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Fix compile-time error in metaprogramming API when body of emit or lazy throws exception instead of returning value

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This commit is contained in:
Alexey Andreev 2017-02-05 17:28:40 +03:00
parent 5e44c13caf
commit 9271d71906
2 changed files with 25 additions and 13 deletions
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4
core/src/main/java/org/teavm/model/instructions/AssignInstruction.java
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@ -18,10 +18,6 @@ package org.teavm.model.instructions;
import org.teavm.model.Instruction;
import org.teavm.model.Variable;
/**
*
* @author Alexey Andreev
*/
public class AssignInstruction extends Instruction {
private Variable assignee;
private Variable receiver;

34
metaprogramming/impl/src/main/java/org/teavm/metaprogramming/impl/CompositeMethodGenerator.java
View File

@ -147,7 +147,10 @@ public class CompositeMethodGenerator {
returnBlockIndex = program.basicBlockCount() - 1;
for (int i = capturedValues.size(); i < template.variableCount(); ++i) {
program.createVariable();
VariableReader variable = template.variableAt(i);
Variable variableCopy = program.createVariable();
variableCopy.setDebugName(variable.getDebugName());
variableCopy.setLabel(variable.getLabel());
}
// Pre-create phis
@ -305,10 +308,11 @@ public class CompositeMethodGenerator {
add(insn);
return insn.getReceiver();
} else if (value instanceof ValueImpl) {
return varContext.emitVariable((ValueImpl<?>) value, new CallLocation(MetaprogrammingImpl.templateMethod,
location));
Variable result = varContext.emitVariable((ValueImpl<?>) value,
new CallLocation(MetaprogrammingImpl.templateMethod, location));
return coalesce(result);
} else if (value instanceof LazyValueImpl) {
return lazy((LazyValueImpl<?>) value);
return coalesce(lazy((LazyValueImpl<?>) value));
} else if (value instanceof ReflectFieldImpl) {
ReflectFieldImpl reflectField = (ReflectFieldImpl) value;
diagnostics.error(new CallLocation(MetaprogrammingImpl.templateMethod, location),
@ -356,7 +360,7 @@ public class CompositeMethodGenerator {
if (result instanceof ValueImpl) {
return ((ValueImpl<?>) result).innerValue;
} else if (result instanceof LazyValueImpl) {
return lazy((LazyValueImpl) result);
return lazy((LazyValueImpl<?>) result);
} else if (result != null) {
throw new IllegalStateException("Unknown value type: " + result.getClass().getName());
} else {
@ -364,6 +368,16 @@ public class CompositeMethodGenerator {
}
}
private Variable coalesce(Variable var) {
if (var == null) {
NullConstantInstruction nullInsn = new NullConstantInstruction();
nullInsn.setReceiver(program.createVariable());
var = nullInsn.getReceiver();
add(nullInsn);
}
return var;
}
Variable box(Variable var, ValueType type) {
if (type instanceof ValueType.Primitive) {
switch (((ValueType.Primitive) type).getKind()) {
@ -805,10 +819,12 @@ public class CompositeMethodGenerator {
if (type == InvocationType.VIRTUAL && instance != null) {
if (method.getClassName().equals(Value.class.getName())) {
if (method.getName().equals("get")) {
AssignInstruction insn = new AssignInstruction();
insn.setReceiver(var(receiver));
insn.setAssignee(var(instance));
add(insn);
if (receiver != null) {
AssignInstruction insn = new AssignInstruction();
insn.setReceiver(var(receiver));
insn.setAssignee(var(instance));
add(insn);
}
return;
} else {
diagnostics.error(new CallLocation(MetaprogrammingImpl.templateMethod, location),