slog: rename XXXCtx to XXXContext, deprecate old names

See golang/go#61200 for, um, context.

Add XXXContext methods, but keep the XXXCtx methods around
(deprecated) to avoid breaking people.

Change-Id: I6835658615fb4979b03f5ae0516ac8f79b0f241d
Reviewed-on: https://go-review.googlesource.com/c/exp/+/508215
Run-TryBot: Jonathan Amsterdam <jba@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>

slog/doc.go

@@ -174,9 +174,9 @@ argument, as do their corresponding top-level functions.
 
 Although the convenience methods on Logger (Info and so on) and the
 corresponding top-level functions do not take a context, the alternatives ending
-in "Ctx" do. For example,
+in "Context" do. For example,
 
-	slog.InfoCtx(ctx, "message")
+	slog.InfoContext(ctx, "message")
 
 It is recommended to pass a context to an output method if one is available.
 

slog/logger.go

@@ -167,7 +167,13 @@ func (l *Logger) Debug(msg string, args ...any) {
 	l.log(nil, LevelDebug, msg, args...)
 }
 
+// DebugContext logs at LevelDebug with the given context.
+func (l *Logger) DebugContext(ctx context.Context, msg string, args ...any) {
+	l.log(ctx, LevelDebug, msg, args...)
+}
+
 // DebugCtx logs at LevelDebug with the given context.
+// Deprecated: Use Logger.DebugContext.
 func (l *Logger) DebugCtx(ctx context.Context, msg string, args ...any) {
 	l.log(ctx, LevelDebug, msg, args...)
 }
@@ -177,7 +183,13 @@ func (l *Logger) Info(msg string, args ...any) {
 	l.log(nil, LevelInfo, msg, args...)
 }
 
+// InfoContext logs at LevelInfo with the given context.
+func (l *Logger) InfoContext(ctx context.Context, msg string, args ...any) {
+	l.log(ctx, LevelInfo, msg, args...)
+}
+
 // InfoCtx logs at LevelInfo with the given context.
+// Deprecated: Use Logger.InfoContext.
 func (l *Logger) InfoCtx(ctx context.Context, msg string, args ...any) {
 	l.log(ctx, LevelInfo, msg, args...)
 }
@@ -187,7 +199,13 @@ func (l *Logger) Warn(msg string, args ...any) {
 	l.log(nil, LevelWarn, msg, args...)
 }
 
+// WarnContext logs at LevelWarn with the given context.
+func (l *Logger) WarnContext(ctx context.Context, msg string, args ...any) {
+	l.log(ctx, LevelWarn, msg, args...)
+}
+
 // WarnCtx logs at LevelWarn with the given context.
+// Deprecated: Use Logger.WarnContext.
 func (l *Logger) WarnCtx(ctx context.Context, msg string, args ...any) {
 	l.log(ctx, LevelWarn, msg, args...)
 }
@@ -197,7 +215,13 @@ func (l *Logger) Error(msg string, args ...any) {
 	l.log(nil, LevelError, msg, args...)
 }
 
+// ErrorContext logs at LevelError with the given context.
+func (l *Logger) ErrorContext(ctx context.Context, msg string, args ...any) {
+	l.log(ctx, LevelError, msg, args...)
+}
+
 // ErrorCtx logs at LevelError with the given context.
+// Deprecated: Use Logger.ErrorContext.
 func (l *Logger) ErrorCtx(ctx context.Context, msg string, args ...any) {
 	l.log(ctx, LevelError, msg, args...)
 }
@@ -249,8 +273,8 @@ func Debug(msg string, args ...any) {
 	Default().log(nil, LevelDebug, msg, args...)
 }
 
-// DebugCtx calls Logger.DebugCtx on the default logger.
-func DebugCtx(ctx context.Context, msg string, args ...any) {
+// DebugContext calls Logger.DebugContext on the default logger.
+func DebugContext(ctx context.Context, msg string, args ...any) {
 	Default().log(ctx, LevelDebug, msg, args...)
 }
 
@@ -259,8 +283,8 @@ func Info(msg string, args ...any) {
 	Default().log(nil, LevelInfo, msg, args...)
 }
 
-// InfoCtx calls Logger.InfoCtx on the default logger.
-func InfoCtx(ctx context.Context, msg string, args ...any) {
+// InfoContext calls Logger.InfoContext on the default logger.
+func InfoContext(ctx context.Context, msg string, args ...any) {
 	Default().log(ctx, LevelInfo, msg, args...)
 }
 
@@ -269,8 +293,8 @@ func Warn(msg string, args ...any) {
 	Default().log(nil, LevelWarn, msg, args...)
 }
 
-// WarnCtx calls Logger.WarnCtx on the default logger.
-func WarnCtx(ctx context.Context, msg string, args ...any) {
+// WarnContext calls Logger.WarnContext on the default logger.
+func WarnContext(ctx context.Context, msg string, args ...any) {
 	Default().log(ctx, LevelWarn, msg, args...)
 }
 
@@ -279,7 +303,31 @@ func Error(msg string, args ...any) {
 	Default().log(nil, LevelError, msg, args...)
 }
 
-// ErrorCtx calls Logger.ErrorCtx on the default logger.
+// ErrorContext calls Logger.ErrorContext on the default logger.
+func ErrorContext(ctx context.Context, msg string, args ...any) {
+	Default().log(ctx, LevelError, msg, args...)
+}
+
+// DebugCtx calls Logger.DebugContext on the default logger.
+// Deprecated: call DebugContext.
+func DebugCtx(ctx context.Context, msg string, args ...any) {
+	Default().log(ctx, LevelDebug, msg, args...)
+}
+
+// InfoCtx calls Logger.InfoContext on the default logger.
+// Deprecated: call InfoContext.
+func InfoCtx(ctx context.Context, msg string, args ...any) {
+	Default().log(ctx, LevelInfo, msg, args...)
+}
+
+// WarnCtx calls Logger.WarnContext on the default logger.
+// Deprecated: call WarnContext.
+func WarnCtx(ctx context.Context, msg string, args ...any) {
+	Default().log(ctx, LevelWarn, msg, args...)
+}
+
+// ErrorCtx calls Logger.ErrorContext on the default logger.
+// Deprecated: call ErrorContext.
 func ErrorCtx(ctx context.Context, msg string, args ...any) {
 	Default().log(ctx, LevelError, msg, args...)
 }