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Merge pull request #147 from mkouba/signature-from
Introduce SignatureBuilder API
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91 changes: 91 additions & 0 deletions
91
src/main/java/io/quarkus/gizmo/ClassSignatureBuilderImpl.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,91 @@ | ||
| package io.quarkus.gizmo; | ||
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| import java.util.ArrayList; | ||
| import java.util.List; | ||
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| import io.quarkus.gizmo.SignatureBuilder.ClassSignatureBuilder; | ||
| import io.quarkus.gizmo.Type.ClassType; | ||
| import io.quarkus.gizmo.Type.ParameterizedType; | ||
| import io.quarkus.gizmo.Type.TypeVariable; | ||
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| class ClassSignatureBuilderImpl implements ClassSignatureBuilder { | ||
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| List<TypeVariable> typeParameters = new ArrayList<>(); | ||
| Type superClass = ClassType.OBJECT; | ||
| List<Type> superInterfaces = new ArrayList<>(); | ||
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| @Override | ||
| public String build() { | ||
| StringBuilder signature = new StringBuilder(); | ||
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| // type params | ||
| if (!typeParameters.isEmpty()) { | ||
| signature.append('<'); | ||
| for (TypeVariable typeParameter : typeParameters) { | ||
| typeParameter.appendTypeParameterToSignature(signature); | ||
| } | ||
| signature.append('>'); | ||
| } | ||
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| // superclass | ||
| superClass.appendToSignature(signature); | ||
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| // interfaces | ||
| if (!superInterfaces.isEmpty()) { | ||
| for (Type superInterface : superInterfaces) { | ||
| superInterface.appendToSignature(signature); | ||
| } | ||
| } | ||
| return signature.toString(); | ||
| } | ||
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| @Override | ||
| public ClassSignatureBuilder addTypeParameter(TypeVariable typeParameter) { | ||
| typeParameters.add(typeParameter); | ||
| return this; | ||
| } | ||
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| @Override | ||
| public ClassSignatureBuilder setSuperClass(ClassType superClass) { | ||
| this.superClass = superClass; | ||
| return this; | ||
| } | ||
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| @Override | ||
| public ClassSignatureBuilder setSuperClass(ParameterizedType superClass) { | ||
| if (containsWildcard(superClass)) { | ||
| throw new IllegalArgumentException("An extended class type may not specify a wildcard"); | ||
| } | ||
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| this.superClass = superClass; | ||
| return this; | ||
| } | ||
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| @Override | ||
| public ClassSignatureBuilder addInterface(ClassType interfaceType) { | ||
| superInterfaces.add(interfaceType); | ||
| return this; | ||
| } | ||
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| @Override | ||
| public ClassSignatureBuilder addInterface(ParameterizedType interfaceType) { | ||
| if (containsWildcard(interfaceType)) { | ||
| throw new IllegalArgumentException("An implemented interface type may not specify a wildcard"); | ||
| } | ||
| superInterfaces.add(interfaceType); | ||
| return this; | ||
| } | ||
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| private boolean containsWildcard(Type type) { | ||
| if (type.isWildcard()) { | ||
| return true; | ||
| } else if (type.isParameterizedType()) { | ||
| for (Type typeArgument : type.asParameterizedType().getTypeArguments()) { | ||
| if (containsWildcard(typeArgument)) { | ||
| return true; | ||
| } | ||
| } | ||
| } | ||
| return false; | ||
| } | ||
| } |
22 changes: 22 additions & 0 deletions
22
src/main/java/io/quarkus/gizmo/FieldSignatureBuilderImpl.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,22 @@ | ||
| package io.quarkus.gizmo; | ||
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| import java.util.Objects; | ||
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| import io.quarkus.gizmo.SignatureBuilder.FieldSignatureBuilder; | ||
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| class FieldSignatureBuilderImpl implements FieldSignatureBuilder { | ||
| private Type type; | ||
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| @Override | ||
| public String build() { | ||
| StringBuilder signature = new StringBuilder(); | ||
| type.appendToSignature(signature); | ||
| return signature.toString(); | ||
| } | ||
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| @Override | ||
| public FieldSignatureBuilder setType(Type type) { | ||
| this.type = Objects.requireNonNull(type); | ||
| return this; | ||
| } | ||
| } |
81 changes: 81 additions & 0 deletions
81
src/main/java/io/quarkus/gizmo/MethodSignatureBuilderImpl.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,81 @@ | ||
| package io.quarkus.gizmo; | ||
|
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| import java.util.ArrayList; | ||
| import java.util.List; | ||
| import java.util.Objects; | ||
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| import io.quarkus.gizmo.SignatureBuilder.MethodSignatureBuilder; | ||
| import io.quarkus.gizmo.Type.ClassType; | ||
| import io.quarkus.gizmo.Type.TypeVariable; | ||
| import io.quarkus.gizmo.Type.VoidType; | ||
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| class MethodSignatureBuilderImpl implements MethodSignatureBuilder { | ||
| private List<TypeVariable> typeParameters = new ArrayList<>(); | ||
