Struct ForExpr

hclsyntax/expression.go:1375–1390

ForExpr represents iteration constructs: tuple = [for i, v in list: upper(v) if i > 2] object = {for k, v in map: k => upper(v)} object_of_tuples = {for v in list: v.key: v...}

//	object = {for k, v in map: k => upper(v)}
//	object_of_tuples = {for v in list: v.key: v...}
type ForExpr struct {
	KeyVar string // empty if ignoring the key
	ValVar string

	CollExpr Expression

	KeyExpr  Expression // nil when producing a tuple
	ValExpr  Expression
	CondExpr Expression // null if no "if" clause is present

	Group bool // set if the ellipsis is used on the value in an object for

	SrcRange   hcl.Range
	OpenRange  hcl.Range
	CloseRange hcl.Range
}

func (e *ForExpr) Value(ctx *hcl.EvalContext) (cty.Value, hcl.Diagnostics) {
	var diags hcl.Diagnostics