oficina / sheets Public

Download this file

1	package calc
2
3	// Node is any expression node.
4	type Node interface{ node() }
5
6	type Num struct{ V float64 }
7	type Str struct{ V string }
8	type Bool struct{ V bool }
9
10	// Ref is a single-cell reference as written. Positions are what the source
11	// says; binding to stable ids happens in the reference pass, because
12	// relative references are positional offsets and must stay that way until
13	// a paste anchor is known.
14	type Ref struct {
15	ColPos, RowPos int
16	AbsCol, AbsRow bool
17	}
18
19	type Range struct{ From, To *Ref }
20
21	type Binary struct {
22	Op string
23	Left, Right Node
24	}
25
26	type Unary struct {
27	Op string
28	X Node
29	}
30
31	type Call struct {
32	Name string
33	Args []Node
34	}
35
36	func (*Num) node() {}
37	func (*Str) node() {}
38	func (*Bool) node() {}
39	func (*Ref) node() {}
40	func (*Range) node() {}
41	func (*Binary) node() {}
42	func (*Unary) node() {}
43	func (*Call) node() {}
44