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compiler: fix unused import warnings

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This commit is contained in:
Delyan Angelov
2020-01-05 17:29:33 +02:00
committed by Alexander Medvednikov
parent 868d6c808b
commit c24a1b3786
5 changed files with 26 additions and 19 deletions
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19
vlib/compiler/aparser.v
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@ -103,6 +103,7 @@ const (
)
struct ParserState {
scanner_file_path string
scanner_line_nr int
scanner_text string
scanner_pos int
@ -323,6 +324,7 @@ fn (p &Parser) log(s string) {
pub fn (p &Parser) save_state() ParserState {
return ParserState{
scanner_file_path: p.scanner.file_path
scanner_line_nr: p.scanner.line_nr
scanner_text: p.scanner.text
scanner_pos: p.scanner.pos
@ -343,6 +345,7 @@ pub fn (p &Parser) save_state() ParserState {
pub fn (p mut Parser) restore_state(state ParserState, scanner bool, cgen bool) {
if scanner {
p.scanner.file_path = state.scanner_file_path
p.scanner.line_nr = state.scanner_line_nr
p.scanner.text = state.scanner_text
p.scanner.pos = state.scanner_pos
@ -390,9 +393,12 @@ pub fn (p mut Parser) add_text(text string) {
p.scan_tokens()
}
fn (p mut Parser) statements_from_text(text string, rcbr bool) {
fn (p mut Parser) statements_from_text(text string, rcbr bool, fpath string) {
saved_state := p.save_state()
p.clear_state(true, false)
if fpath != '' {
p.scanner.file_path = fpath
}
p.add_text(text)
p.next()
if rcbr {
@ -3077,7 +3083,10 @@ fn (p mut Parser) check_and_register_used_imported_type(typ_name string) {
us_idx := typ_name.index('__') or {
return
}
arg_mod := typ_name[..us_idx]
mut arg_mod := typ_name[..us_idx]
if arg_mod.contains('_dot_') {
arg_mod = arg_mod.all_after('_dot_')
}
if p.import_table.known_alias(arg_mod) {
p.import_table.register_used_import(arg_mod)
}
@ -3098,11 +3107,13 @@ fn (p mut Parser) check_unused_imports() {
if output == '' {
return
}
// the imports are usually at the start of the file
//p.production_error_with_token_index('the following imports were never used: $output', 0)
if !p.file_path.contains ('vlib/v/') {
p.warn('the following imports were never used: $output')
if p.pref.is_verbose {
eprintln('Used imports table: ${p.import_table.used_imports.str()}')
}
p.warn('the following imports were never used: $output')
}
fn (p &Parser) is_expr_fn_call(start_tok_idx int) (bool,string) {