Godeps, vendor: convert dependency management to trash (#3198)

This commit converts the dependency management from Godeps to the vendor
folder, also switching the tool from godep to trash. Since the upstream tool
lacks a few features proposed via a few PRs, until those PRs are merged in
(if), use github.com/karalabe/trash.

You can update dependencies via trash --update.

All dependencies have been updated to their latest version.

Parts of the build system are reworked to drop old notions of Godeps and
invocation of the go vet command so that it doesn't run against the vendor
folder, as that will just blow up during vetting.

The conversion drops OpenCL (and hence GPU mining support) from ethash and our
codebase. The short reasoning is that there's noone to maintain and having
opencl libs in our deps messes up builds as go install ./... tries to build
them, failing with unsatisfied link errors for the C OpenCL deps.

golang.org/x/net/context is not vendored in. We expect it to be fetched by the
user (i.e. using go get). To keep ci.go builds reproducible the package is
"vendored" in build/_vendor.

1 files changed, 938 insertions, 0 deletions

diff --git a/vendor/github.com/robertkrimen/otto/parser/statement.go b/vendor/github.com/robertkrimen/otto/parser/statement.go
new file mode 100644
index 000000000..6ff19d975
--- /dev/null
+++ b/vendor/github.com/robertkrimen/otto/parser/statement.go
@@ -0,0 +1,938 @@
+package parser
+
+import (
+	"github.com/robertkrimen/otto/ast"
+	"github.com/robertkrimen/otto/token"
+)
+
+func (self *_parser) parseBlockStatement() *ast.BlockStatement {
+	node := &ast.BlockStatement{}
+
+	// Find comments before the leading brace
+	if self.mode&StoreComments != 0 {
+		self.comments.CommentMap.AddComments(node, self.comments.FetchAll(), ast.LEADING)
+		self.comments.Unset()
+	}
+
+	node.LeftBrace = self.expect(token.LEFT_BRACE)
+	node.List = self.parseStatementList()
+
+	if self.mode&StoreComments != 0 {
+		self.comments.Unset()
+		self.comments.CommentMap.AddComments(node, self.comments.FetchAll(), ast.FINAL)
+		self.comments.AfterBlock()
+	}
+
+	node.RightBrace = self.expect(token.RIGHT_BRACE)
+
+	// Find comments after the trailing brace
+	if self.mode&StoreComments != 0 {
+		self.comments.ResetLineBreak()
+		self.comments.CommentMap.AddComments(node, self.comments.Fetch(), ast.TRAILING)
+	}
+
+	return node
+}
+
+func (self *_parser) parseEmptyStatement() ast.Statement {
+	idx := self.expect(token.SEMICOLON)
+	return &ast.EmptyStatement{Semicolon: idx}
+}
+
+func (self *_parser) parseStatementList() (list []ast.Statement) {
+	for self.token != token.RIGHT_BRACE && self.token != token.EOF {
+		statement := self.parseStatement()
+		list = append(list, statement)
+	}
+
+	return
+}
+
+func (self *_parser) parseStatement() ast.Statement {
+
+	if self.token == token.EOF {
+		self.errorUnexpectedToken(self.token)
+		return &ast.BadStatement{From: self.idx, To: self.idx + 1}
+	}
+
+	if self.mode&StoreComments != 0 {
+		self.comments.ResetLineBreak()
+	}
+
+	switch self.token {
+	case token.SEMICOLON:
+		return self.parseEmptyStatement()
+	case token.LEFT_BRACE:
+		return self.parseBlockStatement()
+	case token.IF:
+		return self.parseIfStatement()
+	case token.DO:
+		statement := self.parseDoWhileStatement()
+		self.comments.PostProcessNode(statement)
