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crates.io "ecmascript-parser" keyword

Top 1.7% on crates.io
swc_ecma_transforms_macros 1.0.1 💰
Macros for swc_ecma_transforms.
17 versions - Latest release: 11 months ago - 16 dependent packages - 932 dependent repositories - 4.79 million downloads total - 31,152 stars on GitHub - 2 maintainers
Top 1.8% on crates.io
swc_ecma_loader 22.0.0 💰
General ecmascript loader used for transforms
220 versions - Latest release: 6 days ago - 16 dependent packages - 843 dependent repositories - 5.07 million downloads total - 33,415 stars on GitHub - 2 maintainers
Top 1.9% on crates.io
swc_css_ast 21.0.1 💰
AST definitions of css
302 versions - Latest release: 6 days ago - 19 dependent packages - 558 dependent repositories - 1.19 million downloads total - 29,915 stars on GitHub - 2 maintainers
Top 1.8% on crates.io
swc_ecma_transforms 53.0.0 💰
rust port of babel and closure compiler.
941 versions - Latest release: 5 days ago - 18 dependent packages - 567 dependent repositories - 2.86 million downloads total - 29,915 stars on GitHub - 2 maintainers
Top 1.7% on crates.io
swc_visit 2.0.1 💰
Visitor generator for stable rustc
37 versions - Latest release: 11 months ago - 11 dependent packages - 1,232 dependent repositories - 24 million downloads total - 29,915 stars on GitHub - 2 maintainers
Top 2.0% on crates.io
swc_css_parser 21.0.0 💰
CSS parser
411 versions - Latest release: about 2 months ago - 16 dependent packages - 558 dependent repositories - 1.31 million downloads total - 29,915 stars on GitHub - 2 maintainers
Top 1.2% on crates.io
swc_atoms 9.0.1 💰
Atoms for the swc project.
102 versions - Latest release: 6 days ago - 114 dependent packages - 1,262 dependent repositories - 25.4 million downloads total - 31,152 stars on GitHub - 2 maintainers
Top 1.7% on crates.io
string_enum 1.0.2 💰
String based enum.
17 versions - Latest release: 11 months ago - 10 dependent packages - 1,268 dependent repositories - 23.9 million downloads total - 29,915 stars on GitHub - 2 maintainers
Top 1.8% on crates.io
swc_trace_macro 2.0.2 💰
Proc macro for performance trace of swc
8 versions - Latest release: 11 months ago - 19 dependent packages - 653 dependent repositories - 3.1 million downloads total - 33,384 stars on GitHub - 2 maintainers
Top 1.5% on crates.io
swc_macros_common 1.0.1 💰
Common utilities for swc macros.
23 versions - Latest release: 11 months ago - 20 dependent packages - 1,270 dependent repositories - 24.2 million downloads total - 29,915 stars on GitHub - 2 maintainers
Top 1.9% on crates.io
swc_config 5.0.0 💰
Types for configuring swc
25 versions - Latest release: 6 days ago - 12 dependent packages - 786 dependent repositories - 5.17 million downloads total - 33,415 stars on GitHub - 2 maintainers
Top 2.1% on crates.io
swc_ecma_transforms_proposal 41.0.2 💰
rust port of babel and closure compiler.
728 versions - Latest release: about 1 month ago - 7 dependent packages - 847 dependent repositories - 4.64 million downloads total - 33,346 stars on GitHub - 2 maintainers
Top 3.6% on crates.io
swc_ecma_lints 31.0.0 💰
Linter for the swc project
568 versions - Latest release: 5 days ago - 3 dependent packages - 530 dependent repositories - 1.67 million downloads total - 33,415 stars on GitHub - 2 maintainers
Top 2.0% on crates.io
swc_ecma_minifier 53.0.0 💰
EcmaScript code minifier.
1,335 versions - Latest release: 5 days ago - 14 dependent packages - 464 dependent repositories - 3.67 million downloads total - 29,915 stars on GitHub - 2 maintainers
Top 1.2% on crates.io
swc_ecma_parser 39.1.0 💰
Feature-complete es2019 parser.
