The parsing passes are a collection of operations that mutate/rewrite parts of the parse tree in trivial/obvious ways. These passes are logically part of parsing the literal text of the soy file and each one could theoretically be done as part of the parser, but for maintainability it is easier to pull them out into separate passes. It is expected that each of these passes will mutate the AST in critical ways.

The default initial parsing passes are:

• RewriteGenderMsgsVisitor
• RewriteRemaindersVisitor
• SetFullCalleeNamesVisitor
• ResolveExpressionTypesVisitor
• ResolveNamesVisitor
• ResolvePackageRelativeCssNamesVisitor
• VerifyPhnameAttrOnlyOnPlaceholdersVisitor
• SubstituteGlobalsVisitorPass