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support nested pattern matches on tag unions

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This commit is contained in:
Folkert 2020-03-20 22:14:38 +01:00
parent 0f22cbbf7d
commit 655dc32098
2 changed files with 58 additions and 36 deletions
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19
compiler/gen/src/crane/build.rs
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@ -330,7 +330,7 @@ pub fn build_expr<'a, B: Backend>(
let mem_flags = MemFlags::new();
let expr = build_expr(env, scope, module, builder, expr, procs);
let ret_type = layout_to_type(&field_layout, cfg.pointer_type());
let ret_type = type_from_layout(cfg, field_layout);
return builder
.ins()
@ -426,21 +426,6 @@ pub fn build_expr<'a, B: Backend>(
}
}
fn layout_to_type<'a>(layout: &Layout<'a>, _pointer_type: Type) -> Type {
use roc_mono::layout::Builtin::*;
match layout {
Layout::Builtin(builtin) => match builtin {
Int64 => cranelift::prelude::types::I64,
Byte => cranelift::prelude::types::I8,
Bool => cranelift::prelude::types::B1,
Float64 => cranelift::prelude::types::F64,
other => panic!("I don't yet know how to make a type from {:?}", other),
},
other => panic!("I don't yet know how to make a type from {:?}", other),
}
}
struct Branch2<'a> {
cond: &'a Expr<'a>,
cond_layout: &'a Layout<'a>,
@ -570,7 +555,7 @@ fn build_switch<'a, B: Backend>(
let mem_flags = MemFlags::new();
let ret_type = layout_to_type(&new_cond_layout, env.cfg.pointer_type());
let ret_type = type_from_layout(env.cfg, &new_cond_layout);
builder
.ins()