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Warn about opCmp without opEquals

This commit is contained in:
Hackerpilot 2014-07-23 14:13:27 -07:00
parent 4197b0c829
commit 622c5e75cb
1 changed files with 15 additions and 6 deletions
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21
analysis/opequals_without_tohash.d
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@ -40,6 +40,7 @@ class OpEqualsWithoutToHashCheck : BaseAnalyzer
{
bool hasOpEquals = false;
bool hasToHash = false;
bool hasOpCmp = false;
// Just return if missing children
if (!structBody
@ -61,20 +62,28 @@ class OpEqualsWithoutToHashCheck : BaseAnalyzer
hasOpEquals = true;
else if (methodName == "toHash")
hasToHash = true;
else if (methodName == "opCmp")
hasOpCmp = true;
}
// Warn if has opEquals, but not toHash
if (hasOpEquals && !hasToHash)
{
string message = "Has method 'opEquals', but not 'toHash'.";
string message = "'" ~ name.text ~ "' has method 'opEquals', but not 'toHash'.";
addErrorMessage(name.line, name.column, message);
}
// Warn if has toHash, but not opEquals
else if (!hasOpEquals && hasToHash)
{
string message = "Has method 'toHash', but not 'opEquals'.";
string message = "'" ~ name.text ~ "' has method 'toHash', but not 'opEquals'.";
addErrorMessage(name.line, name.column, message);
}
if (hasOpCmp && !hasOpEquals)
{
addErrorMessage(name.line, name.column,
"'" ~ name.text ~ "' has method 'opCmp', but not 'opEquals'.");
}
}
}
@ -99,7 +108,7 @@ unittest
}
// Fail on class opEquals
class Rabbit // [warn]: Has method 'opEquals', but not 'toHash'.
class Rabbit // [warn]: 'Rabbit' has method 'opEquals', but not 'toHash'.
{
const bool opEquals(Object a, Object b)
{
@ -108,7 +117,7 @@ unittest
}
// Fail on class toHash
class Kangaroo // [warn]: Has method 'toHash', but not 'opEquals'.
class Kangaroo // [warn]: 'Kangaroo' has method 'toHash', but not 'opEquals'.
{
override const hash_t toHash()
{
@ -117,7 +126,7 @@ unittest
}
// Fail on struct opEquals
struct Tarantula // [warn]: Has method 'opEquals', but not 'toHash'.
struct Tarantula // [warn]: 'Tarantula' has method 'opEquals', but not 'toHash'.
{
const bool opEquals(Object a, Object b)
{
@ -126,7 +135,7 @@ unittest
}
// Fail on struct toHash
struct Puma // [warn]: Has method 'toHash', but not 'opEquals'.
struct Puma // [warn]: 'Puma' has method 'toHash', but not 'opEquals'.
{
const nothrow @safe hash_t toHash()
{