[vala/staging: 2/9] Collect error_types on demand to allow transformations
- From: Rico Tzschichholz <ricotz src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [vala/staging: 2/9] Collect error_types on demand to allow transformations
- Date: Tue, 23 Oct 2018 16:50:01 +0000 (UTC)
commit 6395a2efe8f166fe8b2595fc2ba08dc4bcc69216
Author: Luca Bruno <lucabru src gnome org>
Date: Sun Aug 7 12:44:41 2011 +0200
Collect error_types on demand to allow transformations
codegen/valaccodedelegatemodule.vala | 6 +--
codegen/valaccodemethodmodule.vala | 4 +-
codegen/valagasyncmodule.vala | 4 +-
codegen/valagdbusclientmodule.vala | 6 ++-
codegen/valagdbusservermodule.vala | 4 +-
codegen/valagerrormodule.vala | 10 ++---
vala/valaassignment.vala | 8 ++--
vala/valabinaryexpression.vala | 5 +++
vala/valablock.vala | 12 +++---
vala/valacallabletype.vala | 3 +-
vala/valacastexpression.vala | 4 ++
vala/valacodenode.vala | 46 ++++-------------------
vala/valacodewriter.vala | 8 +++-
vala/valaconditionalexpression.vala | 6 +++
vala/valaconstructor.vala | 4 +-
vala/valacreationmethod.vala | 24 ++++++++----
vala/valadeclarationstatement.vala | 21 +++++------
vala/valadelegate.vala | 67 ++++++++++++++++++++++++++--------
vala/valadelegatetype.vala | 8 +++-
vala/valaelementaccess.vala | 7 ++++
vala/valaexpressionstatement.vala | 6 ++-
vala/valaflowanalyzer.vala | 4 +-
vala/valaforeachstatement.vala | 11 ++++--
vala/valagirparser.vala | 31 +++++++++++-----
vala/valaifstatement.vala | 15 ++++----
vala/valalambdaexpression.vala | 4 +-
vala/valaloop.vala | 6 ++-
vala/valamemberaccess.vala | 6 +++
vala/valamethod.vala | 63 +++++++++++++++++++++++++++-----
vala/valamethodcall.vala | 63 ++++++++++++--------------------
vala/valaobjectcreationexpression.vala | 24 ++++++------
vala/valaparser.vala | 2 +-
vala/valapointerindirection.vala | 4 ++
vala/valapropertyaccessor.vala | 4 +-
vala/valareturnstatement.vala | 8 +++-
vala/valastatementlist.vala | 6 +++
vala/valaswitchsection.vala | 12 +++---
vala/valaswitchstatement.vala | 7 +++-
vala/valathrowstatement.vala | 14 ++++---
vala/valatrystatement.vala | 49 +++++++++++++------------
vala/valaunaryexpression.vala | 4 ++
valadoc/symbolresolver.vala | 10 +++--
vapigen/valagidlparser.vala | 6 ++-
43 files changed, 381 insertions(+), 235 deletions(-)
---
diff --git a/codegen/valaccodedelegatemodule.vala b/codegen/valaccodedelegatemodule.vala
index 042e2be05..478302969 100644
--- a/codegen/valaccodedelegatemodule.vala
+++ b/codegen/valaccodedelegatemodule.vala
@@ -115,7 +115,7 @@ public class Vala.CCodeDelegateModule : CCodeArrayModule {
var cparam = new CCodeParameter ("user_data", "gpointer");
cfundecl.add_parameter (cparam);
}
- if (d.get_error_types ().size > 0) {
+ if (d.tree_can_fail) {
var cparam = new CCodeParameter ("error", "GError**");
cfundecl.add_parameter (cparam);
}
@@ -263,7 +263,7 @@ public class Vala.CCodeDelegateModule : CCodeArrayModule {
cparam_map.set (get_param_pos (-3), cparam);
}
- if (m.get_error_types ().size > 0) {
+ if (m.tree_can_fail) {
var cparam = new CCodeParameter ("error", "GError**");
cparam_map.set (get_param_pos (-1), cparam);
}
@@ -387,7 +387,7 @@ public class Vala.CCodeDelegateModule : CCodeArrayModule {
carg_map.set (get_param_pos (-3), new CCodeIdentifier ("result"));
}
- if (m.get_error_types ().size > 0) {
+ if (m.tree_can_fail) {
carg_map.set (get_param_pos (-1), new CCodeIdentifier ("error"));
}
diff --git a/codegen/valaccodemethodmodule.vala b/codegen/valaccodemethodmodule.vala
index b536e749f..cdedbee67 100644
--- a/codegen/valaccodemethodmodule.vala
+++ b/codegen/valaccodemethodmodule.vala
@@ -110,7 +110,9 @@ public abstract class Vala.CCodeMethodModule : CCodeStructModule {
}
if (m.has_error_type_parameter ()) {
- foreach (DataType error_type in m.get_error_types ()) {
+ var error_types = new ArrayList<DataType> ();
+ m.get_error_types (error_types);
+ foreach (DataType error_type in error_types) {
generate_type_declaration (error_type, decl_space);
}
diff --git a/codegen/valagasyncmodule.vala b/codegen/valagasyncmodule.vala
index f234afdb4..89da47c40 100644
--- a/codegen/valagasyncmodule.vala
+++ b/codegen/valagasyncmodule.vala
@@ -615,7 +615,7 @@ public class Vala.GAsyncModule : GtkModule {
var ccall = new CCodeFunctionCall (new CCodeIdentifier ("g_task_propagate_pointer"));
ccall.add_argument (async_result_cast);
- if (m.get_error_types ().size > 0) {
+ if (m.tree_can_fail) {
ccall.add_argument (new CCodeIdentifier ("error"));
} else {
ccall.add_argument (new CCodeConstant ("NULL"));
@@ -633,7 +633,7 @@ public class Vala.GAsyncModule : GtkModule {
}
// If a task is cancelled, g_task_propagate_pointer returns NULL
- if (m.get_error_types ().size > 0 || has_cancellable) {
+ if (m.tree_can_fail || has_cancellable) {
var is_null = new CCodeBinaryExpression (CCodeBinaryOperator.EQUALITY, new
CCodeConstant ("NULL"), data_var);
ccode.open_if (is_null);
diff --git a/codegen/valagdbusclientmodule.vala b/codegen/valagdbusclientmodule.vala
index 32a45de21..91bdce363 100644
--- a/codegen/valagdbusclientmodule.vala
+++ b/codegen/valagdbusclientmodule.vala
@@ -566,7 +566,7 @@ public class Vala.GDBusClientModule : GDBusModule {
ccode.add_declaration ("GUnixFDList*", new CCodeVariableDeclarator ("_fd_list"));
}
- bool has_error_argument = (m.get_error_types ().size > 0);
+ bool has_error_argument = m.tree_can_fail;
CCodeExpression error_argument;
if (has_error_argument) {
error_argument = new CCodeIdentifier ("error");
@@ -593,7 +593,9 @@ public class Vala.GDBusClientModule : GDBusModule {
}
// register errors
- foreach (var error_type in m.get_error_types ()) {
+ var error_types = new ArrayList<DataType> ();
+ m.get_error_types (error_types);
+ foreach (var error_type in error_types) {
var errtype = (ErrorType) error_type;
if (errtype.error_domain != null) {
ccode.add_expression (new CCodeIdentifier (get_ccode_upper_case_name
(errtype.error_domain)));
diff --git a/codegen/valagdbusservermodule.vala b/codegen/valagdbusservermodule.vala
index e1984e24f..6b2f31ab4 100644
--- a/codegen/valagdbusservermodule.vala
+++ b/codegen/valagdbusservermodule.vala
@@ -273,7 +273,7 @@ public class Vala.GDBusServerModule : GDBusClientModule {
}
if (!m.coroutine || ready) {
- if (m.get_error_types ().size > 0) {
+ if (m.tree_can_fail) {
ccall.add_argument (new CCodeUnaryExpression (CCodeUnaryOperator.ADDRESS_OF,
new CCodeIdentifier ("error")));
}
}
@@ -285,7 +285,7 @@ public class Vala.GDBusServerModule : GDBusClientModule {
