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AS1/2 variable highlighter improvements

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This commit is contained in:
Jindra Petřík
2025-05-28 00:33:53 +02:00
parent 348e45ddc9
commit d6ccceb83d
6 changed files with 218 additions and 57 deletions
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146
libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/parser/script/variables/ActionScript2VariableParser.java
View File

@@ -46,7 +46,7 @@ public class ActionScript2VariableParser {
* Swf version
*/
private final int swfVersion;
/**
* Constructor
*
@@ -57,7 +57,7 @@ public class ActionScript2VariableParser {
}
private final boolean debugMode = false;
private void commands(boolean inFunction, boolean inMethod, int forinlevel, boolean inTellTarget, List<VariableOrScope> variables, Reference<Boolean> hasEval) throws IOException, ActionParseException, InterruptedException {
if (debugMode) {
System.out.println("commands:");
@@ -67,22 +67,29 @@ public class ActionScript2VariableParser {
}
if (debugMode) {
System.out.println("/commands");
}
}
}
private boolean type(List<VariableOrScope> variables) throws IOException, ActionParseException, InterruptedException {
private String type(boolean definition, List<VariableOrScope> variables) throws IOException, ActionParseException, InterruptedException {
ParsedSymbol s = lex();
expectedIdentifier(s, lexer.yyline());
ParsedSymbol lastIdent = s;
Variable vret = new Variable(false, s.value.toString(), s.position);
variables.add(vret);
String ret = s.value.toString();
s = lex();
while (s.type == SymbolType.DOT) {
ret += ".";
s = lex();
expectedIdentifier(s, lexer.yyline());
lastIdent = s;
ret += s.value.toString();
s = lex();
}
lexer.pushback(s);
return true;
Type t = new Type(definition, ret, lastIdent.position);
variables.add(t);
return ret;
}
private void expected(ParsedSymbol symb, int line, Object... expected) throws IOException, ActionParseException {
@@ -157,7 +164,7 @@ public class ActionScript2VariableParser {
paramPositions.add(s.position);
s = lex();
if (s.type == SymbolType.COLON) {
type(variables);
type(false, variables);
s = lex();
}
@@ -168,13 +175,16 @@ public class ActionScript2VariableParser {
List<VariableOrScope> subvariables = new ArrayList<>();
Reference<Boolean> subHasEval = new Reference<>(false);
if (!functionName.isEmpty()) {
variables.add(new Variable(true, functionName, functionNamePosition));
}
for (int i = 0; i < paramNames.size(); i++) {
subvariables.add(new Variable(true, paramNames.get(i), paramPositions.get(i)));
}
if (withBody) {
expectedType(SymbolType.CURLY_OPEN);
//body = ;
commands(true, isMethod, 0, inTellTarget, subvariables, subHasEval);
expectedType(SymbolType.CURLY_CLOSE);
}
@@ -184,18 +194,20 @@ public class ActionScript2VariableParser {
}
variables.add(new FunctionScope(subvariables));
if (!functionName.isEmpty()) {
variables.add(new Variable(true, functionName, functionNamePosition));
}
}
private boolean traits(boolean isInterface, List<VariableOrScope> variables, boolean inTellTarget, Reference<Boolean> hasEval) throws IOException, ActionParseException, InterruptedException {
private boolean traits(boolean isInterface, String className, List<VariableOrScope> variables, boolean inTellTarget, Reference<Boolean> hasEval) throws IOException, ActionParseException, InterruptedException {
ParsedSymbol s;
looptrait:
while (true) {
boolean isStatic = false;
s = lex();
while (s.isType(SymbolType.STATIC, SymbolType.PUBLIC, SymbolType.PRIVATE)) {
if (s.type == SymbolType.STATIC) {
isStatic = true;
}
s = lex();
}
switch (s.type) {
@@ -209,17 +221,18 @@ public class ActionScript2VariableParser {
}
expectedIdentifier(s, lexer.yyline());
if (!isInterface) {
function(!isInterface, "", -1, true, variables, inTellTarget, hasEval);
function(!isInterface, isStatic ? className + "." + s.value.toString() : "this." + s.value.toString(), isStatic ? -1 : s.position, true, variables, inTellTarget, hasEval);
}
break;
case VAR:
s = lex();
expectedIdentifier(s, lexer.yyline());
//String ident = s.value.toString();
variables.add(new Variable(true, isStatic ? className + "." + s.value.toString() : "this." + s.value.toString(), s.position));
s = lex();
