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use crate::stable_mir::ty::Ty;
#[derive(Clone, Debug)]
pub struct Body {
pub blocks: Vec<BasicBlock>,
pub locals: Vec<Ty>,
}
#[derive(Clone, Debug)]
pub struct BasicBlock {
pub statements: Vec<Statement>,
pub terminator: Terminator,
}
#[derive(Clone, Debug)]
pub enum Terminator {
Goto {
target: usize,
},
SwitchInt {
discr: Operand,
targets: Vec<SwitchTarget>,
otherwise: usize,
},
Resume,
Abort,
Return,
Unreachable,
Drop {
place: Place,
target: usize,
unwind: UnwindAction,
},
Call {
func: Operand,
args: Vec<Operand>,
destination: Place,
target: Option<usize>,
unwind: UnwindAction,
},
Assert {
cond: Operand,
expected: bool,
msg: AssertMessage,
target: usize,
unwind: UnwindAction,
},
GeneratorDrop,
}
#[derive(Clone, Debug)]
pub enum UnwindAction {
Continue,
Unreachable,
Terminate,
Cleanup(usize),
}
#[derive(Clone, Debug)]
pub enum AssertMessage {
BoundsCheck { len: Operand, index: Operand },
Overflow(BinOp, Operand, Operand),
OverflowNeg(Operand),
DivisionByZero(Operand),
RemainderByZero(Operand),
ResumedAfterReturn(GeneratorKind),
ResumedAfterPanic(GeneratorKind),
MisalignedPointerDereference { required: Operand, found: Operand },
}
#[derive(Clone, Debug)]
pub enum BinOp {
Add,
Sub,
Mul,
Div,
Rem,
BitXor,
BitAnd,
BitOr,
Shl,
Shr,
Eq,
Lt,
Le,
Ne,
Ge,
Gt,
Offset,
}
#[derive(Clone, Debug)]
pub enum UnOp {
Not,
Neg,
}
#[derive(Clone, Debug)]
pub enum GeneratorKind {
Async(AsyncGeneratorKind),
Gen,
}
#[derive(Clone, Debug)]
pub enum AsyncGeneratorKind {
Block,
Closure,
Fn,
}
#[derive(Clone, Debug)]
pub enum Statement {
Assign(Place, Rvalue),
Nop,
}
// FIXME this is incomplete
#[derive(Clone, Debug)]
pub enum Rvalue {
Use(Operand),
CheckedBinaryOp(BinOp, Operand, Operand),
UnaryOp(UnOp, Operand),
}
#[derive(Clone, Debug)]
pub enum Operand {
Copy(Place),
Move(Place),
Constant(String),
}
#[derive(Clone, Debug)]
pub struct Place {
pub local: usize,
pub projection: String,
}
#[derive(Clone, Debug)]
pub struct SwitchTarget {
pub value: u128,
pub target: usize,
}
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