ccode.add_assignment (new CCodeIdentifier ("result"), ccall);
}
- if (m.get_error_types ().size > 0) {
+ if (m.tree_can_fail) {
ccode.open_if (new CCodeIdentifier ("error"));
var return_error = new CCodeFunctionCall (new CCodeIdentifier
("g_dbus_method_invocation_return_gerror"));
diff --git a/codegen/valagerrormodule.vala b/codegen/valagerrormodule.vala
index ea8367fd3..a0cefb9d1 100644
--- a/codegen/valagerrormodule.vala
+++ b/codegen/valagerrormodule.vala
@@ -191,9 +191,7 @@ public class Vala.GErrorModule : CCodeDelegateModule {
}
var error_types = new ArrayList<DataType> ();
- foreach (DataType node_error_type in node.get_error_types ()) {
- error_types.add (node_error_type);
- }
+ node.get_error_types (error_types);
bool has_general_catch_clause = false;
@@ -258,11 +256,13 @@ public class Vala.GErrorModule : CCodeDelegateModule {
// should never happen with correct bindings
uncaught_error_statement (inner_error, true);
}
- } else if (current_method != null && current_method.get_error_types ().size > 0) {
+ } else if (current_method != null && current_method.tree_can_fail) {
// current method can fail, propagate error
CCodeBinaryExpression ccond = null;
- foreach (DataType error_type in current_method.get_error_types ()) {
+ var error_types = new ArrayList<DataType> ();
+ current_method.get_error_types (error_types);
+ foreach (DataType error_type in error_types) {
// If GLib.Error is allowed we propagate everything
if (error_type.equals (gerror_type)) {
ccond = null;
diff --git a/vala/valaassignment.vala b/vala/valaassignment.vala
index 98c9c77c1..440ac5edc 100644
--- a/vala/valaassignment.vala
+++ b/vala/valaassignment.vala
@@ -101,6 +101,11 @@ public class Vala.Assignment : Expression {
return left.is_accessible (sym) && right.is_accessible (sym);
}
+ public override void get_error_types (Collection<DataType> collection, SourceReference?
source_reference = null) {
+ left.get_error_types (collection, source_reference);
+ right.get_error_types (collection, source_reference);
+ }
+
public override bool check (CodeContext context) {
if (checked) {
return !error;
@@ -388,9 +393,6 @@ public class Vala.Assignment : Expression {
value_type = null;
}
- add_error_types (left.get_error_types ());
- add_error_types (right.get_error_types ());
-
return !error;
}
diff --git a/vala/valabinaryexpression.vala b/vala/valabinaryexpression.vala
index be62ed64d..1e24968aa 100644
--- a/vala/valabinaryexpression.vala
+++ b/vala/valabinaryexpression.vala
@@ -154,6 +154,11 @@ public class Vala.BinaryExpression : Expression {
return left.is_accessible (sym) && right.is_accessible (sym);
}
+ public override void get_error_types (Collection<DataType> collection, SourceReference?
source_reference = null) {
+ left.get_error_types (collection, source_reference);
+ right.get_error_types (collection, source_reference);
+ }
+
public override bool check (CodeContext context) {
if (checked) {
return !error;
diff --git a/vala/valablock.vala b/vala/valablock.vala
index cfe0e2498..7419b5b9d 100644
--- a/vala/valablock.vala
+++ b/vala/valablock.vala
@@ -170,17 +170,19 @@ public class Vala.Block : Symbol, Statement {
constant.active = false;
}
- // use get_statements () instead of statement_list to not miss errors within StatementList
objects
- foreach (Statement stmt in get_statements ()) {
- add_error_types (stmt.get_error_types ());
- }
-
context.analyzer.current_symbol = old_symbol;
context.analyzer.insert_block = old_insert_block;
return !error;
}
+ public override void get_error_types (Collection<DataType> collection, SourceReference?
source_reference = null) {
+ // use get_statements () instead of statement_list to not miss errors within StatementList
objects
+ foreach (Statement stmt in get_statements ()) {
+ stmt.get_error_types (collection, source_reference);
+ }
+ }
+
public override void emit (CodeGenerator codegen) {
codegen.visit_block (this);
}
diff --git a/vala/valacallabletype.vala b/vala/valacallabletype.vala
index 0642fa644..c604de8ec 100644
--- a/vala/valacallabletype.vala
+++ b/vala/valacallabletype.vala
@@ -90,7 +90,8 @@ public abstract class Vala.CallableType : DataType {
builder.append_c (')');
// Append error-types
- var error_types = get_error_types ();
+ var error_types = new ArrayList<DataType> ();
+ get_error_types (error_types);
if (error_types.size > 0) {
builder.append (" throws ");
diff --git a/vala/valacastexpression.vala b/vala/valacastexpression.vala
index 5c050be2a..18ed153b8 100644
--- a/vala/valacastexpression.vala
+++ b/vala/valacastexpression.vala
@@ -122,6 +122,10 @@ public class Vala.CastExpression : Expression {
}
}
+ public override void get_error_types (Collection<DataType> collection, SourceReference?
source_reference = null) {
+ inner.get_error_types (collection, source_reference);
+ }
+
public override bool check (CodeContext context) {
if (checked) {
return !error;
diff --git a/vala/valacodenode.vala b/vala/valacodenode.vala
index e8ab35725..216b5604f 100644
--- a/vala/valacodenode.vala
+++ b/vala/valacodenode.vala
@@ -62,51 +62,18 @@ public abstract class Vala.CodeNode {
* Specifies that this node or a child node may throw an exception.
*/
public bool tree_can_fail {
- get { return _error_types != null && _error_types.size > 0; }
+ get {
+ var error_types = new ArrayList<DataType> ();
+ get_error_types (error_types);
+ return error_types.size > 0;
+ }
}
- private List<DataType> _error_types;
- private static List<DataType> _empty_type_list;
private AttributeCache[] attributes_cache;
static int last_temp_nr = 0;
static int next_attribute_cache_index = 0;
- /**
- * Specifies the exceptions that can be thrown by this node or a child node
- */
- public List<DataType> get_error_types () {
- if (_error_types != null) {
- return _error_types;
- }
- if (_empty_type_list == null) {
- _empty_type_list = new ArrayList<DataType> ();
- }
- return _empty_type_list;
- }
-
- /**
- * Adds an error type to the exceptions that can be thrown by this node
- * or a child node
- */
- public void add_error_type (DataType error_type) {
- if (_error_types == null) {
- _error_types = new ArrayList<DataType> ();
- }
- _error_types.add (error_type);
- error_type.parent_node = this;
- }
-
- /**
- * Adds a collection of error types to the exceptions that can be thrown by this node
- * or a child node
- */
- public void add_error_types (List<DataType> error_types) {
- foreach (DataType error_type in error_types) {
- add_error_type (error_type);
- }
- }
-
/**
* Visits this code node with the specified CodeVisitor.
