package org.simantics.scl.compiler.internal.interpreted;
+import java.util.Arrays;
+
import org.simantics.scl.runtime.function.FunctionImpl1;
import org.simantics.scl.runtime.function.FunctionImpl2;
import org.simantics.scl.runtime.function.FunctionImpl3;
import org.simantics.scl.runtime.function.FunctionImplN;
public class ILambda implements IExpression {
+ private final class Arity1Func extends FunctionImpl1 {
+ private final Object[] inheritedVariableBindings;
+
+ private Arity1Func(Object[] inheritedVariableBindings) {
+ this.inheritedVariableBindings = inheritedVariableBindings;
+ }
+
+ @Override
+ public Object apply(Object param0) {
+ Object[] newVariableBindings = new Object[variableBindingsLength];
+ int i = 0;;
+ for(;i < inheritedVariableBindings.length;++i)
+ newVariableBindings[i] = inheritedVariableBindings[i];
+ newVariableBindings[i] = param0;
+ return body.execute(newVariableBindings);
+ }
+
+ @Override
+ public String toString() {
+ return ILambda.this.toString(inheritedVariableBindings);
+ }
+
+ @Override
+ public int hashCode() {
+ return ILambda.this.hashCode() + 31*Arrays.hashCode(inheritedVariableBindings);
+ }
+
+ private ILambda getParent() {
+ return ILambda.this;
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if(obj == this)
+ return true;
+ if(obj == null || obj.getClass() != getClass())
+ return false;
+ Arity1Func other = (Arity1Func)obj;
+ return ILambda.this == other.getParent() && Arrays.equals(inheritedVariableBindings, other.inheritedVariableBindings);
+ }
+ }
+
+ private final class Arity2Func extends FunctionImpl2 {
+ private final Object[] inheritedVariableBindings;
+
+ private Arity2Func(Object[] inheritedVariableBindings) {
+ this.inheritedVariableBindings = inheritedVariableBindings;
+ }
+
+ @Override
+ public Object apply(Object param0, Object param1) {
+ Object[] newVariableBindings = new Object[variableBindingsLength];
+ int i = 0;;
+ for(;i < inheritedVariableBindings.length;++i)
+ newVariableBindings[i] = inheritedVariableBindings[i];
+ newVariableBindings[i++] = param0;
+ newVariableBindings[i] = param1;
+ return body.execute(newVariableBindings);
+ }
+
+ @Override
+ public String toString() {
+ return ILambda.this.toString(inheritedVariableBindings);
+ }
+
+ @Override
+ public int hashCode() {
+ return ILambda.this.hashCode() + 31*Arrays.hashCode(inheritedVariableBindings);
+ }
+
+ private ILambda getParent() {
+ return ILambda.this;
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if(obj == this)
+ return true;
+ if(obj == null || obj.getClass() != getClass())
+ return false;
+ Arity2Func other = (Arity2Func)obj;
+ return ILambda.this == other.getParent() && Arrays.equals(inheritedVariableBindings, other.inheritedVariableBindings);
+ }
+ }
+
+ private final class Arity3Func extends FunctionImpl3 {
+ private final Object[] inheritedVariableBindings;
+
+ private Arity3Func(Object[] inheritedVariableBindings) {
+ this.inheritedVariableBindings = inheritedVariableBindings;
+ }
+
+ @Override
+ public Object apply(Object param0, Object param1, Object param2) {
+ Object[] newVariableBindings = new Object[variableBindingsLength];
+ int i = 0;;
+ for(;i < inheritedVariableBindings.length;++i)
+ newVariableBindings[i] = inheritedVariableBindings[i];
+ newVariableBindings[i++] = param0;
+ newVariableBindings[i++] = param1;
+ newVariableBindings[i] = param2;
+ return body.execute(newVariableBindings);
+ }
+
+ @Override
+ public String toString() {
+ return ILambda.this.toString(inheritedVariableBindings);
+ }
+
+ @Override
+ public int hashCode() {
+ return ILambda.this.hashCode() + 31*Arrays.hashCode(inheritedVariableBindings);
+ }
+
+ private ILambda getParent() {
+ return ILambda.this;
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if(obj == this)
