Use static tables

mjguynn · mjguynn · commit 20050c68ce42 · 2022-07-23T15:40:46.000-07:00
Using `static` instead of `const` reduces the size of output binaries, .rlib, and .rmeta.
diff --git a/scripts/unicode.py b/scripts/unicode.py
@@ -440,7 +440,7 @@ def emit_module(
             module.write(
                 f"""
     /// Autogenerated. {subtable_count} sub-table(s). Consult [`lookup_width`] for layout info.
-    const TABLES_{i}: [u8; {len(byte_array)}] = ["""
+    static TABLES_{i}: [u8; {len(byte_array)}] = ["""
             )
             for (j, byte) in enumerate(byte_array):
                 # Add line breaks for every 15th entry (chosen to match what rustfmt does)
diff --git a/src/tables.rs b/src/tables.rs
@@ -86,7 +86,7 @@ pub mod charwidth {
     }
 
     /// Autogenerated. 1 sub-table(s). Consult [`lookup_width`] for layout info.
-    const TABLES_0: [u8; 256] = [
+    static TABLES_0: [u8; 256] = [
         0x00, 0x01, 0x02, 0x03, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D,
         0x0E, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x0F, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03,
         0x03, 0x0F, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09,
@@ -108,7 +108,7 @@ pub mod charwidth {
     ];
 
     /// Autogenerated. 19 sub-table(s). Consult [`lookup_width`] for layout info.
-    const TABLES_1: [u8; 2432] = [
+    static TABLES_1: [u8; 2432] = [
         0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x06, 0x08, 0x06, 0x09, 0x0A, 0x0B, 0x0C,
         0x0D, 0x0E, 0x0F, 0x10, 0x06, 0x06, 0x06, 0x11, 0x12, 0x13, 0x14, 0x06, 0x15, 0x16, 0x17,
         0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, 0x20, 0x21, 0x22, 0x23, 0x22, 0x24, 0x25,
@@ -275,7 +275,7 @@ pub mod charwidth {
     ];
 
     /// Autogenerated. 240 sub-table(s). Consult [`lookup_width`] for layout info.
-    const TABLES_2: [u8; 3840] = [
+    static TABLES_2: [u8; 3840] = [
         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55,
         0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55,
         0x55, 0x15, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x5D, 0xD7, 0x77, 0x75, 0xFF,

Original file line number	Diff line number	Diff line change
`@@ -440,7 +440,7 @@ def emit_module(`
`440`	`440`	`module.write(`
`441`	`441`	`f"""`
`442`	`442`	/// Autogenerated. {subtable_count} sub-table(s). Consult [`lookup_width`] for layout info.
`443`		`- const TABLES_{i}: [u8; {len(byte_array)}] = ["""`
	`443`	`+ static TABLES_{i}: [u8; {len(byte_array)}] = ["""`
`444`	`444`	`)`
`445`	`445`	`for (j, byte) in enumerate(byte_array):`
`446`	`446`	`# Add line breaks for every 15th entry (chosen to match what rustfmt does)`