diff --git a/defer_statement/demo3.go b/defer_statement/demo3.go new file mode 100644 index 0000000..11327b0 --- /dev/null +++ b/defer_statement/demo3.go @@ -0,0 +1,60 @@ +/** + +defer statement - the place of defer is important - product name and price - and log implemented + +BSD 3-Clause License + +Copyright (c) 2024 Mass Collaboration Labs and contributors + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + +1. Redistributions of source code must retain the above copyright notice, this + list of conditions and the following disclaimer. + +2. Redistributions in binary form must reproduce the above copyright notice, + this list of conditions and the following disclaimer in the documentation + and/or other materials provided with the distribution. + +3. Neither the name of the copyright holder nor the names of its + contributors may be used to endorse or promote products derived from + this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" +AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE +FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER +CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + + **/ +package defer_statement + +import "fmt" + +type product struct{ + productName string + unitPrice int +} + +func (p product) save(){ + fmt.Println("Product saved : ", p.productName ) + Log() +} + +func Demo3(){ + p:= product{productName:"Laptop", unitPrice:5000} + defer p.save() //defer place is important so if we put defer above "Mouse then we can't see mouse" + p = product{productName:"Mouse", unitPrice:45} + + fmt.Println("Success!") + fmt.Println(p.productName) // we are able to see "mouse" +} + +func Log(){ + fmt.Println("Saved log") +} diff --git a/defer_statement/demo3.go~ b/defer_statement/demo3.go~ new file mode 100644 index 0000000..4ece1f0 --- /dev/null +++ b/defer_statement/demo3.go~ @@ -0,0 +1,19 @@ +package defer_statement + +import "fmt" + +type product struct{ + productName string + unitPrice int +} + +func (p product) save(){ + fmt.Println("Product saved : ", p.productName ) +} + +func Demo3(){ + p:= product{productName:"Laptop", unitPrice:5000} + p.save() + fmt.Println("Success!") + +}