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-rw-r--r--src/wasm/wasm-validator.cpp35
1 files changed, 35 insertions, 0 deletions
diff --git a/src/wasm/wasm-validator.cpp b/src/wasm/wasm-validator.cpp
index 532529d2a..75cbcf53a 100644
--- a/src/wasm/wasm-validator.cpp
+++ b/src/wasm/wasm-validator.cpp
@@ -424,6 +424,7 @@ public:
void visitMemoryGrow(MemoryGrow* curr);
void visitRefNull(RefNull* curr);
void visitRefIs(RefIs* curr);
+ void visitRefAs(RefAs* curr);
void visitRefFunc(RefFunc* curr);
void visitRefEq(RefEq* curr);
void visitTableGet(TableGet* curr);
@@ -2125,6 +2126,40 @@ void FunctionValidator::visitRefIs(RefIs* curr) {
"ref.is_*'s argument should be a reference type");
}
+void FunctionValidator::visitRefAs(RefAs* curr) {
+ switch (curr->op) {
+ default:
+ // TODO: validate all the other ref.as_*
+ break;
+ case ExternInternalize: {
+ shouldBeTrue(getModule()->features.hasGC(),
+ curr,
+ "extern.internalize requries GC to be enabled");
+ if (curr->type == Type::unreachable) {
+ return;
+ }
+ shouldBeSubType(curr->value->type,
+ Type(HeapType::ext, Nullable),
+ curr->value,
+ "extern.internalize value should be an externref");
+ break;
+ }
+ case ExternExternalize: {
+ shouldBeTrue(getModule()->features.hasGC(),
+ curr,
+ "extern.externalize requries GC to be enabled");
+ if (curr->type == Type::unreachable) {
+ return;
+ }
+ shouldBeSubType(curr->value->type,
+ Type(HeapType::any, Nullable),
+ curr->value,
+ "extern.externalize value should be an anyref");
+ break;
+ }
+ }
+}
+
void FunctionValidator::visitRefFunc(RefFunc* curr) {
// If we are not in a function, this is a global location like a table. We
// allow RefFunc there as we represent tables that way regardless of what