To set breakpoints and step through code using the Go debugger (delve), you can follow these steps:
Install delve: First, you need to install delve on your system. You can use the following command to install delve:
go get -u github.com/go-delve/delve/cmd/dlv
Build your Go code: Build your Go code with debugging symbols enabled. For example, if your main package is in the main.go file, you can build it like this:
go build -gcflags="all=-N -l" -o <output_file_name> main.go
Start the debugger: You can start the Go debugger by running the delve command followed by the path to the executable created in the previous step. For example:
dlv exec <output_file_name>
Set breakpoints: Once the debugger starts, you can set breakpoints at specific lines or functions. Use the break command followed by the location where you want to set the breakpoint. For example:
break main.main // Set a breakpoint at the main function
break main.go:10 // Set a breakpoint at line 10 of main.go
Start debugging: To start the debugging process, use the continue command. This will run your program until it hits a breakpoint or finishes execution. For example:
continue
Step through code: Once the program hits a breakpoint, you can step through the code using various commands. Some common commands are:
next: Step over to the next line.step: Step into the next function call.print <variable>: Print the value of a variable.list: Show the source code around the current execution point.quit: Exit the debugger.You can use these commands to navigate through your code and inspect variables as needed.
These are the basic steps to set breakpoints and step through code using the Go debugger (delve). Delve offers many more features, such as attaching to running processes and remote debugging, which you can explore in the delve documentation.