Class SuspiciousLoop

An optional detector that identifies potentially problematic loops, such as those with unbounded conditions or excessive iteration counts.

Why is it bad?

Loops with always-true conditions or massive iteration limits can lead to high gas consumption and even denial of service (DoS) issues. By flagging these loops, this detector aids auditors in catching potential performance or security risks.

Example

repeat (10_001) { // Bad: High iteration count
    // ...
}

while (true) { // Bad: Unbounded condition
    // ...
}

Hierarchy (view full)

Constructors

constructor

Properties

ctx minSeverity

Accessors

id kind shareImportedWarnings usesSouffle

Methods

check makeWarning skipUnused

Constructors

constructor

Properties

Readonlyctx

ctx: MistiContext

minSeverity

minSeverity: Severity = Severity.MEDIUM

Gets the minimum severity of warnings generated by this detector.

Accessors

id

  • get id(): string

  • Gets the short identifier of the detector, used in analyzer warnings.

    Returns string

    The unique identifier of the detector.

kind

shareImportedWarnings

  • get shareImportedWarnings(): WarningsBehavior

  • Defines the behavior of warnings generated by this detector when working with multiple projects within a single Tact configuration.

    Here are the available options:

    1. "union" Leave this value if you don't care about warnings generated in other projects.
    2. "intersect" If the warning is generated for some source location of the imported file, it should be generated by each of the projects. Example: Constants from an imported file should not be reported iff they are unused in all the projects, so you need "intersect".

    Returns WarningsBehavior

usesSouffle

  • get usesSouffle(): boolean

  • Checks whether this detector needs the Soufflé binary to be executed.

    Returns boolean

Methods

check

ProtectedmakeWarning

ProtectedskipUnused

Settings

Member Visibility

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Why is it bad?Example
Constructors
Properties
Accessors
Methods