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MG: expressions types are now calculated

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git-svn-id: trunk@646 -
This commit is contained in:
lazarus 2002-01-29 20:55:55 +00:00
parent ce0f3037ec
commit 74e824eddf
1 changed files with 8 additions and 9 deletions
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17
components/codetools/finddeclarationtool.pas
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@ -2307,11 +2307,13 @@ var
procedure ExecuteStack; procedure ExecuteStack;
var NewOperand: TExpressionType; var NewOperand: TExpressionType;
LastPos: integer;
begin begin
if StackPtr<=0 then begin if StackPtr<=0 then begin
// only one element -> nothing to do // only one element -> nothing to do
exit; exit;
end; end;
LastPos:=CurPos.StartPos;
while (StackPtr>0) while (StackPtr>0)
and (ExprStack[StackPtr].OperatorLvl>ExprStack[StackPtr-1].OperatorLvl) do and (ExprStack[StackPtr].OperatorLvl>ExprStack[StackPtr-1].OperatorLvl) do
begin begin
@ -2325,6 +2327,7 @@ var
ExprStack[StackPtr]:=ExprStack[StackPtr+1]; ExprStack[StackPtr]:=ExprStack[StackPtr+1];
ExprStack[StackPtr].Operand:=NewOperand; ExprStack[StackPtr].Operand:=NewOperand;
end; end;
MoveCursorToCleanPos(LastPos);
end; end;
begin begin
@ -2334,8 +2337,8 @@ writeln('[TFindDeclarationTool.FindExpressionResultType] ',
{$ENDIF} {$ENDIF}
Result:=CleanExpressionType; Result:=CleanExpressionType;
// read the expression from left to right and calculate the type // read the expression from left to right and calculate the type
MoveCursorToCleanPos(StartPos);
StackPtr:=-1; StackPtr:=-1;
MoveCursorToCleanPos(StartPos);
repeat repeat
// read operand // read operand
CurExprType:=ReadOperandTypeAtCursor(Params); CurExprType:=ReadOperandTypeAtCursor(Params);
@ -2382,11 +2385,8 @@ writeln('[TFindDeclarationTool.FindExpressionResultType] ',
// execute stack if possible // execute stack if possible
ExecuteStack; ExecuteStack;
until false; until false;
ExecuteStack;
// This is a quick hack: Just return the type of the last variable. Result:=ExprStack[0].Operand;
MoveCursorToCleanPos(EndPos);
Result.Desc:=xtContext;
Result.Context:=FindContextNodeAtCursor(Params);
end; end;
function TFindDeclarationTool.FindIdentifierInUsesSection( function TFindDeclarationTool.FindIdentifierInUsesSection(
@ -2829,7 +2829,6 @@ writeln('[TFindDeclarationTool.ConvertNodeToExpressionType] B',
// ToDo: ppu, ppw, dcu files // ToDo: ppu, ppw, dcu files
MoveCursorToNodeStart(Node); MoveCursorToNodeStart(Node);
ReadNextAtom;
// ToDo: prevent circles // ToDo: prevent circles
@ -2898,6 +2897,7 @@ function TFindDeclarationTool.ReadOperandTypeAtCursor(
var EndPos, SubStartPos: integer; var EndPos, SubStartPos: integer;
begin begin
Result:=CleanExpressionType; Result:=CleanExpressionType;
if CurPos.StartPos=CurPos.EndPos then ReadNextAtom;
// read unary operators which have no effect on the type: +, -, not // read unary operators which have no effect on the type: +, -, not
while AtomIsChar('+') or AtomIsChar('-') or UpAtomIs('NOT') do while AtomIsChar('+') or AtomIsChar('-') or UpAtomIs('NOT') do
ReadNextAtom; ReadNextAtom;
@ -3379,7 +3379,6 @@ writeln('[TFindDeclarationTool.IsCompatible] FindContext.Node.Desc=ctnSetType',
// ToDo: ppu, ppw, dcu // ToDo: ppu, ppw, dcu
FindContext.Tool.MoveCursorToNodeStart(FindContext.Node.FirstChild); FindContext.Tool.MoveCursorToNodeStart(FindContext.Node.FirstChild);
ReadNextAtom;
NodeExprType:=ReadOperandTypeAtCursor(Params); NodeExprType:=ReadOperandTypeAtCursor(Params);
ExpressionType.Desc:=ExpressionType.SubDesc; ExpressionType.Desc:=ExpressionType.SubDesc;
Result:=IsCompatible(NodeExprType,ExpressionType,Params); Result:=IsCompatible(NodeExprType,ExpressionType,Params);
@ -3452,7 +3451,7 @@ writeln('[TFindDeclarationTool.CreateParamExprList] ',
if AtomIsChar(BracketClose) then break; if AtomIsChar(BracketClose) then break;
if not AtomIsChar(',') then if not AtomIsChar(',') then
RaiseException(BracketClose+' expected, but '+GetAtom+' found'); RaiseException(BracketClose+' expected, but '+GetAtom+' found');
ReadNextAtom; CurPos.StartPos:=CurPos.EndPos;
end; end;
end; end;
end; end;