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RedPanda-CPP
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This commit is contained in:
Roy Qu 2021-12-06 09:02:39 +08:00
parent 0360d704ed
commit b0f608a360
2 changed files with 203 additions and 95 deletions
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212
RedPandaIDE/parser/cppparser.cpp
View File

@ -407,7 +407,7 @@ PStatement CppParser::findStatementOf(const QString &fileName,
return statement;
}
PStatement CppParser::findStatement(
PStatement CppParser::evalExpression(
const QString &fileName,
const QStringList &phraseExpression,
const PStatement &currentScope)
@ -416,7 +416,12 @@ PStatement CppParser::findStatement(
if (mParsing)
return PStatement();
int pos = 0;
return doFindStatement(fileName,phraseExpression,pos,currentScope,true);
return doEvalExpression(fileName,
phraseExpression,
pos,
currentScope,
PStatement(),
true);
}
PStatement CppParser::findStatementOf(const QString &fileName, const QString &phrase, const PStatement& currentClass, bool force)
@ -3360,44 +3365,56 @@ PStatement CppParser::findStatementInNamespace(const QString &name, const QStrin
return PStatement();
}
PStatement CppParser::doParseSubExpression3(const QString &fileName,
const QStringList &phraseExpression,
int &pos,
const PStatement &currentScope,
bool freeScoped)
PStatement CppParser::doEvalCCast(const QString &fileName,
const QStringList &phraseExpression,
int &pos,
const PStatement& scope,
const PStatement& previousResult,
bool freeScoped)
{
if (pos>=phraseExpression.length())
return PStatement();
if (phraseExpression[pos]=="*") {
pos++; //skip "*"
PStatement statement = doParseSubExpression3(fileName,
PStatement statement = doEvalCCast(fileName,
phraseExpression,
pos,
currentScope,
scope,
previousResult,
freeScoped);
//todo:
return statement;
} else if (phraseExpression[pos]=="&") {
pos++; //skip "&"
PStatement statement = doParseSubExpression3(fileName,
PStatement statement = doEvalCCast(fileName,
phraseExpression,
pos,
currentScope,
scope,
previousResult,
freeScoped);
//todo:
return statement;
} else if (phraseExpression[pos]=="++"
|| phraseExpression[pos]=="--") {
pos++; //skip "++" or "--"
return doParseSubExpression3(fileName,
phraseExpression,
pos,
currentScope,
freeScoped);
return doEvalCCast(
fileName,
phraseExpression,
pos,
scope,
previousResult,
freeScoped);
} else if (phraseExpression[pos]=="(") {
//parse
int startPos = pos;
pos++;
PStatement typeStatement = doFindStatement(fileName,phraseExpression,pos,currentScope,freeScoped);
PStatement typeStatement = doEvalExpression(
fileName,
phraseExpression,
pos,
scope,
PStatement(),
true);
if (pos >= phraseExpression.length() || phraseExpression[pos]!=")") {
return PStatement();
} else if (typeStatement &&
@ -3405,59 +3422,99 @@ PStatement CppParser::doParseSubExpression3(const QString &fileName,
|| typeStatement->kind == StatementKind::skEnumType
|| typeStatement->kind == StatementKind::skEnumClassType
|| typeStatement->kind == StatementKind::skTypedef)) {
PStatement statement = doParseSubExpression3(fileName,
//it's a type cast
PStatement statement = doEvalCCast(fileName,
phraseExpression,
pos,
currentScope,
scope,
previousResult,
freeScoped);
return typeStatement;
} else
return PStatement();
} else //it's not a type cast
return doEvalMemberAccess(
fileName,
phraseExpression,
startPos, //we must reparse it
scope,
previousResult,
freeScoped);
}
return doParseSubExpression2(fileName,
phraseExpression,
pos,
currentScope,
freeScoped);
return doEvalMemberAccess(
fileName,
phraseExpression,
pos,
scope,
previousResult,
freeScoped);
}
PStatement CppParser::doParseSubExpression2(const QString &fileName,
const QStringList &phraseExpression,
int &pos, const PStatement &currentScope,
bool freeScoped)
PStatement CppParser::doEvalMemberAccess(const QString &fileName,
const QStringList &phraseExpression,
int &pos,
const PStatement& scope,
const PStatement& previousResult,
bool freeScoped)
{
if (pos>=phraseExpression.length())
return PStatement();
PStatement current = doParseSubExpression1(fileName,