+		return statement
+	case token.WHILE:
+		return self.parseWhileStatement()
+	case token.FOR:
+		return self.parseForOrForInStatement()
+	case token.BREAK:
+		return self.parseBreakStatement()
+	case token.CONTINUE:
+		return self.parseContinueStatement()
+	case token.DEBUGGER:
+		return self.parseDebuggerStatement()
+	case token.WITH:
+		return self.parseWithStatement()
+	case token.VAR:
+		return self.parseVariableStatement()
+	case token.FUNCTION:
+		return self.parseFunctionStatement()
+	case token.SWITCH:
+		return self.parseSwitchStatement()
+	case token.RETURN:
+		return self.parseReturnStatement()
+	case token.THROW:
+		return self.parseThrowStatement()
+	case token.TRY:
+		return self.parseTryStatement()
+	}
+
+	var comments []*ast.Comment
+	if self.mode&StoreComments != 0 {
+		comments = self.comments.FetchAll()
+	}
+
+	expression := self.parseExpression()
+
+	if identifier, isIdentifier := expression.(*ast.Identifier); isIdentifier && self.token == token.COLON {
+		// LabelledStatement
+		colon := self.idx
+		if self.mode&StoreComments != 0 {
+			self.comments.Unset()
+		}
+		self.next() // :
+
+		label := identifier.Name
+		for _, value := range self.scope.labels {
+			if label == value {
+				self.error(identifier.Idx0(), "Label '%s' already exists", label)
+			}
+		}
+		var labelComments []*ast.Comment
+		if self.mode&StoreComments != 0 {
+			labelComments = self.comments.FetchAll()
+		}
+		self.scope.labels = append(self.scope.labels, label) // Push the label
+		statement := self.parseStatement()
+		self.scope.labels = self.scope.labels[:len(self.scope.labels)-1] // Pop the label
+		exp := &ast.LabelledStatement{
+			Label:     identifier,
+			Colon:     colon,
+			Statement: statement,
+		}
+		if self.mode&StoreComments != 0 {
+			self.comments.CommentMap.AddComments(exp, labelComments, ast.LEADING)
+		}
+
+		return exp
+	}
+
+	self.optionalSemicolon()
+
+	statement := &ast.ExpressionStatement{
+		Expression: expression,
+	}
+
+	if self.mode&StoreComments != 0 {
+		self.comments.CommentMap.AddComments(statement, comments, ast.LEADING)
+	}
+	return statement
+}
+
+func (self *_parser) parseTryStatement() ast.Statement {
+	var tryComments []*ast.Comment
+	if self.mode&StoreComments != 0 {
+		tryComments = self.comments.FetchAll()
+	}
+	node := &ast.TryStatement{
+		Try:  self.expect(token.TRY),
+		Body: self.parseBlockStatement(),
+	}
+	if self.mode&StoreComments != 0 {
+		self.comments.CommentMap.AddComments(node, tryComments, ast.LEADING)
+		self.comments.CommentMap.AddComments(node.Body, self.comments.FetchAll(), ast.TRAILING)
+	}
+
+	if self.token == token.CATCH {
+		catch := self.idx
+		if self.mode&StoreComments != 0 {
+			self.comments.Unset()
+		}
+		self.next()
+		self.expect(token.LEFT_PARENTHESIS)
+		if self.token != token.IDENTIFIER {
+			self.expect(token.IDENTIFIER)
+			self.nextStatement()
+			return &ast.BadStatement{From: catch, To: self.idx}
+		} else {
+			identifier := self.parseIdentifier()
+			self.expect(token.RIGHT_PARENTHESIS)
+			node.Catch = &ast.CatchStatement{
+				Catch:     catch,
+				Parameter: identifier,
+				Body:      self.parseBlockStatement(),
+			}
+
+			if self.mode&StoreComments != 0 {
+				self.comments.CommentMap.AddComments(node.Catch.Body, self.comments.FetchAll(), ast.TRAILING)
+			}
+		}
+	}
+