*
@@ -377,6 +344,9 @@ public abstract class Vala.CodeNode {
public virtual void get_used_variables (Collection<Variable> collection) {
}
+ public virtual void get_error_types (Collection<DataType> collection, SourceReference?
source_reference = null) {
+ }
+
public static string get_temp_name () {
return "." + (++last_temp_nr).to_string ();
}
diff --git a/vala/valacodewriter.vala b/vala/valacodewriter.vala
index a71a6a382..38fc217f3 100644
--- a/vala/valacodewriter.vala
+++ b/vala/valacodewriter.vala
@@ -706,7 +706,9 @@ public class Vala.CodeWriter : CodeVisitor {
write_params (cb.get_parameters ());
- write_error_domains (cb.get_error_types ());
+ var error_types = new ArrayList<DataType> ();
+ cb.get_error_types (error_types);
+ write_error_domains (error_types);
write_string (";");
@@ -794,7 +796,9 @@ public class Vala.CodeWriter : CodeVisitor {
write_params (m.get_parameters ());
- write_error_domains (m.get_error_types ());
+ var error_types = new ArrayList<DataType> ();
+ m.get_error_types (error_types);
+ write_error_domains (error_types);
write_code_block (m.body);
diff --git a/vala/valaconditionalexpression.vala b/vala/valaconditionalexpression.vala
index 98facaaed..27f7d8618 100644
--- a/vala/valaconditionalexpression.vala
+++ b/vala/valaconditionalexpression.vala
@@ -104,6 +104,12 @@ public class Vala.ConditionalExpression : Expression {
return condition.is_accessible (sym) && true_expression.is_accessible (sym) &&
false_expression.is_accessible (sym);
}
+ public override void get_error_types (Collection<DataType> collection, SourceReference?
source_reference = null) {
+ condition.get_error_types (collection, source_reference);
+ true_expression.get_error_types (collection, source_reference);
+ false_expression.get_error_types (collection, source_reference);
+ }
+
public override bool check (CodeContext context) {
if (checked) {
return !error;
diff --git a/vala/valaconstructor.vala b/vala/valaconstructor.vala
index d16fc13a4..ae8f19e8d 100644
--- a/vala/valaconstructor.vala
+++ b/vala/valaconstructor.vala
@@ -77,7 +77,9 @@ public class Vala.Constructor : Subroutine {
body.check (context);
}
- foreach (DataType body_error_type in body.get_error_types ()) {
+ var body_errors = new ArrayList<DataType> ();
+ body.get_error_types (body_errors);
+ foreach (DataType body_error_type in body_errors) {
if (!((ErrorType) body_error_type).dynamic_error) {
Report.warning (body_error_type.source_reference, "unhandled error
`%s'".printf (body_error_type.to_string()));
}
diff --git a/vala/valacreationmethod.vala b/vala/valacreationmethod.vala
index 198f031c1..ae8daab38 100644
--- a/vala/valacreationmethod.vala
+++ b/vala/valacreationmethod.vala
@@ -60,8 +60,10 @@ public class Vala.CreationMethod : Method {
param.accept (visitor);
}
- foreach (DataType error_type in get_error_types ()) {
- error_type.accept (visitor);
+ if (error_types != null) {
+ foreach (DataType error_type in error_types) {
+ error_type.accept (visitor);
+ }
}
foreach (Expression precondition in get_preconditions ()) {
@@ -109,8 +111,10 @@ public class Vala.CreationMethod : Method {
i++;
}
- foreach (DataType error_type in get_error_types ()) {
- error_type.check (context);
+ if (error_types != null) {
+ foreach (DataType error_type in error_types) {
+ error_type.check (context);
+ }
}
foreach (Expression precondition in get_preconditions ()) {
@@ -172,11 +176,15 @@ public class Vala.CreationMethod : Method {
// check that all errors that can be thrown in the method body are declared
if (body != null) {
- foreach (DataType body_error_type in body.get_error_types ()) {
+ var body_errors = new ArrayList<DataType> ();
+ body.get_error_types (body_errors);
+ foreach (DataType body_error_type in body_errors) {
bool can_propagate_error = false;
- foreach (DataType method_error_type in get_error_types ()) {
- if (body_error_type.compatible (method_error_type)) {
- can_propagate_error = true;
+ if (error_types != null) {
+ foreach (DataType method_error_type in error_types) {
+ if (body_error_type.compatible (method_error_type)) {
+ can_propagate_error = true;
+ }
}
}
if (!can_propagate_error && !((ErrorType) body_error_type).dynamic_error) {
diff --git a/vala/valadeclarationstatement.vala b/vala/valadeclarationstatement.vala
index f0a3d4161..ab652e906 100644
--- a/vala/valadeclarationstatement.vala
+++ b/vala/valadeclarationstatement.vala
@@ -62,6 +62,16 @@ public class Vala.DeclarationStatement : CodeNode, Statement {
declaration.accept (visitor);
}
+ public override void get_error_types (Collection<DataType> collection, SourceReference?
source_reference = null) {
+ if (source_reference == null) {
+ source_reference = this.source_reference;
+ }
+ var local = declaration as LocalVariable;
+ if (local != null && local.initializer != null) {
+ local.initializer.get_error_types (collection, source_reference);
+ }
+ }
+
public override bool check (CodeContext context) {
if (checked) {
return !error;
@@ -71,17 +81,6 @@ public class Vala.DeclarationStatement : CodeNode, Statement {
declaration.check (context);
- var local = declaration as LocalVariable;
- if (local != null && local.initializer != null) {
- foreach (DataType error_type in local.initializer.get_error_types ()) {
- // ensure we can trace back which expression may throw errors of this type
- var initializer_error_type = error_type.copy ();
- initializer_error_type.source_reference = local.initializer.source_reference;
-
- add_error_type (initializer_error_type);
- }
- }
-
return !error;
}
diff --git a/vala/valadelegate.vala b/vala/valadelegate.vala
index 258fe4d4e..16db6f1b8 100644
--- a/vala/valadelegate.vala
+++ b/vala/valadelegate.vala
@@ -68,6 +68,8 @@ public class Vala.Delegate : TypeSymbol, Callable {
private DataType _return_type;
private bool? _has_target;
+ private List<DataType> error_types;
+
/**
* Creates a new delegate.