712 versions - Latest release: 7 days ago - 108 dependent packages - 1,261 dependent repositories - 29.1 million downloads total - 29,915 stars on GitHub - 2 maintainers
Top 10.0% on crates.io
swc_html 33.0.0 💰
HTML apis for rust
992 versions - Latest release: about 2 months ago - 16 dependent repositories - 1.28 million downloads total - 29,221 stars on GitHub - 2 maintainers
swc_css_lints 23.0.0 💰
CSS linter
272 versions - Latest release: 5 days ago - 279 thousand downloads total - 29,915 stars on GitHub - 2 maintainers
Top 8.6% on crates.io
swc_estree_compat 42.0.0 💰
Compatibility layer between estree and swc
1,090 versions - Latest release: 5 days ago - 1 dependent package - 1 dependent repositories - 1.2 million downloads total - 29,915 stars on GitHub - 2 maintainers
Top 7.1% on crates.io
swc_compiler_base 56.0.0 💰
Base crate for the 'swc' crate. This is not a public API.
256 versions - Latest release: 5 days ago - 1 dependent package - 9 dependent repositories - 1.05 million downloads total - 29,915 stars on GitHub - 2 maintainers
Top 2.9% on crates.io
swc_plugin_proxy 23.0.0 💰
Proxy structs to the hosts original structs for the plugin
217 versions - Latest release: about 2 months ago - 5 dependent packages - 538 dependent repositories - 2.62 million downloads total - 29,915 stars on GitHub - 2 maintainers
Top 2.1% on crates.io
swc_css_visit 21.0.0 💰
Visitor for css
299 versions - Latest release: about 2 months ago - 13 dependent packages - 557 dependent repositories - 1.14 million downloads total - 29,221 stars on GitHub - 2 maintainers
swc_ecma_regexp_visit 0.10.0 💰
Visitor for ECMAScript regular expressions
12 versions - Latest release: about 2 months ago - 92.3 thousand downloads total - 33,349 stars on GitHub - 2 maintainers
swc_plugin_js_api 0.8.0 💰
API for the swc plugins
9 versions - Latest release: over 4 years ago - 3 dependent packages - 2 dependent repositories - 11.2 thousand downloads total - 29,915 stars on GitHub - 1 maintainer
hstr 3.0.5 💰
A string type which is optimized for hash operations.
39 versions - Latest release: 6 days ago - 2 dependent packages - 1 dependent repositories - 21.1 million downloads total - 33,349 stars on GitHub - 2 maintainers
rplugin_macros 0.1.1 💰
Macros for rpluign, rust plugin system for AST processing
2 versions - Latest release: over 4 years ago - 1 dependent package - 1 dependent repositories - 4.95 thousand downloads total - 29,915 stars on GitHub - 1 maintainer
Top 3.7% on crates.io
swc_ecma_quote_macros 39.0.0 💰
Quasi quotation system for ecmascript
329 versions - Latest release: about 1 month ago - 2 dependent packages - 400 dependent repositories - 1.12 million downloads total - 29,915 stars on GitHub - 2 maintainers
Top 2.1% on crates.io
swc_node_base 0.5.9 💰
Speedy web compiler
17 versions - Latest release: over 2 years ago - 21 dependent packages - 325 dependent repositories - 283 thousand downloads total - 29,915 stars on GitHub - 2 maintainers
Top 9.8% on crates.io
swc_xml_codegen 21.0.0 💰
XML code generator for the swc project
167 versions - Latest release: about 2 months ago - 1 dependent package - 1 dependent repositories - 192 thousand downloads total - 29,221 stars on GitHub - 2 maintainers
swc_util_types 1.0.0 removed 💰
Very useful types for the swc project.
