Method parseYieldExpression

parser/expression.go:1367–1395

()

}

func (self *_parser) parseYieldExpression() ast.Expression {
	idx := self.expect(token.YIELD)

	if self.scope.inFuncParams {
		self.error(idx, "Yield expression not allowed in formal parameter")
	}

	node := &ast.YieldExpression{
		Yield: idx,
	}

	if !self.implicitSemicolon && self.token == token.MULTIPLY {
		node.Delegate = true
		self.next()
	}

	if !self.implicitSemicolon && self.token != token.SEMICOLON && self.token != token.RIGHT_BRACE && self.token != token.EOF {
		var state parserState
		self.mark(&state)
		expr := self.parseAssignmentExpression()
		if _, bad := expr.(*ast.BadExpression); bad {
			expr = nil
			self.restore(&state)
		}
		node.Argument = expr
	}

	return node
}

func (self *_parser) parseExpression() ast.Expression {
	left := self.parseAssignmentExpression()