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• Variables

Variables

var ExternFunctionMetadata = []expr.FunctionMetadata{
	{
		Name:          "ip",
		ReturnType:    config.IP_ADDRESS,
		ArgumentTypes: []config.ValueType{config.STRING},
	},
	{
		Name:          "timestamp",
		ReturnType:    config.TIMESTAMP,
		ArgumentTypes: []config.ValueType{config.STRING},
	},
	{
		Name:          "match",
		ReturnType:    config.BOOL,
		ArgumentTypes: []config.ValueType{config.STRING, config.STRING},
	},
	{
		Name:          "matches",
		Instance:      true,
		TargetType:    config.STRING,
		ReturnType:    config.BOOL,
		ArgumentTypes: []config.ValueType{config.STRING},
	},
	{
		Name:          "startsWith",
		Instance:      true,
		TargetType:    config.STRING,
		ReturnType:    config.BOOL,
		ArgumentTypes: []config.ValueType{config.STRING},
	},
	{
		Name:          "endsWith",
		Instance:      true,
		TargetType:    config.STRING,
		ReturnType:    config.BOOL,
		ArgumentTypes: []config.ValueType{config.STRING},
	},
}

ExternFunctionMetadata is the type-metadata about externs. It gets used during compilations.

var Externs = map[string]interpreter.Extern{
	"ip":              interpreter.ExternFromFn("ip", externIP),
	"ip_equal":        interpreter.ExternFromFn("ip_equal", externIPEqual),
	"timestamp":       interpreter.ExternFromFn("timestamp", externTimestamp),
	"timestamp_equal": interpreter.ExternFromFn("timestamp_equal", externTimestampEqual),
	"match":           interpreter.ExternFromFn("match", externMatch),
	"matches":         interpreter.ExternFromFn("matches", externMatches),
	"startsWith":      interpreter.ExternFromFn("startsWith", externStartsWith),
	"endsWith":        interpreter.ExternFromFn("endsWith", externEndsWith),
}

Externs contains the list of standard external functions used during evaluation.