decrease main class
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@ -1,4 +1,3 @@
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import codegen.CodeGenerator;
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import codegen.analysis.dataflow.DataFlowGraph;
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import codegen.analysis.liveness.LivenessAnalysis;
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import codegen.flowgraph.FlowGraph;
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@ -42,47 +41,12 @@ public final class StupsCompiler {
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System.out.println("Beginning compilation.");
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final long begin = System.nanoTime();
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// File opening + Lexing
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Lexer lexer;
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try {
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// Relativer Pfad
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final Path programPath = Paths.get(System.getProperty("user.dir") + "/" + filename);
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lexer = new StupsLexer(CharStreams.fromPath(programPath));
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} catch (IOException e) {
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try {
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// Absoluter Pfad
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final Path programPath = Paths.get(filename);
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lexer = new StupsLexer(CharStreams.fromPath(programPath));
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} catch (IOException ee) {
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System.out.println("Das Programm konnte nicht gelesen werden.");
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return;
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}
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}
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// Grammar parsing from file
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final Grammar grammar;
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try {
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final Path grammarFile = Paths.get(System.getProperty("user.dir") + "/stups.grammar");
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grammar = Grammar.fromFile(grammarFile);
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} catch (IOException e) {
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System.out.println("Die Grammatik konnte nicht geöffnet werden.");
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return;
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}
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// Parser from Grammar
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final StupsParser stupsParser = StupsParser.fromGrammar(grammar);
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// Parsing + Typechecking of program
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final AST tree = stupsParser.parse(lexer.getAllTokens(), lexer.getVocabulary());
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tree.postprocess(grammar);
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final Map<ASTNode, String> nodeTable = TypeChecker.validate(tree);
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final FlowGraphGenerator gen = getFlowGraphGen(filename);
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final FlowGraph graph = gen.generateGraph();
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// Codegeneration + Output
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final String outputName = filename.replaceFirst("\\.stups", ".j");
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final String sourceCode = CodeGenerator.generateCode(tree, nodeTable, filename);
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final String sourceCode = graph.toString();
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try {
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final Path outputFile = Paths.get(System.getProperty("user.dir") + "/" + outputName);
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Files.writeString(outputFile, sourceCode);
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@ -107,6 +71,14 @@ public final class StupsCompiler {
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private static void liveness(String filename) {
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System.out.println("Liveness-Analyse für " + filename);
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final FlowGraphGenerator gen = getFlowGraphGen(filename);
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final FlowGraph graph = gen.generateGraph();
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final DataFlowGraph dataFlowGraph = DataFlowGraph.fromSourceGraph(graph);
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LivenessAnalysis.doLivenessAnalysis(dataFlowGraph, gen.getVarMap());
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}
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private static FlowGraphGenerator getFlowGraphGen(String filename) {
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// File opening + Lexing
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Lexer lexer;
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try {
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@ -123,7 +95,7 @@ public final class StupsCompiler {
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lexer = new StupsLexer(CharStreams.fromPath(programPath));
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} catch (IOException ee) {
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System.out.println("Das Programm konnte nicht gelesen werden.");
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return;
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throw new IllegalStateException("Das Programm konnte nicht gelesen werden.");
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}
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}
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@ -134,7 +106,7 @@ public final class StupsCompiler {
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grammar = Grammar.fromFile(grammarFile);
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} catch (IOException e) {
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System.out.println("Die Grammatik konnte nicht geöffnet werden.");
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return;
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throw new IllegalStateException("Die Grammatik konnte nicht geöffnet werden.");
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}
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// Parser from Grammar
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@ -145,10 +117,6 @@ public final class StupsCompiler {
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tree.postprocess(grammar);
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final Map<ASTNode, String> nodeTable = TypeChecker.validate(tree);
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final FlowGraphGenerator gen = FlowGraphGenerator.fromAST(tree, nodeTable, filename);
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final FlowGraph graph = gen.generateGraph();
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final DataFlowGraph dataFlowGraph = DataFlowGraph.fromSourceGraph(graph);
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LivenessAnalysis.doLivenessAnalysis(dataFlowGraph, gen.getVarMap());
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return FlowGraphGenerator.fromAST(tree, nodeTable, filename);
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}
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}
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@ -70,7 +70,8 @@ public final class LivenessAnalysis {
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for (Map.Entry<String, Integer> var : varMap.entrySet()) {
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interferenceGraph.add(new InterferenceNode(var.getValue().toString()));
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}
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System.out.println("Interference nodes: " + interferenceGraph);
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Logger.log("Interference nodes: " + interferenceGraph);
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// Determine neighbours
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for (DataFlowNode node : nodes) {
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@ -119,7 +120,7 @@ public final class LivenessAnalysis {
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Logger.call(() -> printInterferenceGraphToPicture(interferenceGraph));
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System.out.println("\nLiveness: " + colors + " register nötig.");
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System.out.println("\nRegisters: " + colors);
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}
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// Printing
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@ -1,5 +1,7 @@
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package util;
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import java.util.function.Supplier;
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// Maximal professioneller Logger
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public final class Logger {
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@ -24,4 +26,10 @@ public final class Logger {
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log(message);
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}
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}
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public static void call(Supplier<String> call) {
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if (enabled) {
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call.get();
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}
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}
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}
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