Difference between revisions of "Local Declaration Guidelines"
(New page: {{UnderConstruction}} Category:Coding Style Guidelines Local declaration style guidelines for contributing to the Eiffel Software code repository. == Feature Arguments == Feature arg...) |
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== Feature Arguments == | == Feature Arguments == | ||
| − | Feature arguments should begin with the prefix <e>a_</e> and nothing more. | + | Feature arguments should begin with the prefix <e>a_</e> and nothing more. The prefix <e>a_</e> represent a contraction of the word ''argument'' and does not represent the singular inflection - a ''noun'' - Therefore it is '''not''' valid to utilize ''an'' when the suffixed argument word begins with a vowel. The following is a correct usage: |
| − | + | ||
| − | The prefix <e>a_</e> represent a contraction of the word ''argument'' and does not represent the singular inflection - a ''noun'' - Therefore it is '''not''' valid to utilize ''an'' when the suffixed argument word begins with a vowel. The following is a correct usage: | + | |
<e> | <e> | ||
f (a_string: STRING; a_integer: STRING) | f (a_string: STRING; a_integer: STRING) | ||
| − | + | ... | |
| + | do | ||
| + | end | ||
</e> | </e> | ||
| − | Here, the second argument <e>a_integer</e>, is not considered ''A Integer'' but ''The Argument Integer''. | + | Here, the second argument <e>a_integer</e>, is not considered ''A Integer'' but ''The Argument Integer'', hence the use if <e>a_</e> instead of <e>_an_</e>. |
=== In-line Agent Feature Arguments === | === In-line Agent Feature Arguments === | ||
When working with an in-line agent, to prevent conflicts with the enclosing feature's arguments, the prefix <e>ia_</e> should be used. The same rules regarding English language rules apply here as they do to feature arguments. The IA prefix represents an ''In-line Argument''. | When working with an in-line agent, to prevent conflicts with the enclosing feature's arguments, the prefix <e>ia_</e> should be used. The same rules regarding English language rules apply here as they do to feature arguments. The IA prefix represents an ''In-line Argument''. | ||
| + | |||
| + | <e> | ||
| + | f (a_string: STRING; a_integer: STRING) | ||
| + | ... | ||
| + | do | ||
| + | process (agent (ia_string: STRING; ia_integer: INTEGER) | ||
| + | do | ||
| + | ... | ||
| + | end (a_string, a_integer)) | ||
| + | end | ||
| + | </e> | ||
== Local Declarations == | == Local Declarations == | ||
Revision as of 11:25, 9 January 2009
Not Ready for Review: This Page is Under Development!
Local declaration style guidelines for contributing to the Eiffel Software code repository.
Contents
Feature Arguments
Feature arguments should begin with the prefix a_ and nothing more. The prefix a_ represent a contraction of the word argument and does not represent the singular inflection - a noun - Therefore it is not valid to utilize an when the suffixed argument word begins with a vowel. The following is a correct usage:
f (a_string: STRING; a_integer: STRING) ... do end
Here, the second argument a_integer, is not considered A Integer but The Argument Integer, hence the use if a_ instead of _an_.
In-line Agent Feature Arguments
When working with an in-line agent, to prevent conflicts with the enclosing feature's arguments, the prefix ia_ should be used. The same rules regarding English language rules apply here as they do to feature arguments. The IA prefix represents an In-line Argument.
f (a_string: STRING; a_integer: STRING) ... do process (agent (ia_string: STRING; ia_integer: INTEGER) do ... end (a_string, a_integer)) end
Local Declarations
l_
In Contracts
Due to the current scoping rules of object-tests
rl_ for require
el_ for ensure
cl_ for check
ll_ for loop
il_ for loop invariant
vl_ for loop variant
Indexing
When a conflict between local delcarations exist a form of indexing must be use
equals (a_object: ANY; a_other_object: ANY): BOOLEAN
