expr/operand-list.go
Celestino Amoroso 3736214c5a A lot of changes. Main ones are:
- fraction type renamed as FractionType and moved from operator-fraction.go to fraction-type.go
- ListType moved from operator-list.go to list-type.go
- all test file were renamed adding the "t_" prefix
- defined a test template in file t_temple_test.go
- new test file t_relational_test.go where relational tests are collected
- lists can now compared as set using operators <, <=, >, and >= (IMPORTANT: here = menas same content, not same list)
2024-05-28 07:26:05 +02:00

39 lines
789 B
Go

// Copyright (c) 2024 Celestino Amoroso (celestino.amoroso@gmail.com).
// All rights reserved.
// operand-list.go
package expr
// -------- list term
func newListTermA(args ...*term) *term {
return newListTerm(0, 0, args)
}
func newListTerm(row, col int, args []*term) *term {
return &term{
tk: *NewValueToken(row, col, SymList, "[]", args),
parent: nil,
children: nil,
position: posLeaf,
priority: priValue,
evalFunc: evalList,
}
}
// -------- list func
func evalList(ctx ExprContext, self *term) (v any, err error) {
list, _ := self.value().([]*term)
items := make(ListType, len(list))
for i, tree := range list {
var param any
if param, err = tree.compute(ctx); err != nil {
break
}
items[i] = param
}
if err == nil {
v = &items
}
return
}