Trait glsl::visitor::Host

pub trait Host {
    fn visit<V>(&mut self, visitor: &mut V)
    where
        V: Visitor;
}

Part of the AST that can be visited.

You shouldn’t have to worry about this type nor how to implement it – it’s completely implemented for you. However, it works in a pretty simple way: any implementor of Host can be used with a Visitor.

The idea is that visiting an AST node is a two-step process:

• First, you can get your visitor called once as soon as an interesting node gets visited. For instance, if your visitor has an implementation for visiting expressions, everytime an expression gets visited, your visitor will run.
• If your implementation of visiting an AST node returns Visit::Children and if the given node has children, the visitor will go deeper, invoking other calls if you have defined any. A typical pattern you might want to do is to implement your visitor to gets run on all typenames. Since expressions contains variables, you will get your visitor called once again there.
• Notice that since visitors are mutable, you can accumulate a state as you go deeper in the AST to implement various checks and validations.

Required methods

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

Visit an AST node.

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Implementations on Foreign Types

impl<T> Host for Option<T> where
    T: Host, 

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl<T> Host for Box<T> where
    T: Host, 

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

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Implementors

impl Host for ArraySpecifier

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for AssignmentOp

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for BinaryOp

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for CaseLabel

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for Condition

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for Declaration

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for Expr

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for ExternalDeclaration

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for ForInitStatement

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for FunIdentifier

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for FunctionParameterDeclaration

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for Initializer

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for InterpolationQualifier

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for IterationStatement

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for JumpStatement

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for LayoutQualifierSpec

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for PrecisionQualifier

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for Preprocessor

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for PreprocessorExtensionBehavior

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for PreprocessorExtensionName

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for PreprocessorVersionProfile

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for SelectionRestStatement

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for SimpleStatement

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for Statement

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for StorageQualifier

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for TypeQualifierSpec

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for TypeSpecifierNonArray

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for UnaryOp

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for ArrayedIdentifier

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for Block

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for CompoundStatement

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for ForRestStatement

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for FullySpecifiedType

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for FunctionDefinition

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for FunctionParameterDeclarator

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for FunctionPrototype

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for Identifier

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for InitDeclaratorList

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for LayoutQualifier

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for PreprocessorDefine

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for PreprocessorExtension

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for PreprocessorVersion

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for SelectionStatement

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for SingleDeclaration

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for SingleDeclarationNoType

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for StructFieldSpecifier

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for StructSpecifier

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for SwitchStatement

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for TranslationUnit

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for TypeName

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for TypeQualifier

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

impl Host for TypeSpecifier

fn visit<V>(&mut self, visitor: &mut V) where
    V: Visitor, 

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