+	if self.token == token.FINALLY {
+		if self.mode&StoreComments != 0 {
+			self.comments.Unset()
+		}
+		self.next()
+		if self.mode&StoreComments != 0 {
+			tryComments = self.comments.FetchAll()
+		}
+
+		node.Finally = self.parseBlockStatement()
+
+		if self.mode&StoreComments != 0 {
+			self.comments.CommentMap.AddComments(node.Finally, tryComments, ast.LEADING)
+		}
+	}
+
+	if node.Catch == nil && node.Finally == nil {
+		self.error(node.Try, "Missing catch or finally after try")
+		return &ast.BadStatement{From: node.Try, To: node.Body.Idx1()}
+	}
+
+	return node
+}
+
+func (self *_parser) parseFunctionParameterList() *ast.ParameterList {
+	opening := self.expect(token.LEFT_PARENTHESIS)
+	if self.mode&StoreComments != 0 {
+		self.comments.Unset()
+	}
+	var list []*ast.Identifier
+	for self.token != token.RIGHT_PARENTHESIS && self.token != token.EOF {
+		if self.token != token.IDENTIFIER {
+			self.expect(token.IDENTIFIER)
+		} else {
+			identifier := self.parseIdentifier()
+			list = append(list, identifier)
+		}
+		if self.token != token.RIGHT_PARENTHESIS {
+			if self.mode&StoreComments != 0 {
+				self.comments.Unset()
+			}
+			self.expect(token.COMMA)
+		}
+	}
+	closing := self.expect(token.RIGHT_PARENTHESIS)
+
+	return &ast.ParameterList{
+		Opening: opening,
+		List:    list,
+		Closing: closing,
+	}
+}
+
+func (self *_parser) parseParameterList() (list []string) {
+	for self.token != token.EOF {
+		if self.token != token.IDENTIFIER {
+			self.expect(token.IDENTIFIER)
+		}
+		list = append(list, self.literal)
+		self.next()
+		if self.token != token.EOF {
+			self.expect(token.COMMA)
+		}
+	}
+	return
+}
+
+func (self *_parser) parseFunctionStatement() *ast.FunctionStatement {
+	var comments []*ast.Comment
+	if self.mode&StoreComments != 0 {
+		comments = self.comments.FetchAll()
+	}
+	function := &ast.FunctionStatement{
+		Function: self.parseFunction(true),
+	}
+	if self.mode&StoreComments != 0 {
+		self.comments.CommentMap.AddComments(function, comments, ast.LEADING)
+	}
+
+	return function
+}
+
+func (self *_parser) parseFunction(declaration bool) *ast.FunctionLiteral {
+
+	node := &ast.FunctionLiteral{
+		Function: self.expect(token.FUNCTION),
+	}
+
+	var name *ast.Identifier
+	if self.token == token.IDENTIFIER {
+		name = self.parseIdentifier()
+		if declaration {
+			self.scope.declare(&ast.FunctionDeclaration{
+				Function: node,
+			})
+		}
+	} else if declaration {
+		// Use expect error handling
+		self.expect(token.IDENTIFIER)
+	}
+	if self.mode&StoreComments != 0 {
+		self.comments.Unset()
+	}
+	node.Name = name
+	node.ParameterList = self.parseFunctionParameterList()
+	self.parseFunctionBlock(node)
+	node.Source = self.slice(node.Idx0(), node.Idx1())
+
+	return node
+}
+
+func (self *_parser) parseFunctionBlock(node *ast.FunctionLiteral) {
+	{
+		self.openScope()
+		inFunction := self.scope.inFunction
+		self.scope.inFunction = true
+		defer func() {
+			self.scope.inFunction = inFunction
+			self.closeScope()
+		}()
+		node.Body = self.parseBlockStatement()
+		node.DeclarationList = self.scope.declarationList
+	}
+}
+
+func (self *_parser) parseDebuggerStatement() ast.Statement {
+	idx := self.expect(token.DEBUGGER)
+
+	node := &ast.DebuggerStatement{
+		Debugger: idx,
+	}
+	if self.mode&StoreComments != 0 {
