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correct indentation in .j

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ChUrl
2021-01-22 13:05:52 +01:00
parent 1d4aa6aca2
commit 27201dfd0d
1 changed files with 21 additions and 18 deletions
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39
src/main/java/codegen/CodeGenerator.java
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@ -111,8 +111,8 @@ public final class CodeGenerator {
this.generateConstructor(); this.generateConstructor();
this.generateMain(); this.generateMain();
log("Jasmin Assembler:\n" + this.jasmin); log("Jasmin Assembler:\n" + "-".repeat(100) + "\n" + this.jasmin + "-".repeat(100));
System.out.println("Code-generation successfull."); System.out.println("Code-generation successful.");
return this.jasmin; return this.jasmin;
} }
@ -123,13 +123,13 @@ public final class CodeGenerator {
// TODO: Variablengröße // TODO: Variablengröße
private void generateMain() { private void generateMain() {
this.jasmin.append(".method public static main([Ljava/lang/String;)V\n") this.jasmin.append(".method public static main([Ljava/lang/String;)V\n")
.append(".limit stack 10\n") .append("\t.limit stack 10\n")
.append(".limit locals ").append(this.varMap.size() + 1).append("\n"); .append("\t.limit locals ").append(this.varMap.size() + 1).append("\n");
// Needs to be skipped to not trigger generation for IDENTIFIER: args or IDENTIFIER: ClassName // Needs to be skipped to not trigger generation for IDENTIFIER: args or IDENTIFIER: ClassName
this.generateNode(this.tree.getRoot().getChildren().get(3).getChildren().get(11)); this.generateNode(this.tree.getRoot().getChildren().get(3).getChildren().get(11));
this.jasmin.append("return\n") this.jasmin.append("\t\treturn\n")
.append(".end method\n"); .append(".end method\n");
log("Generated Jasmin Main.\n"); log("Generated Jasmin Main.\n");
@ -157,13 +157,13 @@ public final class CodeGenerator {
this.generateNode(node.getChildren().get(0)); this.generateNode(node.getChildren().get(0));
// Jump // Jump
this.jasmin.append("ifeq LabelFalse").append(this.labelCounter).append("\n") this.jasmin.append("\t\tifeq LabelFalse").append(this.labelCounter).append("\n")
.append("ifne LabelTrue").append(this.labelCounter).append("\n"); .append("\t\tifne LabelTrue").append(this.labelCounter).append("\n");
// If branch // If branch
this.jasmin.append("LabelTrue").append(this.labelCounter).append(":\n"); this.jasmin.append("LabelTrue").append(this.labelCounter).append(":\n");
this.generateNode(node.getChildren().get(1)); this.generateNode(node.getChildren().get(1));
this.jasmin.append("goto LabelFinish").append(this.labelCounter).append("\n"); this.jasmin.append("\t\tgoto LabelFinish").append(this.labelCounter).append("\n");
// Else branch // Else branch
this.jasmin.append("LabelFalse").append(this.labelCounter).append(":\n"); this.jasmin.append("LabelFalse").append(this.labelCounter).append(":\n");
@ -172,7 +172,7 @@ public final class CodeGenerator {
this.generateNode(node.getChildren().get(2)); this.generateNode(node.getChildren().get(2));
} }
this.jasmin.append("goto LabelFinish").append(this.labelCounter).append("\n"); // Optional this.jasmin.append("\t\tgoto LabelFinish").append(this.labelCounter).append("\n"); // Optional
this.jasmin.append("LabelFinish").append(this.labelCounter).append(":\n"); this.jasmin.append("LabelFinish").append(this.labelCounter).append(":\n");
} }
@ -189,7 +189,8 @@ public final class CodeGenerator {
log("assign(): " + node.getName() + ": " + node.getValue() + " => " + inst); log("assign(): " + node.getName() + ": " + node.getValue() + " => " + inst);
this.jasmin.append(inst) this.jasmin.append("\t\t")
.append(inst)
.append(this.varMap.get(node.getValue())) .append(this.varMap.get(node.getValue()))
.append("\n"); .append("\n");
} }
@ -204,7 +205,7 @@ public final class CodeGenerator {
inst = switch (node.getValue()) { //!: Type dependant inst = switch (node.getValue()) { //!: Type dependant
case "ADD" -> ""; case "ADD" -> "";
case "SUB" -> "ldc -1\nimul"; case "SUB" -> "ldc -1\n\t\timul";
// case "NOT" -> ... // case "NOT" -> ...