*
@@ -185,21 +187,23 @@ public class Vala.Delegate : TypeSymbol, Callable {
return false;
}
- var error_types = get_error_types ();
- var method_error_types = m.get_error_types ();
+ var method_error_types = new ArrayList<DataType> ();
+ m.get_error_types (method_error_types);
// method must throw error if the delegate does
- if (error_types.size > 0 && method_error_types.size == 0) {
+ if (error_types != null && error_types.size > 0 && method_error_types.size == 0) {
return false;
}
// method may throw less but not more errors than the delegate
foreach (DataType method_error_type in method_error_types) {
bool match = false;
- foreach (DataType delegate_error_type in error_types) {
- if (method_error_type.compatible (delegate_error_type)) {
- match = true;
- break;
+ if (error_types != null) {
+ foreach (DataType delegate_error_type in error_types) {
+ if (method_error_type.compatible (delegate_error_type)) {
+ match = true;
+ break;
+ }
}
}
@@ -226,8 +230,10 @@ public class Vala.Delegate : TypeSymbol, Callable {
param.accept (visitor);
}
- foreach (DataType error_type in get_error_types ()) {
- error_type.accept (visitor);
+ if (error_types != null) {
+ foreach (DataType error_type in error_types) {
+ error_type.accept (visitor);
+ }
}
}
@@ -235,16 +241,43 @@ public class Vala.Delegate : TypeSymbol, Callable {
return false;
}
+ /**
+ * Adds an error type to the exceptions that can be
+ * thrown by this delegate.
+ */
+ public void add_error_type (DataType error_type) {
+ if (error_types == null) {
+ error_types = new ArrayList<DataType> ();
+ }
+ error_types.add (error_type);
+ error_type.parent_node = this;
+ }
+
+ public override void get_error_types (Collection<DataType> collection, SourceReference?
source_reference = null) {
+ if (error_types != null) {
+ foreach (var error_type in error_types) {
+ if (source_reference != null) {
+ var type = error_type.copy ();
+ type.source_reference = source_reference;
+ collection.add (type);
+ } else {
+ collection.add (error_type);
+ }
+ }
+ }
+ }
+
public override void replace_type (DataType old_type, DataType new_type) {
if (return_type == old_type) {
return_type = new_type;
return;
}
- var error_types = get_error_types ();
- for (int i = 0; i < error_types.size; i++) {
- if (error_types[i] == old_type) {
- error_types[i] = new_type;
- return;
+ if (error_types != null) {
+ for (int i = 0; i < error_types.size; i++) {
+ if (error_types[i] == old_type) {
+ error_types[i] = new_type;
+ return;
+ }
}
}
}
@@ -272,8 +305,10 @@ public class Vala.Delegate : TypeSymbol, Callable {
param.check (context);
}
- foreach (DataType error_type in get_error_types ()) {
- error_type.check (context);
+ if (error_types != null) {
+ foreach (DataType error_type in error_types) {
+ error_type.check (context);
+ }
}
context.analyzer.current_source_file = old_source_file;
diff --git a/vala/valadelegatetype.vala b/vala/valadelegatetype.vala
index 0f4edfdb3..4fbaca175 100644
--- a/vala/valadelegatetype.vala
+++ b/vala/valadelegatetype.vala
@@ -189,9 +189,13 @@ public class Vala.DelegateType : CallableType {
}
// target-delegate may throw less but not more errors than the delegate
- foreach (DataType error_type in get_error_types ()) {
+ var error_types = new ArrayList<DataType> ();
+ get_error_types (error_types);
+ foreach (DataType error_type in error_types) {
bool match = false;
- foreach (DataType delegate_error_type in dt_target.get_error_types ()) {
+ var delegate_error_types = new ArrayList<DataType> ();
+ dt_target.get_error_types (delegate_error_types);
+ foreach (DataType delegate_error_type in delegate_error_types) {
if (error_type.compatible (delegate_error_type)) {
match = true;
break;
diff --git a/vala/valaelementaccess.vala b/vala/valaelementaccess.vala
index 62cd1a65d..88c396ae1 100644
--- a/vala/valaelementaccess.vala
+++ b/vala/valaelementaccess.vala
@@ -106,6 +106,13 @@ public class Vala.ElementAccess : Expression {
return container.is_accessible (sym);
}
+ public override void get_error_types (Collection<DataType> collection, SourceReference?
source_reference = null) {
+ container.get_error_types (collection, source_reference);
+ foreach (Expression e in indices) {
+ e.get_error_types (collection, source_reference);
+ }
+ }
+
public override bool check (CodeContext context) {
if (checked) {
return !error;
diff --git a/vala/valaexpressionstatement.vala b/vala/valaexpressionstatement.vala
index 912e5d91a..43cebbe62 100644
--- a/vala/valaexpressionstatement.vala
+++ b/vala/valaexpressionstatement.vala
@@ -80,11 +80,13 @@ public class Vala.ExpressionStatement : CodeNode, Statement {
return false;
}
- add_error_types (expression.get_error_types ());
-
return !error;
}
+ public override void get_error_types (Collection<DataType> collection, SourceReference?
source_reference = null) {
+ expression.get_error_types (collection, source_reference);
+ }
+
public override void emit (CodeGenerator codegen) {
expression.emit (codegen);
diff --git a/vala/valaflowanalyzer.vala b/vala/valaflowanalyzer.vala
index 8b436f5f0..dc7e471a3 100644
--- a/vala/valaflowanalyzer.vala
+++ b/vala/valaflowanalyzer.vala
@@ -870,7 +870,9 @@ public class Vala.FlowAnalyzer : CodeVisitor {
var last_block = current_block;
// exceptional control flow
- foreach (DataType error_data_type in node.get_error_types()) {
+ var error_types = new ArrayList<DataType> ();
+ node.get_error_types (error_types);
+ foreach (DataType error_data_type in error_types) {
var error_type = error_data_type as ErrorType;
var error_class = error_data_type.data_type as Class;
current_block = last_block;
diff --git a/vala/valaforeachstatement.vala b/vala/valaforeachstatement.vala
index 416fb55d2..d0e35485d 100644
--- a/vala/valaforeachstatement.vala
+++ b/vala/valaforeachstatement.vala
@@ -380,12 +380,17 @@ public class Vala.ForeachStatement : Block {
add_local_variable (collection_variable);
collection_variable.active = true;
- add_error_types (collection.get_error_types ());
- add_error_types (body.get_error_types ());
-
return !error;
}
+ public override void get_error_types (Collection<DataType> collection, SourceReference?
