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CASTParserTests.class.st
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CASTParserTests.class.st
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"
A few tests to explore the ambiguity of a GLR grammar.
"
Class {
#name : #CASTParserTests,
#superclass : #TestCase,
#category : #'CAST-Tests'
}
{ #category : #examples }
CASTParserTests class >> ambiguityAsAttribute [
<example>
| block |
block := [ :in :others |
in
ifNotNil: [ in isCollection
ifTrue: [ 1 to: in size do:
[ :i | block value: (in at: i) value: (others collect: [ :e | e at: i ]) ] ]
ifFalse: [ others do: [ :i | in ambiguous: i ] ] ] ].
^ [ CASTParser
parse:
' void f(int i) {
i * i;
} ' ]
on: SmaCCAmbiguousResultNotification
do: [ :ex |
| results |
results := ex tag
collect: [ :t | t performOnSmaCCParser: ex parser ].
block value: results first value: results allButFirst.
ex resume: results first ]
]
{ #category : #examples }
CASTParserTests class >> ambiguityAsAttribute2 [
<example>
| block |
block := [ :in :others |
in
ifNotNil: [ in isCollection
ifTrue: [ 1 to: in size do:
[ :i | block value: (in at: i) value: (others collect: [ :e | e at: i ]) ] ]
ifFalse: [ others do: [ :i | in ambiguous: i ] ] ] ].
^ [ CASTParser parse: ' int i;' ]
on: SmaCCAmbiguousResultNotification
do: [ :ex |
| results |
results := ex tag
collect: [ :t | t performOnSmaCCParser: ex parser ].
block value: results first value: results allButFirst.
ex resume: results first ]
]
{ #category : #examples }
CASTParserTests class >> ambiguityAsAttribute3 [
<example>
| block |
block := [ :in :others |
in
ifNotNil: [ in isCollection
ifTrue: [ 1 to: in size do:
[ :i | block value: (in at: i) value: (others collect: [ :e | e at: i ]) ] ]
ifFalse: [ in attributeNamed: #ambiguous put: others ] ] ].
^ [ CASTParser
parse:
' int i; void f() { i * i; }' ]
on: SmaCCAmbiguousResultNotification
do: [ :ex |
| results |
results := ex tag
collect: [ :t | t performOnSmaCCParser: ex parser ].
block value: results first value: results allButFirst.
ex resume: results first ]
]
{ #category : #examples }
CASTParserTests class >> inspectingAmbiguousNotification [
<example>
[ CASTParser
parse:
' void f(int i) {
i * i;
} ' ]
on: SmaCCAmbiguousResultNotification
do: [ :ex |
ex inspect.
ex resume: ex tag first ]
]
{ #category : #examples }
CASTParserTests class >> inspectingAmbiguousNotificationWithHalt [
<example>
[ CASTParser
parse:
'typedef int i;
void f() {
i * i;
}' ]
on: SmaCCAmbiguousResultNotification
do: [ :ex |
self halt.
ex resume: ex tag first ]
]
{ #category : #helpers }
CASTParserTests >> parseDeclaration: aStratement [
| unit |
unit := CASTParser parse: 'int f(){
', aStratement ,';
}'.
^ unit declarations first declarations first
]
{ #category : #helpers }
CASTParserTests >> parseExpression: anExpression [
^ self parseStatement: anExpression, ';'
]
{ #category : #helpers }
CASTParserTests >> parseStatement: aStratement [
| unit |
unit := CASTParser parse: 'int f(){
', aStratement ,'
}'.
^ unit declarations first statements first
]
{ #category : #'tests-assignment' }
CASTParserTests >> testParseAccumulatingAssignment [
| assignment |
assignment := self parseExpression: 'a += 1'.
self assert: assignment isExpression.
self assert: assignment lvalue name equals: 'a'.
self assert: assignment operator equals: '+='.
