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authorLeonid Logvinov <logvinov.leon@gmail.com>2019-01-30 20:31:01 +0800
committerLeonid Logvinov <logvinov.leon@gmail.com>2019-01-30 21:04:19 +0800
commite23f90e41c177552aa7e1bde98c6ba1b7acb9d4f (patch)
treeafd1a7ad10590690af1543ad57e51a62a268dc71 /packages/sol-tracing-utils
parent25e42c0ad47e9ec06e474cd12a488ae837660302 (diff)
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Fix the cannot read property range of null bug
Diffstat (limited to 'packages/sol-tracing-utils')
-rw-r--r--packages/sol-tracing-utils/CHANGELOG.json4
-rw-r--r--packages/sol-tracing-utils/src/ast_visitor.ts4
2 files changed, 7 insertions, 1 deletions
diff --git a/packages/sol-tracing-utils/CHANGELOG.json b/packages/sol-tracing-utils/CHANGELOG.json
index 16a12ca63..024e896da 100644
--- a/packages/sol-tracing-utils/CHANGELOG.json
+++ b/packages/sol-tracing-utils/CHANGELOG.json
@@ -17,6 +17,10 @@
{
"note": "Print resasonable error message on bytecode collision",
"pr": 1535
+ },
+ {
+ "note": "Fix the bug in `ASTVisitor` causing the 'cannot read property `range` of `null`' error",
+ "pr": 1557
}
]
},
diff --git a/packages/sol-tracing-utils/src/ast_visitor.ts b/packages/sol-tracing-utils/src/ast_visitor.ts
index 1ac9cd1de..27f19378b 100644
--- a/packages/sol-tracing-utils/src/ast_visitor.ts
+++ b/packages/sol-tracing-utils/src/ast_visitor.ts
@@ -89,7 +89,9 @@ export class ASTVisitor {
this._visitStatement(ast);
}
public ExpressionStatement(ast: Parser.ExpressionStatement): void {
- this._visitStatement(ast.expression);
+ if (!_.isNull(ast.expression)) {
+ this._visitStatement(ast.expression);
+ }
}
public InlineAssemblyStatement(ast: Parser.InlineAssemblyStatement): void {
this._visitStatement(ast);