ba816326f3
This patch adds the CloneDetector class which allows searching source code for clones. For every statement or group of statements within a compound statement, CloneDetector computes a hash value, and finds clones by detecting identical hash values. This initial patch only provides a simple hashing mechanism that hashes the kind of each sub-statement. This patch also adds CloneChecker - a simple static analyzer checker that uses CloneDetector to report copy-pasted code. Patch by Raphael Isemann! Differential Revision: https://reviews.llvm.org/D20795 llvm-svn: 276782
28 lines
569 B
Objective-C
28 lines
569 B
Objective-C
// RUN: %clang_cc1 -analyze -Wno-objc-root-class -analyzer-checker=alpha.clone.CloneChecker -verify %s
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// This tests if we search for clones in Objective-C methods.
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@interface A
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- (int) setOk : (int) a : (int) b;
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@end
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@implementation A
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- (int) setOk : (int) a : (int) b { // expected-warning{{Detected code clone.}}
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if (a > b)
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return a;
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return b;
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}
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@end
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@interface B
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- (int) setOk : (int) a : (int) b;
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@end
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@implementation B
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- (int) setOk : (int) a : (int) b { // expected-note{{Related code clone is here.}}
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if (a > b)
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return a;
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return b;
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}
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@end
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