+		self.comments.CommentMap.AddComments(node, self.comments.FetchAll(), ast.TRAILING)
+	}
+
+	self.semicolon()
+	return node
+}
+
+func (self *_parser) parseReturnStatement() ast.Statement {
+	idx := self.expect(token.RETURN)
+	var comments []*ast.Comment
+	if self.mode&StoreComments != 0 {
+		comments = self.comments.FetchAll()
+	}
+
+	if !self.scope.inFunction {
+		self.error(idx, "Illegal return statement")
+		self.nextStatement()
+		return &ast.BadStatement{From: idx, To: self.idx}
+	}
+
+	node := &ast.ReturnStatement{
+		Return: idx,
+	}
+
+	if !self.implicitSemicolon && self.token != token.SEMICOLON && self.token != token.RIGHT_BRACE && self.token != token.EOF {
+		node.Argument = self.parseExpression()
+	}
+	if self.mode&StoreComments != 0 {
+		self.comments.CommentMap.AddComments(node, comments, ast.LEADING)
+	}
+
+	self.semicolon()
+
+	return node
+}
+
+func (self *_parser) parseThrowStatement() ast.Statement {
+	var comments []*ast.Comment
+	if self.mode&StoreComments != 0 {
+		comments = self.comments.FetchAll()
+	}
+	idx := self.expect(token.THROW)
+
+	if self.implicitSemicolon {
+		if self.chr == -1 { // Hackish
+			self.error(idx, "Unexpected end of input")
+		} else {
+			self.error(idx, "Illegal newline after throw")
+		}
+		self.nextStatement()
+		return &ast.BadStatement{From: idx, To: self.idx}
+	}
+
+	node := &ast.ThrowStatement{
+		Argument: self.parseExpression(),
+	}
+	if self.mode&StoreComments != 0 {
+		self.comments.CommentMap.AddComments(node, comments, ast.LEADING)
+	}
+
+	self.semicolon()
+
+	return node
+}
+
+func (self *_parser) parseSwitchStatement() ast.Statement {
+	var comments []*ast.Comment
+	if self.mode&StoreComments != 0 {
+		comments = self.comments.FetchAll()
+	}
+	self.expect(token.SWITCH)
+	if self.mode&StoreComments != 0 {
+		comments = append(comments, self.comments.FetchAll()...)
+	}
+	self.expect(token.LEFT_PARENTHESIS)
+	node := &ast.SwitchStatement{
+		Discriminant: self.parseExpression(),
+		Default:      -1,
+	}
+	self.expect(token.RIGHT_PARENTHESIS)
+	if self.mode&StoreComments != 0 {
+		comments = append(comments, self.comments.FetchAll()...)
+	}
+
+	self.expect(token.LEFT_BRACE)
+
+	inSwitch := self.scope.inSwitch
+	self.scope.inSwitch = true
+	defer func() {
+		self.scope.inSwitch = inSwitch
+	}()
+
+	for index := 0; self.token != token.EOF; index++ {
+		if self.token == token.RIGHT_BRACE {
+			self.next()
+			break
+		}
+
+		clause := self.parseCaseStatement()
+		if clause.Test == nil {
+			if node.Default != -1 {
+				self.error(clause.Case, "Already saw a default in switch")
+			}
+			node.Default = index
+		}
+		node.Body = append(node.Body, clause)
+	}
+
+	if self.mode&StoreComments != 0 {
+		self.comments.CommentMap.AddComments(node, comments, ast.LEADING)
+	}
+
+	return node
+}
+
+func (self *_parser) parseWithStatement() ast.Statement {
+	var comments []*ast.Comment
+	if self.mode&StoreComments != 0 {
+		comments = self.comments.FetchAll()
+	}
+	self.expect(token.WITH)
+	var withComments []*ast.Comment
+	if self.mode&StoreComments != 0 {
+		withComments = self.comments.FetchAll()
+	}
+
+	self.expect(token.LEFT_PARENTHESIS)
+
+	node := &ast.WithStatement{
+		Object: self.parseExpression(),
+	}
+	self.expect(token.RIGHT_PARENTHESIS)
+
+	if self.mode&StoreComments != 0 {
+		//comments = append(comments, self.comments.FetchAll()...)