]
{ #category : #'tests-binary operators' }
CASTParserTests >> testParseAddition [
| expression |
expression := self parseExpression: 'a+2'.
self assert: expression isExpression.
self assert: expression isBinaryOperation.
self assert: expression operator equals: '+'
]
{ #category : #'tests-binary operators' }
CASTParserTests >> testParseAdditionPrecedence [
| expression |
expression := self parseExpression: 'a+2+1'.
self assert: expression isExpression.
self assert: expression isBinaryOperation.
self assert: expression operator equals: '+'.
self assert: expression left isExpression.
self assert: expression left isBinaryOperation.
self assert: expression left operator equals: '+'.
self assert: expression left left name equals: 'a'.
self assert: expression left right value equals: '2'.
self assert: expression right value equals: '1'.
]
{ #category : #'tests-binary operators' }
CASTParserTests >> testParseAdressOf [
| expression |
expression := self parseExpression: '&a'.
self assert: expression isUnaryOperation.
self assert: expression operator equals: '&'
]
{ #category : #'tests-declarators' }
CASTParserTests >> testParseArrayDeclarationWithInitializer [
| declaration declarator |
declaration := self parseDeclaration: 'int a[] = foo()'.
self assert: (declaration specifiers includes: 'int').
self assert: declaration declarators size equals: 1.
declarator := declaration declarators first.
self assert: declarator isInitializerDeclarator.
self assert: declarator initializer isFunctionCall.
"Inside the initializer declarator is the array declarator"
declarator := declarator declarator.
self assert: declarator isArrayDeclarator.
self assert: declarator size equals: nil.
self assert: declarator declarator name equals: 'a'.
]
{ #category : #'tests-declarators' }
CASTParserTests >> testParseArrayDeclarationWithSize [
| declaration declarator |
declaration := self parseDeclaration: 'int a[17]'.
self assert: (declaration specifiers includes: 'int').
self assert: declaration declarators size equals: 1.
declarator := declaration declarators first.
self assert: declarator isArrayDeclarator.
self assert: declarator size value equals: '17'.
self assert: declarator declarator name equals: 'a'.
]
{ #category : #'tests-basic expressions' }
CASTParserTests >> testParseArrayNode [
| expression |
expression := self parseExpression: 'a[1]'.
self assert: expression isExpression.
self assert: expression isArrayAccessNode.
self assert: expression array name equals: 'a'.
self assert: expression index value equals: '1'.
]
{ #category : #'tests-assignment' }
CASTParserTests >> testParseAssignment [
| assignment |
assignment := self parseExpression: 'a = 1'.
self assert: assignment isExpression.
self assert: assignment lvalue name equals: 'a'.
self assert: assignment operator equals: '='.
]
{ #category : #'tests-calls' }
CASTParserTests >> testParseCall [
| expression |
expression := self parseExpression: 'toto()'.
self assert: expression isExpression.
self assert: expression isFunctionCall.
self assert: expression identifier name equals: 'toto'.
self assert: expression arguments isEmpty.
]
{ #category : #'tests-calls' }
CASTParserTests >> testParseCallWithArguments [
| expression |
expression := self parseExpression: 'toto(1, foo(), 1+2)'.
self assert: expression isExpression.
self assert: expression isFunctionCall.
self assert: expression identifier name equals: 'toto'.
self assert: expression arguments first isConstant.
self assert: expression arguments second isFunctionCall.
self assert: expression arguments third isBinaryOperation.
]
{ #category : #'tests-control flow' }
CASTParserTests >> testParseCastExpression [
| statement |
statement := self parseStatement: '(int)2.1'.
self assert: statement isCastExpression.
self assert: statement type equals: 'int'
]
{ #category : #'tests-basic expressions' }
CASTParserTests >> testParseCommaSeparatedExpression [
| expression commaSeparatedExpression |
expression := self parseExpression: 'a = (1,foo(2),1+2)'.
commaSeparatedExpression := expression rvalue.
self assert: commaSeparatedExpression isCommaSeparatedExpression.
self assert: commaSeparatedExpression expressions first isConstant.
self assert: commaSeparatedExpression expressions second isFunctionCall.
self assert: commaSeparatedExpression expressions third isBinaryOperation.
