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Fix singlepass error when no function code present #680

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merged 4 commits into from
Aug 19, 2019
Merged

Fix singlepass error when no function code present #680

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439e81d
Fix singlepass error when no function code present
bjfish Aug 15, 2019
98d3e04
Fix unused mut warning
bjfish Aug 16, 2019
7b7f553
Merge branch 'master' into feature/fix-singlepass-panic-no-functions
bjfish Aug 17, 2019
38b1e3d
Merge branch 'master' into feature/fix-singlepass-panic-no-functions
bjfish Aug 19, 2019
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24 changes: 12 additions & 12 deletions lib/singlepass-backend/src/codegen_x64.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -404,22 +404,22 @@ impl ModuleCodeGenerator<X64FunctionCode, X64ExecutionContext, CodegenError>
mut self,
_: &ModuleInfo,
) -> Result<(X64ExecutionContext, Box<dyn CacheGen>), CodegenError> {
let (assembler, breakpoints) = match self.functions.last_mut() {
Some(x) => (x.assembler.take().unwrap(), x.breakpoints.take().unwrap()),
None => {
return Err(CodegenError {
message: "no function",
});
}
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@losfair the addition below is repeated in next_function, maybe it could be consolidated in the future.

let (assembler, function_labels, breakpoints) = match self.functions.last_mut() {
Some(x) => (
x.assembler.take().unwrap(),
x.function_labels.take().unwrap(),
x.breakpoints.take().unwrap(),
),
None => (
self.assembler.take().unwrap(),
self.function_labels.take().unwrap(),
HashMap::new(),
),
};

let total_size = assembler.get_offset().0;
let output = assembler.finalize().unwrap();

let function_labels = if let Some(x) = self.functions.last() {
x.function_labels.as_ref().unwrap()
} else {
self.function_labels.as_ref().unwrap()
};
let mut out_labels: Vec<FuncPtr> = vec![];
let mut out_offsets: Vec<AssemblyOffset> = vec![];

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