Changeset ff489bf for src/Parser

Timestamp:

Mar 10, 2020, 10:49:25 AM (5 years ago)

Author:

Peter A. Buhr <pabuhr@…>

Branches:

ADT, arm-eh, ast-experimental, enum, forall-pointer-decay, jacob/cs343-translation, master, new-ast, new-ast-unique-expr, pthread-emulation, qualifiedEnum

Children:

dfda49f

Parents:

9867cdb (diff), 6565321 (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the (diff) links above to see all the changes relative to each parent.

Message:

Merge branch 'master' of plg.uwaterloo.ca:software/cfa/cfa-cc

Location:

src/Parser

Files:

• ParseNode.h (modified) (1 diff)
• StatementNode.cc (modified) (1 diff)
• TypeData.cc (modified) (1 diff)
• lex.ll (modified) (2 diffs)
• parser.yy (modified) (3 diffs)

src/Parser/ParseNode.h

@@ -428 +428 @@
 Statement * build_asm( bool voltile, Expression * instruction, ExpressionNode * output = nullptr, ExpressionNode * input = nullptr, ExpressionNode * clobber = nullptr, LabelNode * gotolabels = nullptr );
 Statement * build_directive( std::string * directive );
+SuspendStmt * build_suspend( StatementNode *, SuspendStmt::Type = SuspendStmt::None);
 WaitForStmt * build_waitfor( ExpressionNode * target, StatementNode * stmt, ExpressionNode * when );
 WaitForStmt * build_waitfor( ExpressionNode * target, StatementNode * stmt, ExpressionNode * when, WaitForStmt * existing );

src/Parser/StatementNode.cc

@@ -249 +249 @@
 } // build_finally
 
+SuspendStmt * build_suspend( StatementNode * then, SuspendStmt::Type type ) {
+        auto node = new SuspendStmt();
+
+        node->type = type;
+
+        std::list< Statement * > stmts;
+        buildMoveList< Statement, StatementNode >( then, stmts );
+        if(!stmts.empty()) {
+                assert( stmts.size() == 1 );
+                node->then = dynamic_cast< CompoundStmt * >( stmts.front() );
+        }
+
+        return node;
+}
+
 WaitForStmt * build_waitfor( ExpressionNode * targetExpr, StatementNode * stmt, ExpressionNode * when ) {
         auto node = new WaitForStmt();

src/Parser/TypeData.cc

@@ -769 +769 @@
           case AggregateDecl::Struct:
           case AggregateDecl::Coroutine:
+          case AggregateDecl::Generator:
           case AggregateDecl::Monitor:
           case AggregateDecl::Thread:

src/Parser/lex.ll

@@ -65 +65 @@
 #define FLOATXX(v) KEYWORD_RETURN(v);
 #else
-#define FLOATXX(v) IDENTIFIER_RETURN(); 
+#define FLOATXX(v) IDENTIFIER_RETURN();
 #endif // HAVE_KEYWORDS_FLOATXX
 
@@ -301 +301 @@
 _Static_assert  { KEYWORD_RETURN(STATICASSERT); }               // C11
 struct                  { KEYWORD_RETURN(STRUCT); }
-        /* suspend                      { KEYWORD_RETURN(SUSPEND); }                    // CFA */
+suspend                 { KEYWORD_RETURN(SUSPEND); }                    // CFA
 switch                  { KEYWORD_RETURN(SWITCH); }
 thread                  { KEYWORD_RETURN(THREAD); }                             // C11

src/Parser/parser.yy

@@ -278 +278 @@
 %token OTYPE FTYPE DTYPE TTYPE TRAIT                                    // CFA
 %token SIZEOF OFFSETOF
-// %token SUSPEND RESUME                                                                        // CFA
+// %token RESUME                                                                        // CFA
+%token SUSPEND                                                                  // CFA
 %token ATTRIBUTE EXTENSION                                                              // GCC
 %token IF ELSE SWITCH CASE DEFAULT DO WHILE FOR BREAK CONTINUE GOTO RETURN
@@ -1265 +1266 @@
         | RETURN '{' initializer_list_opt comma_opt '}' ';'
                 { SemanticError( yylloc, "Initializer return is currently unimplemented." ); $$ = nullptr; }
-        // | SUSPEND ';'
-        //      { SemanticError( yylloc, "Suspend expression is currently unimplemented." ); $$ = nullptr; }
-        // | SUSPEND compound_statement ';'
-        //      { SemanticError( yylloc, "Suspend expression is currently unimplemented." ); $$ = nullptr; }
+        | SUSPEND ';'
+                { $$ = new StatementNode( build_suspend( nullptr ) ); }
+        | SUSPEND compound_statement
+                { $$ = new StatementNode( build_suspend( $2 ) ); }
+        | SUSPEND COROUTINE ';'
+                { $$ = new StatementNode( build_suspend( nullptr, SuspendStmt::Coroutine ) ); }
+        | SUSPEND COROUTINE compound_statement
+                { $$ = new StatementNode( build_suspend( $3, SuspendStmt::Coroutine ) ); }
+        | SUSPEND GENERATOR ';'
+                { $$ = new StatementNode( build_suspend( nullptr, SuspendStmt::Generator ) ); }
+        | SUSPEND GENERATOR compound_statement
+                { $$ = new StatementNode( build_suspend( $3, SuspendStmt::Generator ) ); }
         | THROW assignment_expression_opt ';'                           // handles rethrow
                 { $$ = new StatementNode( build_throw( $2 ) ); }
@@ -2083 +2092 @@
 aggregate_control:                                                                              // CFA
         GENERATOR
-                { SemanticError( yylloc, "generator is currently unimplemented." ); $$ = AggregateDecl::NoAggregate; }
+                { yyy = true; $$ = AggregateDecl::Generator; }
         | MONITOR GENERATOR
                 { SemanticError( yylloc, "monitor generator is currently unimplemented." ); $$ = AggregateDecl::NoAggregate; }