diff options
Diffstat (limited to 'gcc/tree.c')
| -rw-r--r-- | gcc/tree.c | 24 |
1 files changed, 23 insertions, 1 deletions
@@ -1185,7 +1185,9 @@ copy_node (node) for (i = length / sizeof (int) * sizeof (int); i < length; i++) ((char *) t)[i] = ((char *) node)[i]; - TREE_CHAIN (t) = 0; + /* EXPR_WITH_FILE_LOCATION must keep filename info stored in TREE_CHAIN */ + if (TREE_CODE (node) != EXPR_WITH_FILE_LOCATION) + TREE_CHAIN (t) = 0; TREE_ASM_WRITTEN (t) = 0; if (TREE_CODE_CLASS (code) == 'd') @@ -3218,6 +3220,26 @@ build_block (vars, tags, subblocks, supercontext, chain) BLOCK_CHAIN (block) = chain; return block; } + +/* EXPR_WITH_FILE_LOCATION are used to keep track of the exact + location where an expression or an identifier were encountered. It + is necessary for languages where the frontend parser will handle + recursively more than one file (Java is one of them). */ + +tree +build_expr_wfl (node, file, line, col) + tree node; + char *file; + int line, col; +{ + register tree wfl = make_node (EXPR_WITH_FILE_LOCATION); + EXPR_WFL_NODE (wfl) = node; + EXPR_WFL_FILENAME_NODE (wfl) = get_identifier (file); + EXPR_WFL_SET_LINECOL (wfl, line, col); + TREE_SIDE_EFFECTS (wfl) = TREE_SIDE_EFFECTS (node); + TREE_TYPE (wfl) = TREE_TYPE (node); + return wfl; +} /* Return a declaration like DDECL except that its DECL_MACHINE_ATTRIBUTE is ATTRIBUTE. */ |