nowiki>'abs( int )'</nowiki> defined multiple times (test.ash, line 4)</span>
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| − | | |
| − | ==="if" requires a boolean conditional expression ===
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| − | | |
| − | This indicates that the condition inside an if statement is not a boolean.
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| − | | |
| − | {{CodeSample|
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| − | description=Example:|
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| − | code=
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| − | <syntaxhighlight>
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| − | if(42) {
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| − | print("Don't panic.");
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| − | }
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| − | </syntaxhighlight>}}
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| − | will cause this error: <span style="color:red">"if" requires a boolean conditional expression (test.ash, line 1)</span>
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| − | | |
| − | ===Index type is not a primitive type===
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| − | | |
| − | This indicates that the map's index is not a standard datatype (float, int, string, etc.).
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| − | {{CodeSample|
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| − | description=Example:|
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| − | code=
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| − | <syntaxhighlight>
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| − | record alpha{
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| − | int a;
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| − | int b;
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| − | };
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| − | int[alpha] map;
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| − | </syntaxhighlight>}}
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| − | will cause this error: <span style="color:red">Index type 'alpha' is not a primitive type (test.ash, line 5)</span> | |
| − | | |
| − | ===Invalid field name===
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| − | | |
| − | This indicates that the record does not contain the field in question.
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| − | {{CodeSample|
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| − | description=Example:|
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| − | code=
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| − | <syntaxhighlight>
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| − | record my_record {
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| − | string a;
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| − | string b;
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| − | };
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| − | | |
| − | my_record [int] my_map;
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| − | my_map[1].c = "hello";
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| − | </syntaxhighlight>}}
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| − | will cause this error: <span style="color:red">Invalid field name 'c' (test.ash, line 7)</span>
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| − | | |
| − | Note that this error may also be encountered when neglecting to name a field.
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| − | {{CodeSample|
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| − | description= For instance:|
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| − | code=
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| − | <syntaxhighlight>
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| − | record my_record {
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| − | string;
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| − | };
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| − | </syntaxhighlight>}}
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| − | will cause this error: <span style="color:red">Invalid field name ';' (test.ash, line 2)</span>
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| − | | |
| − | ===Invalid type name===
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| − | | |
| − | This indicates that the specified type is not recognized by Mafia.
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| − | | |
| − | {{CodeSample|
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| − | description=Example:|
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| − | code=
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| − | <syntaxhighlight>
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| − | int[fruit] map;
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| − | </syntaxhighlight>}}
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| − | will cause this error: <span style="color:red">Invalid type name 'fruit' (test.ash, line 1)</span>
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| − | | |
| − | ===Main method must appear at top level===
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| − | | |
| − | This indicates that the script's main method is inside another method, for some reason. This is usually caused by a missing brace.
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| − | | |
| − | {{CodeSample|
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| − | description=Example:|
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| − | code=
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| − | <syntaxhighlight>
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| − | void stuff() {
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| − | // stuff happens here
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| − | | |
| − | void main() {
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| − | stuff();
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| − | }
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| − | </syntaxhighlight>}}
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| − | will cause this error: <span style="color:red">main method must appear at top level (test.ash, line 6)</span>
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| − | | |
| − | ===Map modified within foreach===
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| − | You cannot add new entries into a map within a <code>[[foreach]]</code> loop. This can happen if you accidentally wrap the name of a string variable with double-quotes for referencing a map entry.
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| − | | |
| − | {{CodeSample|
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| − | description=For example, the following code|
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| − | code=
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| − | <syntaxhighlight>
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| − | item [string] my_map;
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| − | /* Populate my_map with several entries */
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| − | foreach str in my_map
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| − | print( str + " => " + my_map[ "str" ];
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| − | </syntaxhighlight>}}
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| − | | |
| − | Yields: <span style="color: red;">Map modified within foreach (filename.ash, line X)</span>
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| − | | |
| − | ===Missing return value===
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| − | The last line of a user-defined function has to be "return <value>;" (although the [[Control_Structures#return|return]] command can be used before too).
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| − | | |
| − | {{CodeSample|
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| − | description=Example:|
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| − | code=
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| − | <syntaxhighlight>
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| − | int my_function( int a, int b ) {
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| − | if ( a > b ) return a ;
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| − | else return b ;
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| − | }
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| − | </syntaxhighlight>}}
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| − | will cause this error: <span style="color:red">Missing return value (test.ash, line 4)</span>
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| − | | |
| − | ===No closing found===
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| − | This can be caused by forgetting to put a '''"''' or a ''']''' at the end of an argument
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| − | | |
| − | {{CodeSample|
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| − | description=Example:|
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| − | code=
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| − | <syntaxhighlight>
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| − | buy(1000 , $item[disco ball, 225);
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| − | </syntaxhighlight>}}
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| − | will cause this error: <span style="color:red">No closing ] found (testing.ash, line 1)</span>
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| − | | |
| − | ===Record expected===
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| − | This indicates that an unrecognized record was found. This often appears when you forget to append "()" to a function name.
