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Cache compiled tree-sitter queries (bug#79363)
This way major modes can compute font-lock settings and indentation rules dynamically when the major mode is enabled. We don't want to compute it at package load time because the grammar might not be installed at that point. (Grammar might be (semi)auto-installed when the major mode is enabled.) This commit adds treesit--query-cache and changes treesit-font-lock-rules to not compile the query. Instead, the queries are compiled in treesit-validate-and-compile-font-lock-rules. Go-ts-mode is modified to use this new framework. * lisp/progmodes/go-ts-mode.el (go-ts-mode--iota-query-supported-p): (go-ts-mode--method-elem-supported-p): (go-ts-mode--font-lock-settings-cached): Removed. (go-ts-mode--font-lock-settings): Simply return the result of treesit-font-lock-rules rather than saving to go-ts-mode--font-lock-settings-cached. Use treesit-query-with-optional for computed queries. * lisp/treesit.el (treesit--query-cache): New variable. (treesit-font-lock-settings): Add new field language. (treesit-font-lock-setting-language): New function. (treesit-query-with-optional): New function. (treesit-font-lock-recompute-features): Don't compile query and store language (because we can't derive from compiled query anymore). (treesit-replace-font-lock-feature-settings): Use the new language field. (treesit-validate-and-compile-font-lock-rules): Renamed from treesit-validate-font-lock-rules, add logic to compile queries. (treesit-major-mode-setup): Use treesit-validate-and-compile-font-lock-rules.
This commit is contained in:
Yuan Fu
parent
4565870dfa
commit
80a17f7a30
2 changed files with 203 additions and 153 deletions
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@ -150,140 +150,124 @@
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"max" "min" "new" "panic" "print" "println" "real" "recover")
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"Go built-in functions for tree-sitter font-locking.")
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(defun go-ts-mode--iota-query-supported-p ()
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"Return t if the iota query is supported by the tree-sitter-go grammar."
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(ignore-errors
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(or (treesit-query-string "" '((iota) @font-lock-constant-face) 'go) t)))
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;; tree-sitter-go changed method_spec to method_elem in
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;; https://github.com/tree-sitter/tree-sitter-go/commit/b82ab803d887002a0af11f6ce63d72884580bf33
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(defun go-ts-mode--method-elem-supported-p ()
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"Return t if Go grammar uses `method_elem' instead of `method_spec'."
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(ignore-errors
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(or (treesit-query-string "" '((method_elem) @cap) 'go) t)))
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(defvar go-ts-mode--font-lock-settings-cached nil
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"Cached tree-sitter font-lock settings for `go-ts-mode'.")
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(defun go-ts-mode--font-lock-settings ()
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"Return tree-sitter font-lock settings for `go-ts-mode'.
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"Return font-lock rules for `go-ts-mode'."
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(treesit-font-lock-rules
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:language 'go
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:feature 'bracket
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'(["(" ")" "[" "]" "{" "}"] @font-lock-bracket-face)
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Tree-sitter font-lock settings are evaluated the first time this
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function is called. Subsequent calls return the first evaluated value."
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(or go-ts-mode--font-lock-settings-cached
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(setq go-ts-mode--font-lock-settings-cached
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(treesit-font-lock-rules
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:language 'go
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:feature 'bracket
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'((["(" ")" "[" "]" "{" "}"]) @font-lock-bracket-face)
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:language 'go
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:feature 'comment
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'((comment) @font-lock-comment-face)
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:language 'go
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:feature 'comment
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'((comment) @font-lock-comment-face)
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:language 'go
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:feature 'builtin
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`((call_expression
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function: ((identifier) @font-lock-builtin-face
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(:match ,(rx-to-string
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`(seq bol
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(or ,@go-ts-mode--builtin-functions)
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eol))
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@font-lock-builtin-face))))
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:language 'go
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:feature 'builtin
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`((call_expression
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function: ((identifier) @font-lock-builtin-face
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(:match ,(rx-to-string
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`(seq bol
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(or ,@go-ts-mode--builtin-functions)
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eol))
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@font-lock-builtin-face))))
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:language 'go
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:feature 'constant
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(treesit-query-with-optional 'go
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'([(false) (nil) (true)] @font-lock-constant-face
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(const_declaration
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(const_spec name: (identifier) @font-lock-constant-face
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("," name: (identifier) @font-lock-constant-face)*)))
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;; Optional query added in newer version.
