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use "java/lang/Object" as fallback type for NULL values

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This commit is contained in:
Volker Berlin 2022-05-08 18:53:45 +02:00
parent 23199840c8
commit 52dd9a1665
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GPG Key ID: 988423EF815BE4CB
1 changed files with 21 additions and 14 deletions
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9
src/de/inetsoftware/jwebassembly/module/JavaMethodWasmCodeBuilder.java
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@ -967,6 +967,7 @@ class JavaMethodWasmCodeBuilder extends WasmCodeBuilder {
int size = instructions.size();
for( int i = 0; i < size; i++ ) {
WasmInstruction instr = instructions.get( i );
try {
if( instr.getType() == Type.Struct ) {
WasmStructInstruction structInst = (WasmStructInstruction)instr;
if( structInst.getOperator() == StructOperator.NULL ) {
@ -976,7 +977,10 @@ class JavaMethodWasmCodeBuilder extends WasmCodeBuilder {
count -= nextInstr.getPopCount();
if( count < 0 ) {
AnyType[] popValueTypes = nextInstr.getPopValueTypes();
structInst.setStructType( (StructType)popValueTypes[-1 - count] );
AnyType type = popValueTypes[-1 - count];
// is the fallback to java/lang/Object right? There can also be a NULL value for external.
StructType structType = type instanceof StructType ? (StructType)type : getTypeManager().valueOf( "java/lang/Object" );
structInst.setStructType( structType );
break;
}
if( nextInstr.getPushValueType() != null ) {
@ -985,6 +989,9 @@ class JavaMethodWasmCodeBuilder extends WasmCodeBuilder {
}
}
}
} catch( Exception ex ) {
throw WasmException.create( ex, instr.getLineNumber() );
}
}
}