Module: Fdlint::Parser::JS::Expr::Primary
- Included in:
- Expr
- Defined in:
- lib/fdlint/parser/js/expr/primary.rb
Constant Summary collapse
- R_IDENTIFY =
/[a-zA-Z_$][\w$]*/
- RESERVED_WORDS =
%w( break case catch continue debugger default delete do else finally for function if in instanceof new return switch this throw try typeof var void while with class const enum export extends import super implements interface let package private protected public static yield null true false )
- R_THIS_NULL_BOOLEAN =
/(?:this|null|true|false)\b/
- R_HEX =
/0[xX]/
- R_NUMBERIC =
/[+-]?(?:\d|(?:[.]\d))/
- R_STRING =
/['"]/
- R_REGEXP =
/\/[^\/]/
Instance Method Summary collapse
- #parse_expr_array ⇒ Object
- #parse_expr_identifier ⇒ Object
- #parse_expr_literal_hex ⇒ Object
- #parse_expr_literal_number ⇒ Object
- #parse_expr_literal_regexp ⇒ Object
- #parse_expr_literal_string ⇒ Object
- #parse_expr_literal_this_null_boolean ⇒ Object
- #parse_expr_object ⇒ Object
- #parse_expr_object_item ⇒ Object
- #parse_expr_parentheses ⇒ Object
- #parse_expr_primary ⇒ Object
Instance Method Details
#parse_expr_array ⇒ Object
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# File 'lib/fdlint/parser/js/expr/primary.rb', line 68 def parse_expr_array log 'parse expr array' pos = skip /\[/ elms = batch(:parse_expr_assignment, /\]/, /,/) skip /\]/ create_expression 'array', Elements.new(elms), pos end |
#parse_expr_identifier ⇒ Object
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# File 'lib/fdlint/parser/js/expr/primary.rb', line 105 def parse_expr_identifier log 'parse expr identifier' id = scan(R_IDENTIFY) RESERVED_WORDS.include?(id.text) ? parse_error("identifier can not be reserved word: #{id}") : id create_expression 'id', id end |
#parse_expr_literal_hex ⇒ Object
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# File 'lib/fdlint/parser/js/expr/primary.rb', line 137 def parse_expr_literal_hex log 'parse expr literal hex' expr = scan /0[xX][0-9a-fA-F]+/ create_expression 'number', expr end |
#parse_expr_literal_number ⇒ Object
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# File 'lib/fdlint/parser/js/expr/primary.rb', line 143 def parse_expr_literal_number log 'parse expr literal number' expr = scan /[+-]?(?:(?:\d*[.]\d+)|(?:\d+))(?:[eE][+-]?\d+)?/ create_expression 'number', expr end |
#parse_expr_literal_regexp ⇒ Object
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# File 'lib/fdlint/parser/js/expr/primary.rb', line 149 def parse_expr_literal_regexp log 'parse expr literal regexp' expr = scan %r{/(?:(?:\\.)|(?:\[(?:\\.|[^\[\]])+\])|[^/\\])+/[a-z]*} create_expression 'regexp', expr end |
#parse_expr_literal_string ⇒ Object
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# File 'lib/fdlint/parser/js/expr/primary.rb', line 123 def parse_expr_literal_string log 'parse expr literal string' expr = if check /'/ scan /'(?:(?:\\')|(?:\\\n)|[^'\n])*'/ elsif check /"/ scan /"(?:(?:\\")|(?:\\\n)|[^"\n])*"/ else raise 'assert false' end create_expression 'string', expr end |
#parse_expr_literal_this_null_boolean ⇒ Object
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# File 'lib/fdlint/parser/js/expr/primary.rb', line 115 def parse_expr_literal_this_null_boolean log 'parse expr literal this null boolean' expr = scan /this|null|true|false/ type = expr.text.gsub(/true|false/, 'boolean') create_expression type, expr end |
#parse_expr_object ⇒ Object
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# File 'lib/fdlint/parser/js/expr/primary.rb', line 78 def parse_expr_object log 'parse expr object' pos = skip /\{/ elms = batch(:parse_expr_object_item, /\}/, /,/) skip /\}/ create_expression 'object', Elements.new(elms), pos end |
#parse_expr_object_item ⇒ Object
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# File 'lib/fdlint/parser/js/expr/primary.rb', line 88 def parse_expr_object_item log 'parse expr object item' name = if check R_STRING parse_expr_literal_string elsif check R_NUMBERIC parse_expr_literal_number else parse_expr_identifier end skip /:/ value = parse_expr_assignment Expression.new ':', name, value end |
#parse_expr_parentheses ⇒ Object
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# File 'lib/fdlint/parser/js/expr/primary.rb', line 58 def parse_expr_parentheses log 'parse expr parentheses' pos = skip /\(/ expr = parse_expression skip /\)/ create_expression 'parentheses', expr, pos end |
#parse_expr_primary ⇒ Object
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# File 'lib/fdlint/parser/js/expr/primary.rb', line 25 def parse_expr_primary log "parse expr primary" if check /\(/ parse_expr_parentheses elsif check /\[/ parse_expr_array elsif check /\{/ parse_expr_object # literal elsif check R_THIS_NULL_BOOLEAN parse_expr_literal_this_null_boolean elsif check R_HEX parse_expr_literal_hex elsif check R_NUMBERIC parse_expr_literal_number elsif check R_STRING parse_expr_literal_string elsif check R_REGEXP parse_expr_literal_regexp #~ else parse_expr_identifier end end |