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'((iota) @font-lock-constant-face))
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:language 'go
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:feature 'constant
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`([(false) (nil) (true)] @font-lock-constant-face
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,@(when (go-ts-mode--iota-query-supported-p)
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'((iota) @font-lock-constant-face))
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(const_declaration
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(const_spec name: (identifier) @font-lock-constant-face
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("," name: (identifier) @font-lock-constant-face)*)))
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:language 'go
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:feature 'delimiter
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'((["," "." ";" ":"]) @font-lock-delimiter-face)
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:language 'go
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:feature 'delimiter
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'((["," "." ";" ":"]) @font-lock-delimiter-face)
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:language 'go
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:feature 'operator
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`([,@go-ts-mode--operators] @font-lock-operator-face)
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:language 'go
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:feature 'operator
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`([,@go-ts-mode--operators] @font-lock-operator-face)
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:language 'go
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:feature 'definition
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(treesit-query-with-optional 'go
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'((function_declaration
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name: (identifier) @font-lock-function-name-face)
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(method_declaration
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name: (field_identifier) @font-lock-function-name-face)
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(field_declaration
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name: (field_identifier) @font-lock-property-name-face)
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(parameter_declaration
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name: (identifier) @font-lock-variable-name-face)
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(variadic_parameter_declaration
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name: (identifier) @font-lock-variable-name-face)
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(short_var_declaration
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left: (expression_list
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(identifier) @font-lock-variable-name-face
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("," (identifier) @font-lock-variable-name-face)*))
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(var_spec name: (identifier) @font-lock-variable-name-face
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("," name: (identifier) @font-lock-variable-name-face)*)
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(range_clause
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left: (expression_list
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(identifier) @font-lock-variable-name-face)))
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;; tree-sitter-go changed method_spec to method_elem in
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;; https://github.com/tree-sitter/tree-sitter-go/commit/b82ab803d887002a0af11f6ce63d72884580bf33
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'((method_elem
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name: (field_identifier) @font-lock-function-name-face))
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'((method_spec
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name: (field_identifier) @font-lock-function-name-face)))
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:language 'go
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:feature 'definition
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`((function_declaration
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name: (identifier) @font-lock-function-name-face)
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(method_declaration
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name: (field_identifier) @font-lock-function-name-face)
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(,(if (go-ts-mode--method-elem-supported-p)
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'method_elem
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'method_spec)
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name: (field_identifier) @font-lock-function-name-face)
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(field_declaration
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name: (field_identifier) @font-lock-property-name-face)
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(parameter_declaration
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name: (identifier) @font-lock-variable-name-face)
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(variadic_parameter_declaration
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name: (identifier) @font-lock-variable-name-face)
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(short_var_declaration
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left: (expression_list
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(identifier) @font-lock-variable-name-face
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("," (identifier) @font-lock-variable-name-face)*))
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(var_spec name: (identifier) @font-lock-variable-name-face
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("," name: (identifier) @font-lock-variable-name-face)*)
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(range_clause
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left: (expression_list
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(identifier) @font-lock-variable-name-face)))
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:language 'go
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:feature 'function
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'((call_expression
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function: (identifier) @font-lock-function-call-face)
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(call_expression
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function: (selector_expression
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field: (field_identifier) @font-lock-function-call-face)))
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:language 'go
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:feature 'function
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'((call_expression
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function: (identifier) @font-lock-function-call-face)
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(call_expression
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function: (selector_expression
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field: (field_identifier) @font-lock-function-call-face)))
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:language 'go
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:feature 'keyword
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`([,@go-ts-mode--keywords] @font-lock-keyword-face)
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:language 'go
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:feature 'keyword
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`([,@go-ts-mode--keywords] @font-lock-keyword-face)
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:language 'go
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:feature 'label
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'((label_name) @font-lock-constant-face)
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:language 'go
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:feature 'label
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'((label_name) @font-lock-constant-face)
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:language 'go
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:feature 'number
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'([(float_literal)
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(imaginary_literal)
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(int_literal)] @font-lock-number-face)
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:language 'go
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:feature 'number
