Graph of memory locations in Solidity: storage, calldata, etc…

Julien Klepatch

In Solidity smart contracts, there are 4 memory locations:

  • storage
  • memory
  • stack
  • calldata

They all have different lifetimes and it’s not always easy to choose which one is right. In the below graph I drew their lifetimes against the execution of blocks, smart contract and functions.

Lifetime of memory locations in Solidity

Storage is the only memory location than span across block, i.e it persists to the blockchain.

Memory spans across multiple function executions in the same smart contract.

Stack last only as long as the function it is contained in.

And calldata is only available in the argument of the outer function execution

0 Comments

Leave a Reply

More great articles

What to build on Ethereum? Dapp ideas

So, you are thinking of building a Dapp on Ethereum, but you are still not sure what to build? In…

Read Story

Metamask explained in 2 mins

Metamask is the most popular wallet in crypto

But when you are a beginner, Metamask is NOT easy.

 In this article…

Read Story

EatTheBlocks Pro Subscription price increase 10 USD -> 15 USD

Disclaimer: the price increase will NOT affect existing users who subscribed before June 10th. If you are an existing subscriber…

Read Story

Never miss a minute

Get great content to your inbox every week. No spam.
[contact-form-7 id="6" title="Footer CTA Subscribe Form"]
Arrow-up