23 lines
732 B
Go
23 lines
732 B
Go
package types
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import "fmt"
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// An Invariant is a function which tests a particular invariant.
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// The invariant returns a descriptive message about what happened
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// and a boolean indicating whether the invariant has been broken.
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// The simulator will then halt and print the logs.
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type Invariant func(ctx Context) (string, bool)
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// Invariants defines a group of invariants
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type Invariants []Invariant
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// expected interface for registering invariants
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type InvariantRegistry interface {
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RegisterRoute(moduleName, route string, invar Invariant)
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}
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// FormatInvariant returns a standardized invariant message.
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func FormatInvariant(module, name, msg string) string {
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return fmt.Sprintf("%s: %s invariant\n%s\n", module, name, msg)
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}
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