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'([(float_literal)
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(imaginary_literal)
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(int_literal)] @font-lock-number-face)
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:language 'go
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:feature 'string
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'([(interpreted_string_literal)
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(raw_string_literal)
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(rune_literal)] @font-lock-string-face)
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:language 'go
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:feature 'string
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'([(interpreted_string_literal)
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(raw_string_literal)
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(rune_literal)] @font-lock-string-face)
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:language 'go
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:feature 'type
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'([(package_identifier) (type_identifier)] @font-lock-type-face)
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:language 'go
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:feature 'type
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'([(package_identifier) (type_identifier)] @font-lock-type-face)
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:language 'go
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:feature 'property
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'((selector_expression field: (field_identifier) @font-lock-property-use-face)
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(keyed_element (_ (identifier) @font-lock-property-use-face)))
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:language 'go
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:feature 'property
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'((selector_expression field: (field_identifier) @font-lock-property-use-face)
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(keyed_element (_ (identifier) @font-lock-property-use-face)))
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:language 'go
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:feature 'variable
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'((identifier) @font-lock-variable-use-face)
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:language 'go
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:feature 'variable
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'((identifier) @font-lock-variable-use-face)
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:language 'go
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:feature 'escape-sequence
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:override t
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'((escape_sequence) @font-lock-escape-face)
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:language 'go
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:feature 'escape-sequence
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:override t
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'((escape_sequence) @font-lock-escape-face)
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:language 'go
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:feature 'error
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:override t
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'((ERROR) @font-lock-warning-face)))))
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:language 'go
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:feature 'error
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:override t
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'((ERROR) @font-lock-warning-face)))
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(defvar-keymap go-ts-mode-map
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:doc "Keymap used in Go mode, powered by tree-sitter"
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138
lisp/treesit.el
138
lisp/treesit.el
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@ -1279,6 +1279,46 @@ LANGUAGE's name and return the resulting string."
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"Generic tree-sitter font-lock error"
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'treesit-error)
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;; String form and sexp form will be keyed differently, but that's not a
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;; big deal. We can't really use a weak table: it's possible that the
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;; query won't be referenced if all major modes are closed; error data
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;; isn't going to be referenced at all but we need to retend it.
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(defvar treesit--query-cache (make-hash-table :test #'equal)
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"Cache of compiled queries for font-lock/indentation.
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They keys are (LANG . QUERY), where QUERY can be in string or sexp form;
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the values are either compiled queries or error data (returned by
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`treesit-query-compile').
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This table only stores actually (eagerly) compiled queries. (Normally,
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compiled query objects are compiled lazily upon first use.)")
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(defun treesit--compile-query-with-cache (lang query)
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"Return the cached compiled QUERY for LANG.
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If QUERY isn't cached, compile it and save to cache.
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If QUERY is invalid, signals `treesit-query-error'. The fact that QUERY
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is invalid is also stored in cache, and the next call to this function
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with the same QUERY will signal too.
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QUERY is compared with `equal', so string form vs sexp form of a query,
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and the same query written differently are all considered separate
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queries."
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(let ((value (gethash (cons lang query) treesit--query-cache)))
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(if value
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(if (treesit-compiled-query-p value)
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value
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(signal 'treesit-query-error value))
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(condition-case err
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(let ((compiled (treesit-query-compile lang query 'eager)))
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(puthash (cons lang query) compiled treesit--query-cache)
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compiled)
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(treesit-query-error
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(puthash (cons lang query) (cdr err) treesit--query-cache)
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(signal 'treesit-query-error (cdr err)))))))
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(defvar-local treesit-font-lock-settings nil
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"A list of SETTINGs for treesit-based fontification.
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@ -1292,10 +1332,9 @@ debugging:
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Currently each SETTING has the form:
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(QUERY ENABLE FEATURE OVERRIDE REVERSE)
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(QUERY ENABLE FEATURE OVERRIDE REVERSE LANGUAGE)
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QUERY must be a compiled query. See Info node `(elisp)Pattern
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Matching' for how to write a query and compile it.
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QUERY is a tree-sitter query in either string, sexp, or compiled form.
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For SETTING to be activated for font-lock, ENABLE must be t. To
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disable this SETTING, set ENABLE to nil.
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@ -1309,7 +1348,9 @@ t, nil, append, prepend, keep. See more in
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`treesit-font-lock-rules'.
