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[dart2wasm] Add noSuchMethod forwarders.

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Change-Id: I30ac0bf31969a6b2930323dae73f52389702ab2a
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/251588
Commit-Queue: Joshua Litt <joshualitt@google.com>
Reviewed-by: Aske Simon Christensen <askesc@google.com>
This commit is contained in:
Joshua Litt 2022-07-28 02:18:34 +00:00 committed by Commit Bot
parent e1933cd4a0
commit 15a2ef2449
1 changed files with 53 additions and 2 deletions
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55
pkg/dart2wasm/lib/target.dart
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@ -33,6 +33,9 @@ class WasmTarget extends Target {
Class? _oneByteString;
Class? _twoByteString;
@override
bool get enableNoSuchMethodForwarders => true;
@override
ConstantsBackend get constantsBackend => const ConstantsBackend();
@ -177,10 +180,55 @@ class WasmTarget extends Target {
wasmTrans.transformProcedure(procedure, coreTypes, hierarchy);
}
Expression _instantiateInvocation(
CoreTypes coreTypes, String name, Arguments arguments) {
if (name.startsWith("set:")) {
name = name.substring(4);
Procedure invocationSetter = coreTypes.invocationClass.procedures
.firstWhere((c) => c.name.text == "setter");
return StaticInvocation(invocationSetter,
Arguments([SymbolLiteral(name), arguments.positional.single]));
} else if (name.startsWith("get:")) {
Procedure invocationGetter = coreTypes.invocationClass.procedures
.firstWhere((c) => c.name.text == "getter");
return StaticInvocation(
invocationGetter, Arguments([SymbolLiteral(name)]));
} else if (arguments.types.isEmpty) {
Procedure invocationMethod = coreTypes.invocationClass.procedures
.firstWhere((c) => c.name.text == "method");
return StaticInvocation(
invocationMethod,
Arguments([
SymbolLiteral(name),
ListLiteral(arguments.positional),
MapLiteral(List<MapLiteralEntry>.from(
arguments.named.map((NamedExpression arg) {
return MapLiteralEntry(SymbolLiteral(arg.name), arg.value);
})), keyType: coreTypes.symbolNonNullableRawType)
..isConst = (arguments.named.isEmpty)
]));
} else {
Procedure invocationGenericMethod = coreTypes.invocationClass.procedures
.firstWhere((c) => c.name.text == "genericMethod");
return StaticInvocation(
invocationGenericMethod,
Arguments([
SymbolLiteral(name),
ListLiteral(arguments.types.map((t) => TypeLiteral(t)).toList()),
ListLiteral(arguments.positional),
MapLiteral(List<MapLiteralEntry>.from(
arguments.named.map((NamedExpression arg) {
return new MapLiteralEntry(SymbolLiteral(arg.name), arg.value);
})), keyType: coreTypes.symbolNonNullableRawType)
..isConst = (arguments.named.isEmpty)
]));
}
}
@override
Expression instantiateInvocation(CoreTypes coreTypes, Expression receiver,
String name, Arguments arguments, int offset, bool isSuper) {
throw "Unsupported: instantiateInvocation";
return _instantiateInvocation(coreTypes, name, arguments);
}
Expression instantiateNoSuchMethodError(CoreTypes coreTypes,
@ -195,7 +243,10 @@ class WasmTarget extends Target {
bool isStatic: false,
bool isConstructor: false,
bool isTopLevel: false}) {
throw "Unsupported: instantiateNoSuchMethodError";
return ConstructorInvocation(
coreTypes.noSuchMethodErrorDefaultConstructor,
Arguments(
[receiver, _instantiateInvocation(coreTypes, name, arguments)]));
}
@override