Add FIXED_POINTS error codes#1559
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This PR is part of the stack implementing the fixed-point number types proposed in #1545. It lands every error code, context shape, and message that the new package will throw, so later PRs in the stack can just reference them. Reserves the range `[8090000-8090999]` for the `FIXED_POINTS` domain and allocates 12 codes covering invalid shape parameters (total bits, fractional bits, decimals, and the binary-only "fractional bits exceed total bits" check), out-of-range raw values, malformed raw values, malformed strings, zero-denominator ratios, division by zero, arithmetic overflow (shared by add/subtract/multiply/divide/negate/absolute/rescale/signedness conversion), strict shape mismatches in operations and codecs, and strict-mode precision loss when factories and operations cannot produce an exact result without rounding. Here is an example message for each new code: - `SOLANA_ERROR__FIXED_POINTS__INVALID_TOTAL_BITS`: ``` Invalid `totalBits`. Expected a positive integer, got foo. ``` - `SOLANA_ERROR__FIXED_POINTS__INVALID_FRACTIONAL_BITS`: ``` Invalid `fractionalBits`. Expected a non-negative integer, got -1. ``` - `SOLANA_ERROR__FIXED_POINTS__INVALID_DECIMALS`: ``` Invalid `decimals`. Expected a non-negative integer, got 1.5. ``` - `SOLANA_ERROR__FIXED_POINTS__FRACTIONAL_BITS_EXCEED_TOTAL_BITS`: ``` `fractionalBits` (64) must not exceed `totalBits` (16). ``` - `SOLANA_ERROR__FIXED_POINTS__VALUE_OUT_OF_RANGE`: ``` Fixed-point value of kind `decimalFixedPoint` is out of range for unsigned 8-bit storage. Expected a raw bigint in [0, 255], got 999. ``` - `SOLANA_ERROR__FIXED_POINTS__INVALID_STRING`: ``` Invalid string `abc` for fixed-point value of kind `binaryFixedPoint`. ``` - `SOLANA_ERROR__FIXED_POINTS__INVALID_ZERO_DENOMINATOR_RATIO`: ``` Invalid ratio 3/0 for fixed-point value of kind `decimalFixedPoint`. Denominator must be non-zero. ``` - `SOLANA_ERROR__FIXED_POINTS__ARITHMETIC_OVERFLOW`: ``` Fixed-point operation `add` of kind `binaryFixedPoint` overflowed. Expected a raw bigint in [-128, 127], got 256. ``` - `SOLANA_ERROR__FIXED_POINTS__SHAPE_MISMATCH`: ``` Fixed-point `add` operation expected binaryFixedPoint (signed, 16 bits, 8 fractional bits); got decimalFixedPoint (unsigned, 64 bits, 6 decimals). ``` - `SOLANA_ERROR__FIXED_POINTS__DIVISION_BY_ZERO`: ``` Fixed-point division by zero for value of kind `decimalFixedPoint` (unsigned, 64 bits). ``` - `SOLANA_ERROR__FIXED_POINTS__STRICT_MODE_PRECISION_LOSS`: ``` Fixed-point operation `fromRatio` of kind `decimalFixedPoint` cannot be performed exactly; pass a rounding mode other than `strict` to allow a rounded result. ``` - `SOLANA_ERROR__FIXED_POINTS__MALFORMED_RAW_VALUE`: ``` Fixed-point value of kind `binaryFixedPoint` has a malformed `raw` field. Expected a bigint, got `42`. ```
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This PR is part of the stack implementing the fixed-point number types proposed in #1545. It lands every error code, context shape, and message that the new package will throw, so later PRs in the stack can just reference them.
Reserves the range
[8090000-8090999]for theFIXED_POINTSdomain and allocates 12 codes covering invalid shape parameters (total bits, fractional bits, decimals, and the binary-only "fractional bits exceed total bits" check), out-of-range raw values, malformed raw values, malformed strings, zero-denominator ratios, division by zero, arithmetic overflow (shared by add/subtract/multiply/divide/negate/absolute/rescale/signedness conversion), strict shape mismatches in operations and codecs, and strict-mode precision loss when factories and operations cannot produce an exact result without rounding.Here is an example message for each new code:
SOLANA_ERROR__FIXED_POINTS__INVALID_TOTAL_BITS:SOLANA_ERROR__FIXED_POINTS__INVALID_FRACTIONAL_BITS:SOLANA_ERROR__FIXED_POINTS__INVALID_DECIMALS:SOLANA_ERROR__FIXED_POINTS__FRACTIONAL_BITS_EXCEED_TOTAL_BITS:SOLANA_ERROR__FIXED_POINTS__VALUE_OUT_OF_RANGE:SOLANA_ERROR__FIXED_POINTS__INVALID_STRING:SOLANA_ERROR__FIXED_POINTS__INVALID_ZERO_DENOMINATOR_RATIO:SOLANA_ERROR__FIXED_POINTS__ARITHMETIC_OVERFLOW:SOLANA_ERROR__FIXED_POINTS__SHAPE_MISMATCH:SOLANA_ERROR__FIXED_POINTS__DIVISION_BY_ZERO:SOLANA_ERROR__FIXED_POINTS__STRICT_MODE_PRECISION_LOSS:SOLANA_ERROR__FIXED_POINTS__MALFORMED_RAW_VALUE: