sysio::chain::wasm_validations::maximum_function_stack_visitor Struct Reference

#include <wasm_sysio_validation.hpp>

Static Public Member Functions
static void	validate (const IR::Module &m)

Detailed Description

Definition at line 38 of file wasm_sysio_validation.hpp.

Member Function Documentation

validate()

void sysio::chain::wasm_validations::maximum_function_stack_visitor::validate ( const IR::Module & m )

static

Definition at line 62 of file wasm_sysio_validation.cpp.

                                                                 {
   for(const FunctionDef& func : m.functions.defs) {
      unsigned function_stack_usage = 0;
      for(const ValueType& local : func.nonParameterLocalTypes)
         function_stack_usage += getTypeBitWidth(local)/8;
      for(const ValueType& params : m.types[func.type.index]->parameters)
         function_stack_usage += getTypeBitWidth(params)/8;
 
      if(function_stack_usage > wasm_constraints::maximum_func_local_bytes)
         FC_THROW_EXCEPTION(wasm_execution_error, "Smart contract function has more than ${k} bytes of stack usage",
            ("k", wasm_constraints::maximum_func_local_bytes));
   }
}

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The documentation for this struct was generated from the following files:

• libraries/chain/include/sysio/chain/wasm_sysio_validation.hpp
• libraries/chain/wasm_sysio_validation.cpp