Understanding Anchor Macros

Chapter 4: Understanding Anchor Macros

Anchor uses macros to streamline Solana program development.

Macros

• declare_id!(): Sets the program’s on-chain address.

• #[program]: Defines instruction handlers.

• #[derive(Accounts)]: Specifies accounts for instructions.

• #[error_code]: Defines custom error types.

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Page Layout:

• Header: Fixed top bar with "Solana Learn" logo, navigation, and profile icon.

• Main Content:

  • Left Panel (60%): This text content.

  • Right Panel (40%): Code snippets for each macro.

• Footer: Link to Anchor Macro Docs.

Visuals:

• Code Snippets: Highlighted examples (e.g., declare_id!("...")).

• Icons: Key (declare_id!), Gear (#[program]).

Interactivity:

• Hover over snippets to highlight macro usage.