]
{ #category : #'tests-compound statements' }
CASTParserTests >> testParseCompoundStatement [
| statement |
statement := self parseStatement: '{
1;
2;
3;
}'.
self assert: statement isCompoundStatement.
self assert: statement statements first value equals: '1'.
self assert: statement statements second value equals: '2'.
self assert: statement statements third value equals: '3'.
]
{ #category : #'tests-assignment' }
CASTParserTests >> testParseDecrementingAssignment [
| assignment |
assignment := self parseExpression: 'a -= 1'.
self assert: assignment isExpression.
self assert: assignment lvalue name equals: 'a'.
self assert: assignment operator equals: '-='.
]
{ #category : #'tests-assignment' }
CASTParserTests >> testParseDividingAssignment [
| assignment |
assignment := self parseExpression: 'a /= 1'.
self assert: assignment isExpression.
self assert: assignment lvalue name equals: 'a'.
self assert: assignment operator equals: '/='.
]
{ #category : #'tests-compound statements' }
CASTParserTests >> testParseEmptyCompoundStatement [
| statement |
statement := self parseStatement: '{
}'.
self assert: statement isCompoundStatement.
self assert: statement statements isEmpty
]
{ #category : #'tests-basic expressions' }
CASTParserTests >> testParseEmptyStatement [
| unit |
unit := CASTParser parse: 'int f(int toto){ ; } '.
self assert: unit declarations first statements first isEmptyStatement.
]
{ #category : #'tests-numbers' }
CASTParserTests >> testParseFloatingPointConstant [
| unit firstStatement |
unit := CASTParser parse: 'int f(){
17.2333;
}'.
firstStatement := unit declarations first statements first.
self assert: firstStatement isExpression.
self assert: firstStatement isConstant.
self assert: firstStatement value equals: '17.2333'.
]
{ #category : #'tests-declarators' }
CASTParserTests >> testParseFunctionDeclarator [
| declaration declarator |
declaration := self parseDeclaration: 'int f(void)'.
self assert: (declaration specifiers includes: 'int').
self assert: declaration declarators size equals: 1.
declarator := declaration declarators first.
self assert: declarator isFunctionDeclarator.
self assert: declarator declarator name equals: 'f'.
self assert: declarator parameters size equals: 1.
]
{ #category : #'tests-declarators' }
CASTParserTests >> testParseFunctionPointerDeclarator [
| declaration declarator |
declaration := self parseDeclaration: 'int (*pf)(void)'.
self assert: (declaration specifiers includes: 'int').
self assert: declaration declarators size equals: 1.
declarator := declaration declarators first.
self assert: declarator isFunctionDeclarator.
self assert: declarator declarator isPointerDeclarator.
self assert: declarator declarator declarator name equals: 'pf'.
]
{ #category : #'tests-numbers' }
CASTParserTests >> testParseGoTo [
| unit firstStatement |
unit := CASTParser parse: 'int f(){
goto toto;
}'.
firstStatement := unit declarations first statements first.
self assert: firstStatement isGoTo.
self assert: firstStatement label isIdentifier.
self assert: firstStatement label name equals: 'toto'.
]
{ #category : #'tests-numbers' }
CASTParserTests >> testParseHexadecimalIntegerConstantConstant [
| unit firstStatement |
unit := CASTParser parse: 'int f(){
0x7;
}'.
firstStatement := unit declarations first statements first.
self assert: firstStatement isExpression.
self assert: firstStatement isConstant.
self assert: firstStatement value equals: '0x7'.