1 version - Latest release: 12 months ago - 517 downloads total - 33,346 stars on GitHub - 2 maintainers
Top 6.5% on crates.io
swc_xml_visit 21.0.0 💰
Visitor for xml
159 versions - Latest release: about 2 months ago - 3 dependent packages - 8 dependent repositories - 178 thousand downloads total - 29,915 stars on GitHub - 2 maintainers
Top 2.9% on crates.io
swc_ecma_testing 22.0.0 💰
Testing utilities for ecmascript
120 versions - Latest release: about 2 months ago - 4 dependent packages - 528 dependent repositories - 2.42 million downloads total - 29,221 stars on GitHub - 2 maintainers
swc_es_minifier 0.3.0 💰
2-pass minifier for swc_es_ast
2 versions - Latest release: about 2 months ago - 25 downloads total - 33,346 stars on GitHub - 1 maintainer
swc_cli 0.111.0 💰
Commandline for SWC
419 versions - Latest release: 5 days ago - 402 thousand downloads total - 29,221 stars on GitHub - 1 maintainer
swc_es_transforms 0.3.0 💰
2-pass transform pipeline for swc_es_ast
2 versions - Latest release: about 2 months ago - 25 downloads total - 33,346 stars on GitHub - 1 maintainer
swc_ecma_hooks 0.7.0 💰
Composable hooks for swc ecmascript visitors
7 versions - Latest release: about 2 months ago - 324 thousand downloads total - 33,349 stars on GitHub - 2 maintainers
swc_es_semantics 0.3.0 💰
High-performance semantics analysis for swc_es_ast
2 versions - Latest release: about 2 months ago - 65 downloads total - 33,349 stars on GitHub - 1 maintainer
Top 5.1% on crates.io
swc_html_codegen 22.0.0 💰
HTML code generator for the swc project
230 versions - Latest release: about 2 months ago - 4 dependent packages - 27 dependent repositories - 497 thousand downloads total - 29,915 stars on GitHub - 2 maintainers
Top 10.0% on crates.io
swc_cli_impl 66.0.0 💰
Commandline for SWC (Internal crate with implementation)
284 versions - Latest release: 5 days ago - 1 dependent package - 1 dependent repositories - 299 thousand downloads total - 29,915 stars on GitHub - 2 maintainers
Top 2.9% on crates.io
swc_config_macro 1.0.1 💰
Macros to prevent mistakes
7 versions - Latest release: 11 months ago - 3 dependent packages - 786 dependent repositories - 5.06 million downloads total - 29,915 stars on GitHub - 2 maintainers
swc_ecma_plugin_ast 0.8.0 💰
Special AST for swc, which can be passed to dynamic libraries directly
11 versions - Latest release: over 4 years ago - 3 dependent packages - 2 dependent repositories - 14.2 thousand downloads total - 29,185 stars on GitHub - 1 maintainer
Top 6.3% on crates.io
swc_html_minifier 53.0.0 💰
HTML minifier
1,051 versions - Latest release: 5 days ago - 2 dependent packages - 20 dependent repositories - 1.39 million downloads total - 29,221 stars on GitHub - 2 maintainers
Top 2.3% on crates.io
swc_timer 1.0.0 💰
Timings for swc
143 versions - Latest release: over 1 year ago - 7 dependent packages - 540 dependent repositories - 2.09 million downloads total - 29,915 stars on GitHub - 2 maintainers
swc_plugin_build 0.0.0 removed 💰
Base for swc plugins
1 version - Latest release: almost 5 years ago - 1.6 thousand downloads total - 29,714 stars on GitHub - 1 maintainer
swc_ecma_lexer 38.0.1 💰
Feature-complete es2019 parser.
55 versions - Latest release: 24 days ago - 3.12 million downloads total - 33,399 stars on GitHub - 2 maintainers
Top 6.0% on crates.io
swc_xml_ast 21.0.0 💰
AST definitions of xml
149 versions - Latest release: about 2 months ago - 4 dependent packages - 6 dependent repositories - 172 thousand downloads total - 29,915 stars on GitHub - 2 maintainers
swc_babel_visit 0.1.0 💰
Visitor implementation for babel nodes
1 version - Latest release: over 4 years ago - 1 dependent package - 2.26 thousand downloads total - 29,221 stars on GitHub - 1 maintainer
swc_babel_compat 0.2.0 💰
Compatibility layer between babel and swc
2 versions - Latest release: over 4 years ago - 2.77 thousand downloads total - 29,714 stars on GitHub - 1 maintainer
Top 4.2% on crates.io
swc_html_visit 21.0.0 💰
Visitor for html
185 versions - Latest release: about 2 months ago - 6 dependent packages - 27 dependent repositories - 445 thousand downloads total - 29,915 stars on GitHub - 2 maintainers
Top 2.0% on crates.io
swc_bundler 49.0.0 💰
Very fast ecmascript bundler
1,074 versions - Latest release: 5 days ago - 12 dependent packages - 582 dependent repositories - 2.96 million downloads total - 29,915 stars on GitHub - 2 maintainers
swc_plugin_comments 0.1.2 💰
Internal sharable storage for the comments between host to the plugin
