--- /dev/null
+package org.simantics.scl.runtime.generation;\r
+\r
+import java.io.File;\r
+import java.io.FileOutputStream;\r
+import java.io.PrintStream;\r
+import java.net.URL;\r
+\r
+public class GenerateFunctions {\r
+ \r
+ public static final String PACKAGE = "org.simantics.scl.runtime.function";\r
+ public static final int MAX_ARITY = 8;\r
+ \r
+ public static final String HEADER =\r
+ "/**\n"\r
+ + " * This code is generated in " + GenerateFunctions.class.getName() + ".\n"\r
+ + " * Do not edit manually!\n"\r
+ + " */" \r
+ ;\r
+ \r
+ public static void generateFunctionN(PrintStream p, int n) {\r
+ p.println(HEADER);\r
+ p.println("package " + PACKAGE + ";");\r
+ p.println(); \r
+ p.print("public interface Function"+n+"<");\r
+ for(int i=0;i<n;++i)\r
+ p.print("P" + i + ",");\r
+ p.println("R> {");\r
+ p.print(" R apply(");\r
+ for(int i=0;i<n;++i) {\r
+ if(i>0)\r
+ p.print(", ");\r
+ p.print("P"+i+" p" + i);\r
+ }\r
+ p.println(");");\r
+ p.println("}");\r
+ }\r
+ \r
+ public static void generateFunctionN(PrintStream p) {\r
+ p.println(HEADER);\r
+ p.println("package " + PACKAGE + ";");\r
+ p.println();\r
+ p.println("public interface FunctionN {");\r
+ p.println(" Object applyArray(Object ... ps);");\r
+ p.println("}");\r
+ }\r
+ \r
+ public static void generateFunction(PrintStream p) {\r
+ p.println(HEADER);\r
+ p.println("package " + PACKAGE + ";");\r
+ p.println();\r
+ //p.println("@SuppressWarnings(\"all\")");\r
+ p.print("public interface Function<");\r
+ for(int k=0;k<MAX_ARITY;++k) {\r
+ p.print("P"+k+",");\r
+ }\r
+ for(int k=1;k<=MAX_ARITY;++k) {\r
+ p.print("R"+k);\r
+ if(k < MAX_ARITY)\r
+ p.print(",");\r
+ }\r
+ p.println("> extends"); \r
+ for(int k=1;k<=MAX_ARITY;++k) {\r
+ p.print(" Function" + k + "<");\r
+ for(int i=0;i<k;++i) {\r
+ p.print("P"+i+",");\r
+ }\r
+ p.println("R"+k+">,");\r
+ }\r
+ p.println(" FunctionN {");\r
+ p.println("}");\r
+ }\r
+ \r
+ public static void generateFunctionImplN(PrintStream p, int n) {\r
+ p.println(HEADER);\r
+ p.println("package " + PACKAGE + ";");\r
+ p.println();\r
+ p.println("import java.util.Arrays;");\r
+ p.println();\r
+ p.println("@SuppressWarnings(\"all\")");\r
+ p.print("public abstract class FunctionImpl" + n + "<");\r
+ for(int i=0;i<n;++i)\r
+ p.print("P" + i + ",");\r
+ p.print("R> implements Function<");\r
+ for(int i=0;i<n;++i)\r
+ p.print("P" + i + ",");\r
+ for(int i=n;i<MAX_ARITY;++i)\r
+ p.print("Object,");\r
+ for(int i=1;i<=MAX_ARITY;++i) {\r
+ if(i == n)\r
+ p.print("R");\r
+ else \r
+ p.print("Object");\r
+ if(i < MAX_ARITY)\r
+ p.print(",");\r
+ }\r
+ p.println("> {");\r
+ for(int k=1;k<Math.min(n, MAX_ARITY+1);++k) {\r
+ p.println(" @Override");\r
+ p.print(" public Object apply(");\r
+ for(int i=0;i<k;++i) {\r
+ if(i>0)\r
+ p.print(", ");\r
+ p.print("Object p" + i);\r
+ }\r
+ p.println(") {");\r
+ p.print(" return new UnsaturatedFunction" + k + "(this");\r
+ for(int i=0;i<k;++i)\r
+ p.print(", p" + i);\r
+ p.println(");");\r
+ p.println(" }");\r
+ p.println();\r
+ }\r
+ {\r
+ if(n <= MAX_ARITY)\r
+ p.println(" @Override");\r
+ p.print(" public abstract R apply(");\r
+ for(int i=0;i<n;++i) {\r
+ if(i>0)\r
+ p.print(", ");\r
+ p.print("P"+i+" p" + i);\r
+ }\r
+ p.println(");");\r
+ p.println();\r
+ }\r
+ for(int k=n+1;k<=MAX_ARITY;++k) {\r
+ p.println(" @Override");\r
+ p.print(" public Object apply(");\r
