## Summary
- Fix nested map conversion data loss when using `gconv.Scan()` or
`MapToMap()`
- When converting `map[string]any` to `map[string]map[string]float64`,
the nested data was lost
- Root cause: `MapToMap` incorrectly called `Struct()` for map value
types
- Solution: Separate `reflect.Map` handling from `reflect.Struct`, use
recursive `MapToMap()` for nested maps
## Test plan
- [x] Added test case reproducing original bug (nested map conversion)
- [x] Added test cases for deep nesting (3-5 levels)
- [x] Added test case for different key types
- [x] Added test case for empty nested map
- [x] Verified struct conversion still works (no regression)
- [x] Verified no infinite recursion with timeout tests
- [x] All gconv tests pass
Closes#4542
---------
Co-authored-by: hailaz <739476267@qq.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
This pull request standardizes the use of the Go 1.18+ `any` type alias
instead of `interface{}` throughout the codebase. The change improves
code readability and aligns with modern Go best practices. The update
touches many files, including core data structures, code generation
templates, logging utilities, and test data, ensuring consistency across
all usages.
**Type alias migration to `any`:**
* Replaced all instances of `interface{}` with `any` in core data
structures such as `garray` and in generated model structs (e.g.,
`TableUser`, `User1`, `User2`) to modernize type usage.
[[1]](diffhunk://#diff-3a1259e160a4dfa5fe49dfe739fbdb986c0d0a2220a709882ea48d3ae1b8f911L31-R31)
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[[6]](diffhunk://#diff-2cff9cf8e6a0cc34087326d8c8149c3bbaf74c76fdbdf5a73daed13cc04249e1L15-R19)
* Updated function signatures, method parameters, and return types from
`interface{}` to `any` in various parts of the codebase, including code
generation, service logic, and logging utilities (e.g., `mlog`).
[[1]](diffhunk://#diff-175edfeea54490b8fe4e18ffcbea5835efaf8f0b8acf623359073987cae7eb76L48-R55)
[[2]](diffhunk://#diff-2b1953fb78cf3593d8c2c7d911e95b65fd0b847c30ed0b4d167d16fe6d781235L54-R74)
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[[4]](diffhunk://#diff-5582954e8a9983988dc8854ad82067fb2ac6269b988e07357ad8db1dfec5f1a0L39-R41)
[[5]](diffhunk://#diff-c5d51d56f487779a2b6207c7ad26c7a20bbadcc846ce094fe60ab4cabff58c51L107-R107)
[[6]](diffhunk://#diff-f96e6a9fdb416eb1804ceaba1fe0ac637bff22c43837f8bb849c2366ce72d4a1L116-R121)
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**Generated code and templates:**
* Adjusted generated files and code generation templates to output `any`
instead of `interface{}` for relevant struct fields and function
signatures, ensuring that new code generation aligns with the updated
convention.
[[1]](diffhunk://#diff-6c19859cb32c7516ea95ddc8f8235460818eb2f24d2204308e0d9e1b19e7d90fL15-R19)
[[2]](diffhunk://#diff-a15ba2f5e830b4833c47b902515a4f9e5a4f83a3707698f3229b307ec3776b41L15-R18)
[[3]](diffhunk://#diff-52e0837e84d49221d1b810d88fdf78221f36cffcd664fb42f8aba49a79b974dcL15-R19)
[[4]](diffhunk://#diff-11c3457d1a23a4ca6ecd00d6b856289774936b6a708384cf03aff164044e7546L15-R19)
[[5]](diffhunk://#diff-2cff9cf8e6a0cc34087326d8c8149c3bbaf74c76fdbdf5a73daed13cc04249e1L15-R19)
[[6]](diffhunk://#diff-175edfeea54490b8fe4e18ffcbea5835efaf8f0b8acf623359073987cae7eb76L48-R55)
[[7]](diffhunk://#diff-e001b7a4b63603b9b14f00de78a4d570bb76c5f57d856a24643f071032e12356L66-R73)
[[8]](diffhunk://#diff-5582954e8a9983988dc8854ad82067fb2ac6269b988e07357ad8db1dfec5f1a0L39-R41)
**Container and utility updates:**
* Refactored the `garray` container implementation and related
constructors/methods to use `[]any` instead of `[]interface{}`, along
with corresponding function signatures.
[[1]](diffhunk://#diff-3a1259e160a4dfa5fe49dfe739fbdb986c0d0a2220a709882ea48d3ae1b8f911L31-R31)
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[[5]](diffhunk://#diff-3a1259e160a4dfa5fe49dfe739fbdb986c0d0a2220a709882ea48d3ae1b8f911L96-R97)
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These changes collectively modernize the codebase and prepare it for
future Go developments by using the idiomatic `any` type.
