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" Vim syntax file
" Language: WebAssembly
" Maintainer: rhysd <lin90162@yahoo.co.jp>
" Last Change: Nov 14, 2023
" For bugs, patches and license go to https://github.com/rhysd/vim-wasm
if exists("b:current_syntax")
finish
endif
let s:cpo_save = &cpo
set cpo&vim
syn cluster watNotTop contains=watModule,watInstWithType,watInstGetSet,watInstGeneral,watParamInst,watControlInst,watSimdInst,watString,watNamedVar,watUnnamedVar,watFloat,watNumber,watComment,watList,watType
" Instructions
" https://webassembly.github.io/spec/core/text/instructions.html
" Note: memarg (align=,offset=) can be added to memory instructions
syn match watInstWithType "\%((\s*\)\@<=\<\%(i32\|i64\|f32\|f64\|memory\)\.[[:alnum:]_]\+\%(/\%(i32\|i64\|f32\|f64\)\)\=\>\%(\s\+\%(align\|offset\)=\)\=" contained display
syn match watInstGeneral "\%((\s*\)\@<=\<[[:alnum:]_]\+\>" contained display
syn match watInstGetSet "\%((\s*\)\@<=\<\%(local\|global\)\.\%(get\|set\)\>" contained display
" https://webassembly.github.io/spec/core/text/instructions.html#control-instructions
syn match watControlInst "\%((\s*\)\@<=\<\%(block\|end\|loop\|if\|then\|else\|unreachable\|nop\|br\|br_if\|br_table\|return\|call\|call_indirect\)\>" contained display
" https://webassembly.github.io/spec/core/text/instructions.html#parametric-instructions
syn match watParamInst "\%((\s*\)\@<=\<\%(drop\|select\)\>" contained display
" SIMD instructions
" https://webassembly.github.io/simd/core/text/instructions.html#simd-instructions
syn match watSimdInst "\<\%(v128\|i8x16\|i16x8\|i32x4\|i64x2\|f32x4\|f64x2)\)\.[[:alnum:]_]\+\%(\s\+\%(i8x16\|i16x8\|i32x4\|i64x2\|f32x4\|f64x2\)\)\=\>" contained display
" Identifiers
" https://webassembly.github.io/spec/core/text/values.html#text-id
syn match watNamedVar "$\+[[:alnum:]!#$%&'∗./:=><?@\\^_`~+-]*" contained contains=watEscapeUtf8
syn match watUnnamedVar "$\+\d\+[[:alnum:]!#$%&'∗./:=><?@\\^_`~+-]\@!" contained display
" Presuming the source text is itself encoded correctly, strings that do not
" contain any uses of hexadecimal byte escapes are always valid names.
" https://webassembly.github.io/spec/core/text/values.html#names
syn match watEscapedUtf8 "\\\x\{1,6}" contained containedin=watNamedVar display
" String literals
" https://webassembly.github.io/spec/core/text/values.html#strings
syn region watString start=+"+ skip=+\\\\\|\\"+ end=+"+ contained contains=watStringSpecial
syn match watStringSpecial "\\\x\x\|\\[tnr'\\\"]\|\\u\x\+" contained containedin=watString display
" Float literals
" https://webassembly.github.io/spec/core/text/values.html#floating-point
syn match watFloat "\<-\=\d\%(_\=\d\)*\%(\.\d\%(_\=\d\)*\)\=\%([eE][-+]\=\d\%(_\=\d\)*\)\=" display contained
syn match watFloat "\<-\=0x\x\%(_\=\x\)*\%(\.\x\%(_\=\x\)*\)\=\%([pP][-+]\=\d\%(_\=\d\)*\)\=" display contained
syn keyword watFloat inf nan contained
syn match watFloat "nan:0x\x\%(_\=\x\)*" display contained
" Integer literals
" https://webassembly.github.io/spec/core/text/values.html#integers
syn match watNumber "\<-\=\d\%(_\=\d\)*\>" display contained
syn match watNumber "\<-\=0x\x\%(_\=\x\)*\>" display contained
" Comments
" https://webassembly.github.io/spec/core/text/lexical.html#comments
syn region watComment start=";;" end="$"
syn region watComment start="(;;\@!" end=";)"
syn region watList matchgroup=watListDelimiter start="(;\@!" matchgroup=watListDelimiter end=";\@<!)" contains=@watNotTop
" Types
" https://webassembly.github.io/spec/core/text/types.html
" Note: `mut` was changed to `const`/`var` at Wasm 2.0
syn keyword watType i64 i32 f64 f32 param result funcref func externref extern mut v128 const var contained
syn match watType "\%((\_s*\)\@<=func\%(\_s*[()]\)\@=" display contained
" Modules
" https://webassembly.github.io/spec/core/text/modules.html
syn keyword watModule module type export import table memory global data elem contained
syn match watModule "\%((\_s*\)\@<=func\%(\_s\+\$\)\@=" display contained
syn sync maxlines=100
hi def link watModule PreProc
hi def link watListDelimiter Delimiter
hi def link watInstWithType Operator
hi def link watInstGetSet Operator
hi def link watInstGeneral Operator
hi def link watControlInst Statement
hi def link watSimdInst Operator
hi def link watParamInst Conditional
hi def link watString String
hi def link watStringSpecial Special
hi def link watNamedVar Identifier
hi def link watUnnamedVar PreProc
hi def link watFloat Float
hi def link watNumber Number
hi def link watComment Comment
hi def link watType Type
hi def link watEscapedUtf8 Special
let b:current_syntax = "wat"
let &cpo = s:cpo_save
unlet s:cpo_save
|