+ for(int i=0;i<k;++i) {\r
+ if(i>0)\r
+ p.print(", ");\r
+ p.print("Object p" + i);\r
+ }\r
+ p.println(") {");\r
+ p.println(" try {");\r
+ p.print(" return ((Function)apply(");\r
+ for(int i=0;i<n;++i) {\r
+ if(i>0)\r
+ p.print(", ");\r
+ p.print("(P"+i+")p" + i);\r
+ }\r
+ p.print(")).apply(");\r
+ for(int i=n;i<k;++i) {\r
+ if(i>n)\r
+ p.print(", ");\r
+ p.print("p" + i);\r
+ }\r
+ p.println(");");\r
+ p.println(" } catch(ClassCastException e) {");\r
+ p.println(" throw new CalledWithTooManyParameters();");\r
+ p.println(" }");\r
+ p.println(" }");\r
+ p.println();\r
+ }\r
+ p.println(" @Override");\r
+ p.println(" public Object applyArray(Object ... ps) {");\r
+ p.println(" switch(ps.length) {");\r
+ for(int k=0;k<=MAX_ARITY+n;++k) {\r
+ p.println(" case " + k + ":");\r
+ if(k==0)\r
+ p.println(" return this;");\r
+ else if(k < n) {\r
+ p.print(" return new UnsaturatedFunction" + k + "(this");\r
+ for(int i=0;i<k;++i)\r
+ p.print(", ps[" + i + "]");\r
+ p.println(");");\r
+ }\r
+ else if(k == n) {\r
+ p.print(" return apply(");\r
+ for(int i=0;i<k;++i) {\r
+ if(i > 0)\r
+ p.print(", ");\r
+ p.print("(P"+i+")ps[" + i + "]");\r
+ }\r
+ p.println(");");\r
+ }\r
+ else if(k <= n + MAX_ARITY) {\r
+ p.println(" try {");\r
+ p.print(" return ((Function)apply(");\r
+ for(int i=0;i<n;++i) {\r
+ if(i>0)\r
+ p.print(", ");\r
+ p.print("(P"+i+")ps[" + i + "]");\r
+ }\r
+ p.print(")).apply(");\r
+ for(int i=n;i<k;++i) {\r
+ if(i>n)\r
+ p.print(", ");\r
+ p.print("ps[" + i + "]");\r
+ }\r
+ p.println(");");\r
+ p.println(" } catch(ClassCastException e) {");\r
+ p.println(" throw new CalledWithTooManyParameters();");\r
+ p.println(" }");\r
+ }\r
+ }\r
+ {\r
+ p.println(" default:");\r
+ p.println(" try {");\r
+ p.print(" return ((Function)apply(");\r
+ for(int i=0;i<n;++i) {\r
+ if(i>0)\r
+ p.print(", ");\r
+ p.print("(P"+i+")ps[" + i + "]");\r
+ }\r
+ p.println(")).apply(Arrays.copyOfRange(ps, "+n+", ps.length));");\r
+ p.println(" } catch(ClassCastException e) {");\r
+ p.println(" throw new CalledWithTooManyParameters();");\r
+ p.println(" }");\r
+ }\r
+ p.println(" }");\r
+ p.println(" }");\r
+ p.println("}");\r
+ }\r
+ \r
+ public static void generateFunctionImplN(PrintStream p) {\r
+ p.println(HEADER);\r
+ p.println("package " + PACKAGE + ";");\r
+ p.println();\r
+ p.println("import java.util.Arrays;");\r
+ p.println();\r
+ p.println("@SuppressWarnings(\"all\")");\r
+ p.println("public abstract class FunctionImplN implements Function {");\r
+ p.println(" int arity;");\r
+ p.println();\r
+ p.println(" public FunctionImplN(int arity) {");\r
+ p.println(" if(arity < 1)");\r
+ p.println(" throw new IllegalArgumentException();");\r
+ p.println(" this.arity = arity;");\r
+ p.println(" }");\r
+ p.println();\r
+ for(int k=1;k<=MAX_ARITY;++k) {\r
+ p.println(" @Override");\r
+ p.print(" public Object apply(");\r
+ for(int i=0;i<k;++i) {\r
+ if(i>0)\r
+ p.print(", ");\r
+ p.print("Object p" + i);\r
+ }\r
+ p.println(") {");\r
+ p.println(" try {");\r
+ p.println(" switch(arity) {");\r
+ for(int i=1;i<k;++i) {\r
+ p.print(" case " + i + ": return ((Function)doApply(");\r
+ for(int j=0;j<i;++j) {\r
+ if(j>0)\r
+ p.print(", ");\r
+ p.print("p" + j);\r
+ }\r
+ p.print(")).apply(");\r
+ for(int j=i;j<k;++j) {\r
+ if(j>i)\r
+ p.print(", ");\r
+ p.print("p" + j);\r
+ }\r
+ p.println(");");\r
