Examples with GoVisitor com.goide.psi.GoVisitor used on opensource projects

Example 1 with GoVisitor

use of com.goide.psi.GoVisitor in project go-lang-idea-plugin by go-lang-plugin-org.

the class GoAssignmentToReceiverInspection method buildGoVisitor.

@NotNull
@Override
protected GoVisitor buildGoVisitor(@NotNull ProblemsHolder holder, @NotNull LocalInspectionToolSession session) {
    return new GoVisitor() {

        @Override
        public void visitReferenceExpression(@NotNull GoReferenceExpression o) {
            super.visitReferenceExpression(o);
            if (o.getReadWriteAccess() == ReadWriteAccessDetector.Access.Write) {
                PsiElement resolve = o.resolve();
                if (resolve instanceof GoReceiver) {
                    String message = "Assignment to method receiver doesn't propagate to other calls";
                    if (((GoReceiver) resolve).getType() instanceof GoPointerType) {
                        if (o.getParent() instanceof GoUnaryExpr) {
                            GoUnaryExpr p = (GoUnaryExpr) o.getParent();
                            if (p.getMul() != null) {
                                // pointer dereference
                                return;
                            }
                        }
                        message = "Assignment to method receiver propagates only to callees but not to callers";
                    }
                    holder.registerProblem(o, message, WEAK_WARNING);
                }
            }
        }
    };
}

Example 2 with GoVisitor

use of com.goide.psi.GoVisitor in project go-lang-idea-plugin by go-lang-plugin-org.

the class GoUnusedFunctionInspection method buildGoVisitor.

@NotNull
@Override
protected GoVisitor buildGoVisitor(@NotNull ProblemsHolder holder, @NotNull LocalInspectionToolSession session) {
    return new GoVisitor() {

        @Override
        public void visitFunctionDeclaration(@NotNull GoFunctionDeclaration o) {
            if (o.isBlank())
                return;
            GoFile file = o.getContainingFile();
            String name = o.getName();
            if (!canRun(name))
                return;
            if (GoConstants.MAIN.equals(file.getPackageName()) && GoConstants.MAIN.equals(name))
                return;
            if (GoConstants.INIT.equals(name))
                return;
            if (GoTestFinder.isTestFile(file) && GoTestFunctionType.fromName(name) != null)
                return;
            if (ReferencesSearch.search(o, o.getUseScope()).findFirst() == null) {
                PsiElement id = o.getIdentifier();
                TextRange range = TextRange.from(id.getStartOffsetInParent(), id.getTextLength());
                holder.registerProblem(o, "Unused function <code>#ref</code> #loc", ProblemHighlightType.LIKE_UNUSED_SYMBOL, range, new GoDeleteQuickFix("Delete function", GoFunctionDeclaration.class), new GoRenameToBlankQuickFix(o));
            }
        }
    };
}

Example 3 with GoVisitor

use of com.goide.psi.GoVisitor in project go-lang-idea-plugin by go-lang-plugin-org.

the class GoUsedAsValueInCondition method buildGoVisitor.

@NotNull
@Override
protected GoVisitor buildGoVisitor(@NotNull ProblemsHolder holder, @NotNull LocalInspectionToolSession session) {
    return new GoVisitor() {

        @Override
        public void visitAssignmentStatement(@NotNull GoAssignmentStatement o) {
            if (o.getParent() != null && o.getParent() instanceof GoIfStatement && ((GoIfStatement) o.getParent()).getExpression() == null) {
                String left = GoPsiImplUtil.joinPsiElementText(o.getLeftHandExprList().getExpressionList());
                String right = GoPsiImplUtil.joinPsiElementText(o.getExpressionList());
                holder.registerProblem(o, left + " = " + right + " used as value", GENERIC_ERROR_OR_WARNING, new GoAssignmentToComparisonQuickFix());
            }
        }

        @Override
        public void visitShortVarDeclaration(@NotNull GoShortVarDeclaration o) {
            PsiElement parent = o.getParent();
            if (parent != null) {
                PsiElement gradParent = parent.getParent();
                if (gradParent instanceof GoIfStatement && ((GoIfStatement) gradParent).getExpression() == null) {
                    String left = GoPsiImplUtil.joinPsiElementText(o.getVarDefinitionList());
                    String right = GoPsiImplUtil.joinPsiElementText(o.getRightExpressionsList());
                    holder.registerProblem(o, left + " := " + right + " used as value", GENERIC_ERROR_OR_WARNING, new GoAssignmentToComparisonQuickFix());
                }
            }
        }
    };
}

Example 4 with GoVisitor

use of com.goide.psi.GoVisitor in project go-lang-idea-plugin by go-lang-plugin-org.

the class GoReceiverNamesInspection method buildGoVisitor.

@NotNull
@Override
protected GoVisitor buildGoVisitor(@NotNull ProblemsHolder holder, @NotNull LocalInspectionToolSession session) {
    return new GoVisitor() {

        @Override
        public void visitReceiver(@NotNull GoReceiver o) {
            if (genericNamesSet.contains(o.getName())) {
                PsiElement identifier = o.getIdentifier();
                if (identifier == null)
                    return;
                holder.registerProblem(identifier, "Receiver has generic name", new GoRenameQuickFix(o));
            }
        }
    };
}

Example 5 with GoVisitor

use of com.goide.psi.GoVisitor in project go-lang-idea-plugin by go-lang-plugin-org.

the class GoUnusedConstInspection method buildGoVisitor.

@NotNull
@Override
protected GoVisitor buildGoVisitor(@NotNull ProblemsHolder holder, @NotNull LocalInspectionToolSession session) {
    return new GoVisitor() {

        @Override
        public void visitConstDefinition(@NotNull GoConstDefinition o) {
            if (o.isBlank())
                return;
            if (ReferencesSearch.search(o, o.getUseScope()).findFirst() == null) {
                String constName = o.getName();
                holder.registerProblem(o, "Unused constant <code>#ref</code> #loc", ProblemHighlightType.LIKE_UNUSED_SYMBOL, new GoDeleteConstDefinitionQuickFix(constName));
            }
        }
    };
}