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//go:build codegen
// +build codegen
package api
import (
"fmt"
"io"
"sync"
)
var debugLogger *logger
var initDebugLoggerOnce sync.Once
// logger provides a basic logging
type logger struct {
w io.Writer
}
// LogDebug initialize's the debug logger for the components in the api
// package to log debug lines to.
//
// Panics if called multiple times.
//
// Must be used prior to any model loading or code gen.
func LogDebug(w io.Writer) {
var initialized bool
initDebugLoggerOnce.Do(func() {
debugLogger = &logger{
w: w,
}
initialized = true
})
if !initialized && debugLogger != nil {
panic("LogDebug called multiple times. Can only be called once")
}
}
// Logf logs using the fmt printf pattern. Appends a new line to the end of the
// logged statement.
func (l *logger) Logf(format string, args ...interface{}) {
if l == nil {
return
}
fmt.Fprintf(l.w, format+"\n", args...)
}
// Logln logs using the fmt println pattern.
func (l *logger) Logln(args ...interface{}) {
if l == nil {
return
}
fmt.Fprintln(l.w, args...)
}
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