+		self.comments.CommentMap.AddComments(node, comments, ast.LEADING)
+		self.comments.CommentMap.AddComments(node, withComments, ast.WITH)
+	}
+
+	node.Body = self.parseStatement()
+
+	return node
+}
+
+func (self *_parser) parseCaseStatement() *ast.CaseStatement {
+	node := &ast.CaseStatement{
+		Case: self.idx,
+	}
+
+	var comments []*ast.Comment
+	if self.mode&StoreComments != 0 {
+		comments = self.comments.FetchAll()
+		self.comments.Unset()
+	}
+
+	if self.token == token.DEFAULT {
+		self.next()
+	} else {
+		self.expect(token.CASE)
+		node.Test = self.parseExpression()
+	}
+
+	if self.mode&StoreComments != 0 {
+		self.comments.Unset()
+	}
+	self.expect(token.COLON)
+
+	for {
+		if self.token == token.EOF ||
+			self.token == token.RIGHT_BRACE ||
+			self.token == token.CASE ||
+			self.token == token.DEFAULT {
+			break
+		}
+		consequent := self.parseStatement()
+		node.Consequent = append(node.Consequent, consequent)
+	}
+
+	// Link the comments to the case statement
+	if self.mode&StoreComments != 0 {
+		self.comments.CommentMap.AddComments(node, comments, ast.LEADING)
+	}
+
+	return node
+}
+
+func (self *_parser) parseIterationStatement() ast.Statement {
+	inIteration := self.scope.inIteration
+	self.scope.inIteration = true
+	defer func() {
+		self.scope.inIteration = inIteration
+	}()
+	return self.parseStatement()
+}
+
+func (self *_parser) parseForIn(into ast.Expression) *ast.ForInStatement {
+
+	// Already have consumed "<into> in"
+
+	source := self.parseExpression()
+	self.expect(token.RIGHT_PARENTHESIS)
+	body := self.parseIterationStatement()
+
+	forin := &ast.ForInStatement{
+		Into:   into,
+		Source: source,
+		Body:   body,
+	}
+
+	return forin
+}
+
+func (self *_parser) parseFor(initializer ast.Expression) *ast.ForStatement {
+
+	// Already have consumed "<initializer> ;"
+
+	var test, update ast.Expression
+
+	if self.token != token.SEMICOLON {
+		test = self.parseExpression()
+	}
+	if self.mode&StoreComments != 0 {
+		self.comments.Unset()
+	}
+	self.expect(token.SEMICOLON)
+
+	if self.token != token.RIGHT_PARENTHESIS {
+		update = self.parseExpression()
+	}
+	self.expect(token.RIGHT_PARENTHESIS)
+	body := self.parseIterationStatement()
+
+	forstatement := &ast.ForStatement{
+		Initializer: initializer,
+		Test:        test,
+		Update:      update,
+		Body:        body,
+	}
+
+	return forstatement
+}
+
+func (self *_parser) parseForOrForInStatement() ast.Statement {
+	var comments []*ast.Comment
+	if self.mode&StoreComments != 0 {
+		comments = self.comments.FetchAll()
+	}
+	idx := self.expect(token.FOR)
+	var forComments []*ast.Comment
+	if self.mode&StoreComments != 0 {
+		forComments = self.comments.FetchAll()
+	}
+	self.expect(token.LEFT_PARENTHESIS)
+
+	var left []ast.Expression
+
+	forIn := false
+	if self.token != token.SEMICOLON {
+
+		allowIn := self.scope.allowIn
+		self.scope.allowIn = false
+		if self.token == token.VAR {
+			var_ := self.idx
+			var varComments []*ast.Comment
+			if self.mode&StoreComments != 0 {
+				varComments = self.comments.FetchAll()
+				self.comments.Unset()
+			}