phraseExpression,
pos,
currentScope,
freeScoped);
PStatement current = doEvalScopeResolution(
fileName,
phraseExpression,
pos,
scope,
previousResult,
freeScoped);
bool isFreeScoped = freeScoped;
if (!current)
return PStatement();
pos++;
while (pos<phraseExpression.length()) {
if (!current)
break;
if (phraseExpression[pos]=="++" || phraseExpression[pos]=="--") {
pos++;
} else if (phraseExpression[pos] == "(") {
//skip to ")"
if (current->kind == StatementKind::skClass) {
if (current->kind == StatementKind::skClass
|| current->kind == StatementKind::skEnumClassType
|| current->kind == StatementKind::skEnumClassType
) {
pos++; // skip "("
PStatement s = doEvalExpression(
fileName,
phraseExpression,
pos,
scope,
PStatement(),
true);
//type cast
PStatement statement = std::make_shared<Statement>();
statement->kind = StatementKind::skVariable;
} else if (current->kind == StatementKind::skFunction) {
//function call
current = findTypeDefinitionOf(
fileName,
current->type,
current->parentScope.lock());
}
//skip to ")"
doSkipInExpression("(",")");
return statement;
} else if (phraseExpression[pos] == "[") {
//skip to "]"
doSkipInExpression("[","]");
return
} else if (phraseExpression[pos] == ".") {
pos++;
current = doParseSubExpression1(fileName,
current = doEvalScopeResolution(fileName,
phraseExpression,
pos,
current,
false);
} else if (phraseExpression[pos] == "->") {
pos++;
current = doParseSubExpression1(fileName,
current = doEvalScopeResolution(fileName,
phraseExpression,
pos,
current,
@ -3468,15 +3525,16 @@ PStatement CppParser::doParseSubExpression2(const QString &fileName,
}
PStatement CppParser::doParseSubExpression1(const QString &fileName,
const QStringList &phraseExpression,
int &pos,
const PStatement &currentScope,
bool freeScoped)
PStatement CppParser::doEvalScopeResolution(const QString &fileName,
const QStringList &phraseExpression,
int &pos,
const PStatement& scope,
const PStatement& previousResult,
bool freeScoped)
{
if (pos>=phraseExpression.length())
return PStatement();
PStatement current = doParseSubExpression0(fileName,
PStatement current = doParseSubExpressionForType0(fileName,
phraseExpression,
pos,
currentScope,
@ -3500,16 +3558,18 @@ PStatement CppParser::doParseSubExpression1(const QString &fileName,
return current;
}
PStatement CppParser::doParseSubExpression0(const QString &fileName,
const QStringList &phraseExpression,
int &pos, const PStatement &currentScope,
bool freeScoped)
PStatement CppParser::doParseSubExpressionForType0(const QString &fileName,
const QStringList &phraseExpression,
int &pos,
const PStatement& scope,
const PStatement& previousResult,
bool freeScoped)
{
if (pos>=phraseExpression.length())
return PStatement();
if (phraseExpression[pos]=="(") {
pos++;
PStatement statement = doFindStatement(fileName,phraseExpression,pos,currentScope,freeScoped);
PStatement statement = doEvalExpression(fileName,phraseExpression,pos,currentScope,freeScoped);
if (pos >= phraseExpression.length() || phraseExpression[pos]!=")")
return PStatement();
else
@ -3526,29 +3586,59 @@ PStatement CppParser::doParseSubExpression0(const QString &fileName,
}
PStatement CppParser::doFindStatement(const QString &fileName,
const QStringList &phraseExpression,
int& pos,
const PStatement &currentScope,
bool freeScoped)
PStatement CppParser::doEvalExpression(const QString& fileName,
const QStringList& phraseExpression,
int &pos,
const PStatement& scope,
const PStatement& previousResult,
bool freeScoped)
{
//dummy function to easy later upgrades
return doEvalPointerToMembers(fileName,
phraseExpression,
pos,
scope,
previousResult,
freeScoped);
}
PStatement CppParser::doEvalPointerToMembers(const QString &fileName, const QStringList &phraseExpression, int &pos, const PStatement &scope, const PStatement &previousResult, bool freeScoped)
{
if (pos>=phraseExpression.length())
return PStatement();
//find the start scope statement
PStatement currentStatement = doParseSubExpression3(fileName,phraseExpression,pos,currentScope, freeScoped);
PStatement currentStatement = doEvalCCast(
fileName,
