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Brian Carroll 2021-10-17 11:19:10 +02:00
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compiler/gen_wasm/src/code_builder.rs
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@ -30,6 +30,10 @@ pub struct CodeBuilder {
/// Extra instructions to insert at specific positions during finalisation /// Extra instructions to insert at specific positions during finalisation
/// (Go back and set locals when we realise we need them) /// (Go back and set locals when we realise we need them)
/// We need BTree rather than Map or Vec, to ensure keys are sorted.
/// Entries may not be added in order. They are created when a Symbol
/// is used for the second time, or is in an inconvenient VM stack position,
/// so it's not a simple predictable order.
insertions: BTreeMap<usize, Instruction>, insertions: BTreeMap<usize, Instruction>,
/// Our simulation model of the Wasm stack machine /// Our simulation model of the Wasm stack machine