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## Why this should be merged In lieu of modifications to `core.IntrinsicGas()`, required for support of Warp in SAE. If we were to introduce variadic `options.Option`s to `IntrinsicGas()`, it's impossible to guarantee that they would always be passed. The `types.Transaction` itself isn't actually passed to `IntrinsicGas()` either, so we can't rely on it to carry payloads/hooks. ## How this works `vm.Hooks` are extended to include `PreprocessingGasCharge(tx common.Hash) (uint64, error)`, which returns the amount of gas to be charged between `core.IntrinsicGas` and `vm.EVM` execution charges. The two entry points to execution, `vm.EVM.Call()` and `vm.EVM.Create()` are modified to first spend said charge before running upstream logic. The new hook is defined on a separate interface definition, embedded in `vm.Hooks`, to allow types to implement just that method and enforce it with the `var _ vm.Preprocessor = (*impl)(nil)` pattern. ## How this was tested Integration tests via both `core.ApplyTransaction()` and `core.ApplyMessage()`. The former is more comprehensive, while the latter allows for inspection of interim error values. --------- Signed-off-by: Arran Schlosberg <519948+ARR4N@users.noreply.github.com> Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> Co-authored-by: Austin Larson <78000745+alarso16@users.noreply.github.com> |
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| .. | ||
| runtime | ||
| testdata | ||
| analysis.go | ||
| analysis_test.go | ||
| common.go | ||
| contract.go | ||
| contracts.go | ||
| contracts.libevm.go | ||
| contracts.libevm_test.go | ||
| contracts_fuzz_test.go | ||
| contracts_pkg_vm.libevm_test.go | ||
| contracts_test.go | ||
| doc.go | ||
| eips.go | ||
| environment.libevm.go | ||
| errors.go | ||
| evm.go | ||
| evm.libevm.go | ||
| evm.libevm_test.go | ||
| gas.go | ||
| gas_table.go | ||
| gas_table_test.go | ||
| hooks.libevm.go | ||
| instructions.go | ||
| instructions_test.go | ||
| interface.go | ||
| interface.libevm.go | ||
| interpreter.go | ||
| interpreter_test.go | ||
| jump_table.go | ||
| jump_table_export.go | ||
| jump_table_test.go | ||
| libevm_test.go | ||
| logger.go | ||
| memory.go | ||
| memory_table.go | ||
| memory_test.go | ||
| opcodes.go | ||
| operations_acl.go | ||
| options.libevm.go | ||
| preprocess.libevm_test.go | ||
| stack.go | ||
| stack.libevm.go | ||
| stack.libevm_test.go | ||
| stack_table.go | ||