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Rust checker: allow secondary spans to be ignored (#1696) 

* Rust checker: allow secondary spans to be ignored
* test/handler/test_rust_handler.vader: Add tests for g:ale_rust_ignore_secondary_spans
This commit is contained in:
Dan Aloni 2018-10-26 11:38:20 +03:00 committed by w0rp
parent 77aacf0c91
commit aa0203320b
3 changed files with 169 additions and 0 deletions
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8
autoload/ale/handlers/rust.vim
View File

@ -7,6 +7,10 @@ if !exists('g:ale_rust_ignore_error_codes')
let g:ale_rust_ignore_error_codes = []
endif
if !exists('g:ale_rust_ignore_secondary_spans')
let g:ale_rust_ignore_secondary_spans = 0
endif
function! s:FindSpan(buffer, span) abort
if ale#path#IsBufferPath(a:buffer, a:span.file_name) || a:span.file_name is# '<anon>'
return a:span
@ -47,6 +51,10 @@ function! ale#handlers#rust#HandleRustErrors(buffer, lines) abort
for l:root_span in l:error.spans
let l:span = s:FindSpan(a:buffer, l:root_span)
if ale#Var(a:buffer, 'rust_ignore_secondary_spans') && !get(l:span, 'is_primary', 1)
continue
endif
if !empty(l:span)
call add(l:output, {
\ 'lnum': l:span.line_start,

16
doc/ale-rust.txt
View File

@ -198,6 +198,22 @@ g:ale_rust_ignore_error_codes *g:ale_rust_ignore_error_codes*
>
let g:ale_rust_ignore_error_codes = ['E0432', 'E0433']
g:ale_rust_ignore_secondary_spans *g:ale_rust_ignore_secondary_spans*
*b:ale_rust_ignore_secondary_spans*
Type: Number
Default: 0
When set to 1, instructs the Rust error repporting to ignore secondary
spans. The problem with secondary spans is that they sometimes appear in
error messages before the main cause of the error, for example: >
1 src/main.rs|98 col 5 error| this function takes 4 parameters but 5
parameters were supplied: defined here
2 src/main.rs|430 col 32 error| this function takes 4 parameters but 5
parameters were supplied: expected 4 parameters
<
This is due to the sorting by line numbers. With this option set to 1,
the 'defined here' span will not be presented.
===============================================================================
rustfmt *ale-rust-rustfmt*

145
test/handler/test_rust_handler.vader
View File

@ -285,3 +285,148 @@ Execute(The Rust handler should find correct files):
\ },
\ }),
\ ])
Execute(The Rust handler should remove secondary spans if set):
call ale#test#SetFilename('src/noerrors/mod.rs')
let g:ale_rust_ignore_secondary_spans = 0
AssertEqual
\ [
\ {
\ 'lnum': 1,
\ 'end_lnum': 1,
\ 'type': 'E',
\ 'end_col': 21,
\ 'col': 1,
\ 'text': 'this function takes 1 parameter but 0 were supplied: defined here',
\ },
\ {
\ 'lnum': 1,
\ 'end_lnum': 1,
\ 'type': 'E',
\ 'end_col': 46,
\ 'col': 40,
\ 'text': 'this function takes 1 parameter but 0 were supplied: expected 1 parameter',
\ },
\ ],
\ ale#handlers#rust#HandleRustErrors(bufnr(''), [
\ '',
\ 'fn test(x: u8) -> u8 { x } fn main() { x(); }',
\ json_encode({
\ 'message': {
\ 'code': {
\ 'code': 'E0061',
\ 'explanation': 'Dummy explanation; not used'
\ },
\ 'level': 'error',
\ 'message': 'this function takes 1 parameter but 0 were supplied',
\ 'spans': [
\ {
\ 'byte_end': 20,
\ 'byte_start': 0,
\ 'column_end': 21,
\ 'column_start': 1,
\ 'file_name': 'src/noerrors/mod.rs',
\ 'is_primary': v:false,
\ 'label': 'defined here',
\ 'line_end': 1,
\ 'line_start': 1,
\ },
\ {
\ 'byte_end': 45,
\ 'byte_start': 39,
\ 'column_end': 46,
\ 'column_start': 40,
\ 'file_name': '<anon>',
\ 'is_primary': v:true,
\ 'label': 'expected 1 parameter',
\ 'line_end': 1,
\ 'line_start': 1,
\ },
\ ]
\ },
\ }),
\ json_encode({
\ 'message': {
\ 'code': v:null,
\ 'level': 'error',
\ 'message': 'aborting due to previous error',
\ 'spans': []
\ },
\ }),
\ json_encode({
\ 'message': {
\ 'code': v:null,
\ 'level': 'error',
\ 'message': 'For more information about this error, try `rustc --explain E0061`.',
\ 'spans': []
\ },
\ }),
\ ])
let g:ale_rust_ignore_secondary_spans = 1
AssertEqual
\ [
\ {
\ 'lnum': 1,
\ 'end_lnum': 1,
\ 'type': 'E',
\ 'end_col': 46,
\ 'col': 40,
\ 'text': 'this function takes 1 parameter but 0 were supplied: expected 1 parameter',
\ },
\ ],
\ ale#handlers#rust#HandleRustErrors(bufnr(''), [
\ '',
\ 'fn test(x: u8) -> u8 { x } fn main() { x(); }',
\ json_encode({
\ 'message': {
\ 'code': {
\ 'code': 'E0061',
\ 'explanation': 'Dummy explanation; not used'
\ },
\ 'level': 'error',
\ 'message': 'this function takes 1 parameter but 0 were supplied',
\ 'spans': [
\ {
\ 'byte_end': 20,
\ 'byte_start': 0,
\ 'column_end': 21,
\ 'column_start': 1,
\ 'file_name': 'src/noerrors/mod.rs',
\ 'is_primary': v:false,
\ 'label': 'defined here',
\ 'line_end': 1,
\ 'line_start': 1,
\ },
\ {
\ 'byte_end': 45,
\ 'byte_start': 39,
\ 'column_end': 46,
\ 'column_start': 40,
\ 'file_name': '<anon>',
\ 'is_primary': v:true,
\ 'label': 'expected 1 parameter',
\ 'line_end': 1,
\ 'line_start': 1,
\ },
\ ]
\ },
\ }),
\ json_encode({
\ 'message': {
\ 'code': v:null,
\ 'level': 'error',
\ 'message': 'aborting due to previous error',
\ 'spans': []
\ },
\ }),
\ json_encode({
\ 'message': {
\ 'code': v:null,
\ 'level': 'error',
\ 'message': 'For more information about this error, try `rustc --explain E0061`.',
\ 'spans': []
\ },
\ }),
\ ])