+			self.next()
+			list := self.parseVariableDeclarationList(var_)
+			if len(list) == 1 && self.token == token.IN {
+				if self.mode&StoreComments != 0 {
+					self.comments.Unset()
+				}
+				self.next() // in
+				forIn = true
+				left = []ast.Expression{list[0]} // There is only one declaration
+			} else {
+				left = list
+			}
+			if self.mode&StoreComments != 0 {
+				self.comments.CommentMap.AddComments(left[0], varComments, ast.LEADING)
+			}
+		} else {
+			left = append(left, self.parseExpression())
+			if self.token == token.IN {
+				self.next()
+				forIn = true
+			}
+		}
+		self.scope.allowIn = allowIn
+	}
+
+	if forIn {
+		switch left[0].(type) {
+		case *ast.Identifier, *ast.DotExpression, *ast.BracketExpression, *ast.VariableExpression:
+			// These are all acceptable
+		default:
+			self.error(idx, "Invalid left-hand side in for-in")
+			self.nextStatement()
+			return &ast.BadStatement{From: idx, To: self.idx}
+		}
+
+		forin := self.parseForIn(left[0])
+		if self.mode&StoreComments != 0 {
+			self.comments.CommentMap.AddComments(forin, comments, ast.LEADING)
+			self.comments.CommentMap.AddComments(forin, forComments, ast.FOR)
+		}
+		return forin
+	}
+
+	if self.mode&StoreComments != 0 {
+		self.comments.Unset()
+	}
+	self.expect(token.SEMICOLON)
+	initializer := &ast.SequenceExpression{Sequence: left}
+	forstatement := self.parseFor(initializer)
+	if self.mode&StoreComments != 0 {
+		self.comments.CommentMap.AddComments(forstatement, comments, ast.LEADING)
+		self.comments.CommentMap.AddComments(forstatement, forComments, ast.FOR)
+	}
+	return forstatement
+}
+
+func (self *_parser) parseVariableStatement() *ast.VariableStatement {
+	var comments []*ast.Comment
+	if self.mode&StoreComments != 0 {
+		comments = self.comments.FetchAll()
+	}
+	idx := self.expect(token.VAR)
+
+	list := self.parseVariableDeclarationList(idx)
+
+	statement := &ast.VariableStatement{
+		Var:  idx,
+		List: list,
+	}
+	if self.mode&StoreComments != 0 {
+		self.comments.CommentMap.AddComments(statement, comments, ast.LEADING)
+		self.comments.Unset()
+	}
+	self.semicolon()
+
+	return statement
+}
+
+func (self *_parser) parseDoWhileStatement() ast.Statement {
+	inIteration := self.scope.inIteration
+	self.scope.inIteration = true
+	defer func() {
+		self.scope.inIteration = inIteration
+	}()
+
+	var comments []*ast.Comment
+	if self.mode&StoreComments != 0 {
+		comments = self.comments.FetchAll()
+	}
+	self.expect(token.DO)
+	var doComments []*ast.Comment
+	if self.mode&StoreComments != 0 {
+		doComments = self.comments.FetchAll()
+	}
+
+	node := &ast.DoWhileStatement{}
+	if self.token == token.LEFT_BRACE {
+		node.Body = self.parseBlockStatement()
+	} else {
+		node.Body = self.parseStatement()
+	}
+
+	self.expect(token.WHILE)
+	var whileComments []*ast.Comment
+	if self.mode&StoreComments != 0 {
+		whileComments = self.comments.FetchAll()
+	}
+	self.expect(token.LEFT_PARENTHESIS)
+	node.Test = self.parseExpression()
+	self.expect(token.RIGHT_PARENTHESIS)
+
+	if self.mode&StoreComments != 0 {