]
{ #category : #'tests-numbers' }
CASTParserTests >> testParseHexadecimalIntegerConstantConstant2 [
| unit firstStatement |
unit := CASTParser parse: 'int f(){
0X7;
}'.
firstStatement := unit declarations first statements first.
self assert: firstStatement isExpression.
self assert: firstStatement isConstant.
self assert: firstStatement value equals: '0X7'.
]
{ #category : #'tests-basic expressions' }
CASTParserTests >> testParseIdentifier [
| expression |
expression := self parseExpression: 'a'.
self assert: expression isExpression.
self assert: expression isIdentifier.
self assert: expression name equals: 'a'.
]
{ #category : #'tests-control flow' }
CASTParserTests >> testParseIfElse [
| statement |
statement := self parseStatement: 'if (a) { } else { }'.
self assert: statement isIf.
self assert: statement else notNil
]
{ #category : #'tests-control flow' }
CASTParserTests >> testParseIfNoElse [
| statement |
statement := self parseStatement: 'if (a) { }'.
self assert: statement isIf.
self assert: statement else isNil
]
{ #category : #'tests-numbers' }
CASTParserTests >> testParseIntegerConstant [
| unit firstStatement |
unit := CASTParser parse: 'int f(){
17;
}'.
firstStatement := unit declarations first statements first.
self assert: firstStatement isExpression.
self assert: firstStatement isConstant.
self assert: firstStatement value equals: '17'.
]
{ #category : #'tests-control flow' }
CASTParserTests >> testParseLabelledEmptyStatement [
| statement |
statement := self parseStatement: 'label:;'.
self assert: statement isLabelledStatement.
self assert: statement label name equals: 'label'.
self assert: statement case isNil.
self assert: statement statement isEmptyStatement
]
{ #category : #'tests-control flow' }
CASTParserTests >> testParseLabelledStatement [
| statement |
statement := self parseStatement: 'label: 1+2;'.
self assert: statement isLabelledStatement.
self assert: statement label name equals: 'label'.
self assert: statement case isNil.
self assert: statement statement isBinaryOperation
]
{ #category : #'tests-numbers' }
CASTParserTests >> testParseLongIntegerConstantConstant [
| unit firstStatement |
unit := CASTParser parse: 'int f(){
7L;
}'.
firstStatement := unit declarations first statements first.
self assert: firstStatement isExpression.
self assert: firstStatement isConstant.
self assert: firstStatement value equals: '7L'.
]
{ #category : #'tests-numbers' }
CASTParserTests >> testParseLongIntegerConstantConstant2 [
| unit firstStatement |
unit := CASTParser parse: 'int f(){
7l;
}'.
firstStatement := unit declarations first statements first.
self assert: firstStatement isExpression.
self assert: firstStatement isConstant.
self assert: firstStatement value equals: '7l'.
]
{ #category : #'tests-binary operators' }
CASTParserTests >> testParseMultiplication [
| expression |
expression := self parseExpression: 'a*2'.
self assert: expression isExpression.
self assert: expression isBinaryOperation.
self assert: expression operator equals: '*'
]
{ #category : #'tests-binary operators' }
CASTParserTests >> testParseMultiplicationPrecedenceOverAddition [
| expression |
expression := self parseExpression: 'a+2*1'.
self assert: expression isExpression.
self assert: expression isBinaryOperation.
self assert: expression operator equals: '+'.
self assert: expression left name equals: 'a'.
self assert: expression right isExpression.
self assert: expression right isBinaryOperation.
self assert: expression right operator equals: '*'.
self assert: expression right left value equals: '2'.
self assert: expression right right value equals: '1'.
]
{ #category : #'tests-assignment' }
CASTParserTests >> testParseMultiplyingAssignment [
| assignment |
assignment := self parseExpression: 'a *= 1'.
self assert: assignment isExpression.
self assert: assignment lvalue name equals: 'a'.
self assert: assignment operator equals: '*='.
