List of all checkers
Here is an overview of the checkers currently available in Infer.
Annotation Reachability
Given pairs of source and sink annotations, e.g. @A and @B, this checker will warn whenever some method annotated with @A calls, directly or indirectly, another method annotated with @B. Besides the custom pairs, it is also possible to enable some built-in checks, such as @PerformanceCritical reaching @Expensive or @NoAllocation reaching new. See flags starting with --annotation-reachability.
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Biabduction
This analysis deals with a range of issues, many linked to memory safety.
***DEPRECATED*** This has been replaced by Pulse and will be removed in the next release.
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Buffer Overrun Analysis (InferBO)
InferBO is a detector for out-of-bounds array accesses.
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Config Impact Analysis
[EXPERIMENTAL] Collects function that are called without config checks.
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Cost: Complexity Analysis
Computes the asymptotic complexity of functions with respect to execution cost or other user defined resources. Can be used to detect changes in the complexity with infer reportdiff.
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Datalog-based points-to analysis
Experimental datalog-based points-to analysis.
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Fragment Retains View
Detects when Android fragments are not explicitly nullified before becoming unreachable.
***DEPRECATED*** Unmaintained due to poor precision.
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Impurity
Detects functions with potential side-effects. Same as "purity", but implemented on top of Pulse.
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Inefficient keySet Iterator
Check for inefficient uses of iterators that iterate on keys then lookup their values, instead of iterating on key-value pairs directly.
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Lineage
Computes a dataflow graph
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Litho "Required Props"
Checks that all non-optional @Props have been specified when constructing Litho components.
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Liveness
Detection of dead stores and unused variables.
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Loop Hoisting
Detect opportunities to hoist function calls that are invariant outside of loop bodies for efficiency.
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Parameter Not Null Checked
An Objective-C-specific analysis to detect when a block parameter is used before being checked for null first.
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printf() Argument Types
Detect mismatches between the Java printf format strings and the argument types For example, this checker will warn about the type error in printf("Hello %d", "world")
***DEPRECATED*** Unmaintained.
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Pulse
General-purpose memory and value analysis engine.
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Purity
Detects pure (side-effect-free) functions. A different implementation of "impurity".
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Quandary
The Quandary taint analysis detects flows of values between sources and sinks, except if the value went through a "sanitizer". In addition to some defaults, users can specify their own sources, sinks, and sanitizers functions.
***DEPRECATED*** Taint analysis is now supported by the Pulse checker and Quandary will be removed in the next release.
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RacerD
Thread safety analysis.
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Resource Leak Lab Exercise
Toy checker for the "resource leak" write-your-own-checker exercise.
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SIL validation
This checker validates that all SIL instructions in all procedure bodies conform to a (front-end specific) subset of SIL.
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Static Initialization Order Fiasco
Catches Static Initialization Order Fiascos in C++, that can lead to subtle, compiler-version-dependent errors.
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Scope Leakage
The Java/Kotlin checker takes into account a set of "scope" annotations and a must-not-hold relation over the scopes. The checker raises an alarm if there exists a field access path from object A to object B, with respective scopes SA and SB, such that must-not-hold(SA, SB).
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Self in Block
An Objective-C-specific analysis to detect when a block captures self.
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Starvation
Detect various kinds of situations when no progress is being made because of concurrency errors.
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Topl
Detect errors based on user-provided state machines describing temporal properties over multiple objects.