3 versions - Latest release: about 4 years ago - 3 dependent packages - 5.22 thousand downloads total - 29,915 stars on GitHub - 1 maintainer
jsdoc 21.0.0 💰
JsDoc parser writen in rust
374 versions - Latest release: about 2 months ago - 1 dependent package - 8 dependent repositories - 591 thousand downloads total - 29,915 stars on GitHub - 2 maintainers
Top 6.4% on crates.io
swc_ecma_compat_es2022 45.0.1 💰
ES2022 compatibility transforms
163 versions - Latest release: 5 days ago - 2 dependent packages - 4 dependent repositories - 1.03 million downloads total - 29,915 stars on GitHub - 2 maintainers
swc_xml 21.0.0 💰
XML apis for rust
161 versions - Latest release: about 2 months ago - 1 dependent package - 1 dependent repositories - 176 thousand downloads total - 29,915 stars on GitHub - 2 maintainers
Top 7.6% on crates.io
swc_ecma_compat_es2021 43.0.1 💰
ES2021 compatibility transforms
154 versions - Latest release: 5 days ago - 1 dependent package - 4 dependent repositories - 1.02 million downloads total - 29,915 stars on GitHub - 2 maintainers
swc_x_optimizer 0.1.0 removed 💰
Cross-module optimizer built on SWC
1 version - Latest release: almost 2 years ago - 1.36 thousand downloads total - 29,915 stars on GitHub - 1 maintainer
swc_ecma_regexp 0.10.0 💰
ECMAScript regular expressions
12 versions - Latest release: about 2 months ago - 92 thousand downloads total - 33,349 stars on GitHub - 2 maintainers
swc_ecma_compat_regexp 4.0.0 💰
Transpiles modern RegExp features to ES5-compatible patterns
5 versions - Latest release: about 2 months ago - 89.9 thousand downloads total - 33,349 stars on GitHub - 2 maintainers
Top 3.6% on crates.io
swc_graph_analyzer 14.0.1 💰
Graph analyzer
163 versions - Latest release: 11 months ago - 2 dependent packages - 531 dependent repositories - 1.66 million downloads total - 29,221 stars on GitHub - 2 maintainers
Top 2.1% on crates.io
swc_ecma_transforms_module 47.0.0 💰
rust port of babel and closure compiler.
788 versions - Latest release: 5 days ago - 11 dependent packages - 614 dependent repositories - 2.21 million downloads total - 29,915 stars on GitHub - 2 maintainers
swc_typescript 28.0.2 💰
Proc macro for performance trace of swc
54 versions - Latest release: 4 days ago - 420 thousand downloads total - 29,915 stars on GitHub - 2 maintainers
Top 3.4% on crates.io
enum_kind 0.2.2 💰
Easily manage values related to enum.
7 versions - Latest release: about 3 years ago - 2 dependent packages - 651 dependent repositories - 1.49 million downloads total - 29,915 stars on GitHub - 1 maintainer
Top 3.4% on crates.io
swc_plugin_macro 1.1.0 💰
Macro support for authoring plugin's transform fn
32 versions - Latest release: about 1 year ago - 6 dependent packages - 178 dependent repositories - 2.08 million downloads total - 29,221 stars on GitHub - 2 maintainers
Top 5.5% on crates.io
swc_ecma_quote 39.0.0 💰
Quasi quotation system for ecmascript
337 versions - Latest release: about 1 month ago - 4 dependent packages - 10 dependent repositories - 388 thousand downloads total - 29,915 stars on GitHub - 2 maintainers
Top 7.6% on crates.io
swc_ecma_compat_es2019 43.0.1 💰
ES2019 compatibility transforms
159 versions - Latest release: 5 days ago - 1 dependent package - 4 dependent repositories - 1.03 million downloads total - 29,221 stars on GitHub - 2 maintainers
swc_ts_fast_strip 50.0.0 💰
Super-fast TypeScript stripper based on SWC
34 versions - Latest release: 5 days ago - 89.8 thousand downloads total - 33,399 stars on GitHub - 2 maintainers
Top 8.2% on crates.io
swc_ecma_compat_es2020 45.0.1 💰
ES2020 compatibility transforms
164 versions - Latest release: 5 days ago - 1 dependent package - 2 dependent repositories - 1.03 million downloads total - 29,915 stars on GitHub - 2 maintainers
swc_ts_fast_strip_binding 0.15.0 💰
Binding module for swc_ts_fast_strip
15 versions - Latest release: 5 days ago - 242 downloads total - 33,349 stars on GitHub - 2 maintainers
swc_estree_visit 0.1.0 💰
Visitor implementation for estree nodes
1 version - Latest release: over 4 years ago - 1 dependent package - 1.54 thousand downloads total - 29,915 stars on GitHub - 1 maintainer
swc_sourcemap 10.0.2 💰
Forked from https://github.com/getsentry/rust-sourcemap
7 versions - Latest release: 3 months ago - 2.39 million downloads total - 33,399 stars on GitHub - 2 maintainers
Top 2.4% on crates.io
swc_css_utils 21.0.0 💰
Port of stylis
293 versions - Latest release: about 2 months ago - 7 dependent packages - 557 dependent repositories - 1.11 million downloads total - 29,915 stars on GitHub - 2 maintainers
swc_es_ast 0.3.0 💰
Arena-based ES AST definitions.