+		self.comments.CommentMap.AddComments(node, comments, ast.LEADING)
+		self.comments.CommentMap.AddComments(node, doComments, ast.DO)
+		self.comments.CommentMap.AddComments(node, whileComments, ast.WHILE)
+	}
+
+	return node
+}
+
+func (self *_parser) parseWhileStatement() ast.Statement {
+	var comments []*ast.Comment
+	if self.mode&StoreComments != 0 {
+		comments = self.comments.FetchAll()
+	}
+	self.expect(token.WHILE)
+
+	var whileComments []*ast.Comment
+	if self.mode&StoreComments != 0 {
+		whileComments = self.comments.FetchAll()
+	}
+
+	self.expect(token.LEFT_PARENTHESIS)
+	node := &ast.WhileStatement{
+		Test: self.parseExpression(),
+	}
+	self.expect(token.RIGHT_PARENTHESIS)
+	node.Body = self.parseIterationStatement()
+
+	if self.mode&StoreComments != 0 {
+		self.comments.CommentMap.AddComments(node, comments, ast.LEADING)
+		self.comments.CommentMap.AddComments(node, whileComments, ast.WHILE)
+	}
+
+	return node
+}
+
+func (self *_parser) parseIfStatement() ast.Statement {
+	var comments []*ast.Comment
+	if self.mode&StoreComments != 0 {
+		comments = self.comments.FetchAll()
+	}
+	self.expect(token.IF)
+	var ifComments []*ast.Comment
+	if self.mode&StoreComments != 0 {
+		ifComments = self.comments.FetchAll()
+	}
+
+	self.expect(token.LEFT_PARENTHESIS)
+	node := &ast.IfStatement{
+		Test: self.parseExpression(),
+	}
+	self.expect(token.RIGHT_PARENTHESIS)
+	if self.token == token.LEFT_BRACE {
+		node.Consequent = self.parseBlockStatement()
+	} else {
+		node.Consequent = self.parseStatement()
+	}
+
+	if self.token == token.ELSE {
+		self.next()
+		node.Alternate = self.parseStatement()
+	}
+
+	if self.mode&StoreComments != 0 {
+		self.comments.CommentMap.AddComments(node, comments, ast.LEADING)
+		self.comments.CommentMap.AddComments(node, ifComments, ast.IF)
+	}
+
+	return node
+}
+
+func (self *_parser) parseSourceElement() ast.Statement {
+	statement := self.parseStatement()
+	//self.comments.Unset()
+	return statement
+}
+
+func (self *_parser) parseSourceElements() []ast.Statement {
+	body := []ast.Statement(nil)
+
+	for {
+		if self.token != token.STRING {
+			break
+		}
+		body = append(body, self.parseSourceElement())
+	}
+
+	for self.token != token.EOF {
+		body = append(body, self.parseSourceElement())
+	}
+
+	return body
+}
+
+func (self *_parser) parseProgram() *ast.Program {
+	self.openScope()
+	defer self.closeScope()
+	return &ast.Program{
+		Body:            self.parseSourceElements(),
+		DeclarationList: self.scope.declarationList,
+		File:            self.file,
+	}
+}
+
+func (self *_parser) parseBreakStatement() ast.Statement {
+	var comments []*ast.Comment
+	if self.mode&StoreComments != 0 {
+		comments = self.comments.FetchAll()
+	}
+	idx := self.expect(token.BREAK)
+	semicolon := self.implicitSemicolon
+	if self.token == token.SEMICOLON {
+		semicolon = true
+		self.next()
+	}
+
+	if semicolon || self.token == token.RIGHT_BRACE {
+		self.implicitSemicolon = false
+		if !self.scope.inIteration && !self.scope.inSwitch {
+			goto illegal
+		}
+		breakStatement := &ast.BranchStatement{
+			Idx:   idx,
+			Token: token.BREAK,
+		}