if (s.type == SymbolType.COLON) {
type(variables);
type(false, variables);
s = lex();
}
if (s.type == SymbolType.ASSIGN) {
@@ -245,7 +258,7 @@ public class ActionScript2VariableParser {
System.out.println("expressionCommands:");
}
boolean ret;
switch (s.type) {
case DUPLICATEMOVIECLIP:
case FSCOMMAND:
@@ -293,7 +306,7 @@ public class ActionScript2VariableParser {
variables.add(new Variable(false, (String) s.value, s.position));
break;
}
switch (s.type) {
case DUPLICATEMOVIECLIP:
expectedType(SymbolType.PARENT_OPEN);
@@ -436,7 +449,7 @@ public class ActionScript2VariableParser {
expression(inFunction, inMethod, inTellTarget, true, variables, false, hasEval);
expectedType(SymbolType.COMMA);
expression(inFunction, inMethod, inTellTarget, true, variables, false, hasEval);
expectedType(SymbolType.PARENT_CLOSE);
expectedType(SymbolType.PARENT_CLOSE);
ret = true;
break;
case LOADVARIABLES:
@@ -498,7 +511,7 @@ public class ActionScript2VariableParser {
}
} else {
lexer.pushback(s);
}
} else {
lexer.pushback(s);
@@ -724,35 +737,39 @@ public class ActionScript2VariableParser {
ret = true;
break;
case CLASS:
type(variables);
String className = type(true, variables);
s = lex();
if (s.type == SymbolType.EXTENDS) {
type(variables);
type(false, variables);
s = lex();
}
if (s.type == SymbolType.IMPLEMENTS) {
do {
type(variables);
type(false, variables);
s = lex();
} while (s.type == SymbolType.COMMA);
}
expected(s, lexer.yyline(), SymbolType.CURLY_OPEN);
traits(false, variables, inTellTarget, hasEval);
List<VariableOrScope> subVariables = new ArrayList<>();
traits(false, className, subVariables, inTellTarget, hasEval);
ClassScope cs = new ClassScope(subVariables);
variables.add(cs);
expectedType(SymbolType.CURLY_CLOSE);
ret = true;
break;
case INTERFACE:
type(variables);
String interfaceName = type(true, variables);
s = lex();
if (s.type == SymbolType.EXTENDS) {
do {
type(variables);
type(false, variables);
s = lex();
} while (s.type == SymbolType.COMMA);
}
expected(s, lexer.yyline(), SymbolType.CURLY_OPEN);
traits(true, variables, inTellTarget, hasEval);
traits(true, interfaceName, variables, inTellTarget, hasEval);
expectedType(SymbolType.CURLY_CLOSE);
ret = true;
break;
@@ -768,7 +785,7 @@ public class ActionScript2VariableParser {
int varPosition = s.position;
s = lex();
if (s.type == SymbolType.COLON) {
type(variables);
type(false, variables);
s = lex();
//TODO: handle value type
}
@@ -928,12 +945,12 @@ public class ActionScript2VariableParser {
expectedIdentifier(si, lexer.yyline(), SymbolType.STRING);
s = lex();
if (s.type == SymbolType.COLON) {
type(variables);
type(false, variables);
} else {
lexer.pushback(s);
}
expectedType(SymbolType.PARENT_CLOSE);
List<VariableOrScope> subvariables = new ArrayList<>();
command(inFunction, inMethod, forinlevel, inTellTarget, subvariables, hasEval);
@@ -1124,7 +1141,7 @@ public class ActionScript2VariableParser {
case ASSIGN_SHIFT_LEFT:
case ASSIGN_SHIFT_RIGHT:
case ASSIGN_USHIFT_RIGHT:
case ASSIGN_XOR:
case ASSIGN_XOR:
lhs = true;
break;
case IDENTIFIER:
@@ -1148,7 +1165,7 @@ public class ActionScript2VariableParser {
}
return lhs;
}
private int brackets(boolean inFunction, boolean inMethod, boolean inTellTarget, List<VariableOrScope> variables, Reference<Boolean> hasEval) throws IOException, ActionParseException, InterruptedException {
ParsedSymbol s = lex();
int arrCnt = 0;
@@ -1183,6 +1200,38 @@ public class ActionScript2VariableParser {
Variable vret = new Variable(false, varName, s.position);
variables.add(vret);
allowMemberOrCall.setVal(true);
if (varName.equals("this")) {
ParsedSymbol s2 = lex();
if (s2.type == SymbolType.DOT) {
ParsedSymbol s3 = lex();
if (s3.group == SymbolGroup.IDENTIFIER) {
Variable thisVar = new Variable(false, "this." + s3.value.toString(), s3.position);
variables.add(thisVar);
} else {
lexer.pushback(s3);
lexer.pushback(s2);
}
} else {
lexer.pushback(s2);
}
}
ParsedSymbol ss = lex();
String fullName = varName;
while (ss.type == SymbolType.DOT) {
ParsedSymbol si = lex();
if (!isIdentifier(si)) {
lexer.pushback(si);
break;
}
fullName += ".";
fullName += si.value.toString();
Variable v = new Variable(false, fullName, si.position);
variables.add(v);
ss = lex();
}
lexer.pushback(ss);
ret = true;
}
