api: match WebRTC api more closely

errors.go

@@ -0,0 +1,92 @@
+package webrtc
+
+import (
+	"errors"
+	"fmt"
+)
+
+// Types of InvalidStateErrors
+var (
+	ErrConnectionClosed = errors.New("connection closed")
+)
+
+// InvalidStateError indicates the object is in an invalid state.
+type InvalidStateError struct {
+	Err error
+}
+
+func (e *InvalidStateError) Error() string {
+	return fmt.Sprintf("invalid state error: %v", e.Err)
+}
+
+// Types of UnknownErrors
+var (
+	ErrNoConfig = errors.New("no configuration provided")
+)
+
+// UnknownError indicates the operation failed for an unknown transient reason
+type UnknownError struct {
+	Err error
+}
+
+func (e *UnknownError) Error() string {
+	return fmt.Sprintf("unknown error: %v", e.Err)
+}
+
+// Types of InvalidAccessErrors
+var (
+	ErrCertificateExpired = errors.New("certificate expired")
+	ErrNoTurnCred         = errors.New("turn server credentials required")
+	ErrTurnCred           = errors.New("invalid turn server credentials")
+	ErrExistingTrack      = errors.New("track aready exists")
+)
+
+// InvalidAccessError indicates the object does not support the operation or argument.
+type InvalidAccessError struct {
+	Err error
+}
+
+func (e *InvalidAccessError) Error() string {
+	return fmt.Sprintf("invalid access error: %v", e.Err)
+}
+
+// Types of NotSupportedErrors
+var ()
+
+// NotSupportedError indicates the operation is not supported.
+type NotSupportedError struct {
+	Err error
+}
+
+func (e *NotSupportedError) Error() string {
+	return fmt.Sprintf("not supported error: %v", e.Err)
+}
+
+// Types of InvalidModificationErrors
+var (
+	ErrModPeerIdentity         = errors.New("peer identity cannot be modified")
+	ErrModCertificates         = errors.New("certificates cannot be modified")
+	ErrModRtcpMuxPolicy        = errors.New("rtcp mux policy cannot be modified")
+	ErrModIceCandidatePoolSize = errors.New("ice candidate pool size cannot be modified")
+)
+
+// InvalidModificationError indicates the object can not be modified in this way.
+type InvalidModificationError struct {
+	Err error
+}
+
+func (e *InvalidModificationError) Error() string {
+	return fmt.Sprintf("invalid modification error: %v", e.Err)
+}
+
+// Types of SyntaxErrors
+var ()
+
+// SyntaxError indicates the string did not match the expected pattern.
+type SyntaxError struct {
+	Err error
+}
+
+func (e *SyntaxError) Error() string {
+	return fmt.Sprintf("syntax error: %v", e.Err)
+}