52 lines
1.3 KiB
V
52 lines
1.3 KiB
V
// Copyright (c) 2019-2021 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 Position {
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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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pub fn (pos Position) str() string {
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return 'Position{ line_nr: $pos.line_nr, last_line: $pos.last_line, pos: $pos.pos, col: $pos.col, len: $pos.len }'
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}
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pub fn (pos Position) extend(end Position) Position {
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return Position{
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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 Position) extend_with_last_line(end Position, last_line int) Position {
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return Position{
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len: end.pos - pos.pos + end.len
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line_nr: pos.line_nr
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last_line: last_line - 1
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pos: pos.pos
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col: pos.col
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}
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}
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pub fn (mut pos Position) 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) position() Position {
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return Position{
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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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