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If REVERSED is t, enable the QUERY when FEATURE is not in the feature
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list.")
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list.
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LANGUAGE is the language of QUERY.")
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;; Follow cl-defstruct naming conventions, in case we use cl-defstruct
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;; in the future.
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@ -1333,6 +1374,10 @@ list.")
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"Return the REVERSED flag of SETTING in `treesit-font-lock-settings'."
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(nth 4 setting))
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(defsubst treesit-font-lock-setting-language (setting)
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"Return the LANGUAGE of SETTING in `treesit-font-lock-settings'."
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(nth 5 setting))
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(defsubst treesit--font-lock-setting-clone-enable (setting)
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"Return enabled SETTING."
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(let ((new-setting (copy-tree setting)))
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@ -1433,9 +1478,10 @@ QUERY preceded by multiple pairs of :KEYWORD and VALUE:
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:KEYWORD VALUE... QUERY
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QUERY is a tree-sitter query in either the string, s-expression
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or compiled form. For each query, captured nodes are highlighted
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with the capture name as its face.
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QUERY is a tree-sitter query in either the string, s-expression or
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compiled form. For each query, captured nodes are highlighted with the
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capture name as its face. QUERY is compiled automatically when it's
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first used in a major mode.
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:KEYWORD and VALUE pairs preceding a QUERY add meta information
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to QUERY. For example,
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@ -1554,14 +1600,13 @@ name, it is ignored."
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(when (null current-feature)
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(signal 'treesit-font-lock-error
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`("Feature unspecified, use :feature keyword to specify the feature name for this query" ,token)))
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(if (treesit-compiled-query-p token)
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(push `(,lang token) result)
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(push `(,(treesit-query-compile lang token)
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t
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,current-feature
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,current-override
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,current-reversed)
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result))
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(push (list token
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t
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current-feature
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current-override
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current-reversed
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current-language)
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result)
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;; Clears any configurations set for this query.
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(setq current-language nil
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current-override nil
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@ -1571,6 +1616,22 @@ name, it is ignored."
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`("Unexpected value" ,token))))))
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(nreverse result))))
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(defun treesit-query-with-optional (language mandatory &rest queries)
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"Return the MANDATORY query plus first valid QUERIES.
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MANDATORY query is always included. Queries in QUERIES are included if
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they're valid. MANDATORY query and queries in QUERIES must be in sexp
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form for composition.
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Use LANGUAGE for validating queries."
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(declare (indent 1))
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(let (optional)
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(dolist (query queries)
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(ignore-errors
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(when (treesit--compile-query-with-cache language query)
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(push query optional))))
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(append mandatory optional)))
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;; `font-lock-fontify-region-function' has the LOUDLY argument, but
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;; `jit-lock-functions' doesn't pass that argument. So even if we set
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;; `font-lock-verbose' to t, if jit-lock is enabled (and it's almost
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@ -1635,8 +1696,7 @@ and leave settings for other languages unchanged."
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(additive (or add-list remove-list)))
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(cl-loop for idx = 0 then (1+ idx)
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for setting in treesit-font-lock-settings
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for lang = (treesit-query-language
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(treesit-font-lock-setting-query setting))
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for lang = (treesit-font-lock-setting-language setting)
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for feature = (treesit-font-lock-setting-feature setting)
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for current-value = (treesit-font-lock-setting-enable setting)
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for reversed = (treesit-font-lock-setting-reversed setting)
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@ -1681,12 +1741,10 @@ Return a value suitable for `treesit-font-lock-settings'"
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(let ((result nil))
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(dolist (new-setting new-settings)
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(let ((new-feature (treesit-font-lock-setting-feature new-setting))
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(new-lang (treesit-query-language
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(treesit-font-lock-setting-query new-setting))))
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(new-lang (treesit-font-lock-setting-language new-setting)))
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(dolist (setting settings)
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(let ((feature (treesit-font-lock-setting-feature setting))
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(lang (treesit-query-language
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(treesit-font-lock-setting-query setting))))
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(lang (treesit-font-lock-setting-language setting)))
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(if (and (eq new-lang lang) (eq new-feature feature))
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(push new-setting result)
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(push setting result))))))
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||||
|
|
@ -1729,8 +1787,11 @@ docstring of `treesit-font-lock-rules' for what is a feature."
