48 lines
1.1 KiB
Go
48 lines
1.1 KiB
Go
package bank
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import (
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"reflect"
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sdk "github.com/cosmos/cosmos-sdk/types"
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)
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// Handle all "bank" type messages.
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func (ck CoinKeeper) Handler(ctx sdk.Context, msg sdk.Msg) sdk.Result {
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switch msg := msg.(type) {
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case SendMsg:
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return handleSendMsg(ctx, ck, msg)
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case IssueMsg:
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return handleIssueMsg(ctx, ck, msg)
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default:
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errMsg := "Unrecognized bank Msg type: " + reflect.TypeOf(msg).Name()
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return sdk.ErrUnknownRequest(errMsg).Result()
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}
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}
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// Handle SendMsg.
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func handleSendMsg(ctx sdk.Context, ck CoinKeeper, msg SendMsg) sdk.Result {
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// NOTE: totalIn == totalOut should already have been checked
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for _, in := range msg.Inputs {
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_, err := ck.SubtractCoins(ctx, in.Address, in.Coins)
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if err != nil {
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return err.Result()
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}
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}
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for _, out := range msg.Outputs {
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_, err := ck.AddCoins(ctx, out.Address, out.Coins)
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if err != nil {
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return err.Result()
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}
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}
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// TODO: add some tags so we can search it!
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return sdk.Result{} // TODO
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}
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// Handle IssueMsg.
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func handleIssueMsg(ctx sdk.Context, ck CoinKeeper, msg IssueMsg) sdk.Result {
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panic("not implemented yet")
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}
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