Add an analouge of Functions as Effects like swirl

[Krishanu230]

Checklist

• evaluator/evaluator.go ✅ Commit cf3a120
• evaluator/evaluator.go ❌ Sandbox failed so I made additional changes
• evaluator/evaluator.go ❌ Sandbox failed so I made additional changes
• evaluator/evaluator.go ❌ Sandbox failed so I made additional changes
• evaluator/evaluator.go ✅ Sandbox ran successfully
• evaluator/evaluator.go ✅ Sandbox ran successfully
• evaluator/evaluator.go ❌ Sandbox failed so I made additional changes
• evaluator/evaluator.go ❌ Sandbox failed so I made additional changes
• evaluator/evaluator.go ❌ Sandbox failed so I made additional changes
• evaluator/evaluator.go ❌ Sandbox failed so I made additional changes

[sweep-ai-deprecated]

Here's the PR! #3.

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Step 1: 🔎 Searching

I found the following snippets in your repository. I will now analyze these snippets and come up with a plan.

Some code snippets I looked at (click to expand). If some file is missing from here, you can mention the path in the ticket description.

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Step 2: ⌨️ Coding

• evaluator/evaluator.go ✅ Commit cf3a120

Modify evaluator/evaluator.go with contents:
• Add a new function named SwirlEffect in the evaluator.go file. This function should take as input the flipbook pages and a parameter for the rate of rotation.
• In the SwirlEffect function, iterate over the flipbook pages. For each page, apply a rotation transformation. The angle of rotation should be calculated as the current page number multiplied by the rate of rotation.
• Update the function or method in the evaluator that interprets the flipbook language to recognize the swirl effect command. When this command is encountered, it should call the SwirlEffect function with the appropriate parameters.
• Update the function or method in the evaluator that generates the pdf to apply the transformations specified by the effects to the flipbook pages.

• evaluator/evaluator.go ❌ Sandbox failed so I made additional changes

The following are the logs from running the sandbox:

Sandbox logs for 92fbc7c ❌

trunk fmt `evaluator/evaluator.go` 1/2 ✓

 ✔ Formatted evaluator/evaluator.go
Re-checking autofixed files...


Checked 1 file
✔ No issues

trunk check --fix --print-failures `evaluator/evaluator.go` 2/2 ❌ (`1`)

  ISSUES  
evaluator/evaluator.go:186:31
 186:31  high  undefined: img  golangci-lint/typecheck
 187:2   high  undefined: pdf  golangci-lint/typecheck
 188:14  high  undefined: r    golangci-lint/typecheck
 190:10  high  undefined: r    golangci-lint/typecheck
Checked 2 files
2 existing issues
✖ 2 new issues

• evaluator/evaluator.go ❌ Sandbox failed so I made additional changes

The following are the logs from running the sandbox:

Sandbox logs for 3190526 ❌

trunk fmt `evaluator/evaluator.go` 1/2 ✓

 ✔ Formatted evaluator/evaluator.go
Re-checking autofixed files...


Checked 1 file
✔ No issues

trunk check --fix --print-failures `evaluator/evaluator.go` 2/2 ❌ (`1`)

  ISSUES  
evaluator/evaluator.go:198:65
 198:65  high  undefined: color                     golangci-lint/typecheck
 199:32  high  undefined: ix                        golangci-lint/typecheck
 200:11  high  no new variables on left side of :=  golangci-lint/typecheck
 208:6   high  no new variables on left side of :=  golangci-lint/typecheck
Checked 2 files
1 existing issue
✖ 3 new issues

• evaluator/evaluator.go ❌ Sandbox failed so I made additional changes

The following are the logs from running the sandbox:

Sandbox logs for 3190526 ❌

trunk fmt `evaluator/evaluator.go` 1/2 ✓

 ✔ Formatted evaluator/evaluator.go
Re-checking autofixed files...

Checked 1 file
✔ No issues

trunk check --fix --print-failures `evaluator/evaluator.go` 2/2 ❌ (`1`)

  ISSUES  
evaluator/evaluator.go:198:65
 198:65  high  undefined: color                     golangci-lint/typecheck
 199:32  high  undefined: ix                        golangci-lint/typecheck
 200:11  high  no new variables on left side of :=  golangci-lint/typecheck
 208:6   high  no new variables on left side of :=  golangci-lint/typecheck
Checked 2 files
1 existing issue
✖ 3 new issues

• evaluator/evaluator.go ✅ Sandbox ran successfully

The following are the logs from running the sandbox:

Sandbox logs for 38e9d87 ✓

trunk fmt `evaluator/evaluator.go` 1/2 ✓

 ✔ Formatted evaluator/evaluator.go
Re-checking autofixed files...


