Move expression_context_* globals to parser_state

This moves the expression_context_block and expression_context_pc
globals to be members of parser_state and updates the parsers.

gdb/ChangeLog
2019-04-04  Tom Tromey  <tom@tromey.com>

	* rust-exp.y (rust_parser::crate_name, rust_parser::super_name)
	(rust_parser::convert_ast_to_type)
	(rust_parser::convert_ast_to_expression, rust_lex_tests): Update.
	* parser-defs.h (struct parser_state) <parser_state>: Add
	parameters.  Initialize new members.
	<expression_context_block, expression_context_pc>: New members.
	* parse.c (expression_context_block, expression_context_pc):
	Remove globals.
	(parse_exp_in_context): Update.
	* p-exp.y: Update all rules.
	(yylex): Update.
	* m2-exp.y: Update all rules.
	(yylex): Update.
	* go-exp.y (yylex): Update.
	* f-exp.y (yylex): Update.
	* d-exp.y: Update all rules.
	(yylex): Update.
	* c-exp.y: Update all rules.
	(lex_one_token, classify_name, yylex, c_parse): Update.
	* ada-exp.y (write_var_or_type, write_name_assoc): Update.

1 files changed, 12 insertions, 9 deletions

diff --git a/gdb/rust-exp.y b/gdb/rust-exp.y
index 9b6ca19..1b7e33e 100644
--- a/gdb/rust-exp.y
+++ b/gdb/rust-exp.y
@@ -1033,7 +1033,7 @@ rust_parser::concat3 (const char *s1, const char *s2, const char *s3)
 const struct rust_op *
 rust_parser::crate_name (const struct rust_op *name)
 {
-  std::string crate = rust_crate_for_block (expression_context_block);
+  std::string crate = rust_crate_for_block (pstate->expression_context_block);
   struct stoken result;
 
   gdb_assert (name->opcode == OP_VAR_VALUE);
@@ -1053,7 +1053,7 @@ rust_parser::crate_name (const struct rust_op *name)
 const struct rust_op *
 rust_parser::super_name (const struct rust_op *ident, unsigned int n_supers)
 {
-  const char *scope = block_scope (expression_context_block);
+  const char *scope = block_scope (pstate->expression_context_block);
   int offset;
 
   gdb_assert (ident->opcode == OP_VAR_VALUE);
@@ -2045,7 +2045,7 @@ rust_parser::convert_ast_to_type (const struct rust_op *operation)
     {
       const char *varname = convert_name (operation);
 
-      result = rust_lookup_type (varname, expression_context_block);
+      result = rust_lookup_type (varname, pstate->expression_context_block);
       if (result == NULL)
 	error (_("No typed name '%s' in current context"), varname);
       return result;
@@ -2118,7 +2118,7 @@ rust_parser::convert_ast_to_type (const struct rust_op *operation)
 
 	/* We don't allow creating new tuple types (yet), but we do
 	   allow looking up existing tuple types.  */
-	result = rust_lookup_type (name, expression_context_block);
+	result = rust_lookup_type (name, pstate->expression_context_block);
 	if (result == NULL)
 	  error (_("could not find tuple type '%s'"), name);
       }
@@ -2311,7 +2311,8 @@ rust_parser::convert_ast_to_expression (const struct rust_op *operation,
 	    struct type *type;
 	    const char *varname = convert_name (operation->left.op);
 
-	    type = rust_lookup_type (varname, expression_context_block);
+	    type = rust_lookup_type (varname,
+				     pstate->expression_context_block);
 	    if (type != NULL)
 	      {
 		/* This is actually a tuple struct expression, not a
@@ -2372,7 +2373,7 @@ rust_parser::convert_ast_to_expression (const struct rust_op *operation,
 	  }
 
 	varname = convert_name (operation);
-	sym = rust_lookup_symbol (varname, expression_context_block,
+	sym = rust_lookup_symbol (varname, pstate->expression_context_block,
 				  VAR_DOMAIN);
 	if (sym.symbol != NULL && SYMBOL_CLASS (sym.symbol) != LOC_TYPEDEF)
 	  {
@@ -2391,7 +2392,8 @@ rust_parser::convert_ast_to_expression (const struct rust_op *operation,
 		type = SYMBOL_TYPE (sym.symbol);
 	      }
 	    if (type == NULL)
-	      type = rust_lookup_type (varname, expression_context_block);
+	      type = rust_lookup_type (varname,
+				       pstate->expression_context_block);
 	    if (type == NULL)
 	      error (_("No symbol '%s' in current context"), varname);
 
@@ -2449,7 +2451,7 @@ rust_parser::convert_ast_to_expression (const struct rust_op *operation,
 	  }
 
 	name = convert_name (operation->left.op);
-	type = rust_lookup_type (name, expression_context_block);
+	type = rust_lookup_type (name, pstate->expression_context_block);
 	if (type == NULL)
 	  error (_("Could not find type '%s'"), operation->left.sval.ptr);
 
@@ -2707,7 +2709,8 @@ rust_lex_tests (void)
   int i;
 
   // Set up dummy "parser", so that rust_type works.
-  struct parser_state ps (&rust_language_defn, target_gdbarch ());
+  struct parser_state ps (&rust_language_defn, target_gdbarch (),
+			  nullptr, 0);
   rust_parser parser (&ps);
 
   rust_lex_test_one (&parser, "", 0);