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internal/lsp/cache: clean up parse.go

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switch the ioLimit channel from a bool to a struct{} as the values
stuffed into the channel have no meaning.

A mix of consistency and comment cleanups in *importer.parseFiles.

sameFile is reported as unused, so removed, removing some now unused
imports.

The assignment to lit in *view.parseDeferOrGoStmt's for{} loop was
reported as ineffective.

Update the comment of fix a little for clarity.

Change-Id: I50f0442bfd7e4d0cc0e6fdadbf1f6272366a716c

Change-Id: I50f0442bfd7e4d0cc0e6fdadbf1f6272366a716c
GitHub-Last-Rev: 74d8a8bdb768a827db3c1fd1723a528818e222ee
GitHub-Pull-Request: golang/tools#109
Reviewed-on: https://go-review.googlesource.com/c/tools/+/179957
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This commit is contained in:
Edward Muller 2019-07-28 00:52:02 +00:00 committed by Rebecca Stambler
parent ff9f140924
commit 7deaedd405
1 changed files with 5 additions and 5 deletions
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10
internal/lsp/cache/parse.go vendored
View File

@ -18,7 +18,7 @@ import (
)
// Limits the number of parallel parser calls per process.
var parseLimit = make(chan bool, 20)
var parseLimit = make(chan struct{}, 20)
// parseKey uniquely identifies a parsed Go file.
type parseKey struct {
@ -80,7 +80,7 @@ func parseGo(ctx context.Context, c *cache, fh source.FileHandle, mode source.Pa
if err != nil {
return nil, err
}
parseLimit <- true
parseLimit <- struct{}{}
defer func() { <-parseLimit }()
parserMode := parser.AllErrors | parser.ParseComments
if mode == source.ParseHeader {
@ -140,8 +140,8 @@ func isEllipsisArray(n ast.Expr) bool {
return ok
}
// fix inspects and potentially modifies any *ast.BadStmts or *ast.BadExprs in the AST.
// We attempt to modify the AST such that we can type-check it more effectively.
// fix inspects the AST and potentially modifies any *ast.BadStmts so that it can be
// type-checked more effectively.
func fix(ctx context.Context, file *ast.File, tok *token.File, src []byte) error {
var parent ast.Node
var err error
@ -207,7 +207,7 @@ func parseDeferOrGoStmt(bad *ast.BadStmt, parent ast.Node, tok *token.File, src
var to, curr token.Pos
FindTo:
for {
curr, tkn, lit = s.Scan()
curr, tkn, _ = s.Scan()
// TODO(rstambler): This still needs more handling to work correctly.
// We encounter a specific issue with code that looks like this:
//