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Improve loom.mixin error message now that the AP is disabled by default. #1383

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Merged
merged 1 commit into from
Oct 5, 2025
Merged

Improve loom.mixin error message now that the AP is disabled by default. #1383

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4 changes: 3 additions & 1 deletion src/main/java/net/fabricmc/loom/extension/MixinExtensionApiImpl.java
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Original file line number Diff line number Diff line change
Expand Up @@ -40,6 +40,8 @@
import net.fabricmc.loom.api.mappings.layered.MappingsNamespace;

public abstract class MixinExtensionApiImpl implements MixinExtensionAPI {
static final String MIXIN_AP_DISABLED_ERROR = "The mixin annotation is no longer enabled by default, you should remove any loom.mixin configuration. If you wish to continue to use the mixin AP you can set useLegacyMixinAp = true.";

protected final Project project;
protected final Property<Boolean> useMixinAp;
private final Property<String> refmapTargetNamespace;
Expand Down Expand Up @@ -75,7 +77,7 @@ public Property<Boolean> getUseLegacyMixinAp() {

@Override
public Property<String> getRefmapTargetNamespace() {
if (!getUseLegacyMixinAp().get()) throw new IllegalStateException("You need to set useLegacyMixinAp = true to configure Mixin annotation processor.");
if (!getUseLegacyMixinAp().get()) throw new IllegalStateException(MIXIN_AP_DISABLED_ERROR);

return refmapTargetNamespace;
}
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4 changes: 2 additions & 2 deletions src/main/java/net/fabricmc/loom/extension/MixinExtensionImpl.java
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Expand Up @@ -68,7 +68,7 @@ public MixinExtensionImpl(Project project) {

@Override
public Property<String> getDefaultRefmapName() {
if (!super.getUseLegacyMixinAp().get()) throw new IllegalStateException("You need to set useLegacyMixinAp = true to configure Mixin annotation processor.");
if (!super.getUseLegacyMixinAp().get()) throw new IllegalStateException(MIXIN_AP_DISABLED_ERROR);

return defaultRefmapName;
}
Expand All @@ -81,7 +81,7 @@ private String getDefaultMixinRefmapName() {

@Override
protected PatternSet add0(SourceSet sourceSet, Provider<String> refmapName) {
if (!super.getUseLegacyMixinAp().get()) throw new IllegalStateException("You need to set useLegacyMixinAp = true to configure Mixin annotation processor.");
if (!super.getUseLegacyMixinAp().get()) throw new IllegalStateException(MIXIN_AP_DISABLED_ERROR);

PatternSet pattern = new PatternSet().setIncludes(Collections.singletonList("**/*.json"));
MixinExtension.setMixinInformationContainer(sourceSet, new MixinExtension.MixinInformationContainer(sourceSet, refmapName, pattern));
Expand Down