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| − | | |
| − | {{CodeSample|
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| − | description=Example:|
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| − | code=
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| − | <syntaxhighlight>
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| − | print(4.to_string);
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| − | </syntaxhighlight>}}
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| − | will cause this error: <span style="color:red">Record expected (test.ash, line 2)</span>
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| − | ===Record name is already defined===
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| − | This indicates that the record name has already been defined, and so cannot be reused. The solution is to change the record name.
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| − | | |
| − | {{CodeSample|
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| − | description=Example:|
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| − | code=
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| − | <syntaxhighlight>
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| − | record str {
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| − | string a;
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| − | string b;
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| − | };
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| − | record str {
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| − | int a;
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| − | int b;
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| − | };
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| − | </syntaxhighlight>}}
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| − | will cause this error: <span style="color:red">Record name 'str' is already defined (test.ash, line 5)</span>
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| − | | |
| − | ===Return needs [datatype] value===
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| − | This indicates that the return value is void when the function is not.
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| − | | |
| − | {{CodeSample|
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| − | description=Example:|
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| − | code=
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| − | <syntaxhighlight>
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| − | int stuff() {
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| − | return;
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| − | }
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| − | </syntaxhighlight>}}
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| − | will cause this error: <span style="color:red">Return needs int value (test.ash, line 2)</span>
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| − | | |
| − | ===Reserved word cannot be a [function|record|variable] name===
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| − | | |
| − | This indicates that the desired name has been [[Reserved Words|reserved]], and so cannot be used. The solution is to use a different name.
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| − | | |
| − | {{CodeSample|
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| − | description=An invalid name:|
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| − | code=
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| − | <syntaxhighlight>
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| − | int float(float a) {
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| − | return round(a);
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| − | }
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| − | </syntaxhighlight>}}
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| − | will cause this error: <span style="color:red">Reserved word 'float' cannot be used as a function name (test.ash, line 1)</span>
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| − | | |
| − | An interesting point to note is that ASH functions take precedent over identically named custom functions rather than throw an exception.
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| − | | |
| − | {{CodeSample|
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| − | description=An invalid record name:|
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| − | code=
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| − | <syntaxhighlight>
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| − | record string {
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| − | string a;
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| − | string b;
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| − | };
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| − | </syntaxhighlight>}}
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| − | will cause this error: <span style="color:red">Reserved word 'string' cannot be a record name (test.ash, line 1)</span>
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| − | | |
| − | {{CodeSample|
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| − | description=An invalid variable name:|
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| − | code=
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| − | <syntaxhighlight>
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| − | string item = "bottle of gin";
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| − | </syntaxhighlight>}}
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| − | will cause this error: <span style="color:red">Reserved word 'item' cannot be a variable name (test.ash, line 1)</span>
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| − | | |
| − | ===Script parsing error===
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| − | | |
| − | This generally indicates a syntax problem, as in having an excess amount of braces or a variable/function/record name that starts with an invalid character.
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| − | | |
| − | {{CodeSample|
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| − | description=Example:|
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| − | code=
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| − | <syntaxhighlight>
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| − | put_shop(0 ,0 ,$item[wolf mask]);
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| − | put_shop(0 ,0 ,$item[rave whistle]);
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| − | put_shop(0 ,0 ,$item[giant needle]);
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| − | cli_execute ("undercut");
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| − | }
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| − | </syntaxhighlight>}}
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| − | will cause this error: <span style="color:red">Script parsing error (test.ash, line 5)</span>
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| − | | |
| − | ===Variable is already defined===
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| − | | |
| − | This indicates that the same variable has been declared twice.
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| − | | |
| − | {{CodeSample|
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| − | description=Example:|
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| − | code=
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| − | <syntaxhighlight>
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| − | int Drops ;
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| − | int Meat ;
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| − | int Drops = numeric_modifier("Item Drop");
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| − | </syntaxhighlight>}}
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| − | will cause this error: <span style="color:red">Variable Drops is already defined (test.ash, line 3)</span>
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| − | {{RFI|Obviously, a lot more info is needed here.}}
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| − | [[Category:Scripting]]
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