Don't interpret backticks in comments in SQLX. (#303)

core/sqlx_parser.ts

@@ -218,8 +218,14 @@ function buildSqlxLexer() {
     match: /[^\S\r\n]*---[^\S\r\n]*$/,
     value: () => ""
   };
-  sqlLexer[SQL_LEXER_TOKEN_NAMES.SINGLE_LINE_COMMENT] = /--.*?$/;
-  sqlLexer[SQL_LEXER_TOKEN_NAMES.MULTI_LINE_COMMENT] = /\/\*[\s\S]*?\*\//;
+  sqlLexer[SQL_LEXER_TOKEN_NAMES.SINGLE_LINE_COMMENT] = {
+    match: /--.*?$/,
+    value: (value: string) => value.replace(/`/g, "\\`")
+  };
+  sqlLexer[SQL_LEXER_TOKEN_NAMES.MULTI_LINE_COMMENT] = {
+    match: /\/\*[\s\S]*?\*\//,
+    value: (value: string) => value.replace(/`/g, "\\`")
+  };
   sqlLexer[SQL_LEXER_TOKEN_NAMES.SINGLE_QUOTE_STRING] = /'(?:\\['\\]|[^\n'\\])*'/;
   sqlLexer[SQL_LEXER_TOKEN_NAMES.DOUBLE_QUOTE_STRING] = /"(?:\\["\\]|[^\n"\\])*"/;
   sqlLexer[SQL_LEXER_TOKEN_NAMES.START_JS_PLACEHOLDER] = {

examples/bigquery_language_v2/definitions/example_table.sqlx

@@ -1,6 +1,10 @@
 config { type: "table" }
 select * from ${ref("sample_data")}
 
+-- here is a `comment
+
+/* another ` backtick ` containing ```comment */
+
 post_operations {
     GRANT SELECT ON ${self()} TO GROUP "[email protected]"
     ---

tests/api/api.spec.ts

@@ -665,7 +665,9 @@ describe("@dataform/api", () => {
         expect(exampleTable).to.not.be.undefined;
         expect(exampleTable.type).equals("table");
         expect(exampleTable.query.trim()).equals(
-          `select * from \`tada-analytics.${schemaWithSuffix("df_integration_test")}.sample_data\``
+          `select * from \`tada-analytics.${schemaWithSuffix(
+            "df_integration_test"
+          )}.sample_data\`\n\n-- here is a \`comment\n\n/* another \` backtick \` containing \`\`\`comment */`
         );
         expect(exampleTable.dependencies).deep.equals(["sample_data"]);
         expect(exampleTable.preOps).to.eql([]);
@@ -745,7 +747,7 @@ describe("@dataform/api", () => {
         // Check testcase.
         const testCase = graph.tests.find(t => t.name === "example_test_case");
         expect(testCase.testQuery.trim()).equals(
-          "select * from (\n    select 'hi' as faked union all\n    select 'ben' as faked union all\n    select 'sup?' as faked\n)"
+          "select * from (\n    select 'hi' as faked union all\n    select 'ben' as faked union all\n    select 'sup?' as faked\n)\n\n-- here is a `comment\n\n/* another ` backtick ` containing ```comment */"
         );
         expect(testCase.expectedOutputQuery.trim()).equals(
           "select 'hi' as faked union all\nselect 'ben' as faked union all\nselect 'sup?' as faked"

version.bzl

@@ -1,3 +1,3 @@
 # NOTE: If you change the format of this line, you must change the bash command
 # in /scripts/publish to extract the version string correctly.
-DF_VERSION = "1.0.1"
+DF_VERSION = "1.0.2"