+ return true;
+ if(obj == null || obj.getClass() != getClass())
+ return false;
+ Arity3Func other = (Arity3Func)obj;
+ return ILambda.this == other.getParent() && Arrays.equals(inheritedVariableBindings, other.inheritedVariableBindings);
+ }
+ }
+
+ private final class Arity4Func extends FunctionImpl4 {
+ private final Object[] inheritedVariableBindings;
+
+ private Arity4Func(Object[] inheritedVariableBindings) {
+ this.inheritedVariableBindings = inheritedVariableBindings;
+ }
+
+ @Override
+ public Object apply(Object param0, Object param1, Object param2, Object param3) {
+ Object[] newVariableBindings = new Object[variableBindingsLength];
+ int i = 0;;
+ for(;i < inheritedVariableBindings.length;++i)
+ newVariableBindings[i] = inheritedVariableBindings[i];
+ newVariableBindings[i++] = param0;
+ newVariableBindings[i++] = param1;
+ newVariableBindings[i++] = param2;
+ newVariableBindings[i] = param3;
+ return body.execute(newVariableBindings);
+ }
+
+ @Override
+ public String toString() {
+ return ILambda.this.toString(inheritedVariableBindings);
+ }
+
+ @Override
+ public int hashCode() {
+ return ILambda.this.hashCode() + 31*Arrays.hashCode(inheritedVariableBindings);
+ }
+
+ private ILambda getParent() {
+ return ILambda.this;
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if(obj == this)
+ return true;
+ if(obj == null || obj.getClass() != getClass())
+ return false;
+ Arity4Func other = (Arity4Func)obj;
+ return ILambda.this == other.getParent() && Arrays.equals(inheritedVariableBindings, other.inheritedVariableBindings);
+ }
+ }
+
+ private final class ArityNFunc extends FunctionImplN {
+ private final Object[] inheritedVariableBindings;
+
+ private ArityNFunc(Object[] inheritedVariableBindings) {
+ super(arity);
+ this.inheritedVariableBindings = inheritedVariableBindings;
+ }
+
+ @Override
+ public Object doApply(Object... ps) {
+ Object[] newVariableBindings = new Object[variableBindingsLength];
+ int i = 0;;
+ for(;i < inheritedVariableBindings.length;++i)
+ newVariableBindings[i] = inheritedVariableBindings[i];
+ for(Object p : ps)
+ newVariableBindings[i++] = p;
+ return body.execute(newVariableBindings);
+ }
+
+ @Override
+ public String toString() {
+ return ILambda.this.toString(inheritedVariableBindings);
+ }
+
+ @Override
+ public int hashCode() {
+ return ILambda.this.hashCode() + 31*Arrays.hashCode(inheritedVariableBindings);
+ }
+
+ private ILambda getParent() {
+ return ILambda.this;
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if(obj == this)
+ return true;
+ if(obj == null || obj.getClass() != getClass())
+ return false;
+ ArityNFunc other = (ArityNFunc)obj;
+ return ILambda.this == other.getParent() && Arrays.equals(inheritedVariableBindings, other.inheritedVariableBindings);
+ }
+ }
+
private final int[] inheritedVariableIds;
private final int arity;
private final int variableBindingsLength;
private final IExpression body;
-
+
public ILambda(int[] inheritedVariableIds, int arity,
int variableBindingsLength, IExpression body) {
this.inheritedVariableIds = inheritedVariableIds;
this.body = body;
}
- @SuppressWarnings("rawtypes")
@Override
public Object execute(Object[] variableBindings) {
final Object[] inheritedVariableBindings = new Object[inheritedVariableIds.length];
inheritedVariableBindings[i] = variableBindings[inheritedVariableIds[i]];
switch(arity) {
case 1:
- return new FunctionImpl1() {
- @Override
- public Object apply(Object param0) {
- Object[] newVariableBindings = new Object[variableBindingsLength];
- int i = 0;;
- for(;i < inheritedVariableBindings.length;++i)
- newVariableBindings[i] = inheritedVariableBindings[i];
- newVariableBindings[i] = param0;
- return body.execute(newVariableBindings);