3 versions - Latest release: about 2 months ago - 201 downloads total - 33,399 stars on GitHub - 1 maintainer
fastmem 0.1.0 💰
Configurable utilities for fast memory operations
2 versions - Latest release: about 4 years ago - 3.01 thousand downloads total - 29,915 stars on GitHub - 1 maintainer
swc_babel_ast 0.1.0 💰
Babel AST node definitions
1 version - Latest release: over 4 years ago - 2 dependent packages - 1 dependent repositories - 2.96 thousand downloads total - 29,915 stars on GitHub - 1 maintainer
Top 2.6% on crates.io
swc_css_prefixer 26.0.0 💰
Port of stylis
301 versions - Latest release: 5 days ago - 7 dependent packages - 448 dependent repositories - 933 thousand downloads total - 29,915 stars on GitHub - 2 maintainers
Top 2.2% on crates.io
swc_ecma_transforms_classes 42.0.0 💰
Helper for transforms for the swc project
553 versions - Latest release: about 1 month ago - 6 dependent packages - 839 dependent repositories - 4.86 million downloads total - 29,915 stars on GitHub - 2 maintainers
Top 2.7% on crates.io
swc_visit_macros 0.5.13 💰
Visitor generator for stable rustc
28 versions - Latest release: almost 2 years ago - 3 dependent packages - 1,232 dependent repositories - 8.72 million downloads total - 29,915 stars on GitHub - 2 maintainers
Top 2.3% on crates.io
swc_ecma_codegen_macros 2.0.2 💰
Macros for swc_ecma_codegen.
21 versions - Latest release: 11 months ago - 5 dependent packages - 1,083 dependent repositories - 7.61 million downloads total - 29,915 stars on GitHub - 2 maintainers
bright_swc_atoms 0.4.0 💰
Atoms for the swc project.
1 version - Latest release: almost 4 years ago - 1 dependent package - 2.26 thousand downloads total - 29,915 stars on GitHub - 1 maintainer
swc_ecma_transformer 14.1.0 💰
Compatibility layer for the ECMAScript standard
22 versions - Latest release: 5 days ago - 138 thousand downloads total - 33,399 stars on GitHub - 2 maintainers
Top 2.0% on crates.io
swc_cached 2.0.0 💰
Cached types for swc
26 versions - Latest release: over 1 year ago - 15 dependent packages - 526 dependent repositories - 3.13 million downloads total - 29,915 stars on GitHub - 2 maintainers
Top 2.2% on crates.io
better_scoped_tls 1.0.1 💰
scoped-tls, but with good error message
5 versions - Latest release: 11 months ago - 5 dependent packages - 1,090 dependent repositories - 23.3 million downloads total - 29,221 stars on GitHub - 2 maintainers
Top 7.1% on crates.io
swc_xml_parser 21.0.0 💰
XML parser
161 versions - Latest release: about 2 months ago - 2 dependent packages - 6 dependent repositories - 185 thousand downloads total - 29,915 stars on GitHub - 2 maintainers
Top 7.2% on crates.io
swc_malloc 1.2.5 💰
Configures the best memory allocator for each platforms
11 versions - Latest release: 3 months ago - 13 dependent packages - 1 dependent repositories - 107 thousand downloads total - 29,915 stars on GitHub - 1 maintainer
swc_ecma_visit_std 5.0.0 💰
Visitors for swc ecmascript nodes which works on stable rustc
5 versions - Latest release: about 1 year ago - 2.81 thousand downloads total - 33,346 stars on GitHub - 2 maintainers
bright_swc_html_ast 0.24.0 💰
AST definitions of html
3 versions - Latest release: almost 4 years ago - 4.21 thousand downloads total - 29,915 stars on GitHub - 1 maintainer