phraseExpression,
pos,
scope,
previousResult,
freeScoped);
while (pos < phraseExpression.length() ) {
if (!currentStatement)
break;
if (currentStatement &&
(currentStatement->kind == StatementKind::skVariable)
&& (phraseExpression[pos]==".*"
|| phraseExpression[pos]=="->*")) {
pos++;
PStatement currentStatementScope = findTypeDefinitionOf(
PStatement statement =
doEvalCCast(
fileName,
currentStatement->type,
currentStatement->parentScope.lock());
currentStatement = doParseSubExpression3(fileName,phraseExpression,pos,currentStatementScope,false);
phraseExpression,
pos,
scope,
currentStatement,
false);
if (statement) {
currentStatement = std::make_shared<Statement>();
*currentStatement = * statement;
currentStatement->type = currentStatement->type+" *";
} else {
currentStatement = PStatement();
}
} else {
break;
currentStatement=PStatement();
}
}
return currentStatement;

86
RedPandaIDE/parser/cppparser.h
View File

@ -49,8 +49,15 @@ public:
const QString& phrase,
const PStatement& currentClass,
bool force = false);
PStatement findStatement(const QString& fileName,
const QStringList& phraseExpression,
/**
* @brief evaluate the expression
* @param fileName
* @param expression
* @param currentScope
* @return the statement of the evaluation result
*/
PStatement evalExpression(const QString& fileName,
const QStringList& expression,
const PStatement& currentScope);
//{Find statement starting from startScope}
PStatement findStatementStartingFrom(const QString& fileName,
@ -202,48 +209,59 @@ private:
const QString& name,
const QString& namespaceName);
PStatement doParseSubExpression3(
const QString& fileName,
const QStringList& phraseExpression,
int &pos,
const PStatement& currentScope,
bool freeScoped);
PStatement doParseSubExpression2(
const QString& fileName,
const QStringList& phraseExpression,
int &pos,
const PStatement& currentScope,
bool freeScoped);
PStatement doParseSubExpression1(
const QString& fileName,
const QStringList& phraseExpression,
int &pos,
const PStatement& currentScope,
bool freeScoped);
PStatement doParseSubExpression0(
const QString& fileName,
const QStringList& phraseExpression,
int &pos,
const PStatement& currentScope,
bool freeScoped);
/**
* @brief find the expression's corresponding statement in the specified file and scope
* If the statement is free scoped, if it's not member of the currentScope,
* we'll search it in the currentScope's outer scope recursively
* @brief evaluate the expression (starting from pos) in the scope
* @param fileName
* @param phraseExpression
* @param pos
* @param currentScope
* @param freeScope if the statement is free scoped.
* @param scope
* @param previousResult the result of evalution for expression from 0 to pos-1
* @param freeScoped if the expression left is
* @return
*/
PStatement doFindStatement(const QString& fileName,
PStatement doEvalExpression(const QString& fileName,
const QStringList& phraseExpression,
int &pos,
const PStatement& currentScope,
const PStatement& scope,
const PStatement& previousResult,
bool freeScoped);
PStatement doEvalPointerToMembers(
const QString& fileName,
const QStringList& phraseExpression,
int &pos,
const PStatement& scope,
const PStatement& previousResult,
bool freeScoped);
PStatement doEvalCCast(
const QString& fileName,
const QStringList& phraseExpression,
int &pos,
const PStatement& scope,
const PStatement& previousResult,
bool freeScoped);
PStatement doEvalMemberAccess(
const QString& fileName,
const QStringList& phraseExpression,
int &pos,
const PStatement& scope,
const PStatement& previousResult,
bool freeScoped);
PStatement doEvalScopeResolution(
const QString& fileName,
const QStringList& phraseExpression,
int &pos,
const PStatement& scope,
const PStatement& previousResult,
bool freeScoped);
PStatement doParseSubExpressionForType0(
const QString& fileName,
const QStringList& phraseExpression,
int &pos,
const PStatement& scope,
const PStatement& previousResult,
bool freeScoped);
int getBracketEnd(const QString& s, int startAt);
StatementClassScope getClassScope(int index);
int getCurrentBlockBeginSkip();