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Dump Ast

Parse JS code through OXC and display ESTree JSON AST. Use proactively when implementing codegen, transforms, or debugging to understand how OXC represents a specific JS/TS construct in its AST. MUST use this skill before writing any new AST node construction in builder.rs, before implementing a new codegen visitor, or when unsure how OXC represents a JS pattern (destructuring, spread, optional chaining, etc.). Also use when debugging AST mismatch issues or when porting a new Svelte feature that involves JS expression handling. Use when this capability is needed.

tomevault-io Updated
Web & Frontend

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Dump OXC AST: $ARGUMENTS

Parses JavaScript through OXC and displays ESTree-compatible JSON AST.

Step 1: Parse

just dump-ast '$ARGUMENTS'

Step 2: Display

Show the JSON output.

If parsing fails:

  • Wrap in parentheses if OXC expects a statement: ($ARGUMENTS)
  • Try as module-level code if it's a declaration

When to use proactively

Use this skill whenever you need to understand how OXC represents a specific JS construct — for example when implementing codegen, writing transforms, or debugging parser output mismatches.

Source: MrWaip/svelte-rs-2 — distributed by TomeVault.

tomevault-io/skills-registry/tree/main/mrwaip--svelte-rs-2--dump-ast commit be607e9ccd

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npx skillmds@latest add tomevault-io/dump-ast