source_reference = null) {
+ if (source_reference == null) {
+ source_reference = this.source_reference;
+ }
+ this.collection.get_error_types (collection, source_reference);
+ body.get_error_types (collection, source_reference);
+ }
+
public override void emit (CodeGenerator codegen) {
if (use_iterator) {
base.emit (codegen);
diff --git a/vala/valagirparser.vala b/vala/valagirparser.vala
index 8d266917a..23958dbe9 100644
--- a/vala/valagirparser.vala
+++ b/vala/valagirparser.vala
@@ -1007,7 +1007,7 @@ public class Vala.GirParser : CodeVisitor {
// ensure getter vfunc if the property is abstract
if (m != null) {
getter.process (parser);
- if (m.return_type is VoidType ||
m.get_parameters().size != 0 || m.get_error_types ().size > 0) {
+ if (m.return_type is VoidType ||
m.get_parameters().size != 0 || m.tree_can_fail) {
prop.set_attribute ("NoAccessorMethod", true);
} else {
if (getter.name == name) {
@@ -1034,7 +1034,7 @@ public class Vala.GirParser : CodeVisitor {
// ensure setter vfunc if the property is abstract
if (m != null) {
setter.process (parser);
- if (!(m.return_type is VoidType || m.return_type is
BooleanType) || m.get_parameters ().size != 1 || m.get_error_types ().size > 0) {
+ if (!(m.return_type is VoidType || m.return_type is
BooleanType) || m.get_parameters ().size != 1 || m.tree_can_fail) {
prop.set_attribute ("NoAccessorMethod", true);
prop.set_attribute ("ConcreteAccessor",
false);
} else {
@@ -3188,12 +3188,21 @@ public class Vala.GirParser : CodeVisitor {
if (!(metadata.get_expression (ArgumentType.THROWS) is NullLiteral)) {
if (metadata.has_argument (ArgumentType.THROWS)) {
- var error_types = metadata.get_string(ArgumentType.THROWS).split(",");
- foreach (var error_type in error_types) {
- s.add_error_type (parse_type_from_string (error_type, true,
metadata.get_source_reference (ArgumentType.THROWS)));
+ var error_types = metadata.get_string (ArgumentType.THROWS).split(",");
+ foreach (var error_type_name in error_types) {
+ var error_type = parse_type_from_string (error_type_name, true,
metadata.get_source_reference (ArgumentType.THROWS));
+ if (s is Method) {
+ ((Method) s).add_error_type (error_type);
+ } else {
+ ((Delegate) s).add_error_type (error_type);
+ }
}
} else if (throws_string == "1") {
- s.add_error_type (new ErrorType (null, null));
+ if (s is Method) {
+ ((Method) s).add_error_type (new ErrorType (null, null));
+ } else {
+ ((Delegate) s).add_error_type (new ErrorType (null, null));
+ }
}
}
@@ -3710,7 +3719,9 @@ public class Vala.GirParser : CodeVisitor {
deleg.add_parameter (param.copy ());
}
- foreach (var error_type in orig.get_error_types ()) {
+ var error_types = new ArrayList<DataType> ();
+ orig.get_error_types (error_types, alias.source_reference);
+ foreach (var error_type in error_types) {
deleg.add_error_type (error_type.copy ());
}
@@ -4118,8 +4129,10 @@ public class Vala.GirParser : CodeVisitor {
}
}
- foreach (DataType error_type in finish_method.get_error_types ()) {
- method.add_error_type (error_type.copy ());
+ var error_types = new ArrayList<DataType> ();
+ finish_method.get_error_types (error_types, method.source_reference);
+ foreach (DataType error_type in error_types) {
+ method.add_error_type (error_type);
}
finish_method_node.processed = true;
finish_method_node.merged = true;
diff --git a/vala/valaifstatement.vala b/vala/valaifstatement.vala
index 0f9476d36..61c87ba3f 100644
--- a/vala/valaifstatement.vala
+++ b/vala/valaifstatement.vala
@@ -102,6 +102,14 @@ public class Vala.IfStatement : CodeNode, Statement {
}
}
+ public override void get_error_types (Collection<DataType> collection, SourceReference?
source_reference = null) {
+ condition.get_error_types (collection, source_reference);
+ true_statement.get_error_types (collection, source_reference);
+ if (false_statement != null) {
+ false_statement.get_error_types (collection, source_reference);
+ }
+ }
+
public override bool check (CodeContext context) {
if (checked) {
return !error;
@@ -130,13 +138,6 @@ public class Vala.IfStatement : CodeNode, Statement {
return false;
}
- add_error_types (condition.get_error_types ());
- add_error_types (true_statement.get_error_types ());
-
- if (false_statement != null) {
- add_error_types (false_statement.get_error_types ());
- }
-
return !error;
}
diff --git a/vala/valalambdaexpression.vala b/vala/valalambdaexpression.vala
index 3223e747a..a22497e70 100644
--- a/vala/valalambdaexpression.vala
+++ b/vala/valalambdaexpression.vala
@@ -197,7 +197,9 @@ public class Vala.LambdaExpression : Expression {
return false;
}
- foreach (var error_type in cb.get_error_types ()) {
+ var error_types = new ArrayList<DataType> ();
+ cb.get_error_types (error_types);
+ foreach (var error_type in error_types) {
method.add_error_type (error_type.copy ());
}
diff --git a/vala/valaloop.vala b/vala/valaloop.vala
index 4e6edbe63..ce6894633 100644
--- a/vala/valaloop.vala
+++ b/vala/valaloop.vala
@@ -61,6 +61,10 @@ public class Vala.Loop : CodeNode, Statement {
body.accept (visitor);
}
+ public override void get_error_types (Collection<DataType> collection, SourceReference?
source_reference = null) {
+ body.get_error_types (collection, source_reference);
+ }
+
public override bool check (CodeContext context) {
if (checked) {
return !error;
@@ -70,8 +74,6 @@ public class Vala.Loop : CodeNode, Statement {
body.check (context);
- add_error_types (body.get_error_types ());
-
return !error;
}
diff --git a/vala/valamemberaccess.vala b/vala/valamemberaccess.vala
index 64263ba3e..805b168f3 100644
--- a/vala/valamemberaccess.vala
+++ b/vala/valamemberaccess.vala
@@ -193,6 +193,12 @@ public class Vala.MemberAccess : Expression {
}
}
+ public override void get_error_types (Collection<DataType> collection, SourceReference?
source_reference = null) {
+ if (inner != null) {
+ inner.get_error_types (collection, source_reference);
+ }
+ }
+
public override bool check (CodeContext context) {
if (checked) {
return !error;
diff --git a/vala/valamethod.vala b/vala/valamethod.vala
index 1db46ae45..f567b246e 100644
--- a/vala/valamethod.vala
+++ b/vala/valamethod.vala
@@ -188,6 +188,8 @@ public class Vala.Method : Subroutine, Callable {
private List<Expression> postconditions;
private DataType _return_type;
+ protected List<DataType> error_types;
+
private weak Method _base_method;
private weak Method _base_interface_method;
private DataType _base_interface_type;
@@ -272,9 +274,11 @@ public class Vala.Method : Subroutine, Callable {
param.accept (visitor);
}
- foreach (DataType error_type in get_error_types ()) {
+ if (error_types != null) {
+ foreach (DataType error_type in error_types) {
error_type.accept (visitor);
}
+ }
if (result_var != null) {
result_var.accept (visitor);
@@ -387,9 +391,12 @@ public class Vala.Method : Subroutine, Callable {
}
/* this method may throw less but not more errors than the base method */
- foreach (DataType method_error_type in get_error_types ()) {
+ var base_method_errors = new ArrayList<DataType> ();
+ base_method.get_error_types (base_method_errors);
+ if (error_types != null) {
+ foreach (DataType method_error_type in error_types) {
bool match = false;
- foreach (DataType base_method_error_type in base_method.get_error_types ()) {
+ foreach (DataType base_method_error_type in base_method_errors) {
if (method_error_type.compatible (base_method_error_type)) {
match = true;
break;
@@ -401,6 +408,7 @@ public class Vala.Method : Subroutine, Callable {
return false;
}
}
+ }
if (base_method.coroutine != this.coroutine) {
invalid_match = "async mismatch";
return false;
@@ -509,6 +517,32 @@ public class Vala.Method : Subroutine, Callable {
return _empty_expression_list;
}
+ /**
+ * Adds an error type to the exceptions that can be
+ * thrown by this method.