default -> throw new IllegalStateException("Unexpected value: " + node.getValue()); default -> throw new IllegalStateException("Unexpected value: " + node.getValue());
}; };
@ -226,7 +227,8 @@ public final class CodeGenerator {
log("expr(): " + node.getName() + ": " + node.getValue() + " => " + inst); log("expr(): " + node.getName() + ": " + node.getValue() + " => " + inst);
this.jasmin.append(inst) this.jasmin.append("\t\t")
.append(inst)
.append("\n"); .append("\n");
} }
@ -236,7 +238,7 @@ public final class CodeGenerator {
log("literal(): " + node.getName() + ": " + node.getValue() + " => ldc"); log("literal(): " + node.getName() + ": " + node.getValue() + " => ldc");
// bipush only pushes 1 byte as int // bipush only pushes 1 byte as int
this.jasmin.append("ldc ") this.jasmin.append("\t\tldc ")
.append(node.getValue()) .append(node.getValue())
.append("\n"); .append("\n");
} }
@ -245,7 +247,7 @@ public final class CodeGenerator {
log("literal(): " + node.getName() + ": " + node.getValue() + " => ldc"); log("literal(): " + node.getName() + ": " + node.getValue() + " => ldc");
// bipush only pushes 1 byte as int // bipush only pushes 1 byte as int
this.jasmin.append("ldc ") this.jasmin.append("\t\tldc ")
.append(node.getValue()) .append(node.getValue())
.append("\n"); .append("\n");
} }
@ -255,7 +257,7 @@ public final class CodeGenerator {
final String val = "true".equals(node.getValue()) ? "1" : "0"; final String val = "true".equals(node.getValue()) ? "1" : "0";
this.jasmin.append("ldc ") this.jasmin.append("\t\tldc ")
.append(val) .append(val)
.append("\n"); .append("\n");
} }
@ -270,13 +272,14 @@ public final class CodeGenerator {
log("identifier(): " + node.getName() + ": " + node.getValue() + " => " + inst); log("identifier(): " + node.getName() + ": " + node.getValue() + " => " + inst);
this.jasmin.append(inst) this.jasmin.append("\t\t")
.append(inst)
.append(this.varMap.get(node.getValue())) .append(this.varMap.get(node.getValue()))
.append("\n"); .append("\n");
} }
private void println(ASTNode node) { private void println(ASTNode node) {
this.jasmin.append("getstatic java/lang/System/out Ljava/io/PrintStream;\n"); // Push System.out to stack this.jasmin.append("\t\tgetstatic java/lang/System/out Ljava/io/PrintStream;\n"); // Push System.out to stack
final ASTNode expr = node.getChildren().get(1).getChildren().get(1); final ASTNode expr = node.getChildren().get(1).getChildren().get(1);
final String type = switch (this.nodeTypeMap.get(expr)) { final String type = switch (this.nodeTypeMap.get(expr)) {
@ -290,7 +293,7 @@ public final class CodeGenerator {
log("println(): " + expr.getName() + ": " + expr.getValue() + " => " + type); log("println(): " + expr.getName() + ": " + expr.getValue() + " => " + type);
this.jasmin.append("invokevirtual java/io/PrintStream/println(") this.jasmin.append("\t\tinvokevirtual java/io/PrintStream/println(")
.append(type) .append(type)
.append(")V\n"); .append(")V\n");
} }