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[12 - Tree Grammar] Add type check

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Humenius
2020-06-13 19:16:35 +02:00
parent 04c18d4fdf
commit 54d6ea874e
10 changed files with 1726 additions and 173 deletions
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.idea/workspace.xml generated
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@@ -2,22 +2,16 @@
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@@ -144,19 +138,22 @@
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@@ -280,9 +278,9 @@
</state> </state>
<state x="208" y="31" key="SettingsEditor/0.0.1440.900@0.0.1440.900" timestamp="1591172804318" /> <state x="208" y="31" key="SettingsEditor/0.0.1440.900@0.0.1440.900" timestamp="1591172804318" />
<state x="277" y="36" key="SettingsEditor/0.0.1920.1040@0.0.1920.1040" timestamp="1591184318089" /> <state x="277" y="36" key="SettingsEditor/0.0.1920.1040@0.0.1920.1040" timestamp="1591184318089" />
<state x="623" y="225" width="672" height="678" key="search.everywhere.popup" timestamp="1591969820924"> <state x="623" y="225" width="672" height="678" key="search.everywhere.popup" timestamp="1592063655606">
<screen x="0" y="0" width="1920" height="1040" /> <screen x="0" y="0" width="1920" height="1040" />
</state> </state>
<state x="623" y="225" width="672" height="678" key="search.everywhere.popup/0.0.1920.1040/-1920.0.1920.1040@0.0.1920.1040" timestamp="1591969820924" /> <state x="623" y="225" width="672" height="678" key="search.everywhere.popup/0.0.1920.1040/-1920.0.1920.1040@0.0.1920.1040" timestamp="1592063655606" />
</component> </component>
</project> </project>

2
CC-Praxis-Antlr X Uebersetzer-Leer/src/de/dhbw/compiler/antlrxcompiler/AntlrXCompiler.java
View File

@@ -91,6 +91,8 @@ public class AntlrXCompiler {
XTypeCheck typeCheck = new XTypeCheck(new CommonTreeNodeStream(xTreeAdaptor, tree)); XTypeCheck typeCheck = new XTypeCheck(new CommonTreeNodeStream(xTreeAdaptor, tree));
CommonTree typeCheckedTree = typeCheck.program().getTree(); CommonTree typeCheckedTree = typeCheck.program().getTree();
// X to Java // X to Java
XtoJava javaConverter = new XtoJava(new CommonTreeNodeStream(xTreeAdaptor, typeCheckedTree)); XtoJava javaConverter = new XtoJava(new CommonTreeNodeStream(xTreeAdaptor, typeCheckedTree));
StringTemplate template = (StringTemplate) javaConverter.program().getTemplate(); StringTemplate template = (StringTemplate) javaConverter.program().getTemplate();

2
CC-Praxis-Antlr X Uebersetzer-Leer/src/de/dhbw/compiler/antlrxcompiler/X.g
View File

@@ -60,7 +60,7 @@ decl: ID ':' (type='int' | type='float' | type='string') ';' -> ^(DECL ID
decllist: decl* -> ^(DECLLIST decl*); decllist: decl* -> ^(DECLLIST decl*);
// Ausdr<64>cke // Ausdr<64>cke
expr: multexpr (('+'^ | '-'^) multexpr)*; expr: multexpr (('+'^ | '-'^) multexpr)*;
multexpr: simpleexpr (('*'^ | '/'^) simpleexpr)*; multexpr: simpleexpr (('*'^ | '/'^) simpleexpr)*;
simpleexpr: '('! expr ')'! simpleexpr: '('! expr ')'!
| INTCONST | '-' INTCONST -> ^(UMINUS INTCONST) | INTCONST | '-' INTCONST -> ^(UMINUS INTCONST)