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|||
(append rules
|
||||
(nthcdr feature-idx treesit-font-lock-settings)))))))
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||||
|
||||
(defun treesit-validate-font-lock-rules (settings)
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||||
"Validate font-lock rules in SETTINGS before major mode starts.
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(defun treesit-validate-and-compile-font-lock-rules (settings)
|
||||
"Validate and resolve font-lock rules in SETTINGS before major mode starts.
|
||||
|
||||
For each enabled setting, if query isn't compiled, compile it and
|
||||
replace the query In-PLACE.
|
||||
|
||||
If the tree-sitter grammar currently installed on the system is
|
||||
incompatible with the major mode's font-lock rules, this procedure will
|
||||
|
|
@ -1739,17 +1800,17 @@ user."
|
|||
(let ((faulty-features ()))
|
||||
(dolist (setting settings)
|
||||
(let* ((query (treesit-font-lock-setting-query setting))
|
||||
(lang (treesit-query-language query))
|
||||
(lang (treesit-font-lock-setting-language setting))
|
||||
(enabled (treesit-font-lock-setting-enable setting)))
|
||||
(when (and enabled
|
||||
(condition-case nil
|
||||
(progn
|
||||
(treesit-query-compile lang query 'eager)
|
||||
nil)
|
||||
(treesit-query-error t)))
|
||||
(push (cons (treesit-font-lock-setting-feature setting)
|
||||
lang)
|
||||
faulty-features))))
|
||||
(when enabled
|
||||
(condition-case nil
|
||||
(let ((compiled (treesit--compile-query-with-cache lang query)))
|
||||
;; Here we're modifying SETTINGS in-place.
|
||||
(setcar setting compiled))
|
||||
(treesit-query-error
|
||||
(push (cons (treesit-font-lock-setting-feature setting)
|
||||
lang)
|
||||
faulty-features))))))
|
||||
(when faulty-features
|
||||
(treesit-font-lock-recompute-features
|
||||
nil (mapcar #'car faulty-features))
|
||||
|
|
@ -1932,7 +1993,7 @@ If LOUDLY is non-nil, display some debugging information."
|
|||
(let* ((query (treesit-font-lock-setting-query setting))
|
||||
(enable (treesit-font-lock-setting-enable setting))
|
||||
(override (treesit-font-lock-setting-override setting))
|
||||
(language (treesit-query-language query))
|
||||
(language (treesit-font-lock-setting-language setting))
|
||||
(root-nodes (cl-remove-if-not
|
||||
(lambda (node)
|
||||
(eq (treesit-node-language node) language))
|
||||
|
|
@ -4368,6 +4429,11 @@ before calling this function."
|
|||
(setq treesit-primary-parser (treesit--guess-primary-parser)))
|
||||
;; Font-lock.
|
||||
(when treesit-font-lock-settings
|
||||
;; Functions like `treesit-font-lock-recompute-features' and
|
||||
;; `treesit-validate-and-compile-font-lock-rules' modifies
|
||||
;; `treesit-font-lock-settings' in-place, so make a copy to protect
|
||||
;; the original variable defined in major mode code.
|
||||
(setq treesit-font-lock-settings (copy-tree treesit-font-lock-settings))
|
||||
;; `font-lock-mode' wouldn't set up properly if
|
||||
;; `font-lock-defaults' is nil, see `font-lock-specified-p'.
|
||||
(setq-local font-lock-defaults
|
||||
|
|
@ -4375,8 +4441,8 @@ before calling this function."
|
|||
(font-lock-fontify-syntactically-function
|
||||
. treesit-font-lock-fontify-region)))
|
||||
(treesit-font-lock-recompute-features)
|
||||
(add-hook 'pre-redisplay-functions #'treesit--pre-redisplay 0 t)
|
||||
(treesit-validate-font-lock-rules treesit-font-lock-settings))
|
||||
(treesit-validate-and-compile-font-lock-rules treesit-font-lock-settings)
|
||||
(add-hook 'pre-redisplay-functions #'treesit--pre-redisplay 0 t))
|
||||
;; Syntax
|
||||
(add-hook 'syntax-propertize-extend-region-functions
|
||||
#'treesit--pre-syntax-ppss 0 t)
|
||||
|
|
|
|||
Loading…
Reference in a new issue