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Diffstat (limited to 'src/pkg/go/ast/ast.go')
-rw-r--r--src/pkg/go/ast/ast.go58
1 files changed, 23 insertions, 35 deletions
diff --git a/src/pkg/go/ast/ast.go b/src/pkg/go/ast/ast.go
index abafb5663..ed3e2cdd9 100644
--- a/src/pkg/go/ast/ast.go
+++ b/src/pkg/go/ast/ast.go
@@ -66,7 +66,7 @@ type Decl interface {
// A Comment node represents a single //-style or /*-style comment.
type Comment struct {
Slash token.Pos // position of "/" starting the comment
- Text []byte // comment text (excluding '\n' for //-style comments)
+ Text string // comment text (excluding '\n' for //-style comments)
}
@@ -199,7 +199,7 @@ type (
BasicLit struct {
ValuePos token.Pos // literal position
Kind token.Token // token.INT, token.FLOAT, token.IMAG, token.CHAR, or token.STRING
- Value []byte // literal string; e.g. 42, 0x7f, 3.14, 1e-9, 2.4i, 'a', '\x7f', "foo" or `\m\n\o`
+ Value string // literal string; e.g. 42, 0x7f, 3.14, 1e-9, 2.4i, 'a', '\x7f', "foo" or `\m\n\o`
}
// A FuncLit node represents a function literal.
@@ -602,12 +602,12 @@ type (
Else Stmt // else branch; or nil
}
- // A CaseClause represents a case of an expression switch statement.
+ // A CaseClause represents a case of an expression or type switch statement.
CaseClause struct {
- Case token.Pos // position of "case" or "default" keyword
- Values []Expr // nil means default case
- Colon token.Pos // position of ":"
- Body []Stmt // statement list; or nil
+ Case token.Pos // position of "case" or "default" keyword
+ List []Expr // list of expressions or types; nil means default case
+ Colon token.Pos // position of ":"
+ Body []Stmt // statement list; or nil
}
// A SwitchStmt node represents an expression switch statement.
@@ -618,20 +618,12 @@ type (
Body *BlockStmt // CaseClauses only
}
- // A TypeCaseClause represents a case of a type switch statement.
- TypeCaseClause struct {
- Case token.Pos // position of "case" or "default" keyword
- Types []Expr // nil means default case
- Colon token.Pos // position of ":"
- Body []Stmt // statement list; or nil
- }
-
// An TypeSwitchStmt node represents a type switch statement.
TypeSwitchStmt struct {
Switch token.Pos // position of "switch" keyword
Init Stmt // initalization statement; or nil
- Assign Stmt // x := y.(type)
- Body *BlockStmt // TypeCaseClauses only
+ Assign Stmt // x := y.(type) or y.(type)
+ Body *BlockStmt // CaseClauses only
}
// A CommClause node represents a case of a select statement.
@@ -687,7 +679,6 @@ func (s *BlockStmt) Pos() token.Pos { return s.Lbrace }
func (s *IfStmt) Pos() token.Pos { return s.If }
func (s *CaseClause) Pos() token.Pos { return s.Case }
func (s *SwitchStmt) Pos() token.Pos { return s.Switch }
-func (s *TypeCaseClause) Pos() token.Pos { return s.Case }
func (s *TypeSwitchStmt) Pos() token.Pos { return s.Switch }
func (s *CommClause) Pos() token.Pos { return s.Case }
func (s *SelectStmt) Pos() token.Pos { return s.Select }
@@ -734,13 +725,7 @@ func (s *CaseClause) End() token.Pos {
}
return s.Colon + 1
}
-func (s *SwitchStmt) End() token.Pos { return s.Body.End() }
-func (s *TypeCaseClause) End() token.Pos {
- if n := len(s.Body); n > 0 {
- return s.Body[n-1].End()
- }
- return s.Colon + 1
-}
+func (s *SwitchStmt) End() token.Pos { return s.Body.End() }
func (s *TypeSwitchStmt) End() token.Pos { return s.Body.End() }
func (s *CommClause) End() token.Pos {
if n := len(s.Body); n > 0 {
@@ -772,7 +757,6 @@ func (s *BlockStmt) stmtNode() {}
func (s *IfStmt) stmtNode() {}
func (s *CaseClause) stmtNode() {}
func (s *SwitchStmt) stmtNode() {}
-func (s *TypeCaseClause) stmtNode() {}
func (s *TypeSwitchStmt) stmtNode() {}
func (s *CommClause) stmtNode() {}
func (s *SelectStmt) stmtNode() {}
@@ -797,7 +781,7 @@ type (
ImportSpec struct {
Doc *CommentGroup // associated documentation; or nil
Name *Ident // local package name (including "."); or nil
- Path *BasicLit // package path
+ Path *BasicLit // import path
Comment *CommentGroup // line comments; or nil
}
@@ -937,11 +921,14 @@ func (d *FuncDecl) declNode() {}
// via Doc and Comment fields.
//
type File struct {
- Doc *CommentGroup // associated documentation; or nil
- Package token.Pos // position of "package" keyword
- Name *Ident // package name
- Decls []Decl // top-level declarations; or nil
- Comments []*CommentGroup // list of all comments in the source file
+ Doc *CommentGroup // associated documentation; or nil
+ Package token.Pos // position of "package" keyword
+ Name *Ident // package name
+ Decls []Decl // top-level declarations; or nil
+ Scope *Scope // package scope (this file only)
+ Imports []*ImportSpec // imports in this file
+ Unresolved []*Ident // unresolved identifiers in this file
+ Comments []*CommentGroup // list of all comments in the source file
}
@@ -958,9 +945,10 @@ func (f *File) End() token.Pos {
// collectively building a Go package.
//
type Package struct {
- Name string // package name
- Scope *Scope // package scope; or nil
- Files map[string]*File // Go source files by filename
+ Name string // package name
+ Scope *Scope // package scope
+ Imports map[string]*Scope // map of import path -> package scope across all files
+ Files map[string]*File // Go source files by filename
}