swc_ecma_react_compiler 17.0.0 💰
SWC helpers for the React Compiler
22 versions - Latest release: about 2 months ago - 10.1 thousand downloads total - 33,399 stars on GitHub - 2 maintainers
swc_estree_macros 0.1.0 💰
Utility for AST converters
1 version - Latest release: over 4 years ago - 3 dependent packages - 2.29 thousand downloads total - 29,915 stars on GitHub - 1 maintainer
Top 2.5% on crates.io
swc_ecma_preset_env 54.0.0 💰
preset-env for the swc
876 versions - Latest release: 5 days ago - 7 dependent packages - 474 dependent repositories - 2.37 million downloads total - 29,915 stars on GitHub - 2 maintainers
swc_es_visit 0.3.0 💰
Visitor interfaces for swc_es_ast
3 versions - Latest release: about 2 months ago - 122 downloads total - 33,399 stars on GitHub - 1 maintainer
swc_plugin_backend_wasmer 10.0.0 💰
Runner backend for swc plugins. This crate is INTERNAL crate and used by swc itself.
11 versions - Latest release: about 2 months ago - 72.6 thousand downloads total - 33,399 stars on GitHub - 2 maintainers
bright_swc_css_ast 0.105.0 💰
AST definitions of css
1 version - Latest release: almost 4 years ago - 1.67 thousand downloads total - 29,915 stars on GitHub - 1 maintainer
better_string_cache_codegen 0.1.0 removed 💰
Fork of string_cache
1 version - Latest release: almost 4 years ago - 1.67 thousand downloads total - 29,915 stars on GitHub - 1 maintainer
better_string_cache 0.1.0 removed 💰
Fork of string_cache
1 version - Latest release: almost 4 years ago - 1.71 thousand downloads total - 29,915 stars on GitHub - 1 maintainer
swc_js_interop 0.0.1 removed 💰
Support for invoking js codes from rust code
1 version - Latest release: almost 4 years ago - 1.48 thousand downloads total - 29,915 stars on GitHub - 1 maintainer
swc_plugin_shared 0.0.0 💰
Base for swc plugins
1 version - Latest release: almost 5 years ago - 1.55 thousand downloads total - 29,915 stars on GitHub - 1 maintainer
Top 4.8% on crates.io
binding_macros 64.0.0 💰
Macros to build customized bindings interface
974 versions - Latest release: 5 days ago - 1 dependent package - 379 dependent repositories - 1.54 million downloads total - 29,915 stars on GitHub - 2 maintainers
Top 7.6% on crates.io
swc_ecma_compat_es2018 44.0.1 💰
ES2018 compatibility transforms
166 versions - Latest release: 5 days ago - 1 dependent package - 4 dependent repositories - 1.03 million downloads total - 29,915 stars on GitHub - 2 maintainers
Top 3.0% on crates.io
swc_plugin 1.0.1 💰
SDK for authoring swc plugin
121 versions - Latest release: 11 months ago - 11 dependent packages - 134 dependent repositories - 1.98 million downloads total - 29,915 stars on GitHub - 2 maintainers
swc_fast_ts_strip 23.0.2 💰
Super-fast TypeScript stripper based on SWC
63 versions - Latest release: 11 months ago - 59.5 thousand downloads total - 29,915 stars on GitHub - 2 maintainers
Top 3.2% on crates.io
from_variant 3.0.0 💰
Automatically derive From impls for enums
15 versions - Latest release: 7 months ago - 2 dependent packages - 1,260 dependent repositories - 24.1 million downloads total - 29,915 stars on GitHub - 2 maintainers
Related Keywords
babel 172 compiler 172 ecmascript 172 javascript 172 parser 172 rust 172 swc 172 typescript 172 typescript-compiler 172 typescript-parser 172 sourcemap 1 sourcemaps 1