846db00a21
Give these crates each a more standard directory layout with sources in a 'src' sub-sirectory and Cargo.toml in the top lib/foo directory. Add license and description fields to each. The build script for the cretonne crate now lives in 'lib/cretonne/build.rs' separating it from the normal library sources under 'lib/cretonne/src'.
46 lines
1.1 KiB
Rust
46 lines
1.1 KiB
Rust
//! Stack slots.
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//!
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//! The `StackSlotData` struct keeps track of a single stack slot in a function.
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//!
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use std::fmt::{self, Display, Formatter};
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/// Contents of a stack slot.
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#[derive(Clone, Debug)]
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pub struct StackSlotData {
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/// Size of stack slot in bytes.
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pub size: u32,
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}
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impl StackSlotData {
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/// Create a stack slot with the specified byte size.
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pub fn new(size: u32) -> StackSlotData {
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StackSlotData { size: size }
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}
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}
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impl Display for StackSlotData {
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fn fmt(&self, fmt: &mut Formatter) -> fmt::Result {
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write!(fmt, "stack_slot {}", self.size)
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}
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}
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#[cfg(test)]
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mod tests {
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use ir::Function;
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use super::StackSlotData;
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#[test]
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fn stack_slot() {
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let mut func = Function::new();
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let ss0 = func.stack_slots.push(StackSlotData::new(4));
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let ss1 = func.stack_slots.push(StackSlotData::new(8));
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assert_eq!(ss0.to_string(), "ss0");
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assert_eq!(ss1.to_string(), "ss1");
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assert_eq!(func.stack_slots[ss0].size, 4);
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assert_eq!(func.stack_slots[ss1].size, 8);
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}
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}
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