Merge pull request #4854 from jfromaniello/add_signum_interpolation
Add signum interpolation function
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commit
4edf782260
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@ -39,6 +39,7 @@ func Funcs() map[string]ast.Function {
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"length": interpolationFuncLength(),
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"length": interpolationFuncLength(),
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"lower": interpolationFuncLower(),
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"lower": interpolationFuncLower(),
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"replace": interpolationFuncReplace(),
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"replace": interpolationFuncReplace(),
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"signum": interpolationFuncSignum(),
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"split": interpolationFuncSplit(),
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"split": interpolationFuncSplit(),
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"sha1": interpolationFuncSha1(),
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"sha1": interpolationFuncSha1(),
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"sha256": interpolationFuncSha256(),
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"sha256": interpolationFuncSha256(),
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@ -405,6 +406,25 @@ func interpolationFuncLength() ast.Function {
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}
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}
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}
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}
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func interpolationFuncSignum() ast.Function {
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return ast.Function{
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ArgTypes: []ast.Type{ast.TypeInt},
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ReturnType: ast.TypeInt,
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Variadic: false,
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Callback: func(args []interface{}) (interface{}, error) {
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num := args[0].(int)
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switch {
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case num < 0:
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return -1, nil
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case num > 0:
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return +1, nil
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default:
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return 0, nil
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}
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},
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}
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}
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// interpolationFuncSplit implements the "split" function that allows
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// interpolationFuncSplit implements the "split" function that allows
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// strings to split into multi-variable values
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// strings to split into multi-variable values
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func interpolationFuncSplit() ast.Function {
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func interpolationFuncSplit() ast.Function {
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@ -543,6 +543,42 @@ func TestInterpolateFuncLength(t *testing.T) {
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})
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})
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}
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}
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func TestInterpolateFuncSignum(t *testing.T) {
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testFunction(t, testFunctionConfig{
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Cases: []testFunctionCase{
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{
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`${signum()}`,
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nil,
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true,
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},
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{
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`${signum("")}`,
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nil,
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true,
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},
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{
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`${signum(0)}`,
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"0",
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false,
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},
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{
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`${signum(15)}`,
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"1",
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false,
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},
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{
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`${signum(-29)}`,
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"-1",
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false,
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},
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},
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})
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}
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func TestInterpolateFuncSplit(t *testing.T) {
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func TestInterpolateFuncSplit(t *testing.T) {
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testFunction(t, testFunctionConfig{
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testFunction(t, testFunctionConfig{
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Cases: []testFunctionCase{
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Cases: []testFunctionCase{
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@ -173,6 +173,11 @@ The supported built-in functions are:
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`n` is the index or name of the subcapture. If using a regular expression,
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`n` is the index or name of the subcapture. If using a regular expression,
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the syntax conforms to the [re2 regular expression syntax](https://code.google.com/p/re2/wiki/Syntax).
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the syntax conforms to the [re2 regular expression syntax](https://code.google.com/p/re2/wiki/Syntax).
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* `signum(int)` - Returns -1 for negative numbers, 0 for 0 and 1 for positive numbers.
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This function is useful when you need to set a value for the first resource and
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a different value for the rest of the resources.
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Example: `element(split(",", var.r53_failover_policy), signum(count.index))`
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* `split(delim, string)` - Splits the string previously created by `join`
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* `split(delim, string)` - Splits the string previously created by `join`
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back into a list. This is useful for pushing lists through module
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back into a list. This is useful for pushing lists through module
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outputs since they currently only support string values. Depending on the
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outputs since they currently only support string values. Depending on the
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