+ }\r
+ p.print(" case " + k + ": return doApply(");\r
+ for(int i=0;i<k;++i) {\r
+ if(i>0)\r
+ p.print(", ");\r
+ p.print("p" + i);\r
+ }\r
+ p.println(");");\r
+ p.print(" default: return new UnsaturatedFunction" + k + "(this");\r
+ for(int i=0;i<k;++i)\r
+ p.print(", p" + i);\r
+ p.println(");");\r
+ p.println(" }");\r
+ p.println(" } catch(ClassCastException e) {");\r
+ p.println(" throw new CalledWithTooManyParameters();");\r
+ p.println(" }");\r
+ p.println(" }");\r
+ p.println();\r
+ }\r
+ p.println(" public abstract Object doApply(Object ... ps);");\r
+ p.println();\r
+ p.println(" @Override");\r
+ p.println(" public Object applyArray(Object ... ps) {");\r
+ p.println(" if(ps.length == arity)");\r
+ p.println(" return doApply(ps);");\r
+ p.println(" else if(ps.length < arity)");\r
+ p.println(" return new UnsaturatedFunctionN(this, ps);");\r
+ p.println(" else /* ps.length > arity */ {");\r
+ p.println(" try {");\r
+ p.println(" return ((Function)doApply(Arrays.copyOf(ps, arity))).applyArray(Arrays.copyOfRange(ps, arity, ps.length));");\r
+ p.println(" } catch(ClassCastException e) {");\r
+ p.println(" throw new CalledWithTooManyParameters();");\r
+ p.println(" }");\r
+ p.println(" }");\r
+ p.println(" }");\r
+ p.println("}");\r
+ }\r
+ \r
+ public static void generateUnsaturatedFunctionN(PrintStream p, int n) {\r
+ p.println(HEADER);\r
+ p.println("package " + PACKAGE + ";");\r
+ p.println();\r
+ p.println("@SuppressWarnings(\"all\")");\r
+ p.println("public class UnsaturatedFunction" + n + " implements Function {");\r
+ p.println(" private final Function f;");\r
+ for(int i=0;i<n;++i)\r
+ p.println(" private final Object p" + i + ";");\r
+ p.println();\r
+ p.print(" public UnsaturatedFunction" + n + "(Function f");\r
+ for(int i=0;i<n;++i)\r
+ p.print(", Object p" + i);\r
+ p.println(") {");\r
+ p.println(" this.f = f;");\r
+ for(int i=0;i<n;++i)\r
+ p.println(" this.p" + i + " = p" + i + ";");\r
+ p.println(" }");\r
+ p.println();\r
+ for(int k=1;k<=MAX_ARITY;++k) {\r
+ p.println(" @Override");\r
+ p.print(" public Object apply(");\r
+ for(int i=0;i<k;++i) {\r
+ if(i>0)\r
+ p.print(", ");\r
+ p.print("Object p" + (i + n));\r
+ }\r
+ p.println(") {");\r
+ if(n + k <= MAX_ARITY)\r
+ p.print(" return f.apply(");\r
+ else\r
+ p.print(" return f.applyArray(");\r
+ for(int i=0;i<k+n;++i) {\r
+ if(i>0)\r
+ p.print(", ");\r
+ p.print("p" + i);\r
+ }\r
+ p.println(");");\r
+ p.println(" }");\r
+ p.println();\r
+ }\r
+ {\r
+ p.println(" @Override");\r
+ p.println(" public Object applyArray(Object ... ps) {"); \r
+ p.println(" Object[] nps = new Object[ps.length + " + n + "];");\r
+ for(int i=0;i<n;++i)\r
+ p.println(" nps[" + i + "] = p" + i + ";");\r
+ p.println(" for(int i=0;i<ps.length;++i)");\r
+ p.println(" nps[i + " + n + "] = ps[i];");\r
+ p.println(" return f.applyArray(nps);");\r
+ p.println(" }");\r
+ }\r
+ {\r
+ p.println(" @Override");\r
+ p.println(" public String toString() {");\r
+ p.println(" StringBuilder sb = new StringBuilder();");\r
+ p.println(" sb.append(\"(\").append(f);");\r
+ for(int i=0;i<n;++i)\r
+ p.println(" sb.append(\" \").append(p"+i+");");\r
+ p.println(" sb.append(\")\");");\r
+ p.println(" return sb.toString();");\r
+ p.println(" }");\r
+ }\r
+ p.println("}");\r
+ }\r
+ \r
+ public static void generateUnsaturatedFunctionN(PrintStream p) {\r
