56 lines
1.3 KiB
V
56 lines
1.3 KiB
V
// Copyright (c) 2019-2022 Alexander Medvednikov. All rights reserved.
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// Use of this source code is governed by an MIT license
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// that can be found in the LICENSE file.
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module token
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pub struct Pos {
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pub:
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len int // length of the literal in the source
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line_nr int // the line number in the source where the token occured
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pos int // the position of the token in scanner text
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col int // the column in the source where the token occured
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pub mut:
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last_line int // the line number where the ast object ends (used by vfmt)
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}
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[unsafe]
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pub fn (mut p Pos) free() {
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}
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pub fn (p Pos) line_str() string {
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return '{l: ${p.line_nr + 1:5}, c: ${p.col:3}, p: ${p.pos:5}, ll: ${p.last_line + 1:5}}'
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}
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pub fn (pos Pos) extend(end Pos) Pos {
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return Pos{
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...pos
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len: end.pos - pos.pos + end.len
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last_line: end.last_line
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}
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}
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pub fn (pos Pos) extend_with_last_line(end Pos, last_line int) Pos {
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return Pos{
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len: end.pos - pos.pos + end.len
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line_nr: pos.line_nr
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pos: pos.pos
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col: pos.col
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last_line: last_line - 1
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}
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}
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pub fn (mut pos Pos) update_last_line(last_line int) {
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pos.last_line = last_line - 1
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}
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[inline]
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pub fn (tok &Token) pos() Pos {
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return Pos{
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len: tok.len
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line_nr: tok.line_nr - 1
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pos: tok.pos
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last_line: tok.line_nr - 1
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col: tok.col - 1
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}
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}
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