| private Type returnType = VoidType.INSTANCE; | ||
| private List<Type> parameterTypes = new ArrayList<>(); | ||
| private List<Type> exceptions = new ArrayList<>(); | ||
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| @Override | ||
| public String build() { | ||
| StringBuilder signature = new StringBuilder(); | ||
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| // type params | ||
| if (!typeParameters.isEmpty()) { | ||
| signature.append('<'); | ||
| for (TypeVariable typeParameter : typeParameters) { | ||
| typeParameter.appendTypeParameterToSignature(signature); | ||
| } | ||
| signature.append('>'); | ||
| } | ||
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| // param types | ||
| signature.append('('); | ||
| for (Type parameterType : parameterTypes) { | ||
| parameterType.appendToSignature(signature); | ||
| } | ||
| signature.append(')'); | ||
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| // return type | ||
| returnType.appendToSignature(signature); | ||
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| // exception types | ||
| if (!exceptions.isEmpty()) { | ||
| for (Type exceptionType : exceptions) { | ||
| signature.append('^'); | ||
| exceptionType.appendToSignature(signature); | ||
| } | ||
| } | ||
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| return signature.toString(); | ||
| } | ||
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| @Override | ||
| public MethodSignatureBuilder addTypeParameter(TypeVariable typeParameter) { | ||
| typeParameters.add(Objects.requireNonNull(typeParameter)); | ||
| return this; | ||
| } | ||
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| @Override | ||
| public MethodSignatureBuilder setReturnType(Type returnType) { | ||
| this.returnType = Objects.requireNonNull(returnType); | ||
| return this; | ||
| } | ||
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| @Override | ||
| public MethodSignatureBuilder addParameterType(Type parameterType) { | ||
| this.parameterTypes.add(Objects.requireNonNull(parameterType)); | ||
| return this; | ||
| } | ||
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| @Override | ||
| public MethodSignatureBuilder addException(ClassType exceptionType) { | ||
| this.exceptions.add(Objects.requireNonNull(exceptionType)); | ||
| return this; | ||
| } | ||
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| @Override | ||
| public MethodSignatureBuilder addException(TypeVariable exceptionType) { | ||
| this.exceptions.add(Objects.requireNonNull(exceptionType)); | ||
| return this; | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,66 @@ | ||
| package io.quarkus.gizmo; | ||
|
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| import io.quarkus.gizmo.Type.ClassType; | ||
| import io.quarkus.gizmo.Type.ParameterizedType; | ||
| import io.quarkus.gizmo.Type.TypeVariable; | ||
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| /** | ||
| * Builds a generic signature as defined in JVMS 17, chapter "4.7.9.1. Signatures". | ||
| * | ||
| * @see SignatureElement#setSignature(String) | ||
| */ | ||
| public interface SignatureBuilder { | ||
| static ClassSignatureBuilder forClass() { | ||
| return new ClassSignatureBuilderImpl(); | ||
| } | ||
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| static MethodSignatureBuilder forMethod() { | ||
| return new MethodSignatureBuilderImpl(); | ||
| } | ||
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| static FieldSignatureBuilder forField() { | ||
| return new FieldSignatureBuilderImpl(); | ||
| } | ||
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| /** | ||
| * @return the generic signature | ||
| */ | ||
| String build(); | ||
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| /** | ||
| * Builds a generic signature of a class (including interfaces). | ||
| */ | ||
| interface ClassSignatureBuilder extends SignatureBuilder { | ||
| ClassSignatureBuilder addTypeParameter(TypeVariable typeParameter); | ||
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| ClassSignatureBuilder setSuperClass(ClassType superClass); | ||
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| ClassSignatureBuilder setSuperClass(ParameterizedType superClass); | ||
|
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| ClassSignatureBuilder addInterface(ClassType interfaceType); | ||
|
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| ClassSignatureBuilder addInterface(ParameterizedType interfaceType); | ||
| } | ||
|
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| /** | ||
| * Builds a generic signature of a method (including constructors). | ||
| */ | ||
| interface MethodSignatureBuilder extends SignatureBuilder { | ||
| MethodSignatureBuilder addTypeParameter(TypeVariable typeParameter); | ||
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| MethodSignatureBuilder setReturnType(Type returnType); | ||
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| MethodSignatureBuilder addParameterType(Type parameterType); | ||
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| MethodSignatureBuilder addException(ClassType exceptionType); | ||
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| MethodSignatureBuilder addException(TypeVariable exceptionType); | ||
| } | ||
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| /** | ||
| * Builds a generic signature of a field. Also usable for building generic signatures of record components. | ||
| */ | ||
| interface FieldSignatureBuilder extends SignatureBuilder { | ||
| FieldSignatureBuilder setType(Type type); | ||
| } | ||
| } |
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