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go/parser: remove redundant list argument to Parser.shortVarDecl

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Change-Id: I75d089a7c1c3cdd50e5d2dafdb3386620efff4c9
Reviewed-on: https://go-review.googlesource.com/c/go/+/304454
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
This commit is contained in:
Rob Findley 2021-03-22 22:31:28 -04:00 committed by Robert Findley
parent 152ca79b73
commit 1d8abb3417
1 changed files with 5 additions and 5 deletions
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10
src/go/parser/parser.go
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@ -137,12 +137,12 @@ func (p *parser) declare(decl, data interface{}, scope *ast.Scope, kind ast.ObjK
} }
} }
func (p *parser) shortVarDecl(decl *ast.AssignStmt, list []ast.Expr) { func (p *parser) shortVarDecl(decl *ast.AssignStmt) {
// Go spec: A short variable declaration may redeclare variables // Go spec: A short variable declaration may redeclare variables
// provided they were originally declared in the same block with // provided they were originally declared in the same block with
// the same type, and at least one of the non-blank variables is new. // the same type, and at least one of the non-blank variables is new.
n := 0 // number of new variables n := 0 // number of new variables
for _, x := range list { for _, x := range decl.Lhs {
if ident, isIdent := x.(*ast.Ident); isIdent { if ident, isIdent := x.(*ast.Ident); isIdent {
assert(ident.Obj == nil, "identifier already declared or resolved") assert(ident.Obj == nil, "identifier already declared or resolved")
obj := ast.NewObj(ast.Var, ident.Name) obj := ast.NewObj(ast.Var, ident.Name)
@ -161,7 +161,7 @@ func (p *parser) shortVarDecl(decl *ast.AssignStmt, list []ast.Expr) {
} }
} }
if n == 0 && p.mode&DeclarationErrors != 0 { if n == 0 && p.mode&DeclarationErrors != 0 {
p.error(list[0].Pos(), "no new variables on left side of :=") p.error(decl.Lhs[0].Pos(), "no new variables on left side of :=")
} }
} }
@ -1987,7 +1987,7 @@ func (p *parser) parseSimpleStmt(mode int) (ast.Stmt, bool) {
} }
as := &ast.AssignStmt{Lhs: x, TokPos: pos, Tok: tok, Rhs: y} as := &ast.AssignStmt{Lhs: x, TokPos: pos, Tok: tok, Rhs: y}
if tok == token.DEFINE { if tok == token.DEFINE {
p.shortVarDecl(as, x) p.shortVarDecl(as)
} }
return as, isRange return as, isRange
} }
@ -2382,7 +2382,7 @@ func (p *parser) parseCommClause() *ast.CommClause {
rhs := p.parseRhs() rhs := p.parseRhs()
as := &ast.AssignStmt{Lhs: lhs, TokPos: pos, Tok: tok, Rhs: []ast.Expr{rhs}} as := &ast.AssignStmt{Lhs: lhs, TokPos: pos, Tok: tok, Rhs: []ast.Expr{rhs}}
if tok == token.DEFINE { if tok == token.DEFINE {
p.shortVarDecl(as, lhs) p.shortVarDecl(as)
} }
comm = as comm = as
} else { } else {