return ret;
@@ -1231,7 +1280,7 @@ public class ActionScript2VariableParser {
case "goto":
s = lexer.lex();
ret = true;
//throw new ActionParseException("Compiling §§" + s.value + " is not available, sorry", lexer.yyline());
//throw new ActionParseException("Compiling §§" + s.value + " is not available, sorry", lexer.yyline());
default:
throw new ActionParseException("Unknown preprocessor instruction: §§" + s.value, lexer.yyline());
@@ -1367,7 +1416,7 @@ public class ActionScript2VariableParser {
expressionPrimary(inFunction, inMethod, inTellTarget, false, variables, false, hasEval);
}
expectedType(SymbolType.PARENT_OPEN);
call(inFunction, inMethod, inTellTarget, variables, hasEval);
call(inFunction, inMethod, inTellTarget, variables, hasEval);
ret = true;
allowMemberOrCall = true;
@@ -1419,7 +1468,7 @@ public class ActionScript2VariableParser {
}
return ret;
}
private boolean memberOrCall(boolean ret, boolean inFunction, boolean inMethod, boolean inTellTarget, List<VariableOrScope> variables, boolean allowCall, Reference<Boolean> hasEval) throws IOException, ActionParseException, InterruptedException {
ParsedSymbol op = lex();
while (op.isType(SymbolType.PARENT_OPEN, SymbolType.BRACKET_OPEN, SymbolType.DOT)) {
@@ -1427,7 +1476,7 @@ public class ActionScript2VariableParser {
if (!allowCall) {
break;
}
call(inFunction, inMethod, inTellTarget, variables, hasEval);
call(inFunction, inMethod, inTellTarget, variables, hasEval);
ret = true;
}
if (op.type == SymbolType.BRACKET_OPEN) {
@@ -1551,7 +1600,7 @@ public class ActionScript2VariableParser {
Map<String, Integer> varNameToDefinitionPosition = new LinkedHashMap<>();
parseVariablesList(new ArrayList<>(), vars, definitionPosToReferences, referenceToDefinition, varNameToDefinitionPosition);
if (inOnHandler) {
expectedType(SymbolType.CURLY_CLOSE);
}
@@ -1578,14 +1627,16 @@ public class ActionScript2VariableParser {
privateVarNameToDefinitionPosition.put(v.name, v.position);
definitionPosToReferences.put(v.position, new ArrayList<>());
} else {
if (privateVarNameToDefinitionPosition.containsKey(v.name)) {
if (!privateVarNameToDefinitionPosition.containsKey(v.name)) {
parentVarNameToDefinitionPosition.put(v.name, -v.position - 1);
privateVarNameToDefinitionPosition.put(v.name, -v.position - 1);
definitionPosToReferences.put(-v.position - 1, new ArrayList<>());
definitionPosToReferences.get(-v.position - 1).add(v.position);
referenceToDefinition.put(v.position, -v.position - 1);
} else {
int definitionPos = privateVarNameToDefinitionPosition.get(v.name);
definitionPosToReferences.get(definitionPos).add(v.position);
referenceToDefinition.put(v.position, definitionPos);
} else {
//first usage, take as definition (?)
privateVarNameToDefinitionPosition.put(v.name, v.position);
definitionPosToReferences.put(v.position, new ArrayList<>());
}
}
}
@@ -1602,15 +1653,16 @@ public class ActionScript2VariableParser {
privateVarNameToDefinitionPosition.put(v.name, v.position);
definitionPosToReferences.put(v.position, new ArrayList<>());
} else {
if (privateVarNameToDefinitionPosition.containsKey(v.name)) {
if (!privateVarNameToDefinitionPosition.containsKey(v.name)) {
parentVarNameToDefinitionPosition.put(v.name, -v.position - 1);
privateVarNameToDefinitionPosition.put(v.name, -v.position - 1);
definitionPosToReferences.put(-v.position - 1, new ArrayList<>());
definitionPosToReferences.get(-v.position - 1).add(v.position);
referenceToDefinition.put(v.position, -v.position - 1);
} else {
int definitionPos = privateVarNameToDefinitionPosition.get(v.name);
definitionPosToReferences.get(definitionPos).add(v.position);
referenceToDefinition.put(v.position, definitionPos);
} else {
//first usage, take as definition (?)
parentVarNameToDefinitionPosition.put(v.name, v.position);
privateVarNameToDefinitionPosition.put(v.name, v.position);
definitionPosToReferences.put(v.position, new ArrayList<>());
}
}
}
@@ -1623,7 +1675,7 @@ public class ActionScript2VariableParser {
private void versionRequired(ParsedSymbol s, int min) throws ActionParseException {
versionRequired(s.value.toString(), min, Integer.MAX_VALUE);
}
}
private void versionRequired(String type, int min, int max) throws ActionParseException {
if (min == max && swfVersion != min) {

