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corwintines merged 2 commits into from
Nov 19, 2025
Merged

Improved formatting #16500

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2825d03
Improved formatting
Pfed-prog Oct 16, 2025
12c5582
formatting
corwintines Nov 19, 2025
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9 changes: 2 additions & 7 deletions ...lopers/tutorials/downsizing-contracts-to-fight-the-contract-size-limit/index.md
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Expand Up @@ -51,8 +51,6 @@ This one should be obvious. Functions increase a contract size quite a bit.

### Avoid additional variables {#avoid-additional-variables}

A simple change like this:

```solidity
function get(uint id) returns (address,address) {
MyStruct memory myStruct = myStructs[id];
Expand All @@ -66,15 +64,14 @@ function get(uint id) returns (address,address) {
}
```

makes a difference of **0.28kb**. Chances are you can find many similar situations in your contracts and those can really add up to significant amounts.
A simple change like this makes a difference of **0.28kb**. Chances are you can find many similar situations in your contracts and those can really add up to significant amounts.

### Shorten error message {#shorten-error-message}

Long revert messages and in particular many different revert messages can bloat up the contract. Instead use short error codes and decode them in your contract. A long message could be become much shorter:

```solidity
require(msg.sender == owner, "Only the owner of this contract can call this function");

```

```solidity
Expand All @@ -101,7 +98,7 @@ You can also change the optimizer settings. The default value of 200 means that

### Avoid passing structs to functions {#avoid-passing-structs-to-functions}

If you are using the [ABIEncoderV2](https://solidity.readthedocs.io/en/v0.6.10/layout-of-source-files.html#abiencoderv2), it can help to not pass structs to a function. Instead of passing the parameter as a struct...
If you are using the [ABIEncoderV2](https://solidity.readthedocs.io/en/v0.6.10/layout-of-source-files.html#abiencoderv2), it can help to not pass structs to a function. Instead of passing the parameter as a struct, pass the required parameters directly. In this example we saved another **0.1kb**.

```solidity
function get(uint id) returns (address,address) {
Expand All @@ -123,8 +120,6 @@ function _get(address addr1, address addr2) private view returns(address,address
}
```

... pass the required parameters directly. In this example we saved another **0.1kb**.

### Declare correct visibility for functions and variables {#declare-correct-visibility-for-functions-and-variables}

- Functions or variables that are only called from the outside? Declare them as `external` instead of `public`.
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