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TypeAssert refactor

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This commit is contained in:
xushiwei
2024-05-23 01:34:48 +08:00
parent a4c4324ba3
commit 4986592dd7
4 changed files with 15 additions and 16 deletions
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19
ssa/interface.go
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@@ -41,7 +41,7 @@ func (b Builder) abiStruct(t *types.Struct) Expr {
g := pkg.VarOf(name)
if g == nil {
prog := b.Prog
g := pkg.doNewVar(name, prog.AbiTypePtrPtr())
g = pkg.doNewVar(name, prog.AbiTypePtrPtr())
g.Init(prog.Null(g.Type))
}
pkg.abitys = append(pkg.abitys, func() {
@@ -293,16 +293,13 @@ func (b Builder) TypeAssert(x Expr, assertedTyp Type, commaOk bool) Expr {
tabi := b.abiType(assertedTyp.raw.Type)
eq := b.BinOp(token.EQL, tx, tabi)
if commaOk {
/*
prog := b.Prog
t := prog.Tuple(assertedTyp, prog.Bool())
val := b.valFromData(assertedTyp, b.InterfaceData(x))
zero := prog.Zero(assertedTyp)
valTrue := aggregateValue(b.impl, t.ll, val.impl, prog.BoolVal(true).impl)
valFalse := aggregateValue(b.impl, t.ll, zero.impl, prog.BoolVal(false).impl)
return Expr{llvm.CreateSelect(b.impl, eq.impl, valTrue, valFalse), t}
*/
panic("todo")
prog := b.Prog
t := prog.Tuple(assertedTyp, prog.Bool())
val := b.valFromData(assertedTyp, b.InterfaceData(x))
zero := prog.Zero(assertedTyp)
valTrue := aggregateValue(b.impl, t.ll, val.impl, prog.BoolVal(true).impl)
valFalse := aggregateValue(b.impl, t.ll, zero.impl, prog.BoolVal(false).impl)
return Expr{llvm.CreateSelect(b.impl, eq.impl, valTrue, valFalse), t}
}
blks := b.Func.MakeBlocks(2)
b.If(eq, blks[0], blks[1])