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@seborama seborama commented May 4, 2025

Summary by CodeRabbit

  • Refactor
    • Improved clarity of error messages for certain operations involving non-object types.
    • Simplified internal handling of operator tokens for expression parsing, resulting in cleaner code without altering user-facing behaviour.

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coderabbitai bot commented May 4, 2025

Walkthrough

The changes update two files. In object.go, the error message in the DotVariable.Calculate method is modified for clarity, removing specific terminology and simplifying the message. In tree_builder.go, the mapping of operator strings to Operator constants within the FromExpr method is refactored. The switch-case logic is extracted into a new helper function, stringToOperator, which centralises the mapping logic and streamlines the main parsing flow. No other logic or exported declarations are changed except for the addition of the new helper function.

Changes

File(s) Change Summary
object.go Simplified the error message in DotVariable.Calculate for non-object input types.
tree_builder.go Refactored operator string-to-Operator mapping into a new helper function stringToOperator; updated FromExpr to use this helper. Added the stringToOperator function as a new exported entity.

Sequence Diagram(s)

sequenceDiagram
    participant Parser as FromExpr
    participant Helper as stringToOperator

    Parser->>Helper: Map operator string to Operator
    alt Operator found
        Helper-->>Parser: Return Operator, true
        Parser->>Parser: Append Operator to tree
    else Operator not found
        Helper-->>Parser: Return zero value, false
        Parser->>Parser: Return error
    end
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Possibly related PRs

  • Replace Dot[Variable] with DotVariable #31: Refactored the generic Dot[Variable] type to the concrete DotVariable struct and its Calculate method in object.go, which is directly related to the error message update in this PR.

Warning

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🔧 golangci-lint (1.64.8)

Error: can't load config: can't set severity rule option: no default severity defined
Failed executing command with error: can't load config: can't set severity rule option: no default severity defined

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Actionable comments posted: 0

🧹 Nitpick comments (1)
tree_builder.go (1)

136-177: Consider addressing the TODO comments

The function is well-structured and follows the standard Go pattern of returning a tuple with a boolean success indicator. However, there are two TODO comments about potentially rerouting And2 to And and Or2 to Or. Consider either implementing this rerouting or removing the comments if they're not intended for immediate action.

 case And2.String():
-		return And2, true // NOTE: re-route to And?
+		return And2, true
 case Or.String():
 	return Or, true
 case Or2.String():
-	return Or2, true // NOTE: re-route to Or?
+	return Or2, true

Or if you want to implement the rerouting:

 case And2.String():
-		return And2, true // NOTE: re-route to And?
+		return And, true
 case Or.String():
 	return Or, true
 case Or2.String():
-	return Or2, true // NOTE: re-route to Or?
+	return Or, true
📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between cc4491c and 4c4a156.

📒 Files selected for processing (2)
  • object.go (1 hunks)
  • tree_builder.go (2 hunks)
🧰 Additional context used
🧬 Code Graph Analysis (2)
object.go (1)
value_undefined.go (1)
  • NewUndefinedWithReasonf (24-28)
tree_builder.go (1)
operator.go (19)
  • Operator (3-3)
  • Plus (11-11)
  • Minus (12-12)
  • Multiply (13-13)
  • Divide (14-14)
  • Modulus (15-15)
  • Power (16-16)
  • LShift (17-17)
  • RShift (18-18)
  • LessThan (19-19)
  • LessThanOrEqual (20-20)
  • EqualTo (21-21)
  • NotEqualTo (22-22)
  • GreaterThan (23-23)
  • GreaterThanOrEqual (24-24)
  • And (25-25)
  • And2 (26-26)
  • Or (27-27)
  • Or2 (28-28)
🔇 Additional comments (2)
object.go (1)

59-59: Clearer error message, good improvement

The simplified error message is clearer and more direct, removing the redundant "[Variable]" label whilst maintaining all the essential information. This aligns well with the PR objective to improve clarity.

tree_builder.go (1)

45-49: Clean refactoring of operator lookup

Extracting the operator string mapping logic into a separate function is a good maintainability improvement. The code is now more readable and the operator mapping logic is centralised in one place.

@seborama seborama merged commit 21df582 into main May 4, 2025
3 checks passed
@seborama seborama deleted the chore/refactor_FromExpr_Operator branch May 4, 2025 18:31
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2 participants