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compiler: stage 1 of printing shortened commit on v --version

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This commit is contained in:
Delyan Angelov
2019-09-10 23:08:48 +03:00
committed by Alexander Medvednikov
parent 03b3278369
commit 08262b5c43
3 changed files with 26 additions and 5 deletions
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2
compiler/scanner.v
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@@ -401,6 +401,7 @@ fn (s mut Scanner) scan() ScanRes {
// @FILE => will be substituted with the path of the V source file
// @LINE => will be substituted with the V line number where it appears (as a string).
// @COLUMN => will be substituted with the column where it appears (as a string).
// @VHASH => will be substituted with the shortened commit hash of the V compiler (as a string).
// This allows things like this:
// println( 'file: ' + @FILE + ' | line: ' + @LINE + ' | fn: ' + @FN)
// ... which is useful while debugging/tracing
@@ -408,6 +409,7 @@ fn (s mut Scanner) scan() ScanRes {
if name == 'FILE' { return scan_res(.str, os.realpath(s.file_path)) }
if name == 'LINE' { return scan_res(.str, (s.line_nr+1).str()) }
if name == 'COLUMN' { return scan_res(.str, (s.current_column()).str()) }
if name == 'VHASH' { return scan_res(.str, vhash()) }
if !is_key(name) {
s.error('@ must be used before keywords (e.g. `@type string`)')
}