]
{ #category : #'tests-binary operators' }
CASTParserTests >> testParseNot [
| expression |
expression := self parseExpression: '!0'.
self assert: expression isExpression.
self assert: expression isUnaryOperation.
self assert: expression operator equals: '!'
]
{ #category : #'tests-numbers' }
CASTParserTests >> testParseOctalIntegerConstantConstant [
| unit firstStatement |
unit := CASTParser parse: 'int f(){
07;
}'.
firstStatement := unit declarations first statements first.
self assert: firstStatement isExpression.
self assert: firstStatement isConstant.
self assert: firstStatement value equals: '07'.
]
{ #category : #'tests-basic expressions' }
CASTParserTests >> testParseParenthesizedExpression [
| expression |
expression := self parseExpression: '(1)'.
self assert: expression isExpression.
]
{ #category : #'tests-declarators' }
CASTParserTests >> testParsePointerDeclarator [
| declaration declarator |
declaration := self parseDeclaration: 'int *a'.
self assert: (declaration specifiers includes: 'int').
self assert: declaration declarators size equals: 1.
declarator := declaration declarators first.
self assert: declarator isPointerDeclarator.
self assert: declarator declarator name equals: 'a'.
]
{ #category : #'tests-binary operators' }
CASTParserTests >> testParsePostIncrement [
| expression |
expression := self parseExpression: 'a++'.
self assert: expression isIncrement.
]
{ #category : #'tests-control flow' }
CASTParserTests >> testParseReturnWithExpression [
| statement |
statement := self parseStatement: 'return a;'.
self assert: statement isReturn.
self assert: statement expression notNil
]
{ #category : #'tests-control flow' }
CASTParserTests >> testParseReturnWithoutExpression [
| statement |
statement := self parseStatement: 'return;'.
self assert: statement isReturn.
self assert: statement expression isNil
]
{ #category : #'tests-declarators' }
CASTParserTests >> testParseSequenceOfDeclarators [
| declaration declarator |
declaration := self parseDeclaration: 'int a=1, b=2'.
self assert: (declaration specifiers includes: 'int').
self assert: declaration declarators size equals: 2.
declarator := declaration declarators first.
self assert: declarator isInitializerDeclarator.
self assert: declarator initializer isConstant.
self assert: declarator declarator name equals: 'a'.
declarator := declaration declarators second.
self assert: declarator isInitializerDeclarator.
self assert: declarator initializer isConstant.
self assert: declarator declarator name equals: 'b'.
]
{ #category : #'tests-declarators' }
CASTParserTests >> testParseSimpleArrayDeclaration [
| declaration declarator |
declaration := self parseDeclaration: 'int a[]'.
self assert: (declaration specifiers includes: 'int').
self assert: declaration declarators size equals: 1.
declarator := declaration declarators first.
self assert: declarator isArrayDeclarator.
self assert: declarator size equals: nil.
self assert: declarator declarator name equals: 'a'.
]
{ #category : #'tests-control flow' }
CASTParserTests >> testParseSizeofExpression [
| statement |
statement := self parseExpression: 'sizeof *a'.
self assert: statement isSizeof.
self assert: statement child isUnaryOperation.
self assert: statement child operator equals: '*'.
self assert: statement child expression isIdentifier.
]
{ #category : #'tests-control flow' }
CASTParserTests >> testParseSizeofTypeInt [
| statement |
statement := self parseExpression: 'sizeof(int)'.
self assert: statement isSizeof.
self assert: statement child isTypeNode.
self assert: statement child specifiers first value equals: 'int'
]
{ #category : #'tests-declarators' }
CASTParserTests >> testParseStructDeclarator [
| declaration declarator |
declaration := (CASTParser parse: 'struct C { int member; } obj;') declarations first.
self assert: (declaration specifiers includes: 'int').
self assert: declaration declarators size equals: 1.
declarator := declaration declarators first.
self assert: declarator isFunctionDeclarator.
self assert: declarator declarator name equals: 'f'.
self assert: declarator parameters size equals: 1.