Checked 1 file
✔ No issues

trunk check --fix --print-failures `evaluator/evaluator.go` 2/2 ✓

  ISSUES  
evaluator/evaluator.go:211:6
 211:6  high  no new variables on left side of :=  golangci-lint/typecheck
Checked 2 files
1 existing issue

• evaluator/evaluator.go ✅ Sandbox ran successfully

The following are the logs from running the sandbox:

Sandbox logs for 1081208 ✓

trunk fmt `evaluator/evaluator.go` 1/2 ✓

Checked 1 file
✔ No issues

trunk check --fix --print-failures `evaluator/evaluator.go` 2/2 ✓

  ISSUES  
evaluator/evaluator.go:211:6
 211:6  high  no new variables on left side of :=  golangci-lint/typecheck
Checked 2 files
1 existing issue

• evaluator/evaluator.go ❌ Sandbox failed so I made additional changes

The following are the logs from running the sandbox:

Sandbox logs for dc882cc ❌

trunk fmt `evaluator/evaluator.go` 1/2 ✓

Checked 1 file
✔ No issues

trunk check --fix --print-failures `evaluator/evaluator.go` 2/2 ❌ (`1`)

  ISSUES  
evaluator/evaluator.go:5:2
   5:2  high   ↦ other declaration of color        golangci-lint/typecheck
  10:2  high  `color` redeclared in this block     golangci-lint/typecheck
 212:6  high  no new variables on left side of :=  golangci-lint/typecheck
Checked 2 files
1 existing issue
✖ 2 new issues

• evaluator/evaluator.go ❌ Sandbox failed so I made additional changes

The following are the logs from running the sandbox:

Sandbox logs for dc882cc ❌

trunk fmt `evaluator/evaluator.go` 1/2 ✓

Checked 1 file
✔ No issues

trunk check --fix --print-failures `evaluator/evaluator.go` 2/2 ❌ (`1`)

  ISSUES  
evaluator/evaluator.go:5:2
   5:2  high   ↦ other declaration of color        golangci-lint/typecheck
  10:2  high  `color` redeclared in this block     golangci-lint/typecheck
 212:6  high  no new variables on left side of :=  golangci-lint/typecheck
Checked 2 files
1 existing issue
✖ 2 new issues

• evaluator/evaluator.go ❌ Sandbox failed so I made additional changes

The following are the logs from running the sandbox:

Sandbox logs for 91415cf ❌

trunk fmt `evaluator/evaluator.go` 1/2 ✓

Checked 1 file
✔ No issues

trunk check --fix --print-failures `evaluator/evaluator.go` 2/2 ❌ (`1`)

  ISSUES  
evaluator/evaluator.go:199:2
 199:2  high  undefined: pdf  golangci-lint/typecheck
 200:2  high  undefined: pdf  golangci-lint/typecheck
 202:2  high  undefined: pdf  golangci-lint/typecheck
Checked 2 files
✖ 3 new issues

• evaluator/evaluator.go ❌ Sandbox failed so I made additional changes

The following are the logs from running the sandbox:

Sandbox logs for 91415cf ❌

trunk fmt `evaluator/evaluator.go` 1/2 ✓

Checked 1 file
✔ No issues

trunk check --fix --print-failures `evaluator/evaluator.go` 2/2 ❌ (`1`)

  ISSUES  
evaluator/evaluator.go:199:2
 199:2  high  undefined: pdf  golangci-lint/typecheck
 200:2  high  undefined: pdf  golangci-lint/typecheck
 202:2  high  undefined: pdf  golangci-lint/typecheck
Checked 2 files
✖ 3 new issues

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Step 3: 🔁 Code Review

Here are my self-reviews of my changes at sweep/add-swirl-effect.

Here is the 1st review

Thank you for your contribution. However, there are a few changes that need to be made before this PR is ready:

• The function SwirlEffect is not implemented. This function should take as input the flipbook pages and a parameter for the rate of rotation. It should apply a rotation transformation to each page, with the angle of rotation calculated as the current page number multiplied by the rate of rotation. Please implement this function in evaluator/evaluator.go.

• The function evalSwirlEffect(node, env) is called in the case for *ast.SwirlEffectStatement but it's not defined in the provided diff. Please implement this function in evaluator/evaluator.go.

• In the evalSave function, the rotation angle is not calculated as per the issue description. It's currently using img.Rotation instead of the current page number multiplied by the rate of rotation. Please correct this in evaluator/evaluator.go.

• Please ensure that all the necessary dependencies for the github.com/disintegration/imaging package are present in the current repository.

• Finally, please add tests to verify the new functionality.

Once these changes are made, we can move forward with merging this PR.

I finished incorporating these changes.

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