+
+		if self.mode&StoreComments != 0 {
+			self.comments.CommentMap.AddComments(breakStatement, comments, ast.LEADING)
+			self.comments.CommentMap.AddComments(breakStatement, self.comments.FetchAll(), ast.TRAILING)
+		}
+
+		return breakStatement
+	}
+
+	if self.token == token.IDENTIFIER {
+		identifier := self.parseIdentifier()
+		if !self.scope.hasLabel(identifier.Name) {
+			self.error(idx, "Undefined label '%s'", identifier.Name)
+			return &ast.BadStatement{From: idx, To: identifier.Idx1()}
+		}
+		self.semicolon()
+		breakStatement := &ast.BranchStatement{
+			Idx:   idx,
+			Token: token.BREAK,
+			Label: identifier,
+		}
+		if self.mode&StoreComments != 0 {
+			self.comments.CommentMap.AddComments(breakStatement, comments, ast.LEADING)
+		}
+
+		return breakStatement
+	}
+
+	self.expect(token.IDENTIFIER)
+
+illegal:
+	self.error(idx, "Illegal break statement")
+	self.nextStatement()
+	return &ast.BadStatement{From: idx, To: self.idx}
+}
+
+func (self *_parser) parseContinueStatement() ast.Statement {
+	idx := self.expect(token.CONTINUE)
+	semicolon := self.implicitSemicolon
+	if self.token == token.SEMICOLON {
+		semicolon = true
+		self.next()
+	}
+
+	if semicolon || self.token == token.RIGHT_BRACE {
+		self.implicitSemicolon = false
+		if !self.scope.inIteration {
+			goto illegal
+		}
+		return &ast.BranchStatement{
+			Idx:   idx,
+			Token: token.CONTINUE,
+		}
+	}
+
+	if self.token == token.IDENTIFIER {
+		identifier := self.parseIdentifier()
+		if !self.scope.hasLabel(identifier.Name) {
+			self.error(idx, "Undefined label '%s'", identifier.Name)
+			return &ast.BadStatement{From: idx, To: identifier.Idx1()}
+		}
+		if !self.scope.inIteration {
+			goto illegal
+		}
+		self.semicolon()
+		return &ast.BranchStatement{
+			Idx:   idx,
+			Token: token.CONTINUE,
+			Label: identifier,
+		}
+	}
+
+	self.expect(token.IDENTIFIER)
+
+illegal:
+	self.error(idx, "Illegal continue statement")
+	self.nextStatement()
+	return &ast.BadStatement{From: idx, To: self.idx}
+}
+
+// Find the next statement after an error (recover)
+func (self *_parser) nextStatement() {
+	for {
+		switch self.token {
+		case token.BREAK, token.CONTINUE,
+			token.FOR, token.IF, token.RETURN, token.SWITCH,
+			token.VAR, token.DO, token.TRY, token.WITH,
+			token.WHILE, token.THROW, token.CATCH, token.FINALLY:
+			// Return only if parser made some progress since last
+			// sync or if it has not reached 10 next calls without
+			// progress. Otherwise consume at least one token to
+			// avoid an endless parser loop
+			if self.idx == self.recover.idx && self.recover.count < 10 {
+				self.recover.count++
+				return
+			}
+			if self.idx > self.recover.idx {
+				self.recover.idx = self.idx
+				self.recover.count = 0
+				return
+			}
+			// Reaching here indicates a parser bug, likely an
+			// incorrect token list in this function, but it only
+			// leads to skipping of possibly correct code if a
+			// previous error is present, and thus is preferred
+			// over a non-terminating parse.
+		case token.EOF:
+			return
+		}
+		self.next()
+	}
+}