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projekti pod git sistemom za održavanje verzija -- projects under the git version control system
diff --git a/src/com/quemaster/transformations/mjc2wsl/mjc2wsl.java b/src/com/quemaster/transformations/mjc2wsl/mjc2wsl.java
package com.quemaster.transformations.mjc2wsl;
/*
- Copyright (C) 2014 Doni Pracner
+ Copyright (C) 2014,2015, 2016 Doni Pracner
This file is part of mjc2wsl.
*/
public class mjc2wsl{
//default version name, used if the file is not found
- private static String versionN = "0.1.x";
+ private static String versionN = "v0.2.x";
- private String versionFile = "/version.properties";
+ private String versionFile = "version.properties";
private TransMessages messages = new TransMessages();
private boolean genLocalVars = true;
+ // make an array for all local variables OTHERWISE make them separate
+ private boolean genLocalsAsArray = true;
+
/** Constant used for marking a regular comment from the original file */
public static final char C_REG = ' ';
/**
versionData = new Properties();
try {
versionData.load(getClass().getResourceAsStream(versionFile));
- } catch (IOException e) {
- e.printStackTrace();
+ } catch (IOException | NullPointerException e) {
+ // it doesn't matter
+ //e.printStackTrace();
}
}
String ver = versionData.getProperty("version");
public String createStandardStart(int numWords){
StringBuilder ret = new StringBuilder(
- "C:\" This file automatically converted from microjava bytecode\";\n"
- +"C:\" with mjc2wsl v "+getVersion()+"\";\n");
+ "C:\" This file was automatically converted from microjava bytecode\n"
+ +" using mjc2wsl "+getVersion()+"\n");
+
+ ret.append(" -options:");
+ ret.append("\n localsAsArrays:"+genLocalsAsArray);
+ ret.append("\n localVarBlocks:"+genLocalVars);
+ ret.append("\n popPush:"+genPopPush);
+ ret.append("\n inlinePrint:"+genInlinePrint);
+ ret.append("\n\";\n");
ret.append("\nBEGIN");
ret.append("\nVAR <\n\t");
ret.append("\n\ttempa := 0, tempb :=0, tempres := 0,");
} else
ret.append("\n\tmjvm_flag_jump := 0,");
- ret.append("mjvm_locals := ARRAY(1,0),");
+
+ if (genLocalsAsArray)
+ ret.append("mjvm_locals := ARRAY(1,0),");
+
ret.append("\n\tmjvm_statics := ARRAY("+numWords+",0),");
ret.append("\n\tmjvm_arrays := < >,");
ret.append("\n\tmjvm_objects := < >,");
ret.append("\nWHERE\n");
ret.append("\nFUNCT CHR(num) ==:\n");
- ret.append("\t@List_To_String(< num >)\n");
+ ret.append("\t(@List_To_String(< num >))\n");
ret.append("END\n");
if (!genInlinePrint) {
ret.append("\nPROC Print_MJ(val, format VAR)==\n");
- ret.append(createComment("print spacing", C_SPEC));
- ret.append("\n\tIF format>1 THEN\n\t\tFOR i:=1 TO ");
- ret.append("MAX(0, format-SLENGTH(@String(tempb))) STEP 1 DO PRINFLUSH(\" \") OD\n");
- ret.append("\tFI;\n\tPRINFLUSH(val)\nEND\n");
+ ret.append("PRINFLUSH(@Format(format, val ))");
+ ret.append("\nEND\n");
ret.append("\nPROC Print_MJ_CHAR(val, format VAR)==\n");
- ret.append(createComment("print spacing", C_SPEC));
- ret.append("\n\tIF format>1 THEN\n\t\tFOR i:=2 TO ");
- ret.append("format STEP 1 DO PRINFLUSH(\" \") OD\n");
- ret.append("\tFI;\n\tPRINFLUSH(CHR(val))\n");
- ret.append("END\n");
+ ret.append("PRINFLUSH(@Format(format, CHR(val)))");
+ ret.append("\nEND\n");
}
ret.append("\nEND");
private String createLocal(int i) {
// arrays start at 1 in WSL, so we need an offset
- return "mjvm_locals[" + (i + 1) + "]";
+ if (genLocalsAsArray)
