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Changed ExpressionUnderCursor to handle Objective-C send-message operations.

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This commit is contained in:
Erik Verbruggen
2009-11-11 09:35:42 +01:00
parent a6bbec2b56
commit 2d2d0b59c8
2 changed files with 177 additions and 3 deletions
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41
src/libs/cplusplus/ExpressionUnderCursor.cpp
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@@ -106,8 +106,45 @@ int ExpressionUnderCursor::startOfExpression_helper(BackwardsScanner &tk, int in
return startOfExpression(tk, index - 2);
} else if (tk[index - 2].is(T_DOT_STAR) || tk[index - 2].is(T_ARROW_STAR)) {
return startOfExpression(tk, index - 2);
// } else if (tk[index - 2].is(T_IDENTIFIER) && tk[index - 3].is(T_LBRACKET)) {
// return index - 3;
} else if (tk[index - 2].is(T_LBRACKET)) {
// array subscription:
// array[i
return index - 1;
} else if (tk[index - 2].is(T_COLON)) {
// either of:
// cond ? expr1 : id
// or:
// [receiver messageParam:id
// and in both cases, the id (and only the id) is what we want, so:
return index - 1;
} else if (tk[index - 2].is(T_IDENTIFIER) && tk[index - 3].is(T_LBRACKET)) {
// Very common Objective-C case:
// [receiver message
// which we handle immediately:
return index - 3;
} else {
// See if we are handling an Objective-C messaging expression in the form of:
// [receiver messageParam1:expression messageParam2
// or:
// [receiver messageParam1:expression messageParam2:expression messageParam3
// ... etc
int i = index - 1;
while (tk[i].isNot(T_EOF_SYMBOL)) {
if (tk[i].is(T_LBRACKET))
break;
if (tk[i].is(T_LBRACE) || tk[i].is(T_RBRACE))
break;
else if (tk[i].is(T_RBRACKET))
i = tk.startOfMatchingBrace(i + 1) - 1;
else
--i;
}
int j = i;
while (tk[j].is(T_LBRACKET))
++j;
if (tk[j].is(T_IDENTIFIER) && tk[j + 1].is(T_IDENTIFIER))
return i;
}
return index - 1;
} else if (tk[index - 1].is(T_RPAREN)) {