Deposit context words read their own column or revert

Deposit tasks get a dedicated context column (5) holding
[token, vaultId, before, after, decimals, depositor]; every other
entrypoint leaves it empty, so deposit-* words outside deposit tasks
revert out of bounds instead of reading column 1. depositor reads (5,5).
Signers/signed context move to 6/7, derived from CONTEXT_COLUMNS.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

Author: thedavidmeister

crates/test_fixtures/abis/RaindexV6.json

@@ -51,6 +51,7 @@ import {
     CONTEXT_CALCULATIONS_ROW_MAX_OUTPUT,
     CONTEXT_CALCULATIONS_ROWS,
     CONTEXT_CALLING_CONTEXT_ROW_ORDER_COUNTERPARTY,
+    CONTEXT_DEPOSIT_COLUMN,
     CONTEXT_CALLING_CONTEXT_ROW_ORDER_OWNER,
     CONTEXT_CALLING_CONTEXT_ROW_ORDER_HASH,
     CONTEXT_CALLING_CONTEXT_ROWS,
@@ -167,7 +168,7 @@ contract RaindexV6SubParser is BaseRainlangSubParser {
         contextDepositContextHandlers[DEPOSIT_WORD_VAULT_AFTER] = LibParseOperand.handleOperandDisallowed;
         contextDepositContextHandlers[DEPOSIT_WORD_TOKEN_DECIMALS] = LibParseOperand.handleOperandDisallowed;
 
-        handlers[CONTEXT_SIGNED_CONTEXT_START_COLUMN + 1] = contextDepositContextHandlers;
+        handlers[CONTEXT_DEPOSIT_COLUMN] = contextDepositContextHandlers;
 
         function(bytes32[] memory) internal pure returns (OperandV2)[] memory contextWithdrawContextHandlers =
             new function(bytes32[] memory) internal pure returns (OperandV2)[](WITHDRAW_WORDS_LENGTH);
@@ -179,7 +180,7 @@ contract RaindexV6SubParser is BaseRainlangSubParser {
         contextWithdrawContextHandlers[WITHDRAW_WORD_TARGET_AMOUNT] = LibParseOperand.handleOperandDisallowed;
         contextWithdrawContextHandlers[WITHDRAW_WORD_TOKEN_DECIMALS] = LibParseOperand.handleOperandDisallowed;
 
-        handlers[CONTEXT_SIGNED_CONTEXT_START_COLUMN + 2] = contextWithdrawContextHandlers;
+        handlers[CONTEXT_SIGNED_CONTEXT_START_COLUMN + 1] = contextWithdrawContextHandlers;
 
         uint256[][] memory handlersUint256;
         assembly ("memory-safe") {
@@ -275,14 +276,14 @@ contract RaindexV6SubParser is BaseRainlangSubParser {
             internal
             view returns (bool, bytes memory, bytes32[] memory)[](DEPOSIT_WORDS_LENGTH);
 
-        depositParsers[DEPOSIT_WORD_DEPOSITOR] = LibRaindexSubParser.subParserSender;
+        depositParsers[DEPOSIT_WORD_DEPOSITOR] = LibRaindexSubParser.subParserDepositor;
         depositParsers[DEPOSIT_WORD_TOKEN] = LibRaindexSubParser.subParserDepositToken;
         depositParsers[DEPOSIT_WORD_VAULT_ID] = LibRaindexSubParser.subParserDepositVaultId;
         depositParsers[DEPOSIT_WORD_VAULT_BEFORE] = LibRaindexSubParser.subParserDepositVaultBalanceBefore;
         depositParsers[DEPOSIT_WORD_VAULT_AFTER] = LibRaindexSubParser.subParserDepositVaultBalanceAfter;
         depositParsers[DEPOSIT_WORD_TOKEN_DECIMALS] = LibRaindexSubParser.subParserDepositTokenDecimals;
 
-        parsers[CONTEXT_SIGNED_CONTEXT_START_COLUMN + 1] = depositParsers;
+        parsers[CONTEXT_DEPOSIT_COLUMN] = depositParsers;
 
         // Withdraws
 
@@ -300,7 +301,7 @@ contract RaindexV6SubParser is BaseRainlangSubParser {
         withdrawParsers[WITHDRAW_WORD_TARGET_AMOUNT] = LibRaindexSubParser.subParserWithdrawTargetAmount;
         withdrawParsers[WITHDRAW_WORD_TOKEN_DECIMALS] = LibRaindexSubParser.subParserWithdrawTokenDecimals;
 
