pub struct FuncValidator<T> { /* private fields */ }
Expand description

Validation context for a WebAssembly function.

This structure is created by Validator::code_section_entry and is created per-function in a WebAssembly module. This structure is suitable for sending to other threads while the original Validator continues processing other functions.

Implementations

Creates a new FuncValidator.

The returned FuncValidator can be used to validate a function with the type ty specified. The resources indicate what the containing module has for the function to use, and the features configure what WebAssembly proposals are enabled for this function.

The returned validator can be used to then parse a FunctionBody, for example, to read locals and validate operators.

Get the current height of the operand stack.

This returns the height of the whole operand stack for this function, not just for the current control frame.

Convenience function to validate an entire function’s body.

You may not end up using this in final implementations because you’ll often want to interleave validation with parsing.

Reads the local defintions from the given BinaryReader, often sourced from a FunctionBody.

This function will automatically advance the BinaryReader forward, leaving reading operators up to the caller afterwards.

Defines locals into this validator.

This should be used if the application is already reading local definitions and there’s no need to re-parse the function again.

Validates the next operator in a function.

This functions is expected to be called once-per-operator in a WebAssembly function. Each operator’s offset in the original binary and the operator itself are passed to this function to provide more useful error messages.

Function that must be called after the last opcode has been processed.

This will validate that the function was properly terminated with the end opcode. If this function is not called then the function will not be properly validated.

The offset provided to this function will be used as a position for an error if validation fails.

Returns the underlying module resources that this validator is using.

The index of the function within the module’s function index space that is being validated.

Trait Implementations

The result type of the visitor.

Visits the Operator op using the given offset. Read more

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

Returns the argument unchanged.

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.