Clean.
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@ -144,10 +144,10 @@ impl Compiler {
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context.step(instruction)?;
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let (if_not, end_label) = {
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// TODO: We will have to place this before validation step to ensure that
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// the block type is indeed if_true.
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let top_label = self.label_stack.last().unwrap();
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let top_label = self.label_stack.last().expect(
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"label_stack should reflect the frame stack;
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frame stack is never empty while being processed; qed",
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);
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let (if_not, end_label) = match *top_label {
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BlockFrameType::IfTrue { if_not, end_label } => (if_not, end_label),
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_ => panic!("validation ensures that the top frame is actually if_true"),
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@ -187,11 +187,10 @@ impl Compiler {
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context.step(instruction)?;
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// let started_with = started_with.expect("validation ensures that it is ok");
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// TODO: We will have to place this before validation step to ensure that
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// the block type is indeed if_true.
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let frame_type = self.label_stack.last().cloned().unwrap();
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let frame_type = self.label_stack.last().cloned().expect(
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"label_stack should reflect the frame stack;
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frame stack is never empty while being processed; qed",
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);
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if let BlockFrameType::IfTrue { if_not, .. } = frame_type {
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// Resolve `if_not` label. If the `if's` condition doesn't hold the control will jump
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@ -206,7 +205,6 @@ impl Compiler {
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}
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if let Some(drop_keep) = return_drop_keep {
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// TODO: The last one.
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// It was the last instruction. Emit the explicit return instruction.
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let drop_keep = drop_keep.expect("validation should ensure this doesn't fail");
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self.sink.emit(isa::InstructionInternal::Return(drop_keep));
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