Add support for MixinExtras expressions

build.gradle.kts

@@ -107,12 +107,17 @@ repositories {
         }
     }
     mavenCentral()
+    maven("https://repo.spongepowered.org/maven/")
 }
 
 dependencies {
     // Add tools.jar for the JDI API
     implementation(files(Jvm.current().toolsJar))
 
+    implementation(libs.mixinExtras.expressions)
+    testLibs(libs.mixinExtras.common)
+    implementation("org.ow2.asm:asm-util:9.3")
+
     // Kotlin
     implementation(kotlin("stdlib-jdk8"))
     implementation(kotlin("reflect"))
@@ -198,6 +203,7 @@ intellij {
         "Kotlin",
         "org.toml.lang:$pluginTomlVersion",
         "ByteCodeViewer",
+        "org.intellij.intelliLang",
         "properties",
         // needed dependencies for unit tests
         "junit"
@@ -363,6 +369,9 @@ val generateNbttParser by parser("NbttParser", "com/demonwav/mcdev/nbt/lang/gen"
 val generateLangLexer by lexer("LangLexer", "com/demonwav/mcdev/translations/lang/gen")
 val generateLangParser by parser("LangParser", "com/demonwav/mcdev/translations/lang/gen")
 
+val generateMEExpressionLexer by lexer("MEExpressionLexer", "com/demonwav/mcdev/platform/mixin/expression/gen")
+val generateMEExpressionParser by parser("MEExpressionParser", "com/demonwav/mcdev/platform/mixin/expression/gen")
+
 val generateTranslationTemplateLexer by lexer(
     "TranslationTemplateLexer",
     "com/demonwav/mcdev/translations/template/gen"
@@ -381,6 +390,8 @@ val generate by tasks.registering {
         generateNbttParser,
         generateLangLexer,
         generateLangParser,
+        generateMEExpressionLexer,
+        generateMEExpressionParser,
         generateTranslationTemplateLexer,
     )
 }

gradle/libs.versions.toml

@@ -11,6 +11,7 @@ coroutines-jdk8 = { module = "org.jetbrains.kotlinx:kotlinx-coroutines-jdk8", ve
 coroutines-swing = { module = "org.jetbrains.kotlinx:kotlinx-coroutines-swing", version.ref = "coroutines" }
 
 mappingIo = "net.fabricmc:mapping-io:0.2.1"
+mixinExtras-expressions = "io.github.llamalad7:mixinextras-expressions:0.0.1"
 
 # GrammarKit
 jflex-lib = "org.jetbrains.idea:jflex:1.7.0-b7f882a"
@@ -40,6 +41,8 @@ junit-api = { module = "org.junit.jupiter:junit-jupiter-api", version.ref = "jun
 junit-entine = { module = "org.junit.jupiter:junit-jupiter-engine", version.ref = "junit" }
 junit-platform-launcher = { module = "org.junit.platform:junit-platform-launcher", version.ref = "junit-platform" }
 
+mixinExtras-common = "io.github.llamalad7:mixinextras-common:0.5.0-beta.1"
+
 [bundles]
 coroutines = ["coroutines-core", "coroutines-jdk8", "coroutines-swing"]
 asm = ["asm", "asm-tree", "asm-analysis"]

mixin-test-data/src/main/java/com/demonwav/mcdev/mixintestdata/meExpression/MEExpressionTestData.java