170
CC-Praxis-Antlr X Uebersetzer-Leer/src/de/dhbw/compiler/antlrxcompiler/XTypeCheck.g
View File

@@ -1,14 +1,3 @@
/* **********************************************
* Duale Hochschule Baden-Württemberg Karlsruhe
* Prof. Dr. Jörn Eisenbiegler
*
* Vorlesung Übersetzerbau
* Praxis ANTLR-Übersetzer für X
* - Typ-Prüfung
*
* **********************************************
*/
tree grammar XTypeCheck; tree grammar XTypeCheck;
options { options {
@@ -23,108 +12,105 @@ tokens{
} }
@header { @header {
package de.dhbw.compiler.antlrxcompiler; package de.dhbw.compiler.antlrxcompiler;
import java.util.HashMap; import java.util.HashMap;
} }
@members { @members {
private SymbolTable symbols = SymbolTable.getInstance(); private SymbolTable symbols = SymbolTable.getInstance();
private void error(XTree tree, String message) { private void logError(XTree tree, String message) {
System.err.println("Error at "+tree.getLine()+","+tree.getCharPositionInLine()+": "+message); System.err.println(message + "\n\t" + tree);
} }
} }
// Deklarationen
decl: decl:
^(DECL ID 'int' r='read'? p='print'?) ^(DECL ID type='int' read='read'? print='print'?)
{ symbols.put($ID.text, new Symbol($ID.text, XType.IntType, $r!=null, $p!=null)); } { symbols.put($ID.text, new Symbol($ID.text, XType.IntType, ($read != null), ($print != null))); }
| ^(DECL ID 'float' r='read'? p='print'?) | ^(DECL ID type='float' read='read'? print='print'?)
{ symbols.put($ID.text, new Symbol($ID.text, XType.FloatType, $r!=null, $p!=null)); } { symbols.put($ID.text, new Symbol($ID.text, XType.FloatType, ($read != null), ($print != null))); }
| ^(DECL ID 'string' r='read'? p='print'?) | ^(DECL ID type='string' read='read'? print='print'?)
{ symbols.put($ID.text, new Symbol($ID.text, XType.StringType, $r!=null, $p!=null)); } ; { symbols.put($ID.text, new Symbol($ID.text, XType.StringType, ($read != null), ($print != null))); }
;
decllist: ^(DECLLIST decl*); decllist: ^(DECLLIST decl*);
// Expr und Cond!!
expr: expr:
^(op=('+' | '-' | '/' | '*') left=expr right=expr)
^(op=('+' | '-' | '/' | '*') l=expr r=expr) {
{ if ($left.tree.exprType == XType.IntType && $right.tree.exprType == XType.IntType) {
if ($l.tree.exprType==XType.IntType && $r.tree.exprType==XType.IntType) { $op.tree.exprType = XType.IntType;
$op.tree.exprType=XType.IntType; } else if (($left.tree.exprType == XType.FloatType || $left.tree.exprType == XType.IntType) &&
} else if (($l.tree.exprType==XType.IntType || $l.tree.exprType==XType.FloatType) && ($right.tree.exprType == XType.FloatType || $right.tree.exprType == XType.IntType)) {
($r.tree.exprType==XType.IntType || $r.tree.exprType==XType.FloatType)) { $op.tree.exprType = XType.FloatType;
$op.tree.exprType=XType.FloatType; } else if ($left.tree.exprType == XType.StringType && $right.tree.exprType == XType.StringType && $op.type == PLUS) {
} else if ($l.tree.exprType==XType.StringType && $r.tree.exprType==XType.StringType && $op.type==PLUS) { $op.tree.exprType = XType.StringType;
$op.tree.exprType=XType.StringType; } else {
} else { $op.tree.exprType = XType.InvalidType;
$op.tree.exprType=XType.InvalidType; logError($op, "Invalid operator '" + $op.text + "' for '" + $left.tree.exprType + "' and '" + $right.tree.exprType + "'");
error($op,$op.text+" is not valid for operands "+$l.tree.exprType+" and "+$r.tree.exprType+"."); }
} }
} | ^(op=UMINUS e=expr) { $op.tree.exprType = $e.tree.exprType; }
| INTCONST { $INTCONST.tree.exprType = XType.IntType; }
