feat: support console.table#14338
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zerosnacks merged 11 commits intofoundry-rs:masterfrom Apr 22, 2026
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ndavd
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mablr
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Amp-Thread-ID: https://ampcode.com/threads/T-019db45a-2ee1-771d-8127-2052dc6df2a3 Co-authored-by: Amp <amp@ampcode.com>
Replace fragile name-based detection (`starts_with("table")`) with a
structural check: table call structs have all fields of type `Vec<T>`
(Solidity arrays), while regular `log` calls never use array parameters.
…elds
Combine the name-based check (`starts_with("table")`) with the
structural Vec<T> field check so both must hold. This prevents
accidental table rendering for unrelated structs that happen to
have all-Vec fields.
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Apr 22, 2026
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Made table detection more robust.
s/o @zerosnacks for guidance 🫡
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Thank you both for the nice improvements ! |
mablr
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Apr 22, 2026
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Apr 22, 2026
Resolves #91 - Depends on foundry-rs/foundry#14338 Two of the most common use-cases for tables are easily logging arrays and comparing multiple labelled values, which often leads the user to manually line up the values like so: ```solidity console.log("alice ", 0x328809Bc894f92807417D2dAD6b7C998c1aFdac6); console.log("bob ", 0x1D96F2f6BeF1202E4Ce1Ff6Dad0c2CB002861d3e); console.log("charlie", 0xea475d60c118d7058beF4bDd9c32bA51139a74e0); ``` Both of those use-cases can be solved with a table with a single column of values. For this reason and because it would double the variants, I've opted to not support tables with multiple value columns, though it can be added in the future. This adds 12 variants for `console.table`: - 6 single-array (auto-indexed, array of values) - 6 keyed (`string[]` indexes, array of values) Value types supported: `uint256`, `int256`, `address`, `bytes32`, `string`, `bool`. Some notes: - I've added this to `console` and not `console2` since it's just adding new functionality and not introducing any breaking changes. For `console2` to inherit from `console` and have its own new methods, I would need to import each method from `console` and define new ones in `console2` since libraries don't support inheritance, which would be a lot of maintenance, and also would involve the question of whether to use the same `CONSOLE_ADDRESS` - I've chosen the box characters `┌`, `─`, `┼`, `│`, etc. to more closely match Node.js's `console.table` output and because it's more aesthetically pleasing, but if preferred, a simpler option is to use the ASCII version with just `-`, `+`, `|` Usage example: ```solidity string[] memory idxs = new string[](3); idxs[0] = "alice"; idxs[1] = "bob"; idxs[2] = "charlie"; address[] memory addrs = new address[](3); bytes32[] memory hashes = new bytes32[](3); for (uint256 i = 0; i < idxs.length; i++) { addrs[i] = makeAddr(idxs[i]); hashes[i] = keccak256(abi.encodePacked(idxs[i])); } console.table(addrs); console.table(idxs, addrs); console.table(idxs, hashes); ``` Output: ```txt Logs: ┌─────────┬────────────────────────────────────────────┐ │ (index) │ Values │ ├─────────┼────────────────────────────────────────────┤ │ 0 │ 0x328809Bc894f92807417D2dAD6b7C998c1aFdac6 │ │ 1 │ 0x1D96F2f6BeF1202E4Ce1Ff6Dad0c2CB002861d3e │ │ 2 │ 0xea475d60c118d7058beF4bDd9c32bA51139a74e0 │ └─────────┴────────────────────────────────────────────┘ ┌─────────┬────────────────────────────────────────────┐ │ (index) │ Values │ ├─────────┼────────────────────────────────────────────┤ │ alice │ 0x328809Bc894f92807417D2dAD6b7C998c1aFdac6 │ │ bob │ 0x1D96F2f6BeF1202E4Ce1Ff6Dad0c2CB002861d3e │ │ charlie │ 0xea475d60c118d7058beF4bDd9c32bA51139a74e0 │ └─────────┴────────────────────────────────────────────┘ ┌─────────┬────────────────────────────────────────────────────────────────────┐ │ (index) │ Values │ ├─────────┼────────────────────────────────────────────────────────────────────┤ │ alice │ 0x9c0257114eb9399a2985f8e75dad7600c5d89fe3824ffa99ec1c3eb8bf3b0501 │ │ bob │ 0x38e47a7b719dce63662aeaf43440326f551b8a7ee198cee35cb5d517f2d296a2 │ │ charlie │ 0x87a213ce1ee769e28decedefb98f6fe48890a74ba84957ebf877fb591e37e0de │ └─────────┴────────────────────────────────────────────────────────────────────┘ ``` Co-authored-by: zerosnacks <95942363+zerosnacks@users.noreply.github.com>
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Implements
console.tableformatting.Changes:
Console.jsonto include the 12 newtablevariantsconsole_table_formatConsoleFmtderive macro to handletablecall structsPR Checklist