Fix: Freeze During SQL Formatting

[xterao]

Running the SQL formatter on certain SQL statements causes IntelliJ IDEA to freeze.

This issue occurs specifically when a literal value (number, string, boolean, etc.) is passed as a parameter in a method call.

• Problem case: Literals used as method call parameters.

• Not affected: Cases where DAO method parameters are used, or when literals are used outside of method parameters.

Example that triggers the freeze:

SELECT *
FROM employee
WHERE id = /* employee.getParam(1) */0

The formatter now handles this case without causing IDEA to hang.

Fix Details

Properly implemented child block parsing within parameter blocks.

Ensured a Primary block is generated so that spacing settings do not return null.

[Copilot]

Pull Request Overview

This PR fixes a freeze issue in the SQL formatter when literal values are used as parameters in method calls within SQL comments. The fix involves properly implementing child block parsing and spacing logic to handle parameter blocks correctly.

• Enhanced parameter block handling to support literal values in method calls
• Fixed spacing logic to prevent null spacing configurations that caused the freeze
• Added proper child block generation for expression elements

Reviewed Changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
StaticFieldAccess_format.sql	Test data updated to include literal parameter (0) in method call
StaticFieldAccess.sql	Test data updated to include literal parameter (0) in method call
SqlExprBlock.kt	Simplified child block addition and changed spacing from null to nonSpacing
SqlElPrimaryBlock.kt	Added comprehensive getBlock method to handle different expression types
SqlElParametersBlock.kt	Enhanced parameter handling with proper spacing logic and additional expression type support

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