| FLOATCONST { $FLOATCONST.tree.exprType = XType.FloatType; }
| STRINGCONST { $STRINGCONST.tree.exprType = XType.StringType; }
| ID {
if (symbols.containsKey($ID.text)) {
$ID.tree.exprType = symbols.get($ID.text).type;
} else {
$ID.tree.exprType = XType.InvalidType;
logError($ID, "'" + $ID.text + "' is not defined.");
}
}
;
| ^(op=UMINUS e=expr) assignstat:
{ ^(op=':=' ID e=expr)
$op.tree.exprType=$e.tree.exprType; {
} if (!symbols.containsKey($ID.text)) {
$ID.tree.exprType = XType.InvalidType;
$op.tree.exprType = XType.InvalidType;
logError($ID, "Undeclared var '" + $ID.text + "'");
} else {
$ID.tree.exprType = symbols.get($ID.text).type;
| INTCONST { $INTCONST.tree.exprType=XType.IntType; } // float <- int
| FLOATCONST { $FLOATCONST.tree.exprType=XType.FloatType; } if ($ID.tree.exprType == XType.FloatType && $e.tree.exprType == XType.IntType) {
| STRINGCONST { $STRINGCONST.tree.exprType=XType.StringType; } $op.tree.exprType = XType.FloatType;
| ID { if (!symbols.containsKey($ID.text)) { } else if ($ID.tree.exprType != $expr.tree.exprType) {
$ID.tree.exprType=XType.InvalidType; $op.tree.exprType = XType.InvalidType;
error($ID,"Variable "+$ID.text+" is not defined."); logError($op, "Cannot assign <" + $expr.tree.exprType + "> to <" + $ID.tree.exprType + ">");
} else { } else {
$ID.tree.exprType=symbols.get($ID.text).type; $op.tree.exprType = $ID.tree.exprType;
} }
}; }
// Zuweisungen
assignstat: ^(op=':=' ID expr)
{ if (!symbols.containsKey($ID.text)) {
$ID.tree.exprType=XType.InvalidType;
$op.tree.exprType=XType.InvalidType;
error($ID,"Variable "+$ID.text+" is not defined.");
} else {
$ID.tree.exprType=symbols.get($ID.text).type;
if ($ID.tree.exprType==XType.FloatType && $expr.tree.exprType==XType.IntType) {
$op.tree.exprType=XType.FloatType;
} else if ($ID.tree.exprType!=$expr.tree.exprType) {
$op.tree.exprType=XType.InvalidType;
error($op,"An expression of type "+$expr.tree.exprType+
" cannot be assigned to a variable of type "+$ID.tree.exprType+".");
} else {
$op.tree.exprType=$ID.tree.exprType;
}
} }
}; ;
// Bedingungen cond:
cond: ^(op=('<' |'>' |'=') l=expr r=expr) ^(op=('<' | '>' | '=') left=expr right=expr)
{ if ($l.tree.exprType==XType.StringType || $r.tree.exprType==XType.StringType) { {
error($op,$op.text+" is not valid for string operands."); if ($left.tree.exprType == XType.StringType || $right.tree.exprType == XType.StringType) {
} else if ($l.tree.exprType==XType.IntType && $r.tree.exprType==XType.IntType) { $op.tree.exprType = XType.InvalidType;
$op.tree.exprType=XType.IntType; logError($op, "Cannot use operator '" + $op.text + "' on '" + $left.text + "' and '" + $right.text + "'");
} else { } else if ($left.tree.exprType == XType.IntType && $right.tree.exprType == XType.IntType) {
$op.tree.exprType=XType.FloatType; $op.tree.exprType = XType.IntType;
} else {
$op.tree.exprType = XType.FloatType;
}
} }
}; ;
// Bedingte Zuweisung condstat: ^(op='if' cond stat stat?);
condstat: ^('if' cond stat stat?);
// Schleifen whilestat: ^('while' cond stat);
whilestat: ^('while' cond stat); forstat: ^('for' assignstat cond assignstat stat);
forstat: ^('for' assignstat cond assignstat stat);
// Anweisungen stat: assignstat | condstat | whilestat | forstat | statlist;
stat: assignstat | condstat | whilestat | forstat | statlist;
statlist: ^(STATLIST stat*); statlist: ^(STATLIST stat*);
// Programme program: { symbols.clear(); } ^('program' ID decllist statlist);
program: { symbols.clear(); } ^('program' ID decllist statlist);