-        parsers[CONTEXT_SIGNED_CONTEXT_START_COLUMN + 2] = withdrawParsers;
+        parsers[CONTEXT_SIGNED_CONTEXT_START_COLUMN + 1] = withdrawParsers;
 
         uint256[][] memory parsersUint256;
         assembly ("memory-safe") {

crates/test_fixtures/abis/RaindexV6SubParser.json

@@ -52,6 +52,7 @@ import {LibOrder} from "../../lib/LibOrder.sol";
 import {
     CALLING_CONTEXT_COLUMNS,
     CONTEXT_CALLING_CONTEXT_COLUMN,
+    CONTEXT_DEPOSIT_COLUMN,
     CONTEXT_CALCULATIONS_COLUMN,
     CONTEXT_CALCULATIONS_ROWS,
     CONTEXT_VAULT_IO_BALANCE_DIFF,
@@ -175,13 +176,15 @@ contract RaindexV6 is IRaindexV6, IMetaV1_2, ReentrancyGuard, Multicall, Raindex
 
         if (post.length != 0) {
             LibRaindex.doPost(
-                LibBytes32Matrix.matrixFrom(
+                LibRaindex.callingContextColumn(
+                    CONTEXT_DEPOSIT_COLUMN,
                     LibBytes32Array.arrayFrom(
                         bytes32(uint256(uint160(token))),
                         bytes32(vaultId),
                         Float.unwrap(beforeBalance),
                         Float.unwrap(afterBalance),
-                        bytes32(uint256(decimals))
+                        bytes32(uint256(decimals)),
+                        bytes32(uint256(uint160(msg.sender)))
                     )
                 ),
                 post

meta/RaindexV6SubParser.rain.meta

@@ -5,10 +5,10 @@ pragma solidity ^0.8.25;
 // THIS FILE IS AUTOGENERATED BY THE BUILD SCRIPT. DO NOT EDIT BY HAND.
 
 /// @dev Hash of the known bytecode.
-bytes32 constant BYTECODE_HASH = bytes32(0xb5f18596862c369ecb1bc3cf69399785a578427214d9372d94d0fde2ed0ecaeb);
+bytes32 constant BYTECODE_HASH = bytes32(0x1229c3e90ccea550ef1fb1a77f54ff7b8b3339800da312a645093454b964a007);
 
 /// @dev The hash of the meta that describes the contract.
-bytes32 constant DESCRIBED_BY_META_HASH = bytes32(0xf2d0eca454c544ab10f9991c019349475a416e38494f112a50807174c3000d0b);
+bytes32 constant DESCRIBED_BY_META_HASH = bytes32(0x7e92d4e954f131b7ce6471bc48157dc3125be0b90c8c9e26855b88218d95eb20);
 
 /// @dev The parse meta that is used to lookup word definitions.
 /// The structure of the parse meta is:
@@ -27,7 +27,7 @@ bytes32 constant DESCRIBED_BY_META_HASH = bytes32(0xf2d0eca454c544ab10f9991c0193
 /// bit count of the previous bloom filter. If we reach the end of the bloom
 /// filters then we have a miss.
 bytes constant PARSE_META =
-    hex"0101180010800082000100010480300038412a001810000010020004200004002038038ff54900cc66c61ff3dcab0616592209895f0b16fec9301b02e0920c5bfe561d21609201e959460b1974270f844db208bcd3bf1e989376111049db13b934301a0ae9a00af82a7805c138f40d28083f0742ef2104d561fd1415a13317716a6119d260cc107b9bfc0eec7ade15cba2891c6b14a512792bdb02e0f14718565589";
+    hex"0101180010800082000100010480300038412a001810000010020004200004002038038ff54900cc66c61ff3dcab0616592209895f0b14fec9301b02e0920c5bfe561d21609201e959460b1974270f844db208bcd3bf1e989376171049db11b934301a0ae9a00af82a7805c138f40d28083f0742ef2104d561fd1215a13315716a6119d260cc107b9bfc0eec7ade13cba2891c6b14a518792bdb02e0f14716565589";
 
 /// @dev The build depth of the parser meta.
 
@@ -39,13 +39,13 @@ uint8 constant PARSE_META_BUILD_DEPTH = 1;
 /// to things that happen entirely on the interpreter such as well known
 /// constants and references to the context grid.
 bytes constant SUB_PARSER_WORD_PARSERS =
-    hex"16cc16e916f8170717161726173517451754176417741783179317a217b217c217d217e117f016cc16f8170717161825183516cc16f817071716182518351845";
+    hex"170617231732174117501760176f177f178e179e17ae17bd17cd17dc17ec17fc180c1880188f189e18ae18be18ce181b1834170617321741175018de18ee18fe";
 
 /// @dev Every two bytes is a function pointer for an operand handler.
 /// These positional indexes all map to the same indexes looked up in the parse
 /// meta.
 bytes constant OPERAND_HANDLER_FUNCTION_POINTERS =
-    hex"1bec1bec1bec1bec1bec1bec1bec1bec1bec1bec1bec1bec1bec1bec1bec1bec1bec1c151cb11bec1bec1bec1bec1bec1bec1bec1bec1bec1bec1bec1bec1bec";
+    hex"1ca51ca51ca51ca51ca51ca51ca51ca51ca51ca51ca51ca51ca51ca51ca51ca51ca51ca51ca51ca51ca51ca51ca51cce1d6a1ca51ca51ca51ca51ca51ca51ca5";
 
 /// @dev Every two bytes is a function pointer for a literal parser.
 /// Literal dispatches are determined by the first byte(s) of the literal