Method parseBreakStatement

parser/statement.go:960–1000

()

}

func (self *_parser) parseBreakStatement() ast.Statement {
	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
		}
		return &ast.BranchStatement{
			Idx:   idx,
			Token: token.BREAK,
		}
	}

	self.tokenToBindingId()
	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()
		return &ast.BranchStatement{
			Idx:   idx,
			Token: token.BREAK,
			Label: identifier,
		}
	}

	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)