1614
CC-Praxis-Antlr X Uebersetzer-Leer/src/de/dhbw/compiler/antlrxcompiler/XTypeCheck.java
View File

File diff suppressed because it is too large Load Diff

2
CC-Praxis-Antlr X Uebersetzer-Leer/src/de/dhbw/compiler/antlrxcompiler/XTypeCheck.tokens
View File

@@ -40,7 +40,6 @@ STRINGCONST=16
UMINUS=17 UMINUS=17
WS=18 WS=18
ZERO=19 ZERO=19
T__46=46
PLUS=23 PLUS=23
'('=20 '('=20
')'=21 ')'=21
@@ -68,4 +67,3 @@ PLUS=23
'string'=43 'string'=43
'then'=44 'then'=44
'while'=45 'while'=45
'todo'=46

8
CC-Praxis-Antlr X Uebersetzer-Leer/src/de/dhbw/compiler/antlrxcompiler/test/OptimizerTest.java
View File

@@ -16,17 +16,11 @@ import static org.junit.Assert.assertEquals;
import java.io.ByteArrayInputStream; import java.io.ByteArrayInputStream;
import de.dhbw.compiler.antlrxcompiler.*;
import org.antlr.runtime.ANTLRInputStream; import org.antlr.runtime.ANTLRInputStream;
import org.antlr.runtime.CommonTokenStream; import org.antlr.runtime.CommonTokenStream;
import org.antlr.runtime.tree.CommonTreeNodeStream; import org.antlr.runtime.tree.CommonTreeNodeStream;
import de.dhbw.compiler.antlrxcompiler.XLexer;
import de.dhbw.compiler.antlrxcompiler.XOptimizer;
import de.dhbw.compiler.antlrxcompiler.XParser;
import de.dhbw.compiler.antlrxcompiler.XTree;
import de.dhbw.compiler.antlrxcompiler.XTreeAdaptor;
import de.dhbw.compiler.antlrxcompiler.XTypeCheck;
public abstract class OptimizerTest { public abstract class OptimizerTest {
protected void testTypeCheckTree(String in, String expected) throws Exception { protected void testTypeCheckTree(String in, String expected) throws Exception {

2
CC-Praxis-Antlr X Uebersetzer-Leer/src/de/dhbw/compiler/antlrxcompiler/test/ParseTreeTest.java
View File

@@ -16,6 +16,7 @@ import static org.junit.Assert.assertEquals;
import java.io.ByteArrayInputStream; import java.io.ByteArrayInputStream;
import de.dhbw.compiler.antlrxcompiler.XTreeAdaptor;
import org.antlr.runtime.ANTLRInputStream; import org.antlr.runtime.ANTLRInputStream;
import org.antlr.runtime.CommonTokenStream; import org.antlr.runtime.CommonTokenStream;
import org.antlr.runtime.ParserRuleReturnScope; import org.antlr.runtime.ParserRuleReturnScope;
@@ -23,7 +24,6 @@ import org.antlr.runtime.tree.CommonTree;
import de.dhbw.compiler.antlrxcompiler.XLexer; import de.dhbw.compiler.antlrxcompiler.XLexer;
import de.dhbw.compiler.antlrxcompiler.XParser; import de.dhbw.compiler.antlrxcompiler.XParser;
import de.dhbw.compiler.antlrxcompiler.XTreeAdaptor;
public abstract class ParseTreeTest { public abstract class ParseTreeTest {

7
CC-Praxis-Antlr X Uebersetzer-Leer/src/de/dhbw/compiler/antlrxcompiler/test/TypeCheckTest.java
View File

@@ -16,16 +16,11 @@ import static org.junit.Assert.assertEquals;
import java.io.ByteArrayInputStream; import java.io.ByteArrayInputStream;
import de.dhbw.compiler.antlrxcompiler.*;
import org.antlr.runtime.ANTLRInputStream; import org.antlr.runtime.ANTLRInputStream;
import org.antlr.runtime.CommonTokenStream; import org.antlr.runtime.CommonTokenStream;
import org.antlr.runtime.tree.CommonTreeNodeStream; import org.antlr.runtime.tree.CommonTreeNodeStream;
import de.dhbw.compiler.antlrxcompiler.XLexer;
import de.dhbw.compiler.antlrxcompiler.XParser;
import de.dhbw.compiler.antlrxcompiler.XTree;
import de.dhbw.compiler.antlrxcompiler.XTreeAdaptor;
import de.dhbw.compiler.antlrxcompiler.XTypeCheck;
public abstract class TypeCheckTest { public abstract class TypeCheckTest {
protected void testTypeCheckTree(String in, String expected) throws Exception { protected void testTypeCheckTree(String in, String expected) throws Exception {