feat: Correctly inline opening parentheses

[lu-zero]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 98.64865% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 99.23%. Comparing base (d20763c) to head (64c48ec).
⚠️ Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
src/formatter.rs	98.94%	1 Missing ⚠️
src/indentation.rs	95.23%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #100      +/-   ##
==========================================
- Coverage   99.24%   99.23%   -0.01%     
==========================================
  Files           6        6              
  Lines        3558     3646      +88     
  Branches     3558     3646      +88     
==========================================
+ Hits         3531     3618      +87     
- Misses         19       20       +1     
  Partials        8        8              

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[Copilot]

Pull Request Overview

This PR implements functionality to correctly inline opening parentheses in SQL formatting. The changes enable specific formatting behavior where opening parentheses can be placed on the same line as the preceding keyword when certain conditions are met, rather than always starting a new line.

• Enhances the SpanInfo struct to track additional metadata for formatting decisions
• Implements logic to detect when opening parentheses should be inlined with preceding keywords
• Updates indentation handling to support "folded blocks" that don't contribute to indentation depth

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 2 comments.

File	Description
src/lib.rs	Adds new fields to SpanInfo struct and includes test case for inline parentheses behavior
src/inline_block.rs	Modifies begin_if_possible method to return boolean indicating if inlining occurred
src/indentation.rs	Adds support for folded block indentation type and updates indentation calculation
src/formatter.rs	Implements core logic for detecting and formatting inline opening parentheses

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[Copilot]

The logic for counting arguments is incorrect. This code increments arguments for every non-comma token when arguments is 0, which means arguments will always be at least 1 even for empty parameter lists. This should only increment when encountering the first actual argument token, not for every token.

Suggested change

	if arguments == 0 {
	arguments += 1
	// Only increment arguments for the first actual argument token,
	// and only if it's not whitespace, parentheses, or reserved keywords.
	// Only increment arguments for the first actual argument token,
	// and only if it's not whitespace, parentheses, or reserved keywords.
	if arguments == 0 {
	arguments += 1;
	TokenKind::Whitespace
	| TokenKind::OpenParen
	| TokenKind::CloseParen
	| TokenKind::ReservedTopLevel
	| TokenKind::ReservedTopLevelNoIndent
	| TokenKind::ReservedNewlineAfter
	| TokenKind::Operator if token.value == "," => {}
	_ => arguments += 1,
	}

[shssoichiro]

I'm not sure if the comment is valid or not, but I know for sure the code suggestion is broken.