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Merge branch 'create-parser' of ssh://gitea.hb.dhbw-stuttgart.de:2222/MisterChaos69/MiniJavaCompiler into bytecode

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mrab 2024-06-26 09:22:49 +02:00
commit c8b3caa2af
2 changed files with 58 additions and 1 deletions
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42
Test/TestParser.hs
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@ -238,6 +238,40 @@ testStatementPreIncrement = TestCase $
assertEqual "expect increment" [StatementExpressionStatement $ PostIncrement $ Reference "a"] $
parseStatement [IDENTIFIER "a",INCREMENT,SEMICOLON]
testForLoop = TestCase $
assertEqual "expect for loop" [Block [
LocalVariableDeclaration (VariableDeclaration "int" "i" (Just (IntegerLiteral 0))),
While (BinaryOperation CompareLessThan (Reference "i") (IntegerLiteral 3)) (Block [Block [], StatementExpressionStatement (PostIncrement (Reference "i"))])
]] $
parseStatement [FOR,LBRACE,INT,IDENTIFIER "i",ASSIGN,INTEGERLITERAL 0,SEMICOLON,IDENTIFIER "i",LESS,INTEGERLITERAL 3,SEMICOLON,IDENTIFIER "i",INCREMENT,RBRACE,LBRACKET,RBRACKET]
testForLoopExpressionlistInInit = TestCase $
assertEqual "expect expressionlist in init part of for loop" [Block [
StatementExpressionStatement (PostIncrement (Reference "i")),
While (BinaryOperation CompareLessThan (Reference "i") (IntegerLiteral 3)) (Block [Block [], StatementExpressionStatement (PostIncrement (Reference "i"))])
]] $
parseStatement [FOR,LBRACE,IDENTIFIER "i",INCREMENT,SEMICOLON,IDENTIFIER "i",LESS,INTEGERLITERAL 3,SEMICOLON,IDENTIFIER "i",INCREMENT,RBRACE,LBRACKET,RBRACKET]
testForLoopMultipleUpdateExpressions = TestCase $
assertEqual "expect for loop with multiple update statements" [Block [
LocalVariableDeclaration (VariableDeclaration "int" "i" (Just (IntegerLiteral 0))),
While (BinaryOperation CompareLessThan (Reference "i") (IntegerLiteral 3)) (Block [Block [], StatementExpressionStatement (PostIncrement (Reference "i")), StatementExpressionStatement (PostIncrement (Reference "k"))])
]] $
parseStatement [FOR,LBRACE,INT,IDENTIFIER "i",ASSIGN,INTEGERLITERAL 0,SEMICOLON,IDENTIFIER "i",LESS,INTEGERLITERAL 3,SEMICOLON,IDENTIFIER "i",INCREMENT,COMMA,IDENTIFIER "k",INCREMENT,RBRACE,LBRACKET,RBRACKET]
testForLoopEmptyFirstPart = TestCase $
assertEqual "expect for loop with empty init part" [Block [
While (BinaryOperation CompareLessThan (Reference "i") (IntegerLiteral 3)) (Block [Block [], StatementExpressionStatement (PostIncrement (Reference "i"))])
]] $
parseStatement [FOR,LBRACE,SEMICOLON,IDENTIFIER "i",LESS,INTEGERLITERAL 3,SEMICOLON,IDENTIFIER "i",INCREMENT,RBRACE,LBRACKET,RBRACKET]
testForLoopEmtpySecondPart = TestCase $
assertEqual "expect for loop with empty expresion part" [Block [
While (BooleanLiteral True) (Block [Block [], StatementExpressionStatement (PostIncrement (Reference "i"))])
]] $
parseStatement [FOR,LBRACE,SEMICOLON,SEMICOLON,IDENTIFIER "i",INCREMENT,RBRACE,LBRACKET,RBRACKET]
testForLoopEmtpy = TestCase $
assertEqual "expect empty for loop" [Block [While (BooleanLiteral True) (Block [Block []])]] $
parseStatement [FOR,LBRACE,SEMICOLON,SEMICOLON,RBRACE,LBRACKET,RBRACKET]
tests = TestList [
testSingleEmptyClass,
@ -308,5 +342,11 @@ tests = TestList [
testStatementMethodCallNoParams,
testStatementConstructorCall,
testStatementConstructorCallWithArgs,
testStatementPreIncrement
testStatementPreIncrement,
testForLoop,
testForLoopExpressionlistInInit,
testForLoopMultipleUpdateExpressions,
testForLoopEmptyFirstPart,
testForLoopEmtpySecondPart,
testForLoopEmtpy
]

17
src/Parser/JavaParser.y
View File

@ -75,6 +75,7 @@ import Parser.Lexer
OREQUAL { OREQUAL }
COLON { COLON }
LESS { LESS }
FOR { FOR }
%%
compilationunit : typedeclarations { $1 }
@ -204,6 +205,7 @@ statement : statementwithouttrailingsubstatement{ $1 } -- statement retu
| ifthenstatement { [$1] }
| ifthenelsestatement { [$1] }
| whilestatement { [$1] }
| forstatement { [$1] }
expression : assignmentexpression { $1 }
@ -224,6 +226,21 @@ ifthenelsestatement : IF LBRACE expression RBRACE statementnoshortif ELSE state
whilestatement : WHILE LBRACE expression RBRACE statement { While $3 (Block $5) }
forstatement : FOR LBRACE forinit optionalexpression forupdate statement { Block ($3 ++ [While ($4) (Block ($6 ++ $5))]) }
forinit : statementexpressionlist SEMICOLON { $1 }
| localvariabledeclaration SEMICOLON { $1 }
| SEMICOLON { [] }
optionalexpression : expression SEMICOLON { $1 }
| SEMICOLON { BooleanLiteral True }
forupdate : statementexpressionlist RBRACE { $1 }
| RBRACE { [] }
statementexpressionlist : statementexpression { [StatementExpressionStatement $1] }
| statementexpressionlist COMMA statementexpression { $1 ++ [StatementExpressionStatement $3] }
assignmentexpression : conditionalexpression { $1 }
| assignment { StatementExpressionExpression $1 }