+ p.println(HEADER);\r
+ p.println("package " + PACKAGE + ";");\r
+ p.println();\r
+ p.println("@SuppressWarnings(\"all\")");\r
+ p.println("public class UnsaturatedFunctionN implements Function {");\r
+ p.println(" private final Function f;");\r
+ p.println(" private final Object[] ps;");\r
+ p.println();\r
+ p.println(" public UnsaturatedFunctionN(Function f, Object ... ps) {");\r
+ p.println(" this.f = f;");\r
+ p.println(" this.ps = ps;");\r
+ p.println(" }");\r
+ p.println();\r
+ for(int k=1;k<=MAX_ARITY;++k) {\r
+ p.println(" @Override");\r
+ p.print(" public Object apply(");\r
+ for(int i=1;i<=k;++i) {\r
+ if(i>1)\r
+ p.print(", ");\r
+ p.print("Object p" + i);\r
+ }\r
+ p.println(") {");\r
+ p.println(" Object[] nps = new Object[ps.length + " + k + "];");\r
+ p.println(" System.arraycopy(ps, 0, nps, 0, ps.length);");\r
+ for(int i=1;i<=k;++i)\r
+ p.println(" nps[ps.length+" + (i-1) + "] = p" + i+ ";");\r
+ p.println(" return f.applyArray(nps);");\r
+ p.println(" }");\r
+ p.println();\r
+ }\r
+ {\r
+ p.println(" @Override");\r
+ p.println(" public Object applyArray(Object ... ops) {");\r
+ p.println(" Object[] nps = new Object[ps.length + ops.length];");\r
+ p.println(" System.arraycopy(ps, 0, nps, 0, ps.length);");\r
+ p.println(" System.arraycopy(ops, 0, nps, ps.length, ops.length);");\r
+ p.println(" return f.applyArray(nps);");\r
+ p.println(" }");\r
+ }\r
+ {\r
+ p.println(" @Override");\r
+ p.println(" public String toString() {");\r
+ p.println(" StringBuilder sb = new StringBuilder();");\r
+ p.println(" sb.append(\"(\").append(f);");\r
+ p.println(" for (Object p : ps)");\r
+ p.println(" sb.append(\" \").append(p);");\r
+ p.println(" sb.append(\")\");");\r
+ p.println(" return sb.toString();");\r
+ p.println(" }");\r
+ }\r
+ p.println("}");\r
+ }\r
+ \r
+ public static void main(String[] args) throws Exception {\r
+ URL url = GenerateFunctions.class.getResource(".");\r
+ File dir = new File(url.getPath());\r
+ while(!new File(dir, "src").exists())\r
+ dir = dir.getParentFile(); \r
+ dir = new File(dir, "src");\r
+ dir = new File(dir, PACKAGE.replace('.', '/'));\r
+ dir.mkdirs();\r
+ \r
+ for(int n=1;n<=MAX_ARITY;++n) {\r
+ PrintStream ps = \r
+ new PrintStream(new FileOutputStream(new File(dir, "Function"+n+".java")));\r
+ generateFunctionN(ps, n);\r
+ }\r
+ {\r
+ PrintStream ps = \r
+ new PrintStream(new FileOutputStream(new File(dir, "FunctionN.java")));\r
+ generateFunctionN(ps);\r
+ }\r
+ {\r
+ PrintStream ps = \r
+ new PrintStream(new FileOutputStream(new File(dir, "Function.java")));\r
+ generateFunction(ps);\r
+ }\r
+ \r
+ for(int n=1;n<=MAX_ARITY;++n) {\r
+ PrintStream ps = \r
+ new PrintStream(new FileOutputStream(new File(dir, "FunctionImpl"+n+".java")));\r
+ generateFunctionImplN(ps, n);\r
+ }\r
+ {\r
+ PrintStream ps = \r
+ new PrintStream(new FileOutputStream(new File(dir, "FunctionImplN.java")));\r
+ generateFunctionImplN(ps);\r
+ }\r
+ for(int n=1;n<=MAX_ARITY;++n) {\r
+ PrintStream ps = \r
+ new PrintStream(new FileOutputStream(new File(dir, "UnsaturatedFunction"+n+".java")));\r
+ generateUnsaturatedFunctionN(ps, n);\r
+ }\r
+ {\r
+ PrintStream ps = \r
+ new PrintStream(new FileOutputStream(new File(dir, "UnsaturatedFunctionN.java")));\r
+ generateUnsaturatedFunctionN(ps);\r
+ }\r
+ } \r
+}\r
Code Review / simantics / platform.git / blobdiff