- }
-
- @Override
- public String toString() {
- return ILambda.this.toString(inheritedVariableBindings);
- }
- };
+ return new Arity1Func(inheritedVariableBindings);
case 2:
- return new FunctionImpl2() {
- @Override
- public Object apply(Object param0, Object param1) {
- Object[] newVariableBindings = new Object[variableBindingsLength];
- int i = 0;;
- for(;i < inheritedVariableBindings.length;++i)
- newVariableBindings[i] = inheritedVariableBindings[i];
- newVariableBindings[i++] = param0;
- newVariableBindings[i] = param1;
- return body.execute(newVariableBindings);
- }
-
- @Override
- public String toString() {
- return ILambda.this.toString(inheritedVariableBindings);
- }
- };
+ return new Arity2Func(inheritedVariableBindings);
case 3:
- return new FunctionImpl3() {
- @Override
- public Object apply(Object param0, Object param1, Object param2) {
- Object[] newVariableBindings = new Object[variableBindingsLength];
- int i = 0;;
- for(;i < inheritedVariableBindings.length;++i)
- newVariableBindings[i] = inheritedVariableBindings[i];
- newVariableBindings[i++] = param0;
- newVariableBindings[i++] = param1;
- newVariableBindings[i] = param2;
- return body.execute(newVariableBindings);
- }
-
- @Override
- public String toString() {
- return ILambda.this.toString(inheritedVariableBindings);
- }
- };
+ return new Arity3Func(inheritedVariableBindings);
case 4:
- return new FunctionImpl4() {
- @Override
- public Object apply(Object param0, Object param1, Object param2, Object param3) {
- Object[] newVariableBindings = new Object[variableBindingsLength];
- int i = 0;;
- for(;i < inheritedVariableBindings.length;++i)
- newVariableBindings[i] = inheritedVariableBindings[i];
- newVariableBindings[i++] = param0;
- newVariableBindings[i++] = param1;
- newVariableBindings[i++] = param2;
- newVariableBindings[i] = param3;
- return body.execute(newVariableBindings);
- }
-
- @Override
- public String toString() {
- return ILambda.this.toString(inheritedVariableBindings);
- }
- };
+ return new Arity4Func(inheritedVariableBindings);
default:
- return new FunctionImplN(arity) {
- @Override
- public Object doApply(Object... ps) {
- Object[] newVariableBindings = new Object[variableBindingsLength];
- int i = 0;;
- for(;i < inheritedVariableBindings.length;++i)
- newVariableBindings[i] = inheritedVariableBindings[i];
- for(Object p : ps)
- newVariableBindings[i++] = p;
- return body.execute(newVariableBindings);
- }
-
- @Override
- public String toString() {
- return ILambda.this.toString(inheritedVariableBindings);
- }
- };
+ return new ArityNFunc(inheritedVariableBindings);
}
}
-
+
@Override
public String toString() {
StringBuilder b = new StringBuilder();
b.append(')');
return b.toString();
}
-
+
public String toString(Object[] variableBindings) {
- StringBuilder sb = new StringBuilder();
- appendVariableBindings(sb, variableBindings);
- sb.append(this.toString());
- return sb.toString();
+ StringBuilder sb = new StringBuilder();
+ appendVariableBindings(sb, variableBindings);
+ sb.append(this.toString());
+ return sb.toString();
}
-
+
private static void appendVariableBindings(StringBuilder sb, Object[] variableBindings) {
- if (variableBindings.length > 0) {
- sb.append("(let {");
- for(int i = 0; i < variableBindings.length; i++) {
- if (i > 0) sb.append("; ");
- sb.append("v").append(i).append("=").append(variableBindings[i].toString());
- }
- sb.append("} in ");
- }
+ if (variableBindings.length > 0) {
+ sb.append("(let {");
+ for(int i = 0; i < variableBindings.length; i++) {
+ if (i > 0) sb.append("; ");
+ sb.append("v").append(i).append("=").append(variableBindings[i].toString());
+ }
+ sb.append("} in ");
+ }
}
}
Code Review / simantics / platform.git / blobdiff