@@ -0,0 +1,84 @@
+/*
+ * Minecraft Development for IntelliJ
+ *
+ * https://mcdev.io/
+ *
+ * Copyright (C) 2024 minecraft-dev
+ *
+ * This program 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, version 3.0 only.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.demonwav.mcdev.mixintestdata.meExpression;
+
+import java.util.ArrayList;
+import java.util.stream.Stream;
+
+public class MEExpressionTestData {
+    private static final SynchedData<Integer> STINGER_COUNT = null;
+    private SynchedDataManager synchedData;
+
+    public void complexFunction() {
+        int one = 1;
+        String local1 = "Hello";
+        String local2 = "World";
+
+        System.out.println(new StringBuilder(local1).append(", ").append(local2));
+        System.out.println(one);
+
+        new ArrayList<>(10);
+
+        InaccessibleType varOfInaccessibleType = new InaccessibleType();
+        acceptInaccessibleType(varOfInaccessibleType);
+        noArgMethod();
+
+        String[] strings1 = new String[] { local1, local2 };
+        String[] strings2 = new String[one];
+
+        Stream.empty().map(this::nonStaticMapper).map(MEExpressionTestData::staticMapper).map(ConstructedByMethodReference::new);
+    }
+
+    private static void acceptInaccessibleType(InaccessibleType type) {
+    }
+
+    private static void noArgMethod() {
+    }
+
+    public int getStingerCount() {
+        return (Integer) this.synchedData.get(STINGER_COUNT);
+    }
+
+    private Object nonStaticMapper(Object arg) {
+        return arg;
+    }
+
+    private static Object staticMapper(Object arg) {
+        return arg;
+    }
+
+    private static class InaccessibleType {
+
+    }
+
+    public static class SynchedDataManager {
+        public <V> V get(SynchedData<V> data) {
+            return null;
+        }
+    }
+
+    public static class SynchedData<V> {
+    }
+
+    public static class ConstructedByMethodReference {
+        public ConstructedByMethodReference(Object bar) {}
+    }
+}