+ */
+ public void add_error_type (DataType error_type) {
+ if (error_types == null) {
+ error_types = new ArrayList<DataType> ();
+ }
+ error_types.add (error_type);
+ error_type.parent_node = this;
+ }
+
+ public override void get_error_types (Collection<DataType> collection, SourceReference?
source_reference = null) {
+ if (error_types != null) {
+ foreach (var error_type in error_types) {
+ if (source_reference != null) {
+ var type = error_type.copy ();
+ type.source_reference = source_reference;
+ collection.add (type);
+ } else {
+ collection.add (error_type);
+ }
+ }
+ }
+ }
+
public override void replace_type (DataType old_type, DataType new_type) {
if (base_interface_type == old_type) {
base_interface_type = new_type;
@@ -518,7 +552,7 @@ public class Vala.Method : Subroutine, Callable {
return_type = new_type;
return;
}
- var error_types = get_error_types ();
+ if (error_types != null) {
for (int i = 0; i < error_types.size; i++) {
if (error_types[i] == old_type) {
error_types[i] = new_type;
@@ -526,6 +560,7 @@ public class Vala.Method : Subroutine, Callable {
}
}
}
+ }
private void find_base_methods () {
if (base_methods_valid) {
@@ -635,7 +670,7 @@ public class Vala.Method : Subroutine, Callable {
this_parameter.variable_type.value_owned = true;
}
if (get_attribute ("NoThrow") != null) {
- get_error_types ().clear ();
+ error_types = null;
}
if (parent_symbol is Class && (is_abstract || is_virtual)) {
@@ -746,7 +781,8 @@ public class Vala.Method : Subroutine, Callable {
}
}
- foreach (DataType error_type in get_error_types ()) {
+ if (error_types != null) {
+ foreach (DataType error_type in error_types) {
error_type.check (context);
// check whether error type is at least as accessible as the method
@@ -756,6 +792,7 @@ public class Vala.Method : Subroutine, Callable {
return false;
}
}
+ }
if (result_var != null) {
result_var.check (context);
@@ -849,13 +886,17 @@ public class Vala.Method : Subroutine, Callable {
// check that all errors that can be thrown in the method body are declared
if (body != null) {
- foreach (DataType body_error_type in body.get_error_types ()) {
+ var body_errors = new ArrayList<DataType> ();
+ body.get_error_types (body_errors);
+ foreach (DataType body_error_type in body_errors) {
bool can_propagate_error = false;
- foreach (DataType method_error_type in get_error_types ()) {
+ if (error_types != null) {
+ foreach (DataType method_error_type in error_types) {
if (body_error_type.compatible (method_error_type)) {
can_propagate_error = true;
}
}
+ }
bool is_dynamic_error = body_error_type is ErrorType && ((ErrorType)
body_error_type).dynamic_error;
if (!can_propagate_error && !is_dynamic_error) {
Report.warning (body_error_type.source_reference, "unhandled error
`%s'".printf (body_error_type.to_string()));
@@ -872,7 +913,9 @@ public class Vala.Method : Subroutine, Callable {
bool throws_gerror = false;
bool throws_gioerror = false;
bool throws_gdbuserror = false;
- foreach (DataType error_type in get_error_types ()) {
+ var error_types = new ArrayList<DataType> ();
+ get_error_types (error_types);
+ foreach (DataType error_type in error_types) {
if (!(error_type is ErrorType)) {
continue;
}
@@ -1123,7 +1166,7 @@ public class Vala.Method : Subroutine, Callable {
}
public bool has_error_type_parameter () {
- if (get_error_types ().size > 0) {
+ if (tree_can_fail) {
return true;
}
if (base_method != null && base_method != this && base_method.has_error_type_parameter ()) {
diff --git a/vala/valamethodcall.vala b/vala/valamethodcall.vala
index 082e061f7..a09db9b11 100644
--- a/vala/valamethodcall.vala
+++ b/vala/valamethodcall.vala
@@ -142,6 +142,27 @@ public class Vala.MethodCall : Expression {
return call.is_accessible (sym);
}
+ public override void get_error_types (Collection<DataType> collection, SourceReference?
source_reference = null) {
+ if (source_reference == null) {
+ source_reference = this.source_reference;
+ }
+ var mtype = call.value_type;
+ if (mtype is MethodType) {
+ var m = ((MethodType) mtype).method_symbol;
+ if (!(m != null && m.coroutine && !is_yield_expression && ((MemberAccess)
call).member_name != "end")) {
+ m.get_error_types (collection, source_reference);
+ }
+ } else if (mtype is ObjectType) {
+ // constructor
+ var cl = (Class) ((ObjectType) mtype).type_symbol;
+ var m = cl.default_construction_method;
+ m.get_error_types (collection, source_reference);
+ } else if (mtype is DelegateType) {
+ var d = ((DelegateType) mtype).delegate_symbol;
+ d.get_error_types (collection, source_reference);
+ }
+ }
+
public override bool check (CodeContext context) {
if (checked) {
return !error;
@@ -471,8 +492,6 @@ public class Vala.MethodCall : Expression {
formal_value_type = ret_type.copy ();
value_type = formal_value_type.get_actual_type (target_object_type, method_type_args, this);
- bool may_throw = false;
-
if (mtype is MethodType) {
var m = ((MethodType) mtype).method_symbol;
if (is_yield_expression) {
@@ -485,19 +504,7 @@ public class Vala.MethodCall : Expression {
Report.error (source_reference, "yield expression not available
outside async method");
}
}
- if (m != null && m.coroutine && !is_yield_expression && ((MemberAccess)
call).member_name != "end") {
- // .begin call of async method, no error can happen here
- } else {
- foreach (DataType error_type in m.get_error_types ()) {
- may_throw = true;
- // ensure we can trace back which expression may throw errors of this
type
- var call_error_type = error_type.copy ();
- call_error_type.source_reference = source_reference;
-
- add_error_type (call_error_type);
- }
- }
if (m.returns_floating_reference) {
value_type.floating_reference = true;
}
@@ -505,7 +512,7 @@ public class Vala.MethodCall : Expression {
((MemberAccess) call).inner.lvalue = true;
}
// avoid passing possible null to ref_sink_function without checking
- if (may_throw && !value_type.nullable && value_type.floating_reference && ret_type is
ObjectType) {
+ if (tree_can_fail && !value_type.nullable && value_type.floating_reference &&
ret_type is ObjectType) {
value_type.nullable = true;
}
@@ -589,30 +596,6 @@ public class Vala.MethodCall : Expression {
mtype = new MethodType (m.get_end_method ());
}
}
- } else if (mtype is ObjectType) {
- // constructor
- var cl = (Class) ((ObjectType) mtype).type_symbol;
- var m = cl.default_construction_method;
- foreach (DataType error_type in m.get_error_types ()) {
- may_throw = true;
-
