jscript: Fallback to begin of input in script_parse if error location was not recorded.

Signed-off-by: Jacek Caban <jacek@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>

jscript: Fallback to begin of input in script_parse if error location was not recorded.
bb61c8d3 · Jacek Caban · Alexandre Julliard · 1f9a4e13 · bb61c8d3
Commit bb61c8d3 authored Mar 24, 2021 by Jacek Caban Committed by Alexandre Julliard Mar 24, 2021
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Showing with 3 additions and 2 deletions

parser.y dlls/jscript/parser.y +3 -2

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--- a/dlls/jscript/parser.y
+++ b/dlls/jscript/parser.y
@@ -1595,7 +1595,8 @@ HRESULT script_parse(script_ctx_t *ctx, struct _compiler_ctx_t *compiler, byteco
    heap_pool_clear(mark);
    hres = parser_ctx->hres;
    if(FAILED(hres)) {
-        const WCHAR *line_start = code->source + parser_ctx->error_loc, *line_end = line_start;
+        unsigned int error_loc = parser_ctx->error_loc == -1 ? 0 : parser_ctx->error_loc;
+        const WCHAR *line_start = code->source + error_loc, *line_end = line_start;
        jsstr_t *line_str;

        while(line_start > code->source && line_start[-1] != '\n')
@@ -1609,7 +1610,7 @@ HRESULT script_parse(script_ctx_t *ctx, struct _compiler_ctx_t *compiler, byteco
             debugstr_jsstr(line_str));

        throw_error(ctx, hres, NULL);
-        set_error_location(ctx->ei, code, parser_ctx->error_loc, IDS_COMPILATION_ERROR, line_str);
+        set_error_location(ctx->ei, code, error_loc, IDS_COMPILATION_ERROR, line_str);
        parser_release(parser_ctx);
        if(line_str)
            jsstr_release(line_str);