diff options
Diffstat (limited to 'dhall')
| -rw-r--r-- | dhall/src/normalize.rs | 25 |
1 files changed, 16 insertions, 9 deletions
diff --git a/dhall/src/normalize.rs b/dhall/src/normalize.rs index ec25010..9e7c531 100644 --- a/dhall/src/normalize.rs +++ b/dhall/src/normalize.rs @@ -667,11 +667,16 @@ fn normalize_whnf(ctx: NormalizationContext, expr: InputSubExpr) -> WHNF { match b { WHNF::BoolLit(true) => normalize_whnf(ctx, e1.clone()), WHNF::BoolLit(false) => normalize_whnf(ctx, e2.clone()), - _ => normalize_last_layer(ExprF::BoolIf( - b, - normalize_whnf(ctx.clone(), e1.clone()), - normalize_whnf(ctx, e2.clone()), - )), + b => { + let e1 = normalize_whnf(ctx.clone(), e1.clone()); + let e2 = normalize_whnf(ctx, e2.clone()); + match (e1, e2) { + (WHNF::BoolLit(true), WHNF::BoolLit(false)) => b, + (e1, e2) => { + normalize_last_layer(ExprF::BoolIf(b, e1, e2)) + } + } + } } } expr => { @@ -736,6 +741,8 @@ fn normalize_last_layer(expr: ExprF<WHNF, Label, X, X>) -> WHNF { x.append(&mut y); TextLit(x) } + ExprF::BinOp(TextAppend, TextLit(x), y) if x.is_empty() => y, + ExprF::BinOp(TextAppend, x, TextLit(y)) if y.is_empty() => x, ExprF::Field(UnionType(ctx, kts), l) => UnionConstructor(ctx, l, kts), ExprF::Field(RecordLit(mut kvs), l) => match kvs.remove(&l) { @@ -981,7 +988,7 @@ mod spec_tests { // norm!(success_unit_IfAlternativesIdentical, "unit/IfAlternativesIdentical"); norm!(success_unit_IfFalse, "unit/IfFalse"); norm!(success_unit_IfNormalizePredicateAndBranches, "unit/IfNormalizePredicateAndBranches"); - // norm!(success_unit_IfTrivial, "unit/IfTrivial"); + norm!(success_unit_IfTrivial, "unit/IfTrivial"); norm!(success_unit_IfTrue, "unit/IfTrue"); norm!(success_unit_Integer, "unit/Integer"); norm!(success_unit_IntegerNegative, "unit/IntegerNegative"); @@ -1075,9 +1082,9 @@ mod spec_tests { norm!(success_unit_OperatorPlusNormalizeArguments, "unit/OperatorPlusNormalizeArguments"); norm!(success_unit_OperatorPlusOneAndOne, "unit/OperatorPlusOneAndOne"); norm!(success_unit_OperatorPlusRhsZero, "unit/OperatorPlusRhsZero"); - // norm!(success_unit_OperatorTextConcatenateLhsEmpty, "unit/OperatorTextConcatenateLhsEmpty"); - // norm!(success_unit_OperatorTextConcatenateNormalizeArguments, "unit/OperatorTextConcatenateNormalizeArguments"); - // norm!(success_unit_OperatorTextConcatenateRhsEmpty, "unit/OperatorTextConcatenateRhsEmpty"); + norm!(success_unit_OperatorTextConcatenateLhsEmpty, "unit/OperatorTextConcatenateLhsEmpty"); + norm!(success_unit_OperatorTextConcatenateNormalizeArguments, "unit/OperatorTextConcatenateNormalizeArguments"); + norm!(success_unit_OperatorTextConcatenateRhsEmpty, "unit/OperatorTextConcatenateRhsEmpty"); norm!(success_unit_OperatorTextConcatenateTextText, "unit/OperatorTextConcatenateTextText"); norm!(success_unit_OperatorTimesLhsOne, "unit/OperatorTimesLhsOne"); norm!(success_unit_OperatorTimesLhsZero, "unit/OperatorTimesLhsZero"); |