]
{ #category : #'tests-structures' }
CASTParserTests >> testParseStructureAndUnionAccess [
| expression |
expression := self parseExpression: 'structOrUnion.field'.
self assert: expression isExpression.
self assert: expression isMemberAccess.
self assert: expression object name equals: 'structOrUnion'.
self assert: expression member name equals: 'field'.
]
{ #category : #'tests-structures' }
CASTParserTests >> testParseStructurePointerAccess [
| expression |
expression := self parseExpression: 'strrr->field'.
self assert: expression isExpression.
self assert: expression isStructPointerAccess.
self assert: expression structurePointer name equals: 'strrr'.
self assert: expression member name equals: 'field'.
]
{ #category : #'tests-control flow' }
CASTParserTests >> testParseSwitch [
| statement case0 case1 |
statement := self parseStatement: 'switch (a){ case 0: case 1: call(); break;}'.
self assert: statement isSwitch.
self assert: statement if isIdentifier.
self assert: statement if name equals: 'a'.
self assert: statement statement isCompoundStatement.
case0 := statement statement statements first.
self assert: case0 isLabelledStatement.
self assert: case0 case value equals: '0'.
"Sequential cases are nested"
case1 := case0 statement.
self assert: case1 isLabelledStatement.
self assert: case1 case value equals: '1'.
self assert: case1 statement isFunctionCall.
self assert: statement statement statements second isBreakStatement.
]
{ #category : #'tests-control flow' }
CASTParserTests >> testParseSwitchWithDefaultCase [
| statement case0 |
statement := self parseStatement: 'switch (a){ case 0: call(); default: break;}'.
self assert: statement isSwitch.
self assert: statement if isIdentifier.
self assert: statement if name equals: 'a'.
self assert: statement statement isCompoundStatement.
case0 := statement statement statements first.
self assert: case0 isLabelledStatement.
self assert: case0 case value equals: '0'.
self assert: statement statement statements second case value equals: 'default'.
]
{ #category : #'tests-control flow' }
CASTParserTests >> testParseTernary [
| statement |
statement := self parseStatement: '(a ? 0 : 1)'.
self assert: statement isTernary.
self assert: statement then isConstant.
self assert: statement else isConstant
]
{ #category : #'tests-declarators' }
CASTParserTests >> testParseUnionDeclarator [
| declaration declarator |
declaration := (CASTParser parse: 'union C { int member; } obj;') declarations first.
self assert: (declaration specifiers includes: 'int').
self assert: declaration declarators size equals: 1.
declarator := declaration declarators first.
self assert: declarator isFunctionDeclarator.
self assert: declarator declarator name equals: 'f'.
self assert: declarator parameters size equals: 1.
]
{ #category : #'tests-numbers' }
CASTParserTests >> testParseUnsignedIntegerConstantConstant [
| unit firstStatement |
unit := CASTParser parse: 'int f(){
7U;
}'.
firstStatement := unit declarations first statements first.
self assert: firstStatement isExpression.
self assert: firstStatement isConstant.
self assert: firstStatement value equals: '7U'.
]
{ #category : #'tests-numbers' }
CASTParserTests >> testParseUnsignedIntegerConstantConstant2 [
| unit firstStatement |
unit := CASTParser parse: 'int f(){
7u;
}'.
firstStatement := unit declarations first statements first.
self assert: firstStatement isExpression.
self assert: firstStatement isConstant.
self assert: firstStatement value equals: '7u'.
]
{ #category : #'tests-control flow' }
CASTParserTests >> testParseWhile [
| statement |
statement := self parseStatement: 'while (a) { }'.
self assert: statement isWhile
]
{ #category : #'tests-control flow' }
CASTParserTests >> testSwitchStatement [
| statement |
statement := self parseStatement: 'switch(a){
case 48: break;
case 15: break;
default: break;
}'.
]