43
libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/parser/script/variables/ClassScope.java Normal file
View File

@@ -0,0 +1,43 @@
/*
* Copyright (C) 2010-2025 JPEXS, All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3.0 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library.
*/
package com.jpexs.decompiler.flash.action.parser.script.variables;
import java.util.ArrayList;
import java.util.List;
/**
*
* @author JPEXS
*/
public class ClassScope implements Scope {
private final List<VariableOrScope> privateItems;
public ClassScope(List<VariableOrScope> traits) {
this.privateItems = traits;
}
@Override
public List<VariableOrScope> getSharedItems() {
return new ArrayList<>();
}
@Override
public List<VariableOrScope> getPrivateItems() {
return privateItems;
}
}

28
libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/parser/script/variables/Type.java Normal file
View File

@@ -0,0 +1,28 @@
/*
* Copyright (C) 2010-2025 JPEXS, All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3.0 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library.
*/
package com.jpexs.decompiler.flash.action.parser.script.variables;
/**
*
* @author JPEXS
*/
public class Type extends Variable {
public Type(boolean definition, String name, int position) {
super(definition, name, position);
}
}

5
libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/parser/script/variables/Variable.java
View File

@@ -31,4 +31,9 @@ public class Variable implements VariableOrScope {
this.name = name;
this.position = position;
}
@Override
public String toString() {
return (definition ? "definition of " : "") + name + " at " + position;
}
}