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[dev.typealias] cmd/compile: recognize type aliases but complain for now (not yet supported)

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Added test file.

For #18130.

Change-Id: Ifcfd7cd1acf9dd6a2f4f3d85979d232bb6b8c6b1
Reviewed-on: https://go-review.googlesource.com/34988
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This commit is contained in:
Robert Griesemer 2016-12-16 16:28:30 -08:00
parent e0a05c274a
commit 3e11940437
6 changed files with 87 additions and 2 deletions
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3
src/cmd/compile/internal/syntax/parser.go
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@ -325,7 +325,7 @@ func (p *parser) constDecl(group *Group) Decl {
return d
}
// TypeSpec = identifier Type .
// TypeSpec = identifier [ "=" ] Type .
func (p *parser) typeDecl(group *Group) Decl {
if trace {
defer p.trace("typeDecl")()
@ -335,6 +335,7 @@ func (p *parser) typeDecl(group *Group) Decl {
d.init(p)
d.Name = p.name()
d.Alias = p.got(_Assign)
d.Type = p.tryType()
if d.Type == nil {
p.syntax_error("in type declaration")