Documentation:OCL Precedence rules: Difference between revisions

OCL Precedence rules

Revision as of 22:10, 16 June 2024

This page was created by Lars.olofsson@mdriven.net on 2023-05-03. Last edited by Edgar on 2025-01-20.

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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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 The precedence order for the operations, starting with the highest precedence, in OCL is:
 * dot and arrow operations: <code>“.”</code> and <code>“->”</code>