- // ensure we can trace back which expression may throw errors of this type
- var call_error_type = error_type.copy ();
- call_error_type.source_reference = source_reference;
-
- add_error_type (call_error_type);
- }
- } else if (mtype is DelegateType) {
- var d = ((DelegateType) mtype).delegate_symbol;
- foreach (DataType error_type in d.get_error_types ()) {
- may_throw = true;
-
- // ensure we can trace back which expression may throw errors of this type
- var call_error_type = error_type.copy ();
- call_error_type.source_reference = source_reference;
-
- add_error_type (call_error_type);
- }
}
if (!context.analyzer.check_arguments (this, mtype, params, get_argument_list ())) {
@@ -628,7 +611,7 @@ public class Vala.MethodCall : Expression {
}
}
- if (may_throw) {
+ if (tree_can_fail) {
if (parent_node is LocalVariable || parent_node is ExpressionStatement) {
// simple statements, no side effects after method call
} else if (!(context.analyzer.current_symbol is Block)) {
diff --git a/vala/valaobjectcreationexpression.vala b/vala/valaobjectcreationexpression.vala
index 8bef09b25..4b609aee7 100644
--- a/vala/valaobjectcreationexpression.vala
+++ b/vala/valaobjectcreationexpression.vala
@@ -246,8 +246,6 @@ public class Vala.ObjectCreationExpression : Expression {
value_type = type_reference.copy ();
value_type.value_owned = true;
- bool may_throw = false;
-
int given_num_type_args = type_reference.get_type_arguments ().size;
int expected_num_type_args = 0;
@@ -423,16 +421,6 @@ public class Vala.ObjectCreationExpression : Expression {
}
context.analyzer.check_arguments (this, new MethodType (m), m.get_parameters (),
args);
-
- foreach (DataType error_type in m.get_error_types ()) {
- may_throw = true;
-
- // ensure we can trace back which expression may throw errors of this type
- var call_error_type = error_type.copy ();
- call_error_type.source_reference = source_reference;
-
- add_error_type (call_error_type);
- }
} else if (type_reference is ErrorType) {
if (type_reference != null) {
type_reference.check (context);
@@ -484,7 +472,7 @@ public class Vala.ObjectCreationExpression : Expression {
context.analyzer.visit_member_initializer (init, type_reference);
}
- if (may_throw) {
+ if (tree_can_fail) {
if (parent_node is LocalVariable || parent_node is ExpressionStatement) {
// simple statements, no side effects after method call
} else if (!(context.analyzer.current_symbol is Block)) {
@@ -519,6 +507,16 @@ public class Vala.ObjectCreationExpression : Expression {
return !error;
}
+ public override void get_error_types (Collection<DataType> collection, SourceReference?
source_reference = null) {
+ if (symbol_reference is Method) {
+ if (source_reference == null) {
+ source_reference = this.source_reference;
+ }
+ var m = (Method) symbol_reference;
+ m.get_error_types (collection, source_reference);
+ }
+ }
+
public override void emit (CodeGenerator codegen) {
foreach (Expression arg in argument_list) {
arg.emit (codegen);
diff --git a/vala/valaparser.vala b/vala/valaparser.vala
index 01ad01d29..f52fba893 100644
--- a/vala/valaparser.vala
+++ b/vala/valaparser.vala
@@ -2805,7 +2805,7 @@ public class Vala.Parser : CodeVisitor {
if (accept (TokenType.THROWS)) {
do {
- prop.add_error_type (parse_type (true, false));
+ parse_type (true, false);
} while (accept (TokenType.COMMA));
Report.error (prop.source_reference, "properties throwing errors are not supported
yet");
}
diff --git a/vala/valapointerindirection.vala b/vala/valapointerindirection.vala
index 97f6473a8..20dbcbfde 100644
--- a/vala/valapointerindirection.vala
+++ b/vala/valapointerindirection.vala
@@ -73,6 +73,10 @@ public class Vala.PointerIndirection : Expression {
return inner.is_accessible (sym);
}
+ public override void get_error_types (Collection<DataType> collection, SourceReference?
source_reference = null) {
+ inner.get_error_types (collection, source_reference);
+ }
+
public override bool check (CodeContext context) {
if (checked) {
return !error;
diff --git a/vala/valapropertyaccessor.vala b/vala/valapropertyaccessor.vala
index 46952bb19..e348c2510 100644
--- a/vala/valapropertyaccessor.vala
+++ b/vala/valapropertyaccessor.vala
@@ -197,7 +197,9 @@ public class Vala.PropertyAccessor : Subroutine {
body.check (context);
- foreach (DataType body_error_type in body.get_error_types ()) {
+ var error_types = new ArrayList<DataType> ();
+ body.get_error_types (error_types);
+ foreach (DataType body_error_type in error_types) {
if (!((ErrorType) body_error_type).dynamic_error) {
Report.warning (body_error_type.source_reference, "unhandled error
`%s'".printf (body_error_type.to_string()));
}
diff --git a/vala/valareturnstatement.vala b/vala/valareturnstatement.vala
index 83e81a2cc..cdb782cf2 100644
--- a/vala/valareturnstatement.vala
+++ b/vala/valareturnstatement.vala
@@ -70,6 +70,12 @@ public class Vala.ReturnStatement : CodeNode, Statement {
}
}
+ public override void get_error_types (Collection<DataType> collection, SourceReference?
source_reference = null) {
+ if (return_expression != null) {
+ return_expression.get_error_types (collection, source_reference);
+ }
+ }
+
public override bool check (CodeContext context) {
if (checked) {
return !error;
@@ -138,8 +144,6 @@ public class Vala.ReturnStatement : CodeNode, Statement {
Report.warning (source_reference, "`null' incompatible with return type `%s'".printf
(context.analyzer.current_return_type.to_string ()));
}
- add_error_types (return_expression.get_error_types ());
-
return !error;
}
diff --git a/vala/valastatementlist.vala b/vala/valastatementlist.vala
index 934227a1a..515959815 100644
--- a/vala/valastatementlist.vala
+++ b/vala/valastatementlist.vala
@@ -48,6 +48,12 @@ public class Vala.StatementList : CodeNode, Statement {
list.insert (index, stmt);
}
+ public override void get_error_types (Collection<DataType> collection, SourceReference?
source_reference = null) {
+ foreach (var stmt in list) {
+ stmt.get_error_types (collection, source_reference);
+ }
+ }
+
public override void accept (CodeVisitor visitor) {
foreach (Statement stmt in list) {
stmt.accept (visitor);
diff --git a/vala/valaswitchsection.vala b/vala/valaswitchsection.vala
index 156740f80..2b0da5837 100644
--- a/vala/valaswitchsection.vala
+++ b/vala/valaswitchsection.vala
@@ -85,6 +85,13 @@ public class Vala.SwitchSection : Block {
}
}
+ public override void get_error_types (Collection<DataType> collection, SourceReference?
