Examples with ParseTree com.laytonsmith.core.ParseTree used on opensource projects

Example 26 with ParseTree

use of com.laytonsmith.core.ParseTree in project CommandHelper by EngineHub.

the class InstanceofKeyword method process.

@Override
public int process(List<ParseTree> list, int keywordPosition) throws ConfigCompileException {
    if (list.get(keywordPosition).getData() instanceof CFunction) {
        // It's not a keyword, it's a function
        return keywordPosition;
    }
    if (keywordPosition == 0) {
        throw new ConfigCompileException("Expected value to proceed \"instanceof\" keyword, but no identifiers were found.", list.get(keywordPosition).getTarget());
    }
    if (list.size() <= keywordPosition + 1) {
        throw new ConfigCompileException("Expected type to follow \"instanceof\" keyword, but no type was found.", list.get(keywordPosition).getTarget());
    }
    ParseTree node = new ParseTree(new CFunction(INSTANCEOF, list.get(keywordPosition).getTarget()), list.get(keywordPosition).getFileOptions());
    node.addChild(list.get(keywordPosition - 1));
    node.addChild(list.get(keywordPosition + 1));
    // Overwrite the LHS
    list.set(keywordPosition - 1, node);
    // Remove the keyword
    list.remove(keywordPosition);
    // Remove the RHS
    list.remove(keywordPosition);
    return keywordPosition;
}

Example 27 with ParseTree

use of com.laytonsmith.core.ParseTree in project CommandHelper by EngineHub.

the class ProcKeyword method process.

@Override
public int process(List<ParseTree> list, int keywordPosition) throws ConfigCompileException {
    if (list.get(keywordPosition).getData() instanceof CKeyword) {
        // It's a lone keyword, so we expect some function to follow, which is the proc name + variables
        if (list.get(keywordPosition + 1).getData() instanceof CFunction) {
            ParseTree proc = new ParseTree(new CFunction(PROC, list.get(keywordPosition).getTarget()), list.get(keywordPosition).getFileOptions());
            proc.addChild(new ParseTree(new CString(list.get(keywordPosition + 1).getData().val(), list.get(keywordPosition + 1).getTarget()), list.get(keywordPosition + 1).getFileOptions()));
            // Grab the functions children, and put them on the stack
            for (ParseTree child : list.get(keywordPosition + 1).getChildren()) {
                proc.addChild(child);
            }
            if (list.size() > keywordPosition + 2) {
                validateCodeBlock(list.get(keywordPosition + 2), "Expected braces to follow proc definition");
                proc.addChild(getArgumentOrNull(list.get(keywordPosition + 2)));
            } else {
                throw new ConfigCompileException("Expected braces to follow proc definition", list.get(keywordPosition + 1).getTarget());
            }
            // Remove the keyword
            list.remove(keywordPosition);
            // Remove the function definition
            list.remove(keywordPosition);
            // Remove the cbrace
            list.remove(keywordPosition);
            // Add in the new proc definition
            list.add(keywordPosition, proc);
        } else {
            throw new ConfigCompileException("Unexpected use of \"proc\" keyword", list.get(keywordPosition).getTarget());
        }
    } else if (nodeIsProcFunction(list.get(keywordPosition))) {
        // It's the functional usage, possibly followed by a cbrace. If so, pull the cbrace in, and that's it
        if (list.size() > keywordPosition + 1) {
            if (isValidCodeBlock(list.get(keywordPosition + 1))) {
                list.get(keywordPosition).addChild(getArgumentOrNull(list.get(keywordPosition + 1)));
                list.remove(keywordPosition + 1);
            }
        }
    } else {
        // Random keyword in the middle of nowhere
        throw new ConfigCompileException("Unexpected use of \"proc\" keyword", list.get(keywordPosition).getTarget());
    }
    return keywordPosition;
}

Example 28 with ParseTree

use of com.laytonsmith.core.ParseTree in project CommandHelper by EngineHub.

the class IClosureKeyword method process.