src/main/grammars/MEExpressionLexer.flex

@@ -0,0 +1,146 @@
+/*
+ * Minecraft Development for IntelliJ
+ *
+ * https://mcdev.io/
+ *
+ * Copyright (C) 2024 minecraft-dev
+ *
+ * This program 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, version 3.0 only.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.demonwav.mcdev.platform.mixin.expression;
+
+import com.demonwav.mcdev.platform.mixin.expression.gen.psi.MEExpressionTypes;
+import com.intellij.lexer.FlexLexer;
+import com.intellij.psi.tree.IElementType;
+import com.intellij.psi.TokenType;
+
+%%
+
+%public
+%class MEExpressionLexer
+%implements FlexLexer
+%function advance
+%type IElementType
+
+%state STRING
+
+%unicode
+
+WHITE_SPACE = [\ \n\t\r]
+RESERVED = assert|break|case|catch|const|continue|default|else|finally|for|goto|if|switch|synchronized|try|while|yield|_
+WILDCARD = "?"
+NEW = new
+INSTANCEOF = instanceof
+BOOL_LIT = true|false
+NULL_LIT = null
+DO = do
+RETURN = return
+THROW = throw
+THIS = this
+SUPER = super
+CLASS = class
+IDENTIFIER = [A-Za-z_][A-Za-z0-9_]*
+INT_LIT = ( [0-9]+ | 0x[0-9a-fA-F]+ )
+DEC_LIT = [0-9]*\.[0-9]+
+PLUS = "+"
+MINUS = -
+MULT = "*"
+DIV = "/"
+MOD = %
+BITWISE_NOT = "~"
+DOT = "."
+COMMA = ,
+LEFT_PAREN = "("
+RIGHT_PAREN = ")"
+LEFT_BRACKET = "["
+RIGHT_BRACKET = "]"
+LEFT_BRACE = "{"
+RIGHT_BRACE = "}"
+AT = @
+SHL = <<
+SHR = >>
+USHR = >>>
+LT = <
+LE = <=
+GT = >
+GE = >=
+EQ = ==
+NE = "!="
+BITWISE_AND = &
+BITWISE_XOR = "^"
+BITWISE_OR = "|"
+ASSIGN = =
+METHOD_REF = ::
+
+STRING_TERMINATOR = '
+STRING_ESCAPE = \\'|\\\\
+
+%%
+
+<YYINITIAL> {
+    {WHITE_SPACE}+ { return TokenType.WHITE_SPACE; }
+    {RESERVED} { return MEExpressionTypes.TOKEN_RESERVED; }
+    {WILDCARD} { return MEExpressionTypes.TOKEN_WILDCARD; }
+    {NEW} { return MEExpressionTypes.TOKEN_NEW; }
+    {INSTANCEOF} { return MEExpressionTypes.TOKEN_INSTANCEOF; }
+    {BOOL_LIT} { return MEExpressionTypes.TOKEN_BOOL_LIT; }
+    {NULL_LIT} { return MEExpressionTypes.TOKEN_NULL_LIT; }
+    {DO} { return MEExpressionTypes.TOKEN_DO; }
+    {RETURN} { return MEExpressionTypes.TOKEN_RETURN; }
+    {THROW} { return MEExpressionTypes.TOKEN_THROW; }
+    {THIS} { return MEExpressionTypes.TOKEN_THIS; }
+    {SUPER} { return MEExpressionTypes.TOKEN_SUPER; }
+    {CLASS} { return MEExpressionTypes.TOKEN_CLASS; }
+    {IDENTIFIER} { return MEExpressionTypes.TOKEN_IDENTIFIER; }
+    {INT_LIT} { return MEExpressionTypes.TOKEN_INT_LIT; }
+    {DEC_LIT} { return MEExpressionTypes.TOKEN_DEC_LIT; }
+    {PLUS} { return MEExpressionTypes.TOKEN_PLUS; }
+    {MINUS} { return MEExpressionTypes.TOKEN_MINUS; }
+    {MULT} { return MEExpressionTypes.TOKEN_MULT; }
+    {DIV} { return MEExpressionTypes.TOKEN_DIV; }
+    {MOD} { return MEExpressionTypes.TOKEN_MOD; }
+    {BITWISE_NOT} { return MEExpressionTypes.TOKEN_BITWISE_NOT; }
+    {DOT} { return MEExpressionTypes.TOKEN_DOT; }
+    {COMMA} { return MEExpressionTypes.TOKEN_COMMA; }
+    {LEFT_PAREN} { return MEExpressionTypes.TOKEN_LEFT_PAREN; }
+    {RIGHT_PAREN} { return MEExpressionTypes.TOKEN_RIGHT_PAREN; }
+    {LEFT_BRACKET} { return MEExpressionTypes.TOKEN_LEFT_BRACKET; }
+    {RIGHT_BRACKET} { return MEExpressionTypes.TOKEN_RIGHT_BRACKET; }
+    {LEFT_BRACE} { return MEExpressionTypes.TOKEN_LEFT_BRACE; }
+    {RIGHT_BRACE} { return MEExpressionTypes.TOKEN_RIGHT_BRACE; }
+    {AT} { return MEExpressionTypes.TOKEN_AT; }
+    {SHL} { return MEExpressionTypes.TOKEN_SHL; }
+    {SHR} { return MEExpressionTypes.TOKEN_SHR; }
+    {USHR} { return MEExpressionTypes.TOKEN_USHR; }
+    {LT} { return MEExpressionTypes.TOKEN_LT; }
+    {LE} { return MEExpressionTypes.TOKEN_LE; }
+    {GT} { return MEExpressionTypes.TOKEN_GT; }
+    {GE} { return MEExpressionTypes.TOKEN_GE; }
+    {EQ} { return MEExpressionTypes.TOKEN_EQ; }
+    {NE} { return MEExpressionTypes.TOKEN_NE; }
+    {BITWISE_AND} { return MEExpressionTypes.TOKEN_BITWISE_AND; }
+    {BITWISE_XOR} { return MEExpressionTypes.TOKEN_BITWISE_XOR; }
+    {BITWISE_OR} { return MEExpressionTypes.TOKEN_BITWISE_OR; }
+    {ASSIGN} { return MEExpressionTypes.TOKEN_ASSIGN; }
+    {METHOD_REF} { return MEExpressionTypes.TOKEN_METHOD_REF; }
+    {STRING_TERMINATOR} { yybegin(STRING); return MEExpressionTypes.TOKEN_STRING_TERMINATOR; }
+}
+
+<STRING> {
+    {STRING_ESCAPE} { return MEExpressionTypes.TOKEN_STRING_ESCAPE; }
+    {STRING_TERMINATOR} { yybegin(YYINITIAL); return MEExpressionTypes.TOKEN_STRING_TERMINATOR; }
+    [^'\\]+ { return MEExpressionTypes.TOKEN_STRING; }
+}
+
+[^] { return TokenType.BAD_CHARACTER; }