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Fix gas metering #18

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Fix gas metering #18

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6 changes: 2 additions & 4 deletions src/gas_metering/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -593,17 +593,15 @@ pub fn inject<R: Rules>(raw_wasm: &[u8], rules: &R, gas_module_name: &str) -> Re
let mut func_builder = wasm_encoder::Function::new(copy_locals(&func_body)?);

// Go through instructions, increment all global gets
// todo this is wrong, can have imports at lower index??
let mut operator_reader = func_body.get_operators_reader()?;
while !operator_reader.eof() {
let op = operator_reader.read()?;
match op {
// todo if > gas global??
Operator::GlobalGet { global_index } => {
func_builder.instruction(&Instruction::GlobalGet(global_index + 1))
func_builder.instruction(&Instruction::GlobalGet(if global_index >= gas_global {global_index + 1} else {global_index}))
}
Operator::GlobalSet { global_index } => {
func_builder.instruction(&Instruction::GlobalSet(global_index + 1))
func_builder.instruction(&Instruction::GlobalSet(if global_index >= gas_global {global_index + 1} else {global_index}))
}
op => func_builder.instruction(&DefaultTranslator.translate_op(&op)?),
};
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