@Override
public int process(List<ParseTree> list, int keywordPosition) throws ConfigCompileException {
    try {
        if (list.get(keywordPosition).getData() instanceof CFunction) {
            // It's a function, so do the old processing
            SimpleBlockKeywordFunction.doProcess(this.getKeywordName(), null, true, list, keywordPosition);
            // easiest if we do the conversion here.
            try {
                if (list.get(keywordPosition - 1).getData() instanceof CClassType) {
                    ParseTree type = list.remove(keywordPosition - 1);
                    List<ParseTree> children = list.get(keywordPosition - 1).getChildren();
                    children.add(0, type);
                    list.get(keywordPosition - 1).setChildren(children);
                    return keywordPosition - 1;
                }
            } catch (IndexOutOfBoundsException ex) {
            // Ignore, it's not a typed closure
            }
            return keywordPosition;
        } else {
            // Else it's standalone, so this should be treated as the closure ClassType
            list.set(keywordPosition, new ParseTree(CIClosure.TYPE, list.get(keywordPosition).getFileOptions()));
            return keywordPosition;
        }
    } catch (IndexOutOfBoundsException ex) {
        throw new ConfigCompileException("Unexpected \"iclosure\" reference", list.get(keywordPosition).getTarget());
    }
}

Example 29 with ParseTree

use of com.laytonsmith.core.ParseTree in project CommandHelper by EngineHub.

the class CompositeFunction method exec.

@Override
public Construct exec(Target t, Environment environment, Construct... args) throws ConfigRuntimeException {
    ParseTree tree;
    if (!cachedScripts.containsKey(this.getClass())) {
        try {
            String script = script();
            tree = MethodScriptCompiler.compile(MethodScriptCompiler.lex(script, null, true)).getChildAt(0);
        } catch (ConfigCompileException | ConfigCompileGroupException ex) {
            // This is really bad.
            throw new Error(ex);
        }
        if (cacheCompile()) {
            cachedScripts.put(this.getClass(), tree);
        }
    } else {
        tree = cachedScripts.get(this.getClass());
    }
    GlobalEnv env = environment.getEnv(GlobalEnv.class);
    IVariableList oldVariables = env.GetVarList();
    IVariableList newVariables = new IVariableList();
    newVariables.set(new IVariable(CClassType.get("array"), "@arguments", new CArray(t, args.length, args), t));
    env.SetVarList(newVariables);
    Construct ret = CVoid.VOID;
    try {
        env.GetScript().eval(tree, environment);
    } catch (FunctionReturnException ex) {
        ret = ex.getReturn();
    }
    env.SetVarList(oldVariables);
    return ret;
}

Example 30 with ParseTree

use of com.laytonsmith.core.ParseTree in project CommandHelper by EngineHub.

the class IncludeCache method get.

public static ParseTree get(File file, Target t) {
    CHLog.GetLogger().Log(TAG, LogLevel.DEBUG, "Loading " + file, t);
    if (cache.containsKey(file)) {
        CHLog.GetLogger().Log(TAG, LogLevel.INFO, "Returning " + file + " from cache", t);
        return cache.get(file);
    }
    CHLog.GetLogger().Log(TAG, LogLevel.VERBOSE, "Cache does not already contain file. Compiling and caching.", t);
    // We have to pull the file from the FS, and compile it.
    if (!Security.CheckSecurity(file)) {
        throw new CRESecurityException("The script cannot access " + file + " due to restrictions imposed by the base-dir setting.", t);
    }
    CHLog.GetLogger().Log(TAG, LogLevel.VERBOSE, "Security check passed", t);
    try {
        String s = new ZipReader(file).getFileContents();
        ParseTree tree = MethodScriptCompiler.compile(MethodScriptCompiler.lex(s, file, true));
        CHLog.GetLogger().Log(TAG, LogLevel.VERBOSE, "Compilation succeeded, adding to cache.", t);
        IncludeCache.add(file, tree);
        return tree;
    } catch (ConfigCompileException ex) {
        throw new CREIncludeException("There was a compile error when trying to include the script at " + file + "\n" + ex.getMessage() + " :: " + file.getName() + ":" + ex.getLineNum(), t);
    } catch (ConfigCompileGroupException ex) {
        StringBuilder b = new StringBuilder();
        b.append("There were compile errors when trying to include the script at ").append(file).append("\n");
        for (ConfigCompileException e : ex.getList()) {
            b.append(e.getMessage()).append(" :: ").append(e.getFile().getName()).append(":").append(e.getLineNum());
        }
        throw new CREIncludeException(b.toString(), t);
    } catch (IOException ex) {
        throw new CREIOException("The script at " + file + " could not be found or read in.", t);
    }
}