+ return "mjvm_locals[" + (i + 1) + "]";
+ else
+ return "mjvm_locals_" + i;
}
private String createStatic(int i) {
prl(createStandardStart(mjInput.getNumberOfWords(this)));
prl("SKIP;\n ACTIONS a" + (14 + mjInput.getMainAdr(this)) + " :");
+
+ // the number of Locals for procedures; need to remember it for exits
+ int numberOfLocals = 0;
+
int op = mjInput.get();
while (op >= 0) {
prl(" a" + mjInput.getCounter() + " ==");
case enter: {
int parameters = mjInput.get();
- int locals = mjInput.get();
- prl(createToMStack("mjvm_locals"));
- prl("mjvm_locals := ARRAY(" + locals + ",0);");
+ numberOfLocals = mjInput.get();
+ if (genLocalsAsArray) {
+ prl(createToMStack("mjvm_locals"));
+ prl("mjvm_locals := ARRAY(" + numberOfLocals + ",0);");
+ } else {
+ // TODO maybe we should generate VAR block for these somewhere
+ for (int i = 0; i < numberOfLocals; i++) {
+ prl(createToMStack(createLocal(i)));
+ }
+ }
+
for (int i = parameters - 1; i >= 0; i--)
prl(createFromEStack(createLocal(i)));
break;
}
case exit: {
- prl(createFromMStack("mjvm_locals"));
+ if (genLocalsAsArray) {
+ prl(createFromMStack("mjvm_locals"));
+ } else {
+ // there are as many locals as defined in the last enter
+ for (int i = numberOfLocals -1; i >= 0; i--)
+ prl(createFromMStack(createLocal(i)));
+ }
break;
}
prl(createTopTwoEStack());
if (genInlinePrint){
prl(createComment("print spacing and transformation",C_SPEC));
- prl("PRINFLUSH(SUBSTR(\" \", 0, MIN(10, MAX(0,tempa-1))), @List_To_String(< tempb >));");
+ prl("PRINFLUSH(@Format(tempa, @List_To_String(< tempb >)));");
} else
prl("Print_MJ_CHAR(tempb,tempa);");
prl(createEndVar());
prl(createTopTwoEStack());
if (genInlinePrint){
prl(createComment("print spacing",C_SPEC));
- prl("PRINFLUSH(SUBSTR(\" \", 0, MIN(10, MAX(0, tempa-SLENGTH(@String(tempb))))), tempb);");
+ prl("PRINFLUSH(@Format(tempa,tempb));");
}
else
prl("Print_MJ(tempb,tempa);");
System.out.println(" --genLocalVars generate local VAR block for temp variables");
System.out.print(!genLocalVars?'*':' ');
System.out.println(" --genGlobalVars do NOT generate local VAR block for temp variables");
+ System.out.println();
+ System.out.print(genLocalsAsArray?'*':' ');
+ System.out.println(" --genLocalsAsArray generate local variables as an array");
+ System.out.print(!genLocalsAsArray?'*':' ');
+ System.out.println(" --genLocalsSeparate generate local variables as separate entities");
}
public void printHelpHelp() {
}
public void printVersion() {
- System.out.println("MicroJava bytecode to WSL converter. v " + getVersion()
+ System.out.println("MicroJava bytecode to WSL converter " + getVersion()
+ ", by Doni Pracner");
}
printHelp();
} else {
int i = 0;
- while (i < args.length && args[i].charAt(0) == '-') {
+ while (i < args.length && args[i].length() > 0 && args[i].charAt(0) == '-') {
if (args[i].compareTo("-h") == 0) {
printHelp();
return;
genLocalVars = true;
} else if (args[i].compareToIgnoreCase("--genGlobalVars") == 0) {
genLocalVars = false;
+ } else if (args[i].compareToIgnoreCase("--genLocalsAsArray") == 0) {
+ genLocalsAsArray = true;
+ } else if (args[i].compareToIgnoreCase("--genLocalsSeparate") == 0) {
+ genLocalsAsArray = false;
} else {
System.err.println("unknown option: "+args[i]);
}
}
Path p = FileSystems.getDefault().getPath(args[i]);
- if (!Files.exists(p)){
+ if (!Files.isRegularFile(p)){
System.err.println("input file does not exist");
System.exit(1);
}