source_reference = null) {
+ // use get_statements () instead of statement_list to not miss errors within StatementList
objects
+ foreach (var stmt in get_statements ()) {
+ stmt.get_error_types (collection, source_reference);
+ }
+ }
+
public override bool check (CodeContext context) {
if (checked) {
return !error;
@@ -111,11 +118,6 @@ public class Vala.SwitchSection : Block {
local.active = false;
}
- // use get_statements () instead of statement_list to not miss errors within StatementList
objects
- foreach (Statement stmt in get_statements ()) {
- add_error_types (stmt.get_error_types ());
- }
-
context.analyzer.current_symbol = old_symbol;
context.analyzer.insert_block = old_insert_block;
diff --git a/vala/valaswitchstatement.vala b/vala/valaswitchstatement.vala
index 66dab0193..78cfa3d82 100644
--- a/vala/valaswitchstatement.vala
+++ b/vala/valaswitchstatement.vala
@@ -93,6 +93,12 @@ public class Vala.SwitchStatement : CodeNode, Statement {
}
}
+ public override void get_error_types (Collection<DataType> collection, SourceReference?
source_reference = null) {
+ foreach (SwitchSection section in sections) {
+ section.get_error_types (collection, source_reference);
+ }
+ }
+
public override bool check (CodeContext context) {
if (checked) {
return !error;
@@ -140,7 +146,6 @@ public class Vala.SwitchStatement : CodeNode, Statement {
}
}
}
- add_error_types (section.get_error_types ());
}
return !error;
diff --git a/vala/valathrowstatement.vala b/vala/valathrowstatement.vala
index d4cade7a2..9349b1818 100644
--- a/vala/valathrowstatement.vala
+++ b/vala/valathrowstatement.vala
@@ -72,6 +72,15 @@ public class Vala.ThrowStatement : CodeNode, Statement {
}
}
+ public override void get_error_types (Collection<DataType> collection, SourceReference?
source_reference = null) {
+ if (source_reference == null) {
+ source_reference = this.source_reference;
+ }
+ var error_type = error_expression.value_type.copy ();
+ error_type.source_reference = source_reference;
+ collection.add (error_type);
+ }
+
public override bool check (CodeContext context) {
if (checked) {
return !error;
@@ -107,11 +116,6 @@ public class Vala.ThrowStatement : CodeNode, Statement {
}
}
- var error_type = error_expression.value_type.copy ();
- error_type.source_reference = source_reference;
-
- add_error_type (error_type);
-
return !error;
}
diff --git a/vala/valatrystatement.vala b/vala/valatrystatement.vala
index 7e82228a5..fcacfc7fb 100644
--- a/vala/valatrystatement.vala
+++ b/vala/valatrystatement.vala
@@ -104,6 +104,31 @@ public class Vala.TryStatement : CodeNode, Statement {
}
}
+ public override void get_error_types (Collection<DataType> collection, SourceReference?
source_reference = null) {
+ var error_types = new ArrayList<DataType> ();
+ body.get_error_types (error_types, source_reference);
+
+ foreach (CatchClause clause in catch_clauses) {
+ for (int i=0; i < error_types.size; i++) {
+ var error_type = error_types[i];
+ if (clause.error_type == null || error_type.compatible (clause.error_type)) {
+ error_types.remove_at (i);
+ i--;
+ }
+ }
+
+ clause.body.get_error_types (collection, source_reference);
+ }
+
+ if (finally_body != null) {
+ finally_body.get_error_types (collection, source_reference);
+ }
+
+ foreach (var error_type in error_types) {
+ collection.add (error_type);
+ }
+ }
+
public override bool check (CodeContext context) {
if (checked) {
return !error;
@@ -119,38 +144,14 @@ public class Vala.TryStatement : CodeNode, Statement {
body.check (context);
- var error_types = new ArrayList<DataType> ();
- foreach (DataType body_error_type in body.get_error_types ()) {
- error_types.add (body_error_type);
- }
-
- var handled_error_types = new ArrayList<DataType> ();
foreach (CatchClause clause in catch_clauses) {
- foreach (DataType body_error_type in error_types) {
- if (clause.error_type == null || body_error_type.compatible
(clause.error_type)) {
- handled_error_types.add (body_error_type);
- }
- }
- foreach (DataType handled_error_type in handled_error_types) {
- error_types.remove (handled_error_type);
- }
- handled_error_types.clear ();
-
clause.check (context);
- foreach (DataType body_error_type in clause.body.get_error_types ()) {
- error_types.add (body_error_type);
- }
}
if (finally_body != null) {
finally_body.check (context);
- foreach (DataType body_error_type in finally_body.get_error_types ()) {
- error_types.add (body_error_type);
- }
}
- add_error_types (error_types);
-
return !error;
}
diff --git a/vala/valaunaryexpression.vala b/vala/valaunaryexpression.vala
index 87f4032ef..7ccbecb1d 100644
--- a/vala/valaunaryexpression.vala
+++ b/vala/valaunaryexpression.vala
@@ -150,6 +150,10 @@ public class Vala.UnaryExpression : Expression {
return null;
}
+ public override void get_error_types (Collection<DataType> collection, SourceReference?
source_reference = null) {
+ inner.get_error_types (collection, source_reference);
+ }
+
public override bool check (CodeContext context) {
if (checked) {
return !error;
diff --git a/valadoc/symbolresolver.vala b/valadoc/symbolresolver.vala
index 4980e88ab..adf19a34a 100644
--- a/valadoc/symbolresolver.vala
+++ b/valadoc/symbolresolver.vala
@@ -37,8 +37,10 @@ public class Valadoc.Drivers.SymbolResolver : Visitor {
return symbol_map.get (symbol);
}
- private void resolve_thrown_list (Symbol symbol, Vala.List<Vala.DataType> types) {
- foreach (Vala.DataType type in types) {
+ private void resolve_thrown_list (Symbol symbol, Vala.Symbol vala_symbol) {
+ var error_types = new Vala.ArrayList<Vala.DataType> ();
+ vala_symbol.get_error_types (error_types);
+ foreach (Vala.DataType type in error_types) {
Vala.ErrorDomain vala_edom = (Vala.ErrorDomain) type.data_type;
Symbol? edom = symbol_map.get (vala_edom);
symbol.add_child (edom ?? glib_error);
@@ -216,7 +218,7 @@ public class Valadoc.Drivers.SymbolResolver : Visitor {
resolve_type_reference (item.return_type);
- resolve_thrown_list (item, vala_delegate.get_error_types ());
+ resolve_thrown_list (item, vala_delegate);
item.accept_all_children (this, false);
}
@@ -248,7 +250,7 @@ public class Valadoc.Drivers.SymbolResolver : Visitor {
item.base_method = (Method?) resolve (base_vala_method);
}
- resolve_thrown_list (item, vala_method.get_error_types ());
+ resolve_thrown_list (item, vala_method);
resolve_type_reference (item.return_type);
diff --git a/vapigen/valagidlparser.vala b/vapigen/valagidlparser.vala
index a187c6df3..1d07cc63a 100644
--- a/vapigen/valagidlparser.vala
+++ b/vapigen/valagidlparser.vala
@@ -1817,8 +1817,10 @@ public class Vala.GIdlParser : CodeVisitor {
m.add_parameter (async_param);
}
}
- foreach (DataType error_type in finish_method.get_error_types ()) {
- m.add_error_type (error_type.copy ());
+ var error_types = new ArrayList<DataType> ();
+ finish_method.get_error_types (error_types, m.source_reference);
+ foreach (DataType error_type in error_types) {
+ m.add_error_type (error_type);
}
finish_methods.add (finish_method);
}
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