OCL Precedence rules
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The precedence order for the operations, starting with the highest precedence, in OCL is: | The precedence order for the operations, starting with the highest precedence, in OCL is: | ||
* dot and arrow operations: “.” and “->” | * dot and arrow operations: <code>“.”</code> and <code>“->”</code> | ||
* unary “not” and unary minus | * unary ''“not”'' and unary ''minus'' | ||
* “*” and “/” | * <code>“*”</code> and <code>“/”</code> | ||
* “+” and binary “-” | * <code>“+”</code> and binary <code>“-”</code> | ||
* “if-then-else-endif” | * ''“if-then-else-endif”'' | ||
* “and”, | * <code>“and”</code>, <code>“or”</code>, and <code>“xor”</code> | ||
* “implies” | * ''“implies”'' | ||
* “<“, “>”, “<=”, “>=” | * <code>“<“</code>, <code>“>”</code>, <code>“<=”</code>, <code>“>=”</code> | ||
* “=”, “<>” | * <code>“=”</code>, <code>“<>”</code> | ||
Parentheses “(“ and “)” can be used to change precedence. | Parentheses ''“(“ and “)”'' can be used to change precedence. | ||
'''Note!''' This is not exactly according to the current OCL standard. In standard OCL, “and”, “or”, “xor” and “implies” have lower precedence than “<“, “>”, “<=”, “>=”, “=”, and “<>” | '''Note!''' This is not exactly according to the current OCL standard. In standard OCL, ''“and”'', ''“or”'', ''“xor”'' and ''“implies”'' have lower precedence than <code>“<“</code>, <code>“>”</code>, <code>“<=”</code>, <code>“>=”</code>, <code>“=”</code>, and <code>“<>”</code> | ||
{{Edited|July|12|2024}} | |||
[[Category:OCL]] | |||
Latest revision as of 05:37, 19 March 2024
The precedence order for the operations, starting with the highest precedence, in OCL is:
- dot and arrow operations:
“.”and“->” - unary “not” and unary minus
“*”and“/”“+”and binary“-”- “if-then-else-endif”
“and”,“or”, and“xor”- “implies”
“<“,“>”,“<=”,“>=”“=”,“<>”
Parentheses “(“ and “)” can be used to change precedence.
Note! This is not exactly according to the current OCL standard. In standard OCL, “and”, “or”, “xor” and “implies” have lower precedence than “<“, “>”, “<=”, “>=”, “=”, and “<>”
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