findFontVariableDeclaration() — ui Function Reference

Architecture documentation for the findFontVariableDeclaration() function in update-fonts.ts from the ui codebase.

Function typescript FrameworkTooling TemplateSync called by 1

Entity Profile

FrameworkTooling→ TemplateSync→ findFontVariableDeclaration() — ui Function Reference

Dependency Diagram

graph TD
  9ba1007e_24de_419b_d022_c5f5ead52043["findFontVariableDeclaration()"]
  b169f1bf_76c5_e7c9_f493_15fe0f296591["update-fonts.ts"]
  9ba1007e_24de_419b_d022_c5f5ead52043 -->|defined in| b169f1bf_76c5_e7c9_f493_15fe0f296591
  fb488c27_d35b_ddbe_26c7_6bfb5c38105a["transformLayoutFonts()"]
  fb488c27_d35b_ddbe_26c7_6bfb5c38105a -->|calls| 9ba1007e_24de_419b_d022_c5f5ead52043
  style 9ba1007e_24de_419b_d022_c5f5ead52043 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

packages/shadcn/src/utils/updaters/update-fonts.ts lines 293–323

function findFontVariableDeclaration(
  sourceFile: ReturnType<Project["createSourceFile"]>,
  variable: string
) {
  // Find variable declarations that call a font function with matching variable.
  const variableStatements = sourceFile.getVariableStatements()

  for (const statement of variableStatements) {
    for (const declaration of statement.getDeclarations()) {
      const initializer = declaration.getInitializer()
      if (!initializer) continue

      // Check if it's a call expression.
      if (initializer.getKind() !== SyntaxKind.CallExpression) continue

      const callExpr = initializer as CallExpression

      // Get the arguments.
      const args = callExpr.getArguments()
      if (args.length === 0) continue

      // Check if any argument contains our variable.
      const argText = args[0].getText()
      if (argText.includes(`variable:`) && argText.includes(variable)) {
        return declaration
      }
    }
  }

  return null
}